<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2023 Workiva-->
<!--r:5ea3c205-21de-44cb-b61c-9f1d7917084f,g:e2b2b5e3-64a7-40a7-8ecb-1620eec40812-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:roleRef roleURI="http://www.soundhound.com/role/Cover" xlink:type="simple" xlink:href="soun-20230930.xsd#Cover"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/Cover" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_DocumentInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_4c6d61fb-17b5-4501-b74c-1d1a7e032c89" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_DocumentType"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_DocumentType_4c6d61fb-17b5-4501-b74c-1d1a7e032c89" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentQuarterlyReport_791f1a5c-9277-45e5-8c6c-4d20e882e701" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_DocumentQuarterlyReport"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_DocumentQuarterlyReport_791f1a5c-9277-45e5-8c6c-4d20e882e701" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_dea8f507-bfdb-43d3-afc3-f14516e11890" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_DocumentPeriodEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_DocumentPeriodEndDate_dea8f507-bfdb-43d3-afc3-f14516e11890" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentTransitionReport_00ae4e21-b61a-414a-ae73-7bdb98d10f31" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_DocumentTransitionReport"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_DocumentTransitionReport_00ae4e21-b61a-414a-ae73-7bdb98d10f31" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_3f9cf7d9-8c39-4143-91b0-c7e57ee90a6b" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityFileNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_EntityFileNumber_3f9cf7d9-8c39-4143-91b0-c7e57ee90a6b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_67113df6-4e00-45f2-8af4-54f7e423d709" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityRegistrantName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_EntityRegistrantName_67113df6-4e00-45f2-8af4-54f7e423d709" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_a208a588-5a01-44c0-af82-d9035fbce290" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_EntityIncorporationStateCountryCode_a208a588-5a01-44c0-af82-d9035fbce290" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_8cd9f0ed-8812-4296-8aeb-1d3eb6d8e649" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_EntityTaxIdentificationNumber_8cd9f0ed-8812-4296-8aeb-1d3eb6d8e649" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_c97d4d26-9b9a-4c04-8139-fc04a7c24053" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressAddressLine1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_EntityAddressAddressLine1_c97d4d26-9b9a-4c04-8139-fc04a7c24053" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_c34ecad1-f961-43c7-ae9d-7a160667ebab" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressCityOrTown"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_EntityAddressCityOrTown_c34ecad1-f961-43c7-ae9d-7a160667ebab" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_f8973364-8ebc-446c-9892-cb8df8828bb9" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressStateOrProvince"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_EntityAddressStateOrProvince_f8973364-8ebc-446c-9892-cb8df8828bb9" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_aae1a5c5-f3fb-45d8-9c22-d3be37863653" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressPostalZipCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_EntityAddressPostalZipCode_aae1a5c5-f3fb-45d8-9c22-d3be37863653" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_69d25a63-1f5c-48a2-8d80-e1c2b750556b" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_CityAreaCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_CityAreaCode_69d25a63-1f5c-48a2-8d80-e1c2b750556b" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_2d558581-d807-4b17-889b-390fded68cb7" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_LocalPhoneNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_LocalPhoneNumber_2d558581-d807-4b17-889b-390fded68cb7" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_aab0306e-54fe-4efc-8d9f-aef8cbd81bb2" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_Security12bTitle"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_Security12bTitle_aab0306e-54fe-4efc-8d9f-aef8cbd81bb2" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_3f871b2d-8f12-488f-a747-50132831c7fe" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_TradingSymbol"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_TradingSymbol_3f871b2d-8f12-488f-a747-50132831c7fe" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_04264b76-f21e-4eb0-a1e4-3774adc4bd9d" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_SecurityExchangeName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_SecurityExchangeName_04264b76-f21e-4eb0-a1e4-3774adc4bd9d" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCurrentReportingStatus_fefa0392-ce2b-4c0a-b875-836ed3cd4d07" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityCurrentReportingStatus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_EntityCurrentReportingStatus_fefa0392-ce2b-4c0a-b875-836ed3cd4d07" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInteractiveDataCurrent_da0f6faa-5787-4a3f-96c3-84621e1e8265" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityInteractiveDataCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_EntityInteractiveDataCurrent_da0f6faa-5787-4a3f-96c3-84621e1e8265" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFilerCategory_8f795bed-5951-48e9-b7c4-523857515f8e" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityFilerCategory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_EntityFilerCategory_8f795bed-5951-48e9-b7c4-523857515f8e" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntitySmallBusiness_44e0214e-909d-418b-b953-a86a1af8d276" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntitySmallBusiness"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_EntitySmallBusiness_44e0214e-909d-418b-b953-a86a1af8d276" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_bcb4414c-0cb7-4ed0-867a-8a18d15dea7a" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_EntityEmergingGrowthCompany_bcb4414c-0cb7-4ed0-867a-8a18d15dea7a" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityExTransitionPeriod_93172ebf-5f34-4b6b-aac2-ce7d015942b4" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityExTransitionPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_EntityExTransitionPeriod_93172ebf-5f34-4b6b-aac2-ce7d015942b4" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityShellCompany_c1348a3e-a40b-4a2d-b1e4-6ee72e84846b" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityShellCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_EntityShellCompany_c1348a3e-a40b-4a2d-b1e4-6ee72e84846b" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_8ca08545-6788-4f8a-b6ff-cb9e88023836" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityCommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_8ca08545-6788-4f8a-b6ff-cb9e88023836" xlink:type="arc" order="24"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_4403255e-f640-4a87-b936-9d87296cb36a" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityCentralIndexKey"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_EntityCentralIndexKey_4403255e-f640-4a87-b936-9d87296cb36a" xlink:type="arc" order="25"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalPeriodFocus_9a39ce07-f1de-4e62-ace1-495f9f99c2a5" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_DocumentFiscalPeriodFocus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_DocumentFiscalPeriodFocus_9a39ce07-f1de-4e62-ace1-495f9f99c2a5" xlink:type="arc" order="26"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalYearFocus_447ed73b-a76b-4755-9ac3-c9b89ce4c3cc" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_DocumentFiscalYearFocus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_DocumentFiscalYearFocus_447ed73b-a76b-4755-9ac3-c9b89ce4c3cc" xlink:type="arc" order="27"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_e1696042-f221-4edc-8dab-7db127129aba" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_AmendmentFlag"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_AmendmentFlag_e1696042-f221-4edc-8dab-7db127129aba" xlink:type="arc" order="28"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CurrentFiscalYearEndDate_a6d4b2c9-17a9-4d36-8457-a858ec251e0c" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_CurrentFiscalYearEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_CurrentFiscalYearEndDate_a6d4b2c9-17a9-4d36-8457-a858ec251e0c" xlink:type="arc" order="29"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationTable_45858d79-1676-46d1-9d4d-5927c3d8f7ef" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_DocumentInformationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_DocumentInformationLineItems_e6eee1a2-e67d-4704-afab-ec7a586fc841" xlink:to="loc_dei_DocumentInformationTable_45858d79-1676-46d1-9d4d-5927c3d8f7ef" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_d511ab52-cb37-433b-a484-e6ca9637fa6b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_DocumentInformationTable_45858d79-1676-46d1-9d4d-5927c3d8f7ef" xlink:to="loc_us-gaap_StatementClassOfStockAxis_d511ab52-cb37-433b-a484-e6ca9637fa6b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_d511ab52-cb37-433b-a484-e6ca9637fa6b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_d511ab52-cb37-433b-a484-e6ca9637fa6b" xlink:to="loc_us-gaap_ClassOfStockDomain_d511ab52-cb37-433b-a484-e6ca9637fa6b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_d146c7b3-3099-440e-b7fd-ca6ebd141aaa" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_d511ab52-cb37-433b-a484-e6ca9637fa6b" xlink:to="loc_us-gaap_ClassOfStockDomain_d146c7b3-3099-440e-b7fd-ca6ebd141aaa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_52e5f31f-a480-4447-ad79-f5af717c895c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_d146c7b3-3099-440e-b7fd-ca6ebd141aaa" xlink:to="loc_us-gaap_CommonClassAMember_52e5f31f-a480-4447-ad79-f5af717c895c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantMember_25cac6d2-5878-49f2-849d-3e4d943be208" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_d146c7b3-3099-440e-b7fd-ca6ebd141aaa" xlink:to="loc_us-gaap_WarrantMember_25cac6d2-5878-49f2-849d-3e4d943be208" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassBMember_0ee08682-32c8-47d5-9a75-8a4a8cbc549d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonClassBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_d146c7b3-3099-440e-b7fd-ca6ebd141aaa" xlink:to="loc_us-gaap_CommonClassBMember_0ee08682-32c8-47d5-9a75-8a4a8cbc549d" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="simple" xlink:href="soun-20230930.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETS"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_b575e850-9a21-435c-bb34-e78fb06e2a4a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract_aae4b7b4-33c5-48bf-81de-8925622fffba" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_b575e850-9a21-435c-bb34-e78fb06e2a4a" xlink:to="loc_us-gaap_AssetsAbstract_aae4b7b4-33c5-48bf-81de-8925622fffba" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrentAbstract_7f9dbb1e-2e60-40b8-9c92-fc3d6ed73947" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsCurrentAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_aae4b7b4-33c5-48bf-81de-8925622fffba" xlink:to="loc_us-gaap_AssetsCurrentAbstract_7f9dbb1e-2e60-40b8-9c92-fc3d6ed73947" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_9ca36dbe-092b-4456-8c96-f03fbf7fe517" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_7f9dbb1e-2e60-40b8-9c92-fc3d6ed73947" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_9ca36dbe-092b-4456-8c96-f03fbf7fe517" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNet_1f6d258c-76ab-4753-b926-e7b214132735" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsReceivableNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_7f9dbb1e-2e60-40b8-9c92-fc3d6ed73947" xlink:to="loc_us-gaap_AccountsReceivableNet_1f6d258c-76ab-4753-b926-e7b214132735" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseCurrent_0c697261-2864-4e37-a47d-c0347791dd2a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PrepaidExpenseCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_7f9dbb1e-2e60-40b8-9c92-fc3d6ed73947" xlink:to="loc_us-gaap_PrepaidExpenseCurrent_0c697261-2864-4e37-a47d-c0347791dd2a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetNetCurrent_6e706444-7841-4d55-8488-24cc985c6425" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ContractWithCustomerAssetNetCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_7f9dbb1e-2e60-40b8-9c92-fc3d6ed73947" xlink:to="loc_us-gaap_ContractWithCustomerAssetNetCurrent_6e706444-7841-4d55-8488-24cc985c6425" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_dd6fa01d-553f-4703-94bb-fabf3e108ac2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_7f9dbb1e-2e60-40b8-9c92-fc3d6ed73947" xlink:to="loc_us-gaap_OtherAssetsCurrent_dd6fa01d-553f-4703-94bb-fabf3e108ac2" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_ce45c66d-9c11-46d9-95e0-3a602a91add1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_7f9dbb1e-2e60-40b8-9c92-fc3d6ed73947" xlink:to="loc_us-gaap_AssetsCurrent_ce45c66d-9c11-46d9-95e0-3a602a91add1" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent_96aa1f9b-8ba7-498a-bbf5-50abdd41af4a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedCashAndCashEquivalentsNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_aae4b7b4-33c5-48bf-81de-8925622fffba" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent_96aa1f9b-8ba7-498a-bbf5-50abdd41af4a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_bb67be96-3527-475f-97f3-45c6d7ef3298" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_aae4b7b4-33c5-48bf-81de-8925622fffba" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_bb67be96-3527-475f-97f3-45c6d7ef3298" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_a49ced16-cfa9-4260-8d78-6c4480735321" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_aae4b7b4-33c5-48bf-81de-8925622fffba" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_a49ced16-cfa9-4260-8d78-6c4480735321" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_86bb5f8f-d2cd-44ed-8bb1-25cc1d2f7ac4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredIncomeTaxAssetsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_aae4b7b4-33c5-48bf-81de-8925622fffba" xlink:to="loc_us-gaap_DeferredIncomeTaxAssetsNet_86bb5f8f-d2cd-44ed-8bb1-25cc1d2f7ac4" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetNetNoncurrent_bcd46e2d-964b-4865-8127-071b6a1262d2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ContractWithCustomerAssetNetNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_aae4b7b4-33c5-48bf-81de-8925622fffba" xlink:to="loc_us-gaap_ContractWithCustomerAssetNetNoncurrent_bcd46e2d-964b-4865-8127-071b6a1262d2" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_b53ee1b2-b6fd-48e5-8d58-295606685795" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_aae4b7b4-33c5-48bf-81de-8925622fffba" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_b53ee1b2-b6fd-48e5-8d58-295606685795" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_c3ecaa5a-7d79-4c6c-bbda-916cbbeba0d0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Assets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_aae4b7b4-33c5-48bf-81de-8925622fffba" xlink:to="loc_us-gaap_Assets_c3ecaa5a-7d79-4c6c-bbda-916cbbeba0d0" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_c59b707c-46c2-4a48-8c81-814ba45bc4a5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_b575e850-9a21-435c-bb34-e78fb06e2a4a" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_c59b707c-46c2-4a48-8c81-814ba45bc4a5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract_32f3977e-4778-402a-bcad-af1d619ba155" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesCurrentAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_c59b707c-46c2-4a48-8c81-814ba45bc4a5" xlink:to="loc_us-gaap_LiabilitiesCurrentAbstract_32f3977e-4778-402a-bcad-af1d619ba155" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_43a1e150-7899-4ee4-bc23-832a7d436c80" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_32f3977e-4778-402a-bcad-af1d619ba155" xlink:to="loc_us-gaap_AccountsPayableCurrent_43a1e150-7899-4ee4-bc23-832a7d436c80" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_dd5a9797-d461-411a-a378-e32c0f648133" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_32f3977e-4778-402a-bcad-af1d619ba155" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_dd5a9797-d461-411a-a378-e32c0f648133" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_0c978b15-bfc3-42cf-a027-8f234ef52fa2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_32f3977e-4778-402a-bcad-af1d619ba155" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_0c978b15-bfc3-42cf-a027-8f234ef52fa2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityCurrent_8183984f-8e0f-42ef-8f3d-e6a759e06651" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FinanceLeaseLiabilityCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_32f3977e-4778-402a-bcad-af1d619ba155" xlink:to="loc_us-gaap_FinanceLeaseLiabilityCurrent_8183984f-8e0f-42ef-8f3d-e6a759e06651" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxesPayableCurrent_c9b861d1-6465-461c-9144-f33f3ea884ce" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TaxesPayableCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_32f3977e-4778-402a-bcad-af1d619ba155" xlink:to="loc_us-gaap_TaxesPayableCurrent_c9b861d1-6465-461c-9144-f33f3ea884ce" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_579d1491-e8e4-4237-ac94-93ce38e3c439" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_32f3977e-4778-402a-bcad-af1d619ba155" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_579d1491-e8e4-4237-ac94-93ce38e3c439" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_64361bdb-3056-4135-b8b6-e3780f8c37dd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_32f3977e-4778-402a-bcad-af1d619ba155" xlink:to="loc_us-gaap_LongTermDebtCurrent_64361bdb-3056-4135-b8b6-e3780f8c37dd" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_19cd25a1-c850-48f3-9a57-8e82dcd5de1b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_32f3977e-4778-402a-bcad-af1d619ba155" xlink:to="loc_us-gaap_LiabilitiesCurrent_19cd25a1-c850-48f3-9a57-8e82dcd5de1b" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_83c63c9b-e580-4899-aef0-a87dd8da8dc1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_c59b707c-46c2-4a48-8c81-814ba45bc4a5" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_83c63c9b-e580-4899-aef0-a87dd8da8dc1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_71d49356-31d9-4650-b60f-81248ea9ad20" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FinanceLeaseLiabilityNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_c59b707c-46c2-4a48-8c81-814ba45bc4a5" xlink:to="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_71d49356-31d9-4650-b60f-81248ea9ad20" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityNoncurrent_fdc9cc81-27bc-4ed3-bca4-d653d82a1d98" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ContractWithCustomerLiabilityNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_c59b707c-46c2-4a48-8c81-814ba45bc4a5" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityNoncurrent_fdc9cc81-27bc-4ed3-bca4-d653d82a1d98" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_d417bbbb-7e82-4cfe-b299-f32b0bd70697" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_c59b707c-46c2-4a48-8c81-814ba45bc4a5" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_d417bbbb-7e82-4cfe-b299-f32b0bd70697" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_dc7886d0-7500-4edd-be1f-1a3b1deca489" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_c59b707c-46c2-4a48-8c81-814ba45bc4a5" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_dc7886d0-7500-4edd-be1f-1a3b1deca489" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_6e880dc7-d848-4d93-88b2-8ba11fb5f919" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Liabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_c59b707c-46c2-4a48-8c81-814ba45bc4a5" xlink:to="loc_us-gaap_Liabilities_6e880dc7-d848-4d93-88b2-8ba11fb5f919" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_c468b54a-388c-4da6-842e-b9f552af3998" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_c59b707c-46c2-4a48-8c81-814ba45bc4a5" xlink:to="loc_us-gaap_CommitmentsAndContingencies_c468b54a-388c-4da6-842e-b9f552af3998" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_252fcd9a-7f86-4650-9490-6b6b4e12c2d5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_c59b707c-46c2-4a48-8c81-814ba45bc4a5" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_252fcd9a-7f86-4650-9490-6b6b4e12c2d5" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_90c1599c-8f73-4bb8-89c2-f2e9094586f1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_252fcd9a-7f86-4650-9490-6b6b4e12c2d5" xlink:to="loc_us-gaap_PreferredStockValue_90c1599c-8f73-4bb8-89c2-f2e9094586f1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_f1dc9e67-1c1b-47b4-a943-d9dac6e20350" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_252fcd9a-7f86-4650-9490-6b6b4e12c2d5" xlink:to="loc_us-gaap_CommonStockValue_f1dc9e67-1c1b-47b4-a943-d9dac6e20350" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_2887259c-4681-4eb7-a0aa-023cc018f304" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdditionalPaidInCapital"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_252fcd9a-7f86-4650-9490-6b6b4e12c2d5" xlink:to="loc_us-gaap_AdditionalPaidInCapital_2887259c-4681-4eb7-a0aa-023cc018f304" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_08ee6b6f-0dc6-475d-af47-0f7a1cd23fb5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_252fcd9a-7f86-4650-9490-6b6b4e12c2d5" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_08ee6b6f-0dc6-475d-af47-0f7a1cd23fb5" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_ca19f68a-6752-4105-a819-b78d7ae1ccda" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_252fcd9a-7f86-4650-9490-6b6b4e12c2d5" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_ca19f68a-6752-4105-a819-b78d7ae1ccda" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_dcc6c4f4-4912-4e5a-847f-17e777775f63" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_252fcd9a-7f86-4650-9490-6b6b4e12c2d5" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_dcc6c4f4-4912-4e5a-847f-17e777775f63" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_bd096d2a-9a5f-44cb-a1ca-80db11037eef" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_c59b707c-46c2-4a48-8c81-814ba45bc4a5" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_bd096d2a-9a5f-44cb-a1ca-80db11037eef" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_75e22c5e-7db5-40ab-8dd5-e9505be1e928" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_b575e850-9a21-435c-bb34-e78fb06e2a4a" xlink:to="loc_us-gaap_StatementTable_75e22c5e-7db5-40ab-8dd5-e9505be1e928" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_55755616-f2b9-4b38-9f23-5e358847c4f6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_75e22c5e-7db5-40ab-8dd5-e9505be1e928" xlink:to="loc_us-gaap_StatementClassOfStockAxis_55755616-f2b9-4b38-9f23-5e358847c4f6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_55755616-f2b9-4b38-9f23-5e358847c4f6_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_55755616-f2b9-4b38-9f23-5e358847c4f6" xlink:to="loc_us-gaap_ClassOfStockDomain_55755616-f2b9-4b38-9f23-5e358847c4f6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_bd5de0b2-a288-4e2a-8f5c-c73f26d3993c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_55755616-f2b9-4b38-9f23-5e358847c4f6" xlink:to="loc_us-gaap_ClassOfStockDomain_bd5de0b2-a288-4e2a-8f5c-c73f26d3993c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_a3c5115c-79d3-42a1-b01e-91f962a9d990" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_bd5de0b2-a288-4e2a-8f5c-c73f26d3993c" xlink:to="loc_us-gaap_CommonClassAMember_a3c5115c-79d3-42a1-b01e-91f962a9d990" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassBMember_2087eb0a-a31d-47df-b14e-46a0de2322f8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonClassBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_bd5de0b2-a288-4e2a-8f5c-c73f26d3993c" xlink:to="loc_us-gaap_CommonClassBMember_2087eb0a-a31d-47df-b14e-46a0de2322f8" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSParentheticals" xlink:type="simple" xlink:href="soun-20230930.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETSParentheticals"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSParentheticals" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_f8fd78da-06db-45ee-9e88-d5a415ebe430" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_66ca625f-a66d-42cf-b852-6942f474bdbc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f8fd78da-06db-45ee-9e88-d5a415ebe430" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_66ca625f-a66d-42cf-b852-6942f474bdbc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_3edca280-7408-4d60-b959-10489e750cf8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f8fd78da-06db-45ee-9e88-d5a415ebe430" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_3edca280-7408-4d60-b959-10489e750cf8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesIssued_649c754b-8148-4b94-b0be-eda2b06bc90b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockSharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f8fd78da-06db-45ee-9e88-d5a415ebe430" xlink:to="loc_us-gaap_PreferredStockSharesIssued_649c754b-8148-4b94-b0be-eda2b06bc90b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding_fc946630-06c5-481b-8e8f-0c8a94b89cdc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f8fd78da-06db-45ee-9e88-d5a415ebe430" xlink:to="loc_us-gaap_PreferredStockSharesOutstanding_fc946630-06c5-481b-8e8f-0c8a94b89cdc" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockLiquidationPreferenceValue_5bf97040-02cf-46d8-8481-4b0d80b84013" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockLiquidationPreferenceValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f8fd78da-06db-45ee-9e88-d5a415ebe430" xlink:to="loc_us-gaap_PreferredStockLiquidationPreferenceValue_5bf97040-02cf-46d8-8481-4b0d80b84013" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_26b29258-e649-40dd-9d65-828e1534ab9f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f8fd78da-06db-45ee-9e88-d5a415ebe430" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_26b29258-e649-40dd-9d65-828e1534ab9f" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_fad68ef0-2d59-4ee0-a773-b9aeb9a3a77a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f8fd78da-06db-45ee-9e88-d5a415ebe430" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_fad68ef0-2d59-4ee0-a773-b9aeb9a3a77a" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesIssued_b70f026e-e73d-49f6-825f-cb725c96997b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f8fd78da-06db-45ee-9e88-d5a415ebe430" xlink:to="loc_us-gaap_CommonStockSharesIssued_b70f026e-e73d-49f6-825f-cb725c96997b" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_072d08e8-be7c-4e91-aade-6b5cdd36d625" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f8fd78da-06db-45ee-9e88-d5a415ebe430" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_072d08e8-be7c-4e91-aade-6b5cdd36d625" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_fca3e220-b51e-4086-ae0b-fd4384b0b711" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_f8fd78da-06db-45ee-9e88-d5a415ebe430" xlink:to="loc_us-gaap_StatementTable_fca3e220-b51e-4086-ae0b-fd4384b0b711" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_2a84fea4-d85a-48b2-aee7-4ed938d11e13" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_fca3e220-b51e-4086-ae0b-fd4384b0b711" xlink:to="loc_us-gaap_StatementClassOfStockAxis_2a84fea4-d85a-48b2-aee7-4ed938d11e13" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_2a84fea4-d85a-48b2-aee7-4ed938d11e13_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_2a84fea4-d85a-48b2-aee7-4ed938d11e13" xlink:to="loc_us-gaap_ClassOfStockDomain_2a84fea4-d85a-48b2-aee7-4ed938d11e13_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_768ef35c-1866-48e3-9414-2aa928956310" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_2a84fea4-d85a-48b2-aee7-4ed938d11e13" xlink:to="loc_us-gaap_ClassOfStockDomain_768ef35c-1866-48e3-9414-2aa928956310" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_f594342d-076a-4f78-9b4c-8592e209c8d4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_768ef35c-1866-48e3-9414-2aa928956310" xlink:to="loc_us-gaap_CommonClassAMember_f594342d-076a-4f78-9b4c-8592e209c8d4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassBMember_66443935-c5f0-48fe-861e-daf6b33c5cd9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonClassBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_768ef35c-1866-48e3-9414-2aa928956310" xlink:to="loc_us-gaap_CommonClassBMember_66443935-c5f0-48fe-861e-daf6b33c5cd9" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFREDEEMABLECONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" xlink:type="simple" xlink:href="soun-20230930.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFREDEEMABLECONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFREDEEMABLECONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_37c2cabf-f6fb-401b-977a-9d3141475a1c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_52a9f864-b7f9-4a0d-ba26-1a385d1e3892" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInTemporaryEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_37c2cabf-f6fb-401b-977a-9d3141475a1c" xlink:to="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_52a9f864-b7f9-4a0d-ba26-1a385d1e3892" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquitySharesOutstanding_cd187880-d10a-46e3-9051-2468600df59c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TemporaryEquitySharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_52a9f864-b7f9-4a0d-ba26-1a385d1e3892" xlink:to="loc_us-gaap_TemporaryEquitySharesOutstanding_cd187880-d10a-46e3-9051-2468600df59c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityCarryingAmountAttributableToParent_94a85560-0c98-41b4-b0b7-c70629e3c78d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TemporaryEquityCarryingAmountAttributableToParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_52a9f864-b7f9-4a0d-ba26-1a385d1e3892" xlink:to="loc_us-gaap_TemporaryEquityCarryingAmountAttributableToParent_94a85560-0c98-41b4-b0b7-c70629e3c78d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_TemporaryEquityEffectsOfRecapitalization_33a7aaf4-c217-4fec-9042-a4da52ae96cd" xlink:href="soun-20230930.xsd#soun_TemporaryEquityEffectsOfRecapitalization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_52a9f864-b7f9-4a0d-ba26-1a385d1e3892" xlink:to="loc_soun_TemporaryEquityEffectsOfRecapitalization_33a7aaf4-c217-4fec-9042-a4da52ae96cd" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquitySharesOutstanding_5c25d5c6-504d-4d50-b121-016bbf2351c8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TemporaryEquitySharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityCarryingAmountAttributableToParent_a2a06cfe-fadc-4370-9724-ac421ccb8df7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TemporaryEquityCarryingAmountAttributableToParent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_5163f1cb-f4d0-4139-a715-ea89b661c8fc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_37c2cabf-f6fb-401b-977a-9d3141475a1c" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_5163f1cb-f4d0-4139-a715-ea89b661c8fc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding_5d1c3125-e06e-4dea-89dd-9e58de7f4c19" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_5163f1cb-f4d0-4139-a715-ea89b661c8fc" xlink:to="loc_us-gaap_PreferredStockSharesOutstanding_5d1c3125-e06e-4dea-89dd-9e58de7f4c19" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_efc7c0ed-a710-4f9a-ae58-dc77191ea567" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_5163f1cb-f4d0-4139-a715-ea89b661c8fc" xlink:to="loc_us-gaap_StockholdersEquity_efc7c0ed-a710-4f9a-ae58-dc77191ea567" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_28340869-9e65-4b14-947c-ddc6f3f0f653" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_5163f1cb-f4d0-4139-a715-ea89b661c8fc" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_28340869-9e65-4b14-947c-ddc6f3f0f653" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_760c3a96-d8e3-4d8a-b3ed-890c3d2d1047" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_5163f1cb-f4d0-4139-a715-ea89b661c8fc" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_760c3a96-d8e3-4d8a-b3ed-890c3d2d1047" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_a33f6009-c63f-412c-8c5a-5240e06b6f73" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_5163f1cb-f4d0-4139-a715-ea89b661c8fc" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_a33f6009-c63f-412c-8c5a-5240e06b6f73" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_f3aa365f-2f91-418b-b7f0-227cc58e4b8a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_5163f1cb-f4d0-4139-a715-ea89b661c8fc" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_f3aa365f-2f91-418b-b7f0-227cc58e4b8a" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_4c3db70c-32e9-4896-a1d0-9530100a6d2c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_5163f1cb-f4d0-4139-a715-ea89b661c8fc" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_4c3db70c-32e9-4896-a1d0-9530100a6d2c" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCostsShares_cebe8d0a-5940-4a57-bbe9-6dce53cb919a" xlink:href="soun-20230930.xsd#soun_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCostsShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_5163f1cb-f4d0-4139-a715-ea89b661c8fc" xlink:to="loc_soun_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCostsShares_cebe8d0a-5940-4a57-bbe9-6dce53cb919a" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts_30cb3e60-12a4-41f9-8181-035d75f6218c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_5163f1cb-f4d0-4139-a715-ea89b661c8fc" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts_30cb3e60-12a4-41f9-8181-035d75f6218c" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_ae7f13cb-9e0d-44d3-abe3-66066c028a31" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_5163f1cb-f4d0-4139-a715-ea89b661c8fc" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_ae7f13cb-9e0d-44d3-abe3-66066c028a31" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities_f1ee94e9-f2ce-46e7-840d-53a19e208498" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_5163f1cb-f4d0-4139-a715-ea89b661c8fc" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities_f1ee94e9-f2ce-46e7-840d-53a19e208498" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued_b2861264-94db-4caa-adcb-ed2f833f1906" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_5163f1cb-f4d0-4139-a715-ea89b661c8fc" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued_b2861264-94db-4caa-adcb-ed2f833f1906" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_StockIssuedDuringPeriodSharesNetExerciseOfOutstandingWarrantsShares_7795cba2-7a0e-4c80-b65b-e89f03d7809a" xlink:href="soun-20230930.xsd#soun_StockIssuedDuringPeriodSharesNetExerciseOfOutstandingWarrantsShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_5163f1cb-f4d0-4139-a715-ea89b661c8fc" xlink:to="loc_soun_StockIssuedDuringPeriodSharesNetExerciseOfOutstandingWarrantsShares_7795cba2-7a0e-4c80-b65b-e89f03d7809a" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits_3a3de7cd-e0ba-4f0c-8597-c756e2e0f479" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_5163f1cb-f4d0-4139-a715-ea89b661c8fc" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits_3a3de7cd-e0ba-4f0c-8597-c756e2e0f479" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfUnits_11ee65b5-1b52-4b10-9ecb-d057cff13e86" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodValueConversionOfUnits"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_5163f1cb-f4d0-4139-a715-ea89b661c8fc" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfUnits_11ee65b5-1b52-4b10-9ecb-d057cff13e86" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_EffectOfReverseRecapitalizationNetOfCostsShares_69038266-8468-4129-995e-2b20a34a9376" xlink:href="soun-20230930.xsd#soun_EffectOfReverseRecapitalizationNetOfCostsShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_5163f1cb-f4d0-4139-a715-ea89b661c8fc" xlink:to="loc_soun_EffectOfReverseRecapitalizationNetOfCostsShares_69038266-8468-4129-995e-2b20a34a9376" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_EffectOfReverseRecapitalizationNetOfCosts_9cd65182-356a-4f38-928c-e1bfd84d0acb" xlink:href="soun-20230930.xsd#soun_EffectOfReverseRecapitalizationNetOfCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_5163f1cb-f4d0-4139-a715-ea89b661c8fc" xlink:to="loc_soun_EffectOfReverseRecapitalizationNetOfCosts_9cd65182-356a-4f38-928c-e1bfd84d0acb" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_StockIssuedDuringPeriodSharesReverseRecapitalization_b3d26795-b28c-4f3c-b5b3-39dfa15e921f" xlink:href="soun-20230930.xsd#soun_StockIssuedDuringPeriodSharesReverseRecapitalization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_5163f1cb-f4d0-4139-a715-ea89b661c8fc" xlink:to="loc_soun_StockIssuedDuringPeriodSharesReverseRecapitalization_b3d26795-b28c-4f3c-b5b3-39dfa15e921f" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_StockIssuedDuringPeriodValueReverseRecapitalization_afee5487-67be-44a2-87a1-e003139ea7a6" xlink:href="soun-20230930.xsd#soun_StockIssuedDuringPeriodValueReverseRecapitalization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_5163f1cb-f4d0-4139-a715-ea89b661c8fc" xlink:to="loc_soun_StockIssuedDuringPeriodValueReverseRecapitalization_afee5487-67be-44a2-87a1-e003139ea7a6" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesAcquisitions_20a97958-006d-40f1-af1d-3cea9913ae05" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesAcquisitions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_5163f1cb-f4d0-4139-a715-ea89b661c8fc" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesAcquisitions_20a97958-006d-40f1-af1d-3cea9913ae05" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueAcquisitions_c13a1c3a-6af1-4433-819f-5f330153a2c2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodValueAcquisitions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_5163f1cb-f4d0-4139-a715-ea89b661c8fc" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueAcquisitions_c13a1c3a-6af1-4433-819f-5f330153a2c2" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_f5a800ee-ed80-48cf-821e-245ff15b999d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_5163f1cb-f4d0-4139-a715-ea89b661c8fc" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_f5a800ee-ed80-48cf-821e-245ff15b999d" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_58f6de36-f61d-45a4-91cf-c8a4f575a30b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_5163f1cb-f4d0-4139-a715-ea89b661c8fc" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_58f6de36-f61d-45a4-91cf-c8a4f575a30b" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_a940b6a5-8ac6-42e1-9d52-250ba3d0a863" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_5163f1cb-f4d0-4139-a715-ea89b661c8fc" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_a940b6a5-8ac6-42e1-9d52-250ba3d0a863" xlink:type="arc" order="24"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_83787392-dfde-4460-a8f3-33d07c62a421" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_5163f1cb-f4d0-4139-a715-ea89b661c8fc" xlink:to="loc_us-gaap_NetIncomeLoss_83787392-dfde-4460-a8f3-33d07c62a421" xlink:type="arc" order="25"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_4ea61e6e-8afd-470b-b25a-968ecd707411" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_5163f1cb-f4d0-4139-a715-ea89b661c8fc" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_4ea61e6e-8afd-470b-b25a-968ecd707411" xlink:type="arc" order="26"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding_14a60485-a07a-4fe0-b7ae-1703bee2075e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_dcb4d4ae-a631-4ebf-aa8d-ee2e32eb5b3e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_e41787a9-5440-46f7-b223-ae86ce42dc90" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_8d5a1682-5e45-4a3a-9329-97c90940dd5f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_37c2cabf-f6fb-401b-977a-9d3141475a1c" xlink:to="loc_us-gaap_StatementTable_8d5a1682-5e45-4a3a-9329-97c90940dd5f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_1566c110-12ad-40be-a5e5-ba32ad196683" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_8d5a1682-5e45-4a3a-9329-97c90940dd5f" xlink:to="loc_us-gaap_StatementClassOfStockAxis_1566c110-12ad-40be-a5e5-ba32ad196683" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_1566c110-12ad-40be-a5e5-ba32ad196683_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_1566c110-12ad-40be-a5e5-ba32ad196683" xlink:to="loc_us-gaap_ClassOfStockDomain_1566c110-12ad-40be-a5e5-ba32ad196683_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_379cf8d3-6cc0-43ad-bf24-5de092d69476" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_1566c110-12ad-40be-a5e5-ba32ad196683" xlink:to="loc_us-gaap_ClassOfStockDomain_379cf8d3-6cc0-43ad-bf24-5de092d69476" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_3ef6abdd-ef32-40eb-a0f5-13b94518e8a5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_379cf8d3-6cc0-43ad-bf24-5de092d69476" xlink:to="loc_us-gaap_CommonClassAMember_3ef6abdd-ef32-40eb-a0f5-13b94518e8a5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassBMember_0d80fbcc-7ab5-45a3-ad62-d99cf202d234" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonClassBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_379cf8d3-6cc0-43ad-bf24-5de092d69476" xlink:to="loc_us-gaap_CommonClassBMember_0d80fbcc-7ab5-45a3-ad62-d99cf202d234" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_d1d19d03-f182-4f2c-a025-cc92f31bbdbf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_8d5a1682-5e45-4a3a-9329-97c90940dd5f" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_d1d19d03-f182-4f2c-a025-cc92f31bbdbf" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_d1d19d03-f182-4f2c-a025-cc92f31bbdbf_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_d1d19d03-f182-4f2c-a025-cc92f31bbdbf" xlink:to="loc_us-gaap_EquityComponentDomain_d1d19d03-f182-4f2c-a025-cc92f31bbdbf_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_a18fe30a-dcac-4107-b078-7288c7d29c1d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_d1d19d03-f182-4f2c-a025-cc92f31bbdbf" xlink:to="loc_us-gaap_EquityComponentDomain_a18fe30a-dcac-4107-b078-7288c7d29c1d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockMember_442bae29-7b3e-4267-aefb-bbed39878b1f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_a18fe30a-dcac-4107-b078-7288c7d29c1d" xlink:to="loc_us-gaap_PreferredStockMember_442bae29-7b3e-4267-aefb-bbed39878b1f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_c16864d9-2e7c-4fb2-9a73-9c105a780bb4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_a18fe30a-dcac-4107-b078-7288c7d29c1d" xlink:to="loc_us-gaap_CommonStockMember_c16864d9-2e7c-4fb2-9a73-9c105a780bb4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_a447c2d8-2f0b-4c35-81b6-48a771b8b0cf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_a18fe30a-dcac-4107-b078-7288c7d29c1d" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_a447c2d8-2f0b-4c35-81b6-48a771b8b0cf" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_978d9837-e80d-4d02-9d9a-42ee32b32b0d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RetainedEarningsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_a18fe30a-dcac-4107-b078-7288c7d29c1d" xlink:to="loc_us-gaap_RetainedEarningsMember_978d9837-e80d-4d02-9d9a-42ee32b32b0d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_7ba31c59-79bd-4300-86f1-4aaa1b81614f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_a18fe30a-dcac-4107-b078-7288c7d29c1d" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_7ba31c59-79bd-4300-86f1-4aaa1b81614f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementAxis_96b73ec7-e685-4637-8b17-4e6ca53cd949" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RestatementAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_8d5a1682-5e45-4a3a-9329-97c90940dd5f" xlink:to="loc_srt_RestatementAxis_96b73ec7-e685-4637-8b17-4e6ca53cd949" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementDomain_96b73ec7-e685-4637-8b17-4e6ca53cd949_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RestatementDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RestatementAxis_96b73ec7-e685-4637-8b17-4e6ca53cd949" xlink:to="loc_srt_RestatementDomain_96b73ec7-e685-4637-8b17-4e6ca53cd949_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementDomain_3b0f8783-af83-4ae3-ae6d-755d56a36a17" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RestatementDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RestatementAxis_96b73ec7-e685-4637-8b17-4e6ca53cd949" xlink:to="loc_srt_RestatementDomain_3b0f8783-af83-4ae3-ae6d-755d56a36a17" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioPreviouslyReportedMember_c1365c30-47dc-426e-983b-99556a2b7d09" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ScenarioPreviouslyReportedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RestatementDomain_3b0f8783-af83-4ae3-ae6d-755d56a36a17" xlink:to="loc_srt_ScenarioPreviouslyReportedMember_c1365c30-47dc-426e-983b-99556a2b7d09" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementAdjustmentMember_7bd3633b-4cf4-434b-9298-403894298c08" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RestatementAdjustmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RestatementDomain_3b0f8783-af83-4ae3-ae6d-755d56a36a17" xlink:to="loc_srt_RestatementAdjustmentMember_7bd3633b-4cf4-434b-9298-403894298c08" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_dc6cd7ca-6236-4d52-aac4-43906c1bf6a9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_8d5a1682-5e45-4a3a-9329-97c90940dd5f" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_dc6cd7ca-6236-4d52-aac4-43906c1bf6a9" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_dc6cd7ca-6236-4d52-aac4-43906c1bf6a9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_dc6cd7ca-6236-4d52-aac4-43906c1bf6a9" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_dc6cd7ca-6236-4d52-aac4-43906c1bf6a9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_6a32722d-2697-4069-88f1-dec27b766e34" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_dc6cd7ca-6236-4d52-aac4-43906c1bf6a9" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_6a32722d-2697-4069-88f1-dec27b766e34" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_EquityLineOfCreditProgramMember_2dd4a361-54ad-40ae-ab1a-b980cbcd307e" xlink:href="soun-20230930.xsd#soun_EquityLineOfCreditProgramMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_6a32722d-2697-4069-88f1-dec27b766e34" xlink:to="loc_soun_EquityLineOfCreditProgramMember_2dd4a361-54ad-40ae-ab1a-b980cbcd307e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConversionOfStockByUniqueDescriptionAxis_02883794-7ac0-4be3-b94f-6f037650132a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConversionOfStockByUniqueDescriptionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_8d5a1682-5e45-4a3a-9329-97c90940dd5f" xlink:to="loc_us-gaap_ConversionOfStockByUniqueDescriptionAxis_02883794-7ac0-4be3-b94f-6f037650132a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConversionOfStockNameDomain_02883794-7ac0-4be3-b94f-6f037650132a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConversionOfStockNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConversionOfStockByUniqueDescriptionAxis_02883794-7ac0-4be3-b94f-6f037650132a" xlink:to="loc_us-gaap_ConversionOfStockNameDomain_02883794-7ac0-4be3-b94f-6f037650132a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConversionOfStockNameDomain_5183d389-041e-4e85-bc92-f314a1429ddc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConversionOfStockNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConversionOfStockByUniqueDescriptionAxis_02883794-7ac0-4be3-b94f-6f037650132a" xlink:to="loc_us-gaap_ConversionOfStockNameDomain_5183d389-041e-4e85-bc92-f314a1429ddc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_ConversionOfClassBCommonStockMember_bd0a60f8-fe55-4c8a-bb9d-badda5e1a229" xlink:href="soun-20230930.xsd#soun_ConversionOfClassBCommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConversionOfStockNameDomain_5183d389-041e-4e85-bc92-f314a1429ddc" xlink:to="loc_soun_ConversionOfClassBCommonStockMember_bd0a60f8-fe55-4c8a-bb9d-badda5e1a229" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_ConversionOfConvertiblePreferredStockMember_f85d23cd-16b7-41fa-957f-f9bea2a785f4" xlink:href="soun-20230930.xsd#soun_ConversionOfConvertiblePreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConversionOfStockNameDomain_5183d389-041e-4e85-bc92-f314a1429ddc" xlink:to="loc_soun_ConversionOfConvertiblePreferredStockMember_f85d23cd-16b7-41fa-957f-f9bea2a785f4" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="simple" xlink:href="soun-20230930.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_d9fea694-7702-4ad6-93a0-c1b78757f91b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfDebtDiscountPremium_e99b1c4a-3d4f-4a1c-86c6-c5f8dffbcfab" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AmortizationOfDebtDiscountPremium"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_d9fea694-7702-4ad6-93a0-c1b78757f91b" xlink:to="loc_us-gaap_AmortizationOfDebtDiscountPremium_e99b1c4a-3d4f-4a1c-86c6-c5f8dffbcfab" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConversionOfStockAmountConverted1_5363f67a-8e1b-48b2-903f-1a4116bf18b5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConversionOfStockAmountConverted1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_d9fea694-7702-4ad6-93a0-c1b78757f91b" xlink:to="loc_us-gaap_ConversionOfStockAmountConverted1_5363f67a-8e1b-48b2-903f-1a4116bf18b5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssued1_6d49f5e5-f1e3-4005-9291-e0be0e1d9f4f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssued1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_d9fea694-7702-4ad6-93a0-c1b78757f91b" xlink:to="loc_us-gaap_StockIssued1_6d49f5e5-f1e3-4005-9291-e0be0e1d9f4f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtConversionConvertedInstrumentAmount1_1f1cbc14-1ded-4b55-9aea-28d6536b93d4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtConversionConvertedInstrumentAmount1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_d9fea694-7702-4ad6-93a0-c1b78757f91b" xlink:to="loc_us-gaap_DebtConversionConvertedInstrumentAmount1_1f1cbc14-1ded-4b55-9aea-28d6536b93d4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConversionOfStockAmountConverted1_ce13c102-6fb0-45a8-8dc1-9fe5bdf15182" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConversionOfStockAmountConverted1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_5c9ec934-d0d6-4791-8159-81804c4d86a6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_d9fea694-7702-4ad6-93a0-c1b78757f91b" xlink:to="loc_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_5c9ec934-d0d6-4791-8159-81804c4d86a6" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_61b53fdc-b0af-462f-ab36-3b471e6d00f0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_d9fea694-7702-4ad6-93a0-c1b78757f91b" xlink:to="loc_us-gaap_StatementTable_61b53fdc-b0af-462f-ab36-3b471e6d00f0" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_c62da5be-af21-48f9-a83f-3b9dc1c43366" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_61b53fdc-b0af-462f-ab36-3b471e6d00f0" xlink:to="loc_us-gaap_StatementClassOfStockAxis_c62da5be-af21-48f9-a83f-3b9dc1c43366" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_c62da5be-af21-48f9-a83f-3b9dc1c43366_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_c62da5be-af21-48f9-a83f-3b9dc1c43366" xlink:to="loc_us-gaap_ClassOfStockDomain_c62da5be-af21-48f9-a83f-3b9dc1c43366_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_63df2e4c-5628-4e12-80b5-b527a10a3840" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_c62da5be-af21-48f9-a83f-3b9dc1c43366" xlink:to="loc_us-gaap_ClassOfStockDomain_63df2e4c-5628-4e12-80b5-b527a10a3840" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeriesAPreferredStockMember_ffce3dee-60f0-4ca9-986d-bd5635c41f8b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SeriesAPreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_63df2e4c-5628-4e12-80b5-b527a10a3840" xlink:to="loc_us-gaap_SeriesAPreferredStockMember_ffce3dee-60f0-4ca9-986d-bd5635c41f8b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RedeemableConvertiblePreferredStockMember_58c2b894-9457-4b60-a0af-270feddced63" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RedeemableConvertiblePreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_63df2e4c-5628-4e12-80b5-b527a10a3840" xlink:to="loc_us-gaap_RedeemableConvertiblePreferredStockMember_58c2b894-9457-4b60-a0af-270feddced63" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/ORGANIZATIONDetails" xlink:type="simple" xlink:href="soun-20230930.xsd#ORGANIZATIONDetails"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/ORGANIZATIONDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_soun_OrganizationDetailsLineItems_17377e6b-1f17-4691-ae2c-d512b2261824" xlink:href="soun-20230930.xsd#soun_OrganizationDetailsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_3ae03d06-f246-4713-947f-fc80e1ec83a6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_soun_OrganizationDetailsLineItems_17377e6b-1f17-4691-ae2c-d512b2261824" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_3ae03d06-f246-4713-947f-fc80e1ec83a6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_NumberOfBoardMembers_3ea268d1-7e44-44f0-8d59-06ae6f02a2d1" xlink:href="soun-20230930.xsd#soun_NumberOfBoardMembers"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_soun_OrganizationDetailsLineItems_17377e6b-1f17-4691-ae2c-d512b2261824" xlink:to="loc_soun_NumberOfBoardMembers_3ea268d1-7e44-44f0-8d59-06ae6f02a2d1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_41b5576d-52ec-4340-be69-71e997d3cde5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_soun_OrganizationDetailsLineItems_17377e6b-1f17-4691-ae2c-d512b2261824" xlink:to="loc_us-gaap_NetIncomeLoss_41b5576d-52ec-4340-be69-71e997d3cde5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_42bbf274-e5db-473c-849a-57b7ab5dd5e6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_soun_OrganizationDetailsLineItems_17377e6b-1f17-4691-ae2c-d512b2261824" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_42bbf274-e5db-473c-849a-57b7ab5dd5e6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_7a7e3fda-fb77-4e73-9fbb-6f95df1a85c6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_soun_OrganizationDetailsLineItems_17377e6b-1f17-4691-ae2c-d512b2261824" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_7a7e3fda-fb77-4e73-9fbb-6f95df1a85c6" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_OrganizationDetailsTable_d17957a4-8609-443c-8576-a30611a4bdc5" xlink:href="soun-20230930.xsd#soun_OrganizationDetailsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_soun_OrganizationDetailsLineItems_17377e6b-1f17-4691-ae2c-d512b2261824" xlink:to="loc_soun_OrganizationDetailsTable_d17957a4-8609-443c-8576-a30611a4bdc5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_1c339603-f1dd-4a3c-9557-bf4e04ecb1fe" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_soun_OrganizationDetailsTable_d17957a4-8609-443c-8576-a30611a4bdc5" xlink:to="loc_us-gaap_StatementClassOfStockAxis_1c339603-f1dd-4a3c-9557-bf4e04ecb1fe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_1c339603-f1dd-4a3c-9557-bf4e04ecb1fe_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_1c339603-f1dd-4a3c-9557-bf4e04ecb1fe" xlink:to="loc_us-gaap_ClassOfStockDomain_1c339603-f1dd-4a3c-9557-bf4e04ecb1fe_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_18e624e0-ed25-4917-a86f-506cf6de79de" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_1c339603-f1dd-4a3c-9557-bf4e04ecb1fe" xlink:to="loc_us-gaap_ClassOfStockDomain_18e624e0-ed25-4917-a86f-506cf6de79de" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_39284370-e968-47bc-84fa-2fc9979bf71d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_18e624e0-ed25-4917-a86f-506cf6de79de" xlink:to="loc_us-gaap_CommonClassAMember_39284370-e968-47bc-84fa-2fc9979bf71d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassBMember_5d8e7887-231e-4425-b55a-86278eac9df3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonClassBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_18e624e0-ed25-4917-a86f-506cf6de79de" xlink:to="loc_us-gaap_CommonClassBMember_5d8e7887-231e-4425-b55a-86278eac9df3" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/BASISOFPRESENTATIONANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESNarrativesDetails" xlink:type="simple" xlink:href="soun-20230930.xsd#BASISOFPRESENTATIONANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESNarrativesDetails"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/BASISOFPRESENTATIONANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESNarrativesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_b60d21fb-dbf0-4fdd-9ec4-4f3e7722b980" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyCashFlowHedgeGainLossReclassifiedToEarningsNet_b82a5a9f-7ee7-485b-95ff-727f0e8205a7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ForeignCurrencyCashFlowHedgeGainLossReclassifiedToEarningsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_b60d21fb-dbf0-4fdd-9ec4-4f3e7722b980" xlink:to="loc_us-gaap_ForeignCurrencyCashFlowHedgeGainLossReclassifiedToEarningsNet_b82a5a9f-7ee7-485b-95ff-727f0e8205a7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_6e494bfd-9651-446b-a539-b54e3d0da5fe" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_b60d21fb-dbf0-4fdd-9ec4-4f3e7722b980" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_6e494bfd-9651-446b-a539-b54e3d0da5fe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense_f47e1b6e-b324-4f46-b671-0335e4631531" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_b60d21fb-dbf0-4fdd-9ec4-4f3e7722b980" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense_f47e1b6e-b324-4f46-b671-0335e4631531" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilities_24097a39-7892-4c10-a79c-8b8d13dda0cd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_b60d21fb-dbf0-4fdd-9ec4-4f3e7722b980" xlink:to="loc_us-gaap_DerivativeLiabilities_24097a39-7892-4c10-a79c-8b8d13dda0cd" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_GainLossOnEquityLineOfCreditFinancingProgram_5798c90c-5698-4b09-91cf-e961e03d4bf7" xlink:href="soun-20230930.xsd#soun_GainLossOnEquityLineOfCreditFinancingProgram"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_b60d21fb-dbf0-4fdd-9ec4-4f3e7722b980" xlink:to="loc_soun_GainLossOnEquityLineOfCreditFinancingProgram_5798c90c-5698-4b09-91cf-e961e03d4bf7" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_SaleOfStockStockPricePercentageOfVolumeWeightedAveregePrice_b917eac9-5a40-4360-afa1-012e9a3cd156" xlink:href="soun-20230930.xsd#soun_SaleOfStockStockPricePercentageOfVolumeWeightedAveregePrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_b60d21fb-dbf0-4fdd-9ec4-4f3e7722b980" xlink:to="loc_soun_SaleOfStockStockPricePercentageOfVolumeWeightedAveregePrice_b917eac9-5a40-4360-afa1-012e9a3cd156" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_843d58ab-3a2c-4a98-97ee-73255365c24b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_b60d21fb-dbf0-4fdd-9ec4-4f3e7722b980" xlink:to="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_843d58ab-3a2c-4a98-97ee-73255365c24b" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockPricePerShare_e4165779-6696-4809-ad40-bb9bae296e55" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockPricePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_b60d21fb-dbf0-4fdd-9ec4-4f3e7722b980" xlink:to="loc_us-gaap_SaleOfStockPricePerShare_e4165779-6696-4809-ad40-bb9bae296e55" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConversionOfStockSharesConverted1_5f337467-dd80-4537-957d-4f6ae17c1705" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConversionOfStockSharesConverted1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_b60d21fb-dbf0-4fdd-9ec4-4f3e7722b980" xlink:to="loc_us-gaap_ConversionOfStockSharesConverted1_5f337467-dd80-4537-957d-4f6ae17c1705" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_a8a40c31-12de-41b5-b8cd-4b1e973a3f00" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_b60d21fb-dbf0-4fdd-9ec4-4f3e7722b980" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_a8a40c31-12de-41b5-b8cd-4b1e973a3f00" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_e3fa4912-c0cd-4fbb-8902-8f001cc51219" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockConsiderationReceivedOnTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_b60d21fb-dbf0-4fdd-9ec4-4f3e7722b980" xlink:to="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_e3fa4912-c0cd-4fbb-8902-8f001cc51219" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_25a01d5d-eb46-4afb-b14e-41f84c8a8ab5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_b60d21fb-dbf0-4fdd-9ec4-4f3e7722b980" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_25a01d5d-eb46-4afb-b14e-41f84c8a8ab5" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_7d452ec7-e99b-43ff-a1ca-8474a3dc0410" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_b60d21fb-dbf0-4fdd-9ec4-4f3e7722b980" xlink:to="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_7d452ec7-e99b-43ff-a1ca-8474a3dc0410" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MajorCustomersAxis_3a7e5505-6454-489d-9c23-82d1d91b88b0" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MajorCustomersAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_7d452ec7-e99b-43ff-a1ca-8474a3dc0410" xlink:to="loc_srt_MajorCustomersAxis_3a7e5505-6454-489d-9c23-82d1d91b88b0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_3a7e5505-6454-489d-9c23-82d1d91b88b0_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_MajorCustomersAxis_3a7e5505-6454-489d-9c23-82d1d91b88b0" xlink:to="loc_srt_NameOfMajorCustomerDomain_3a7e5505-6454-489d-9c23-82d1d91b88b0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_a0a08036-051b-412f-8057-2b821ee896f3" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_MajorCustomersAxis_3a7e5505-6454-489d-9c23-82d1d91b88b0" xlink:to="loc_srt_NameOfMajorCustomerDomain_a0a08036-051b-412f-8057-2b821ee896f3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_CustomerAMember_6edf8a38-010b-4523-84f0-137707fe5dc4" xlink:href="soun-20230930.xsd#soun_CustomerAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_a0a08036-051b-412f-8057-2b821ee896f3" xlink:to="loc_soun_CustomerAMember_6edf8a38-010b-4523-84f0-137707fe5dc4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_CustomerBMember_38c7b81c-78e5-4f90-be31-41bbf9521aac" xlink:href="soun-20230930.xsd#soun_CustomerBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_a0a08036-051b-412f-8057-2b821ee896f3" xlink:to="loc_soun_CustomerBMember_38c7b81c-78e5-4f90-be31-41bbf9521aac" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_CustomerCMember_5a17c5bd-a2be-4478-a91e-8f7c5e1517d1" xlink:href="soun-20230930.xsd#soun_CustomerCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_a0a08036-051b-412f-8057-2b821ee896f3" xlink:to="loc_soun_CustomerCMember_5a17c5bd-a2be-4478-a91e-8f7c5e1517d1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_CustomerDMember_23c61c83-4f7a-4ef3-9b55-470011ecbe6d" xlink:href="soun-20230930.xsd#soun_CustomerDMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_a0a08036-051b-412f-8057-2b821ee896f3" xlink:to="loc_soun_CustomerDMember_23c61c83-4f7a-4ef3-9b55-470011ecbe6d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_CustomerEMember_29cc1655-0a0d-4cb7-9248-30de24aa963f" xlink:href="soun-20230930.xsd#soun_CustomerEMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_a0a08036-051b-412f-8057-2b821ee896f3" xlink:to="loc_soun_CustomerEMember_29cc1655-0a0d-4cb7-9248-30de24aa963f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_43169545-d173-4a5b-96fd-e5075e83d2ba" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_7d452ec7-e99b-43ff-a1ca-8474a3dc0410" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_43169545-d173-4a5b-96fd-e5075e83d2ba" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_43169545-d173-4a5b-96fd-e5075e83d2ba_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_43169545-d173-4a5b-96fd-e5075e83d2ba" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_43169545-d173-4a5b-96fd-e5075e83d2ba_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_30610a9c-26a8-4ae4-8c22-0b6f1396cb21" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_43169545-d173-4a5b-96fd-e5075e83d2ba" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_30610a9c-26a8-4ae4-8c22-0b6f1396cb21" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableMember_678ed50c-b118-4a71-b047-cdf36f7ec4ad" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsReceivableMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_30610a9c-26a8-4ae4-8c22-0b6f1396cb21" xlink:to="loc_us-gaap_AccountsReceivableMember_678ed50c-b118-4a71-b047-cdf36f7ec4ad" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesRevenueNetMember_3297f2fb-c0c1-4526-8d89-aa691891fcc8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SalesRevenueNetMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_30610a9c-26a8-4ae4-8c22-0b6f1396cb21" xlink:to="loc_us-gaap_SalesRevenueNetMember_3297f2fb-c0c1-4526-8d89-aa691891fcc8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_2fe07862-35e8-44c2-bcb9-5c1c77cb2c88" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_7d452ec7-e99b-43ff-a1ca-8474a3dc0410" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_2fe07862-35e8-44c2-bcb9-5c1c77cb2c88" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_2fe07862-35e8-44c2-bcb9-5c1c77cb2c88_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_2fe07862-35e8-44c2-bcb9-5c1c77cb2c88" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_2fe07862-35e8-44c2-bcb9-5c1c77cb2c88_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_b53e46e3-a753-4a54-8542-e05ea56c9d12" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_2fe07862-35e8-44c2-bcb9-5c1c77cb2c88" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_b53e46e3-a753-4a54-8542-e05ea56c9d12" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerConcentrationRiskMember_06528d09-2e04-4886-965d-3567fc85eac4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CustomerConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_b53e46e3-a753-4a54-8542-e05ea56c9d12" xlink:to="loc_us-gaap_CustomerConcentrationRiskMember_06528d09-2e04-4886-965d-3567fc85eac4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_236bb99f-186e-46a5-856c-e6c3adfa77a1" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_7d452ec7-e99b-43ff-a1ca-8474a3dc0410" xlink:to="loc_dei_LegalEntityAxis_236bb99f-186e-46a5-856c-e6c3adfa77a1" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_236bb99f-186e-46a5-856c-e6c3adfa77a1_default" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_236bb99f-186e-46a5-856c-e6c3adfa77a1" xlink:to="loc_dei_EntityDomain_236bb99f-186e-46a5-856c-e6c3adfa77a1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_d5f05922-5d52-4154-b7c4-431ed73715ed" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_236bb99f-186e-46a5-856c-e6c3adfa77a1" xlink:to="loc_dei_EntityDomain_d5f05922-5d52-4154-b7c4-431ed73715ed" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_LegacySoundHoundMember_e472d23d-1432-481a-a82f-df67affa7a4a" xlink:href="soun-20230930.xsd#soun_LegacySoundHoundMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_d5f05922-5d52-4154-b7c4-431ed73715ed" xlink:to="loc_soun_LegacySoundHoundMember_e472d23d-1432-481a-a82f-df67affa7a4a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_13ff29e9-5e9b-4208-a45b-20c8898e2795" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_7d452ec7-e99b-43ff-a1ca-8474a3dc0410" xlink:to="loc_us-gaap_StatementClassOfStockAxis_13ff29e9-5e9b-4208-a45b-20c8898e2795" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_13ff29e9-5e9b-4208-a45b-20c8898e2795_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_13ff29e9-5e9b-4208-a45b-20c8898e2795" xlink:to="loc_us-gaap_ClassOfStockDomain_13ff29e9-5e9b-4208-a45b-20c8898e2795_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_6f72f855-ed69-41a3-abbc-161cad5835ca" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_13ff29e9-5e9b-4208-a45b-20c8898e2795" xlink:to="loc_us-gaap_ClassOfStockDomain_6f72f855-ed69-41a3-abbc-161cad5835ca" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeriesAPreferredStockMember_1e67eea5-7420-4f76-8274-5bdbdb072047" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SeriesAPreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_6f72f855-ed69-41a3-abbc-161cad5835ca" xlink:to="loc_us-gaap_SeriesAPreferredStockMember_1e67eea5-7420-4f76-8274-5bdbdb072047" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_d6f3eea5-c7f3-4e4e-98bf-4c730e146a21" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_7d452ec7-e99b-43ff-a1ca-8474a3dc0410" xlink:to="loc_srt_RangeAxis_d6f3eea5-c7f3-4e4e-98bf-4c730e146a21" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_d6f3eea5-c7f3-4e4e-98bf-4c730e146a21_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_d6f3eea5-c7f3-4e4e-98bf-4c730e146a21" xlink:to="loc_srt_RangeMember_d6f3eea5-c7f3-4e4e-98bf-4c730e146a21_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_ab63aea1-d725-482f-aaa1-8350dae47f4e" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_d6f3eea5-c7f3-4e4e-98bf-4c730e146a21" xlink:to="loc_srt_RangeMember_ab63aea1-d725-482f-aaa1-8350dae47f4e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_d1dc56ca-ebe7-4f28-b570-b9b08191b67b" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_ab63aea1-d725-482f-aaa1-8350dae47f4e" xlink:to="loc_srt_MinimumMember_d1dc56ca-ebe7-4f28-b570-b9b08191b67b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_5161be21-e123-4b87-a5a6-0557c4d37e51" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_ab63aea1-d725-482f-aaa1-8350dae47f4e" xlink:to="loc_srt_MaximumMember_5161be21-e123-4b87-a5a6-0557c4d37e51" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_eccddc77-7424-490e-91d5-2f7224157c96" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_7d452ec7-e99b-43ff-a1ca-8474a3dc0410" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_eccddc77-7424-490e-91d5-2f7224157c96" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_eccddc77-7424-490e-91d5-2f7224157c96_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_eccddc77-7424-490e-91d5-2f7224157c96" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_eccddc77-7424-490e-91d5-2f7224157c96_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_6f409ab8-c091-403b-881a-c9bc4d55edaf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_eccddc77-7424-490e-91d5-2f7224157c96" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_6f409ab8-c091-403b-881a-c9bc4d55edaf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_CommonStockPurchaseAgreementMember_bae95914-2f63-47b6-b5cf-bc81b9eb2f2a" xlink:href="soun-20230930.xsd#soun_CommonStockPurchaseAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_6f409ab8-c091-403b-881a-c9bc4d55edaf" xlink:to="loc_soun_CommonStockPurchaseAgreementMember_bae95914-2f63-47b6-b5cf-bc81b9eb2f2a" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/BASISOFPRESENTATIONANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESScheduleofFairValueAssetsMeasuredonRecurringBasisDetails" xlink:type="simple" xlink:href="soun-20230930.xsd#BASISOFPRESENTATIONANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESScheduleofFairValueAssetsMeasuredonRecurringBasisDetails"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/BASISOFPRESENTATIONANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESScheduleofFairValueAssetsMeasuredonRecurringBasisDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_99f27d82-5cfa-4d51-8500-e9192eed8e42" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_81c6173f-6c25-4fc0-9880-360fac326a2b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_99f27d82-5cfa-4d51-8500-e9192eed8e42" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_81c6173f-6c25-4fc0-9880-360fac326a2b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_ef720a78-5ae7-404f-9f42-f4f904026174" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_99f27d82-5cfa-4d51-8500-e9192eed8e42" xlink:to="loc_us-gaap_AssetsFairValueDisclosure_ef720a78-5ae7-404f-9f42-f4f904026174" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_2c09f39c-9eba-4885-a969-a1b2369a6d96" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_99f27d82-5cfa-4d51-8500-e9192eed8e42" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_2c09f39c-9eba-4885-a969-a1b2369a6d96" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_c3ae5a36-23f0-48da-bff6-f77f4c20ea68" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_2c09f39c-9eba-4885-a969-a1b2369a6d96" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_c3ae5a36-23f0-48da-bff6-f77f4c20ea68" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_c3ae5a36-23f0-48da-bff6-f77f4c20ea68_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_c3ae5a36-23f0-48da-bff6-f77f4c20ea68" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_c3ae5a36-23f0-48da-bff6-f77f4c20ea68_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_d8e83ed1-1457-4cbc-b9f7-fe1322dc6606" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_c3ae5a36-23f0-48da-bff6-f77f4c20ea68" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_d8e83ed1-1457-4cbc-b9f7-fe1322dc6606" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_0704bf70-c74f-405b-896e-2b6870e0eb94" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_d8e83ed1-1457-4cbc-b9f7-fe1322dc6606" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_0704bf70-c74f-405b-896e-2b6870e0eb94" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_29a76267-e8c8-452a-a19b-d44757e2064b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_d8e83ed1-1457-4cbc-b9f7-fe1322dc6606" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_29a76267-e8c8-452a-a19b-d44757e2064b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_14f1da52-e9a0-4765-bbe8-da3f57b2feae" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_d8e83ed1-1457-4cbc-b9f7-fe1322dc6606" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_14f1da52-e9a0-4765-bbe8-da3f57b2feae" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_e921ed31-4314-494f-99d5-b8498d2075b1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_2c09f39c-9eba-4885-a969-a1b2369a6d96" xlink:to="loc_us-gaap_FinancialInstrumentAxis_e921ed31-4314-494f-99d5-b8498d2075b1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_e921ed31-4314-494f-99d5-b8498d2075b1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_e921ed31-4314-494f-99d5-b8498d2075b1" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_e921ed31-4314-494f-99d5-b8498d2075b1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_1630d287-594e-4e0c-8979-a486cda87e13" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_e921ed31-4314-494f-99d5-b8498d2075b1" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_1630d287-594e-4e0c-8979-a486cda87e13" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MoneyMarketFundsMember_e2bab9cf-3391-4103-83d2-2ac19e446f57" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MoneyMarketFundsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_1630d287-594e-4e0c-8979-a486cda87e13" xlink:to="loc_us-gaap_MoneyMarketFundsMember_e2bab9cf-3391-4103-83d2-2ac19e446f57" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_cad179cc-8bfd-4ff7-b48c-46f085112bc6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_2c09f39c-9eba-4885-a969-a1b2369a6d96" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_cad179cc-8bfd-4ff7-b48c-46f085112bc6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_cad179cc-8bfd-4ff7-b48c-46f085112bc6_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_cad179cc-8bfd-4ff7-b48c-46f085112bc6" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_cad179cc-8bfd-4ff7-b48c-46f085112bc6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_f39414c6-c5a8-4ccf-b1c3-63d484682d9d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_cad179cc-8bfd-4ff7-b48c-46f085112bc6" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_f39414c6-c5a8-4ccf-b1c3-63d484682d9d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_bf312e8c-e17f-4e77-9688-a20031513aaa" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementsRecurringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_f39414c6-c5a8-4ccf-b1c3-63d484682d9d" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_bf312e8c-e17f-4e77-9688-a20031513aaa" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/BASISOFPRESENTATIONANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESScheduleofFairValueLiabilitiesMeasuredonRecurringBasisDetails" xlink:type="simple" xlink:href="soun-20230930.xsd#BASISOFPRESENTATIONANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESScheduleofFairValueLiabilitiesMeasuredonRecurringBasisDetails"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/BASISOFPRESENTATIONANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESScheduleofFairValueLiabilitiesMeasuredonRecurringBasisDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_a3764a62-3f0d-4a61-b984-e838ec24bdd9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_d977b0f4-2fcd-4ef9-b51a-daef9f04415a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_a3764a62-3f0d-4a61-b984-e838ec24bdd9" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_d977b0f4-2fcd-4ef9-b51a-daef9f04415a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_17fc8f4c-3a50-43c1-a4da-bf8294848231" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_d977b0f4-2fcd-4ef9-b51a-daef9f04415a" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_17fc8f4c-3a50-43c1-a4da-bf8294848231" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings_d96f4a1d-a1c1-4003-b9ee-e8f9663be152" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_d977b0f4-2fcd-4ef9-b51a-daef9f04415a" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings_d96f4a1d-a1c1-4003-b9ee-e8f9663be152" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements_02e6cf4d-802b-4419-af5c-5cf32e3e8211" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_d977b0f4-2fcd-4ef9-b51a-daef9f04415a" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements_02e6cf4d-802b-4419-af5c-5cf32e3e8211" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_a3f53c11-4308-4072-930f-38fdbb4731ba" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_7610636c-0938-4c94-a721-23f689315ff2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_a3764a62-3f0d-4a61-b984-e838ec24bdd9" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_7610636c-0938-4c94-a721-23f689315ff2" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_9b24ba72-f675-4480-9b53-f9a2b8ab510f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_7610636c-0938-4c94-a721-23f689315ff2" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_9b24ba72-f675-4480-9b53-f9a2b8ab510f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_9b24ba72-f675-4480-9b53-f9a2b8ab510f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_9b24ba72-f675-4480-9b53-f9a2b8ab510f" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_9b24ba72-f675-4480-9b53-f9a2b8ab510f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_4112fc26-638a-4ef6-98c6-923e43b30287" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_9b24ba72-f675-4480-9b53-f9a2b8ab510f" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_4112fc26-638a-4ef6-98c6-923e43b30287" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_2d7186b0-d84a-4027-8135-abcce8e1b848" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementsRecurringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_4112fc26-638a-4ef6-98c6-923e43b30287" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_2d7186b0-d84a-4027-8135-abcce8e1b848" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByLiabilityClassAxis_b2ece0f7-1153-4553-81b6-2eaa825dbc67" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueByLiabilityClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_7610636c-0938-4c94-a721-23f689315ff2" xlink:to="loc_us-gaap_FairValueByLiabilityClassAxis_b2ece0f7-1153-4553-81b6-2eaa825dbc67" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_b2ece0f7-1153-4553-81b6-2eaa825dbc67_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByLiabilityClassAxis_b2ece0f7-1153-4553-81b6-2eaa825dbc67" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_b2ece0f7-1153-4553-81b6-2eaa825dbc67_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_996edf8b-7d4d-414f-8874-3599379e8d3c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByLiabilityClassAxis_b2ece0f7-1153-4553-81b6-2eaa825dbc67" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_996edf8b-7d4d-414f-8874-3599379e8d3c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember_731ce98f-3bc8-45b2-9e2a-a0011371e0e3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_996edf8b-7d4d-414f-8874-3599379e8d3c" xlink:to="loc_us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember_731ce98f-3bc8-45b2-9e2a-a0011371e0e3" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/BUSINESSCOMBINATIONNarrativesDetails" xlink:type="simple" xlink:href="soun-20230930.xsd#BUSINESSCOMBINATIONNarrativesDetails"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/BUSINESSCOMBINATIONNarrativesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_soun_ReverseRecapitalizationLineItems_386b27da-6b7a-4fdf-bf15-88ae72802279" xlink:href="soun-20230930.xsd#soun_ReverseRecapitalizationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_CommonStockAndPreferredStockSharesAuthorized_71ee1db8-2fd3-424f-b667-a3fb9d21d5bf" xlink:href="soun-20230930.xsd#soun_CommonStockAndPreferredStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_soun_ReverseRecapitalizationLineItems_386b27da-6b7a-4fdf-bf15-88ae72802279" xlink:to="loc_soun_CommonStockAndPreferredStockSharesAuthorized_71ee1db8-2fd3-424f-b667-a3fb9d21d5bf" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_d52136d9-4a7d-47f3-a999-0732b68aac2b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_soun_ReverseRecapitalizationLineItems_386b27da-6b7a-4fdf-bf15-88ae72802279" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_d52136d9-4a7d-47f3-a999-0732b68aac2b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_d5dda7f4-1410-459f-89a2-9f02f59d009b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_soun_ReverseRecapitalizationLineItems_386b27da-6b7a-4fdf-bf15-88ae72802279" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_d5dda7f4-1410-459f-89a2-9f02f59d009b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_20116fdd-95d9-4993-9801-a4ae934eca9a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_soun_ReverseRecapitalizationLineItems_386b27da-6b7a-4fdf-bf15-88ae72802279" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_20116fdd-95d9-4993-9801-a4ae934eca9a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_ac808126-cb5a-435d-a2fb-aa1a579386fe" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_soun_ReverseRecapitalizationLineItems_386b27da-6b7a-4fdf-bf15-88ae72802279" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_ac808126-cb5a-435d-a2fb-aa1a579386fe" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_NumberOfVotesAllocatedToEachShare_516bbdc1-c9d8-4c1f-aa54-21ef786ef7db" xlink:href="soun-20230930.xsd#soun_NumberOfVotesAllocatedToEachShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_soun_ReverseRecapitalizationLineItems_386b27da-6b7a-4fdf-bf15-88ae72802279" xlink:to="loc_soun_NumberOfVotesAllocatedToEachShare_516bbdc1-c9d8-4c1f-aa54-21ef786ef7db" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_3bf12a5b-2a12-4ad9-9be9-4a5b0647139e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_soun_ReverseRecapitalizationLineItems_386b27da-6b7a-4fdf-bf15-88ae72802279" xlink:to="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_3bf12a5b-2a12-4ad9-9be9-4a5b0647139e" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockPricePerShare_b20a821c-94b7-4ea5-96d7-60dfb812f372" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockPricePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_soun_ReverseRecapitalizationLineItems_386b27da-6b7a-4fdf-bf15-88ae72802279" xlink:to="loc_us-gaap_SaleOfStockPricePerShare_b20a821c-94b7-4ea5-96d7-60dfb812f372" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_043da89f-b4f0-4311-87d3-b8bda32cf80d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockConsiderationReceivedOnTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_soun_ReverseRecapitalizationLineItems_386b27da-6b7a-4fdf-bf15-88ae72802279" xlink:to="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_043da89f-b4f0-4311-87d3-b8bda32cf80d" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_ConversionOfStockShareConversionRate_545239b3-2693-418d-9865-2bbfd4cf1aab" xlink:href="soun-20230930.xsd#soun_ConversionOfStockShareConversionRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_soun_ReverseRecapitalizationLineItems_386b27da-6b7a-4fdf-bf15-88ae72802279" xlink:to="loc_soun_ConversionOfStockShareConversionRate_545239b3-2693-418d-9865-2bbfd4cf1aab" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConversionOfStockSharesIssued1_de9e605c-bb64-4b1a-9f1e-a6d6779d5701" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConversionOfStockSharesIssued1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_soun_ReverseRecapitalizationLineItems_386b27da-6b7a-4fdf-bf15-88ae72802279" xlink:to="loc_us-gaap_ConversionOfStockSharesIssued1_de9e605c-bb64-4b1a-9f1e-a6d6779d5701" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_ProceedsFromReverseRecapitalizationTransaction_0a0cedc4-8702-4db6-89ef-e2a82cefdeb3" xlink:href="soun-20230930.xsd#soun_ProceedsFromReverseRecapitalizationTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_soun_ReverseRecapitalizationLineItems_386b27da-6b7a-4fdf-bf15-88ae72802279" xlink:to="loc_soun_ProceedsFromReverseRecapitalizationTransaction_0a0cedc4-8702-4db6-89ef-e2a82cefdeb3" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_PaymentsOfReverseRecapitalizationTransactionCosts_81882cf0-cbc6-407f-b764-a321ec362628" xlink:href="soun-20230930.xsd#soun_PaymentsOfReverseRecapitalizationTransactionCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_soun_ReverseRecapitalizationLineItems_386b27da-6b7a-4fdf-bf15-88ae72802279" xlink:to="loc_soun_PaymentsOfReverseRecapitalizationTransactionCosts_81882cf0-cbc6-407f-b764-a321ec362628" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_StockIssuedDuringPeriodValueReverseRecapitalization_bbd1afc8-07b1-4803-b2c7-66ebe3638c79" xlink:href="soun-20230930.xsd#soun_StockIssuedDuringPeriodValueReverseRecapitalization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_soun_ReverseRecapitalizationLineItems_386b27da-6b7a-4fdf-bf15-88ae72802279" xlink:to="loc_soun_StockIssuedDuringPeriodValueReverseRecapitalization_bbd1afc8-07b1-4803-b2c7-66ebe3638c79" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueAcquisitions_7552dba0-a2f9-4c00-b640-fdf49ff6aefb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodValueAcquisitions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_soun_ReverseRecapitalizationLineItems_386b27da-6b7a-4fdf-bf15-88ae72802279" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueAcquisitions_7552dba0-a2f9-4c00-b640-fdf49ff6aefb" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_ScheduleOfReverseRecapitalizationTable_1bba5ace-2197-4e3d-92e1-ad3c8beb4961" xlink:href="soun-20230930.xsd#soun_ScheduleOfReverseRecapitalizationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_soun_ReverseRecapitalizationLineItems_386b27da-6b7a-4fdf-bf15-88ae72802279" xlink:to="loc_soun_ScheduleOfReverseRecapitalizationTable_1bba5ace-2197-4e3d-92e1-ad3c8beb4961" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_314c114e-65e6-4636-9796-68bfa885f1af" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_soun_ScheduleOfReverseRecapitalizationTable_1bba5ace-2197-4e3d-92e1-ad3c8beb4961" xlink:to="loc_us-gaap_StatementClassOfStockAxis_314c114e-65e6-4636-9796-68bfa885f1af" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_314c114e-65e6-4636-9796-68bfa885f1af_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_314c114e-65e6-4636-9796-68bfa885f1af" xlink:to="loc_us-gaap_ClassOfStockDomain_314c114e-65e6-4636-9796-68bfa885f1af_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_3a23d248-629f-4f7e-a748-1fea29beb865" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_314c114e-65e6-4636-9796-68bfa885f1af" xlink:to="loc_us-gaap_ClassOfStockDomain_3a23d248-629f-4f7e-a748-1fea29beb865" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_07519a3e-69c2-4498-be45-88cbccfe27bb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_3a23d248-629f-4f7e-a748-1fea29beb865" xlink:to="loc_us-gaap_CommonClassAMember_07519a3e-69c2-4498-be45-88cbccfe27bb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassBMember_8071a5d3-8c38-4a67-98bf-91cb2541a208" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonClassBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_3a23d248-629f-4f7e-a748-1fea29beb865" xlink:to="loc_us-gaap_CommonClassBMember_8071a5d3-8c38-4a67-98bf-91cb2541a208" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_07cfc38d-ae63-4c7f-992b-fc23a64ca553" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_soun_ScheduleOfReverseRecapitalizationTable_1bba5ace-2197-4e3d-92e1-ad3c8beb4961" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_07cfc38d-ae63-4c7f-992b-fc23a64ca553" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_07cfc38d-ae63-4c7f-992b-fc23a64ca553_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_07cfc38d-ae63-4c7f-992b-fc23a64ca553" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_07cfc38d-ae63-4c7f-992b-fc23a64ca553_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_d0912881-10a0-44d6-99dc-30e787e1a398" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_07cfc38d-ae63-4c7f-992b-fc23a64ca553" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_d0912881-10a0-44d6-99dc-30e787e1a398" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IPOMember_d79550a6-2b7e-4227-b969-40d62a4483fc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IPOMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_d0912881-10a0-44d6-99dc-30e787e1a398" xlink:to="loc_us-gaap_IPOMember_d79550a6-2b7e-4227-b969-40d62a4483fc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_PrivateInvestmentInPublicEquityMember_33add55d-4cf8-4932-99cb-6e1b8ca36a30" xlink:href="soun-20230930.xsd#soun_PrivateInvestmentInPublicEquityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_d0912881-10a0-44d6-99dc-30e787e1a398" xlink:to="loc_soun_PrivateInvestmentInPublicEquityMember_33add55d-4cf8-4932-99cb-6e1b8ca36a30" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_27dfef7f-2182-4aa1-9506-8d4ee59c248b" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_soun_ScheduleOfReverseRecapitalizationTable_1bba5ace-2197-4e3d-92e1-ad3c8beb4961" xlink:to="loc_dei_LegalEntityAxis_27dfef7f-2182-4aa1-9506-8d4ee59c248b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_27dfef7f-2182-4aa1-9506-8d4ee59c248b_default" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_27dfef7f-2182-4aa1-9506-8d4ee59c248b" xlink:to="loc_dei_EntityDomain_27dfef7f-2182-4aa1-9506-8d4ee59c248b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_a4c8cd84-c645-4704-8899-d0927967f588" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_27dfef7f-2182-4aa1-9506-8d4ee59c248b" xlink:to="loc_dei_EntityDomain_a4c8cd84-c645-4704-8899-d0927967f588" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_ArchimedesTechSPACPartnersCoATSPMember_da1106ce-aeba-4107-a738-2ce66dae8c0d" xlink:href="soun-20230930.xsd#soun_ArchimedesTechSPACPartnersCoATSPMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_a4c8cd84-c645-4704-8899-d0927967f588" xlink:to="loc_soun_ArchimedesTechSPACPartnersCoATSPMember_da1106ce-aeba-4107-a738-2ce66dae8c0d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_LegacySoundHoundMember_2b0ff726-c24d-4b87-9f98-2c636ff82a59" xlink:href="soun-20230930.xsd#soun_LegacySoundHoundMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_a4c8cd84-c645-4704-8899-d0927967f588" xlink:to="loc_soun_LegacySoundHoundMember_2b0ff726-c24d-4b87-9f98-2c636ff82a59" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/BUSINESSCOMBINATIONScheduleofcommonstockissuedfortheconsummationofthebusinesscombinationDetails" xlink:type="simple" xlink:href="soun-20230930.xsd#BUSINESSCOMBINATIONScheduleofcommonstockissuedfortheconsummationofthebusinesscombinationDetails"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/BUSINESSCOMBINATIONScheduleofcommonstockissuedfortheconsummationofthebusinesscombinationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_soun_ReverseRecapitalizationLineItems_2a25ea4f-7e9e-4af1-bd76-811b26cd83ec" xlink:href="soun-20230930.xsd#soun_ReverseRecapitalizationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesOutstanding_e37cdd6b-1e12-4bf8-adfc-a4ecd778e527" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_soun_ReverseRecapitalizationLineItems_2a25ea4f-7e9e-4af1-bd76-811b26cd83ec" xlink:to="loc_us-gaap_SharesOutstanding_e37cdd6b-1e12-4bf8-adfc-a4ecd778e527" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_7f5dd903-279a-4a6b-9172-c0a6055f76c5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_soun_ReverseRecapitalizationLineItems_2a25ea4f-7e9e-4af1-bd76-811b26cd83ec" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_7f5dd903-279a-4a6b-9172-c0a6055f76c5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesAcquisitions_d3822392-8eff-4592-a7c8-a20fec30b1ae" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesAcquisitions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_soun_ReverseRecapitalizationLineItems_2a25ea4f-7e9e-4af1-bd76-811b26cd83ec" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesAcquisitions_d3822392-8eff-4592-a7c8-a20fec30b1ae" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_f2dd7cb8-2a0c-4dd1-bef7-fb4924776fec" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_soun_ReverseRecapitalizationLineItems_2a25ea4f-7e9e-4af1-bd76-811b26cd83ec" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_f2dd7cb8-2a0c-4dd1-bef7-fb4924776fec" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_ScheduleOfReverseRecapitalizationTable_f305faa0-4669-41dd-a2bf-e20334b737e0" xlink:href="soun-20230930.xsd#soun_ScheduleOfReverseRecapitalizationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_soun_ReverseRecapitalizationLineItems_2a25ea4f-7e9e-4af1-bd76-811b26cd83ec" xlink:to="loc_soun_ScheduleOfReverseRecapitalizationTable_f305faa0-4669-41dd-a2bf-e20334b737e0" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_b65aee4c-ea63-4bdd-b9b8-1c127cae208a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_soun_ScheduleOfReverseRecapitalizationTable_f305faa0-4669-41dd-a2bf-e20334b737e0" xlink:to="loc_us-gaap_StatementClassOfStockAxis_b65aee4c-ea63-4bdd-b9b8-1c127cae208a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_b65aee4c-ea63-4bdd-b9b8-1c127cae208a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_b65aee4c-ea63-4bdd-b9b8-1c127cae208a" xlink:to="loc_us-gaap_ClassOfStockDomain_b65aee4c-ea63-4bdd-b9b8-1c127cae208a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_da5f2120-1d62-405c-b4d7-f6c1aeafc6ca" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_b65aee4c-ea63-4bdd-b9b8-1c127cae208a" xlink:to="loc_us-gaap_ClassOfStockDomain_da5f2120-1d62-405c-b4d7-f6c1aeafc6ca" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_5ec1eaa1-8fd3-475b-9685-ea03b6ee7fa9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_da5f2120-1d62-405c-b4d7-f6c1aeafc6ca" xlink:to="loc_us-gaap_CommonClassAMember_5ec1eaa1-8fd3-475b-9685-ea03b6ee7fa9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassBMember_ee3a1060-4985-404c-96c5-7409efa1b722" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonClassBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_da5f2120-1d62-405c-b4d7-f6c1aeafc6ca" xlink:to="loc_us-gaap_CommonClassBMember_ee3a1060-4985-404c-96c5-7409efa1b722" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_d545d2c5-92a7-4f66-9360-015949316717" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_soun_ScheduleOfReverseRecapitalizationTable_f305faa0-4669-41dd-a2bf-e20334b737e0" xlink:to="loc_srt_CounterpartyNameAxis_d545d2c5-92a7-4f66-9360-015949316717" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_d545d2c5-92a7-4f66-9360-015949316717_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_d545d2c5-92a7-4f66-9360-015949316717" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_d545d2c5-92a7-4f66-9360-015949316717_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_73973a93-d62f-46c6-af39-2865bb0fb3fb" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_d545d2c5-92a7-4f66-9360-015949316717" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_73973a93-d62f-46c6-af39-2865bb0fb3fb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_ArchimedesTechSPACPartnersCoATSPMember_1ae9e27d-e2a0-4c17-9ba0-6e6f02896e91" xlink:href="soun-20230930.xsd#soun_ArchimedesTechSPACPartnersCoATSPMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_73973a93-d62f-46c6-af39-2865bb0fb3fb" xlink:to="loc_soun_ArchimedesTechSPACPartnersCoATSPMember_1ae9e27d-e2a0-4c17-9ba0-6e6f02896e91" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_LegacyFoundersMember_63c72ecc-51e9-4c7d-8bc3-4189974e4d56" xlink:href="soun-20230930.xsd#soun_LegacyFoundersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_73973a93-d62f-46c6-af39-2865bb0fb3fb" xlink:to="loc_soun_LegacyFoundersMember_63c72ecc-51e9-4c7d-8bc3-4189974e4d56" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_16073e55-9745-4a8f-94f5-155cb6c6eee9" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_soun_ScheduleOfReverseRecapitalizationTable_f305faa0-4669-41dd-a2bf-e20334b737e0" xlink:to="loc_dei_LegalEntityAxis_16073e55-9745-4a8f-94f5-155cb6c6eee9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_16073e55-9745-4a8f-94f5-155cb6c6eee9_default" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_16073e55-9745-4a8f-94f5-155cb6c6eee9" xlink:to="loc_dei_EntityDomain_16073e55-9745-4a8f-94f5-155cb6c6eee9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_d53127d2-ba44-48b3-b408-ed780efe14ab" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_16073e55-9745-4a8f-94f5-155cb6c6eee9" xlink:to="loc_dei_EntityDomain_d53127d2-ba44-48b3-b408-ed780efe14ab" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_LegacySoundHoundMember_4aed65ec-49fb-4142-a0cd-89570043c20b" xlink:href="soun-20230930.xsd#soun_LegacySoundHoundMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_d53127d2-ba44-48b3-b408-ed780efe14ab" xlink:to="loc_soun_LegacySoundHoundMember_4aed65ec-49fb-4142-a0cd-89570043c20b" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/REVENUERECOGNITIONNarrativesDetails" xlink:type="simple" xlink:href="soun-20230930.xsd#REVENUERECOGNITIONNarrativesDetails"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/REVENUERECOGNITIONNarrativesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_335d4aa2-f98b-478e-9390-fd94ec7609d3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenuePerformanceObligationDescriptionOfTiming_c9e3afae-0c29-401a-ad58-cbaaf8315c98" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenuePerformanceObligationDescriptionOfTiming"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_335d4aa2-f98b-478e-9390-fd94ec7609d3" xlink:to="loc_us-gaap_RevenuePerformanceObligationDescriptionOfTiming_c9e3afae-0c29-401a-ad58-cbaaf8315c98" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_1354f1e1-ab3b-4343-a222-a1e8b5b13454" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ContractWithCustomerLiabilityRevenueRecognized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_335d4aa2-f98b-478e-9390-fd94ec7609d3" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_1354f1e1-ab3b-4343-a222-a1e8b5b13454" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueModificationOfContract_683e7810-3c3f-440c-9c90-5535d2e6846e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueModificationOfContract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_335d4aa2-f98b-478e-9390-fd94ec7609d3" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueModificationOfContract_683e7810-3c3f-440c-9c90-5535d2e6846e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueModificationOfContract_0e231b11-9d2d-4a50-b50d-fa7542ae36dd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueModificationOfContract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_335d4aa2-f98b-478e-9390-fd94ec7609d3" xlink:to="loc_us-gaap_ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueModificationOfContract_0e231b11-9d2d-4a50-b50d-fa7542ae36dd" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligation_2a105495-00ce-41d9-89b3-80361364fe58" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_335d4aa2-f98b-478e-9390-fd94ec7609d3" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligation_2a105495-00ce-41d9-89b3-80361364fe58" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_8538ceed-c80f-4612-9a7b-dd81310f8d47" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_335d4aa2-f98b-478e-9390-fd94ec7609d3" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_8538ceed-c80f-4612-9a7b-dd81310f8d47" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_d5e5ced1-9336-441e-b5d6-7e7021497822" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_335d4aa2-f98b-478e-9390-fd94ec7609d3" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_d5e5ced1-9336-441e-b5d6-7e7021497822" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_65165779-136d-4874-8452-403e2d009956" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_d5e5ced1-9336-441e-b5d6-7e7021497822" xlink:to="loc_srt_RangeAxis_65165779-136d-4874-8452-403e2d009956" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_65165779-136d-4874-8452-403e2d009956_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_65165779-136d-4874-8452-403e2d009956" xlink:to="loc_srt_RangeMember_65165779-136d-4874-8452-403e2d009956_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_5a1c16e6-693e-4816-a0fc-8677a7697597" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_65165779-136d-4874-8452-403e2d009956" xlink:to="loc_srt_RangeMember_5a1c16e6-693e-4816-a0fc-8677a7697597" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_edb4917b-0dc9-4456-9fac-f2239cae92a1" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_5a1c16e6-693e-4816-a0fc-8677a7697597" xlink:to="loc_srt_MinimumMember_edb4917b-0dc9-4456-9fac-f2239cae92a1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_582b7808-b8d2-4251-acc7-51c64aa78ebf" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_5a1c16e6-693e-4816-a0fc-8677a7697597" xlink:to="loc_srt_MaximumMember_582b7808-b8d2-4251-acc7-51c64aa78ebf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TimingOfTransferOfGoodOrServiceAxis_1d23b563-3118-44ce-827c-ce203748dd1f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TimingOfTransferOfGoodOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_d5e5ced1-9336-441e-b5d6-7e7021497822" xlink:to="loc_us-gaap_TimingOfTransferOfGoodOrServiceAxis_1d23b563-3118-44ce-827c-ce203748dd1f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_1d23b563-3118-44ce-827c-ce203748dd1f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TimingOfTransferOfGoodOrServiceDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_TimingOfTransferOfGoodOrServiceAxis_1d23b563-3118-44ce-827c-ce203748dd1f" xlink:to="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_1d23b563-3118-44ce-827c-ce203748dd1f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_5339e5d4-d8ea-4fc7-bdcd-0667faa0a113" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TimingOfTransferOfGoodOrServiceDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_TimingOfTransferOfGoodOrServiceAxis_1d23b563-3118-44ce-827c-ce203748dd1f" xlink:to="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_5339e5d4-d8ea-4fc7-bdcd-0667faa0a113" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransferredOverTimeMember_77ec26df-5f59-46a2-860b-4a547bbddea6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TransferredOverTimeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_5339e5d4-d8ea-4fc7-bdcd-0667faa0a113" xlink:to="loc_us-gaap_TransferredOverTimeMember_77ec26df-5f59-46a2-860b-4a547bbddea6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransferredAtPointInTimeMember_04d0d5ed-b6ae-4646-ba85-c4c63009bf0a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TransferredAtPointInTimeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_5339e5d4-d8ea-4fc7-bdcd-0667faa0a113" xlink:to="loc_us-gaap_TransferredAtPointInTimeMember_04d0d5ed-b6ae-4646-ba85-c4c63009bf0a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_c62a4ba9-8838-41bb-9f05-7685689e0a54" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_d5e5ced1-9336-441e-b5d6-7e7021497822" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_c62a4ba9-8838-41bb-9f05-7685689e0a54" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/REVENUERECOGNITIONNarrativesDetails_1" xlink:type="simple" xlink:href="soun-20230930.xsd#REVENUERECOGNITIONNarrativesDetails_1"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/REVENUERECOGNITIONNarrativesDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_335d4aa2-f98b-478e-9390-fd94ec7609d3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenuePerformanceObligationDescriptionOfTiming_c9e3afae-0c29-401a-ad58-cbaaf8315c98" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenuePerformanceObligationDescriptionOfTiming"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_335d4aa2-f98b-478e-9390-fd94ec7609d3" xlink:to="loc_us-gaap_RevenuePerformanceObligationDescriptionOfTiming_c9e3afae-0c29-401a-ad58-cbaaf8315c98" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_1354f1e1-ab3b-4343-a222-a1e8b5b13454" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ContractWithCustomerLiabilityRevenueRecognized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_335d4aa2-f98b-478e-9390-fd94ec7609d3" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_1354f1e1-ab3b-4343-a222-a1e8b5b13454" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueModificationOfContract_683e7810-3c3f-440c-9c90-5535d2e6846e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueModificationOfContract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_335d4aa2-f98b-478e-9390-fd94ec7609d3" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueModificationOfContract_683e7810-3c3f-440c-9c90-5535d2e6846e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueModificationOfContract_0e231b11-9d2d-4a50-b50d-fa7542ae36dd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueModificationOfContract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_335d4aa2-f98b-478e-9390-fd94ec7609d3" xlink:to="loc_us-gaap_ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueModificationOfContract_0e231b11-9d2d-4a50-b50d-fa7542ae36dd" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligation_2a105495-00ce-41d9-89b3-80361364fe58" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_335d4aa2-f98b-478e-9390-fd94ec7609d3" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligation_2a105495-00ce-41d9-89b3-80361364fe58" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_8538ceed-c80f-4612-9a7b-dd81310f8d47" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_335d4aa2-f98b-478e-9390-fd94ec7609d3" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_8538ceed-c80f-4612-9a7b-dd81310f8d47" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_d5e5ced1-9336-441e-b5d6-7e7021497822" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_335d4aa2-f98b-478e-9390-fd94ec7609d3" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_d5e5ced1-9336-441e-b5d6-7e7021497822" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_65165779-136d-4874-8452-403e2d009956" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_d5e5ced1-9336-441e-b5d6-7e7021497822" xlink:to="loc_srt_RangeAxis_65165779-136d-4874-8452-403e2d009956" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_65165779-136d-4874-8452-403e2d009956_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_65165779-136d-4874-8452-403e2d009956" xlink:to="loc_srt_RangeMember_65165779-136d-4874-8452-403e2d009956_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_5a1c16e6-693e-4816-a0fc-8677a7697597" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_65165779-136d-4874-8452-403e2d009956" xlink:to="loc_srt_RangeMember_5a1c16e6-693e-4816-a0fc-8677a7697597" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_edb4917b-0dc9-4456-9fac-f2239cae92a1" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_5a1c16e6-693e-4816-a0fc-8677a7697597" xlink:to="loc_srt_MinimumMember_edb4917b-0dc9-4456-9fac-f2239cae92a1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_582b7808-b8d2-4251-acc7-51c64aa78ebf" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_5a1c16e6-693e-4816-a0fc-8677a7697597" xlink:to="loc_srt_MaximumMember_582b7808-b8d2-4251-acc7-51c64aa78ebf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TimingOfTransferOfGoodOrServiceAxis_1d23b563-3118-44ce-827c-ce203748dd1f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TimingOfTransferOfGoodOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_d5e5ced1-9336-441e-b5d6-7e7021497822" xlink:to="loc_us-gaap_TimingOfTransferOfGoodOrServiceAxis_1d23b563-3118-44ce-827c-ce203748dd1f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_1d23b563-3118-44ce-827c-ce203748dd1f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TimingOfTransferOfGoodOrServiceDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_TimingOfTransferOfGoodOrServiceAxis_1d23b563-3118-44ce-827c-ce203748dd1f" xlink:to="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_1d23b563-3118-44ce-827c-ce203748dd1f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_5339e5d4-d8ea-4fc7-bdcd-0667faa0a113" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TimingOfTransferOfGoodOrServiceDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_TimingOfTransferOfGoodOrServiceAxis_1d23b563-3118-44ce-827c-ce203748dd1f" xlink:to="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_5339e5d4-d8ea-4fc7-bdcd-0667faa0a113" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransferredOverTimeMember_77ec26df-5f59-46a2-860b-4a547bbddea6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TransferredOverTimeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_5339e5d4-d8ea-4fc7-bdcd-0667faa0a113" xlink:to="loc_us-gaap_TransferredOverTimeMember_77ec26df-5f59-46a2-860b-4a547bbddea6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransferredAtPointInTimeMember_04d0d5ed-b6ae-4646-ba85-c4c63009bf0a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TransferredAtPointInTimeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_5339e5d4-d8ea-4fc7-bdcd-0667faa0a113" xlink:to="loc_us-gaap_TransferredAtPointInTimeMember_04d0d5ed-b6ae-4646-ba85-c4c63009bf0a" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/REVENUERECOGNITIONScheduleofrevenuesundereachperformanceDetails" xlink:type="simple" xlink:href="soun-20230930.xsd#REVENUERECOGNITIONScheduleofrevenuesundereachperformanceDetails"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/REVENUERECOGNITIONScheduleofrevenuesundereachperformanceDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_90d93443-3340-40b6-86ce-9794473d13d8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_4ca7e0b4-15b5-481d-bdf6-69a46f83fc38" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_90d93443-3340-40b6-86ce-9794473d13d8" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_4ca7e0b4-15b5-481d-bdf6-69a46f83fc38" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_45e8d369-5a1c-4abe-8b88-fd5a619b654c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_90d93443-3340-40b6-86ce-9794473d13d8" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_45e8d369-5a1c-4abe-8b88-fd5a619b654c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_4bbc5a9c-da5a-4c24-8820-527e2eaaad24" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_45e8d369-5a1c-4abe-8b88-fd5a619b654c" xlink:to="loc_srt_ProductOrServiceAxis_4bbc5a9c-da5a-4c24-8820-527e2eaaad24" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_4bbc5a9c-da5a-4c24-8820-527e2eaaad24_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_4bbc5a9c-da5a-4c24-8820-527e2eaaad24" xlink:to="loc_srt_ProductsAndServicesDomain_4bbc5a9c-da5a-4c24-8820-527e2eaaad24_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_a789b323-2bb1-4e2e-acad-2cd37b773cac" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_4bbc5a9c-da5a-4c24-8820-527e2eaaad24" xlink:to="loc_srt_ProductsAndServicesDomain_a789b323-2bb1-4e2e-acad-2cd37b773cac" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_HostedServicesMember_0b21965f-07d0-4fa5-9cb2-0f08059e0ad1" xlink:href="soun-20230930.xsd#soun_HostedServicesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_a789b323-2bb1-4e2e-acad-2cd37b773cac" xlink:to="loc_soun_HostedServicesMember_0b21965f-07d0-4fa5-9cb2-0f08059e0ad1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_ProfessionalServiceMember_6dc6f64f-9c47-42a6-bf2c-d2aa2298818d" xlink:href="soun-20230930.xsd#soun_ProfessionalServiceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_a789b323-2bb1-4e2e-acad-2cd37b773cac" xlink:to="loc_soun_ProfessionalServiceMember_6dc6f64f-9c47-42a6-bf2c-d2aa2298818d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_MonetizationMember_80f7759f-0753-4a0a-832a-357e129ed20f" xlink:href="soun-20230930.xsd#soun_MonetizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_a789b323-2bb1-4e2e-acad-2cd37b773cac" xlink:to="loc_soun_MonetizationMember_80f7759f-0753-4a0a-832a-357e129ed20f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_LicensingMember_f5325003-1d57-4a3b-b6d9-94579657195f" xlink:href="soun-20230930.xsd#soun_LicensingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_a789b323-2bb1-4e2e-acad-2cd37b773cac" xlink:to="loc_soun_LicensingMember_f5325003-1d57-4a3b-b6d9-94579657195f" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/REVENUERECOGNITIONScheduleofdisaggregatesrevenuebygeographiclocationDetails" xlink:type="simple" xlink:href="soun-20230930.xsd#REVENUERECOGNITIONScheduleofdisaggregatesrevenuebygeographiclocationDetails"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/REVENUERECOGNITIONScheduleofdisaggregatesrevenuebygeographiclocationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_ffa8ee43-b30f-4b0e-b436-3bb7838fdb94" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_86409261-d852-4834-89ae-e9397302034c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_ffa8ee43-b30f-4b0e-b436-3bb7838fdb94" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_86409261-d852-4834-89ae-e9397302034c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_fede3d6f-e346-4da1-b43f-ef96857aafa2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_ffa8ee43-b30f-4b0e-b436-3bb7838fdb94" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_fede3d6f-e346-4da1-b43f-ef96857aafa2" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_c4c01bc0-1cab-47b2-8168-b6db266c5939" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_fede3d6f-e346-4da1-b43f-ef96857aafa2" xlink:to="loc_srt_StatementGeographicalAxis_c4c01bc0-1cab-47b2-8168-b6db266c5939" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_c4c01bc0-1cab-47b2-8168-b6db266c5939_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_c4c01bc0-1cab-47b2-8168-b6db266c5939" xlink:to="loc_srt_SegmentGeographicalDomain_c4c01bc0-1cab-47b2-8168-b6db266c5939_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_bf222202-9335-479a-8e6a-dae9412956d4" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_c4c01bc0-1cab-47b2-8168-b6db266c5939" xlink:to="loc_srt_SegmentGeographicalDomain_bf222202-9335-479a-8e6a-dae9412956d4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_exch_GSXK_5cb57c10-12f6-48cd-8d5f-b472f541ad4a" xlink:href="https://xbrl.sec.gov/exch/2023/exch-2023.xsd#exch_GSXK"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_bf222202-9335-479a-8e6a-dae9412956d4" xlink:to="loc_exch_GSXK_5cb57c10-12f6-48cd-8d5f-b472f541ad4a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_DE_50d94d7c-b014-4181-bbe3-df177e5e184a" xlink:href="https://xbrl.sec.gov/country/2023/country-2023.xsd#country_DE"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_bf222202-9335-479a-8e6a-dae9412956d4" xlink:to="loc_country_DE_50d94d7c-b014-4181-bbe3-df177e5e184a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_JP_02246704-bfd1-402f-ae43-cb2722e38e12" xlink:href="https://xbrl.sec.gov/country/2023/country-2023.xsd#country_JP"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_bf222202-9335-479a-8e6a-dae9412956d4" xlink:to="loc_country_JP_02246704-bfd1-402f-ae43-cb2722e38e12" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_FR_b25bc419-552c-4fcf-89f8-8f2493402c85" xlink:href="https://xbrl.sec.gov/country/2023/country-2023.xsd#country_FR"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_bf222202-9335-479a-8e6a-dae9412956d4" xlink:to="loc_country_FR_b25bc419-552c-4fcf-89f8-8f2493402c85" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_36040107-92f5-477e-a7b3-34386e7ba4df" xlink:href="https://xbrl.sec.gov/country/2023/country-2023.xsd#country_US"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_bf222202-9335-479a-8e6a-dae9412956d4" xlink:to="loc_country_US_36040107-92f5-477e-a7b3-34386e7ba4df" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_OtherCountriesMember_2fb67c27-d187-47af-9886-0c061b928703" xlink:href="soun-20230930.xsd#soun_OtherCountriesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_bf222202-9335-479a-8e6a-dae9412956d4" xlink:to="loc_soun_OtherCountriesMember_2fb67c27-d187-47af-9886-0c061b928703" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/REVENUERECOGNITIONScheduleofrevenuerecognitionpatternDetails" xlink:type="simple" xlink:href="soun-20230930.xsd#REVENUERECOGNITIONScheduleofrevenuerecognitionpatternDetails"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/REVENUERECOGNITIONScheduleofrevenuerecognitionpatternDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_6570fbd7-1854-43cb-9ec0-f9ee0987b272" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_4a1ce935-5ab1-4b97-bde4-916c42fef137" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_6570fbd7-1854-43cb-9ec0-f9ee0987b272" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_4a1ce935-5ab1-4b97-bde4-916c42fef137" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_9c848ff9-a9bc-4e10-9e9d-a43781e8c7a2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_6570fbd7-1854-43cb-9ec0-f9ee0987b272" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_9c848ff9-a9bc-4e10-9e9d-a43781e8c7a2" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TimingOfTransferOfGoodOrServiceAxis_a96c3763-bba6-49af-972a-5eaca1c58fac" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TimingOfTransferOfGoodOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_9c848ff9-a9bc-4e10-9e9d-a43781e8c7a2" xlink:to="loc_us-gaap_TimingOfTransferOfGoodOrServiceAxis_a96c3763-bba6-49af-972a-5eaca1c58fac" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_a96c3763-bba6-49af-972a-5eaca1c58fac_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TimingOfTransferOfGoodOrServiceDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_TimingOfTransferOfGoodOrServiceAxis_a96c3763-bba6-49af-972a-5eaca1c58fac" xlink:to="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_a96c3763-bba6-49af-972a-5eaca1c58fac_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_a6bb8271-9256-4743-bde6-cdd03b336905" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TimingOfTransferOfGoodOrServiceDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_TimingOfTransferOfGoodOrServiceAxis_a96c3763-bba6-49af-972a-5eaca1c58fac" xlink:to="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_a6bb8271-9256-4743-bde6-cdd03b336905" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransferredOverTimeMember_a9f9311c-9216-484e-b3ea-d5f1220bdfb2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TransferredOverTimeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_a6bb8271-9256-4743-bde6-cdd03b336905" xlink:to="loc_us-gaap_TransferredOverTimeMember_a9f9311c-9216-484e-b3ea-d5f1220bdfb2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransferredAtPointInTimeMember_4b911574-ed93-4d71-974e-a263a2d5f99c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TransferredAtPointInTimeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_a6bb8271-9256-4743-bde6-cdd03b336905" xlink:to="loc_us-gaap_TransferredAtPointInTimeMember_4b911574-ed93-4d71-974e-a263a2d5f99c" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/REVENUERECOGNITIONScheduleofServiceDetails" xlink:type="simple" xlink:href="soun-20230930.xsd#REVENUERECOGNITIONScheduleofServiceDetails"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/REVENUERECOGNITIONScheduleofServiceDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_212d576e-7e10-40e0-ad59-a6073d1eb7bd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_452384d0-f286-4d52-8f50-2eb122e29799" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_212d576e-7e10-40e0-ad59-a6073d1eb7bd" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_452384d0-f286-4d52-8f50-2eb122e29799" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_6008694a-72a9-4754-bc25-1cbaffbdb456" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_212d576e-7e10-40e0-ad59-a6073d1eb7bd" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_6008694a-72a9-4754-bc25-1cbaffbdb456" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_31610449-7309-4be0-aff0-ff1d529eb1cf" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_6008694a-72a9-4754-bc25-1cbaffbdb456" xlink:to="loc_srt_ProductOrServiceAxis_31610449-7309-4be0-aff0-ff1d529eb1cf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_31610449-7309-4be0-aff0-ff1d529eb1cf_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_31610449-7309-4be0-aff0-ff1d529eb1cf" xlink:to="loc_srt_ProductsAndServicesDomain_31610449-7309-4be0-aff0-ff1d529eb1cf_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_f63ec5aa-f953-4bc3-8e59-bb234078d6b4" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_31610449-7309-4be0-aff0-ff1d529eb1cf" xlink:to="loc_srt_ProductsAndServicesDomain_f63ec5aa-f953-4bc3-8e59-bb234078d6b4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_ProductRoyaltiesMember_ce54a9a7-73be-466c-ae79-8bba42d76a0b" xlink:href="soun-20230930.xsd#soun_ProductRoyaltiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_f63ec5aa-f953-4bc3-8e59-bb234078d6b4" xlink:to="loc_soun_ProductRoyaltiesMember_ce54a9a7-73be-466c-ae79-8bba42d76a0b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_ServiceSubscriptionsMember_3782c5d5-2226-42d1-9324-88607ceb1410" xlink:href="soun-20230930.xsd#soun_ServiceSubscriptionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_f63ec5aa-f953-4bc3-8e59-bb234078d6b4" xlink:to="loc_soun_ServiceSubscriptionsMember_3782c5d5-2226-42d1-9324-88607ceb1410" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_MonetizationMember_272a5a3e-1cf6-45ad-bbf4-e4531bda9d29" xlink:href="soun-20230930.xsd#soun_MonetizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_f63ec5aa-f953-4bc3-8e59-bb234078d6b4" xlink:to="loc_soun_MonetizationMember_272a5a3e-1cf6-45ad-bbf4-e4531bda9d29" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/COMMITMENTSANDCONTINGENCIESNarrativesDetails" xlink:type="simple" xlink:href="soun-20230930.xsd#COMMITMENTSANDCONTINGENCIESNarrativesDetails"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/COMMITMENTSANDCONTINGENCIESNarrativesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesLineItems_2093956d-82f3-4363-84bd-3a41798dcbb3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LossContingenciesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted_fad81468-2236-45e9-87f2-ba1ea7e6a103" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_2093956d-82f3-4363-84bd-3a41798dcbb3" xlink:to="loc_us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted_fad81468-2236-45e9-87f2-ba1ea7e6a103" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermPurchaseCommitmentPeriod_3bba3b3d-b4d3-42c3-9151-570a6502245f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermPurchaseCommitmentPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_2093956d-82f3-4363-84bd-3a41798dcbb3" xlink:to="loc_us-gaap_LongtermPurchaseCommitmentPeriod_3bba3b3d-b4d3-42c3-9151-570a6502245f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyAccrualAtCarryingValue_5877e203-91f0-4c8e-be1b-51a0515a37c4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LossContingencyAccrualAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_2093956d-82f3-4363-84bd-3a41798dcbb3" xlink:to="loc_us-gaap_LossContingencyAccrualAtCarryingValue_5877e203-91f0-4c8e-be1b-51a0515a37c4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesTable_4641bfa9-ae8f-4cc4-8d73-88b8093f84f3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LossContingenciesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LossContingenciesLineItems_2093956d-82f3-4363-84bd-3a41798dcbb3" xlink:to="loc_us-gaap_LossContingenciesTable_4641bfa9-ae8f-4cc4-8d73-88b8093f84f3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_febe69b1-05a7-42f0-ba47-b61f4880697d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LossContingenciesByNatureOfContingencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LossContingenciesTable_4641bfa9-ae8f-4cc4-8d73-88b8093f84f3" xlink:to="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_febe69b1-05a7-42f0-ba47-b61f4880697d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyNatureDomain_febe69b1-05a7-42f0-ba47-b61f4880697d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LossContingencyNatureDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_febe69b1-05a7-42f0-ba47-b61f4880697d" xlink:to="loc_us-gaap_LossContingencyNatureDomain_febe69b1-05a7-42f0-ba47-b61f4880697d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyNatureDomain_a9c43b36-48fd-4309-8528-98e69c2d3f73" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LossContingencyNatureDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_febe69b1-05a7-42f0-ba47-b61f4880697d" xlink:to="loc_us-gaap_LossContingencyNatureDomain_a9c43b36-48fd-4309-8528-98e69c2d3f73" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_PossibleSalesTaxLiabilityMember_ef853eae-201d-41ca-9ee4-3aefaff9a3d6" xlink:href="soun-20230930.xsd#soun_PossibleSalesTaxLiabilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingencyNatureDomain_a9c43b36-48fd-4309-8528-98e69c2d3f73" xlink:to="loc_soun_PossibleSalesTaxLiabilityMember_ef853eae-201d-41ca-9ee4-3aefaff9a3d6" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/WARRANTSDetails" xlink:type="simple" xlink:href="soun-20230930.xsd#WARRANTSDetails"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/WARRANTSDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightLineItems_d61144bc-e13a-4235-b661-88cafa0f4c4a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight_6fd143c5-27df-4715-8ebd-50708e5ed2c1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_d61144bc-e13a-4235-b661-88cafa0f4c4a" xlink:to="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight_6fd143c5-27df-4715-8ebd-50708e5ed2c1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_9d170cad-fc0a-4d49-9b20-34d7294924cc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_d61144bc-e13a-4235-b661-88cafa0f4c4a" xlink:to="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_9d170cad-fc0a-4d49-9b20-34d7294924cc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesIssued_812d700f-4533-4376-b2be-ea5a16f88758" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_d61144bc-e13a-4235-b661-88cafa0f4c4a" xlink:to="loc_us-gaap_SharesIssued_812d700f-4533-4376-b2be-ea5a16f88758" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_ebedc659-bcc1-4d11-956b-e0afbeb8d4a2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_d61144bc-e13a-4235-b661-88cafa0f4c4a" xlink:to="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_ebedc659-bcc1-4d11-956b-e0afbeb8d4a2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_ClassOfWarrantsRightsExercisePeriodTerm_6b80b17d-4e6c-427b-9c1b-39d5c2e75010" xlink:href="soun-20230930.xsd#soun_ClassOfWarrantsRightsExercisePeriodTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_d61144bc-e13a-4235-b661-88cafa0f4c4a" xlink:to="loc_soun_ClassOfWarrantsRightsExercisePeriodTerm_6b80b17d-4e6c-427b-9c1b-39d5c2e75010" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantsNotSettleableInCashFairValueDisclosure_2f65434e-c096-499e-bc4d-25f53e3cfddc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WarrantsNotSettleableInCashFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_d61144bc-e13a-4235-b661-88cafa0f4c4a" xlink:to="loc_us-gaap_WarrantsNotSettleableInCashFairValueDisclosure_2f65434e-c096-499e-bc4d-25f53e3cfddc" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_ClassOfWarrantsRedemptionPricePerUnit_799d1435-63c9-4281-805b-b43412f0a724" xlink:href="soun-20230930.xsd#soun_ClassOfWarrantsRedemptionPricePerUnit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_d61144bc-e13a-4235-b661-88cafa0f4c4a" xlink:to="loc_soun_ClassOfWarrantsRedemptionPricePerUnit_799d1435-63c9-4281-805b-b43412f0a724" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_ClassOfWarrantsRedemptionNoticePeriod_7d5be53e-5d71-4b01-97de-589dcfd2b77a" xlink:href="soun-20230930.xsd#soun_ClassOfWarrantsRedemptionNoticePeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_d61144bc-e13a-4235-b661-88cafa0f4c4a" xlink:to="loc_soun_ClassOfWarrantsRedemptionNoticePeriod_7d5be53e-5d71-4b01-97de-589dcfd2b77a" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_ClassOfWarrantOrRightTriggerPrice_3334eefc-0a8f-475b-92b3-ce9b3e88d00b" xlink:href="soun-20230930.xsd#soun_ClassOfWarrantOrRightTriggerPrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_d61144bc-e13a-4235-b661-88cafa0f4c4a" xlink:to="loc_soun_ClassOfWarrantOrRightTriggerPrice_3334eefc-0a8f-475b-92b3-ce9b3e88d00b" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_NumberOfConsecutiveTradingDaysForDeterminingSharePrice_9eddeb94-628b-43e7-8ae2-50ec66ba8bc9" xlink:href="soun-20230930.xsd#soun_NumberOfConsecutiveTradingDaysForDeterminingSharePrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_d61144bc-e13a-4235-b661-88cafa0f4c4a" xlink:to="loc_soun_NumberOfConsecutiveTradingDaysForDeterminingSharePrice_9eddeb94-628b-43e7-8ae2-50ec66ba8bc9" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightOutstanding_3339be38-a533-49c7-9f81-273e2d6154c6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_d61144bc-e13a-4235-b661-88cafa0f4c4a" xlink:to="loc_us-gaap_ClassOfWarrantOrRightOutstanding_3339be38-a533-49c7-9f81-273e2d6154c6" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightTable_7228bf17-241e-47c5-a22c-cc3b578fad59" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_d61144bc-e13a-4235-b661-88cafa0f4c4a" xlink:to="loc_us-gaap_ClassOfWarrantOrRightTable_7228bf17-241e-47c5-a22c-cc3b578fad59" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_46ce8ac6-a5f3-48b7-baba-5057cef822b0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfWarrantOrRightTable_7228bf17-241e-47c5-a22c-cc3b578fad59" xlink:to="loc_us-gaap_DebtInstrumentAxis_46ce8ac6-a5f3-48b7-baba-5057cef822b0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_46ce8ac6-a5f3-48b7-baba-5057cef822b0_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_46ce8ac6-a5f3-48b7-baba-5057cef822b0" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_46ce8ac6-a5f3-48b7-baba-5057cef822b0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_ef35e061-8dd0-4019-96e8-85b9241f730a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_46ce8ac6-a5f3-48b7-baba-5057cef822b0" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_ef35e061-8dd0-4019-96e8-85b9241f730a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_SVBMarch2021NotesMember_69a0ffee-5958-4ee2-983f-265c07eef0b8" xlink:href="soun-20230930.xsd#soun_SVBMarch2021NotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_ef35e061-8dd0-4019-96e8-85b9241f730a" xlink:to="loc_soun_SVBMarch2021NotesMember_69a0ffee-5958-4ee2-983f-265c07eef0b8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_SCIJune2021NoteMember_97c6171c-d97c-4f0c-b59d-d8f1441b9394" xlink:href="soun-20230930.xsd#soun_SCIJune2021NoteMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_ef35e061-8dd0-4019-96e8-85b9241f730a" xlink:to="loc_soun_SCIJune2021NoteMember_97c6171c-d97c-4f0c-b59d-d8f1441b9394" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_f2e1e040-44ff-493c-adaf-21422fcd9655" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfWarrantOrRightTable_7228bf17-241e-47c5-a22c-cc3b578fad59" xlink:to="loc_us-gaap_StatementClassOfStockAxis_f2e1e040-44ff-493c-adaf-21422fcd9655" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_f2e1e040-44ff-493c-adaf-21422fcd9655_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_f2e1e040-44ff-493c-adaf-21422fcd9655" xlink:to="loc_us-gaap_ClassOfStockDomain_f2e1e040-44ff-493c-adaf-21422fcd9655_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_b925d3f1-f603-4d29-b61c-c018ae8c1a14" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_f2e1e040-44ff-493c-adaf-21422fcd9655" xlink:to="loc_us-gaap_ClassOfStockDomain_b925d3f1-f603-4d29-b61c-c018ae8c1a14" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_f0761371-a447-48cf-b49a-050ff4769d57" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_b925d3f1-f603-4d29-b61c-c018ae8c1a14" xlink:to="loc_us-gaap_CommonClassAMember_f0761371-a447-48cf-b49a-050ff4769d57" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_6480f9b9-b131-4f95-8863-e864b699824f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfWarrantOrRightTable_7228bf17-241e-47c5-a22c-cc3b578fad59" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_6480f9b9-b131-4f95-8863-e864b699824f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_6480f9b9-b131-4f95-8863-e864b699824f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_6480f9b9-b131-4f95-8863-e864b699824f" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_6480f9b9-b131-4f95-8863-e864b699824f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_273c8929-9c02-4fdd-8ca6-ea719bb23d26" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_6480f9b9-b131-4f95-8863-e864b699824f" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_273c8929-9c02-4fdd-8ca6-ea719bb23d26" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_TermLoanWarrantsMember_b14701b8-d9b4-4360-825e-99e773cce85e" xlink:href="soun-20230930.xsd#soun_TermLoanWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_273c8929-9c02-4fdd-8ca6-ea719bb23d26" xlink:to="loc_soun_TermLoanWarrantsMember_b14701b8-d9b4-4360-825e-99e773cce85e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_PublicWarrantsMember_99ede236-454b-4620-abd4-bd398c5a8098" xlink:href="soun-20230930.xsd#soun_PublicWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_273c8929-9c02-4fdd-8ca6-ea719bb23d26" xlink:to="loc_soun_PublicWarrantsMember_99ede236-454b-4620-abd4-bd398c5a8098" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_PrivateWarrantsMember_337ec92f-66ab-44a6-ad65-560d117482ee" xlink:href="soun-20230930.xsd#soun_PrivateWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_273c8929-9c02-4fdd-8ca6-ea719bb23d26" xlink:to="loc_soun_PrivateWarrantsMember_337ec92f-66ab-44a6-ad65-560d117482ee" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_a2978382-d502-4923-aba1-19f5d70d452e" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfWarrantOrRightTable_7228bf17-241e-47c5-a22c-cc3b578fad59" xlink:to="loc_dei_LegalEntityAxis_a2978382-d502-4923-aba1-19f5d70d452e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_a2978382-d502-4923-aba1-19f5d70d452e_default" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_a2978382-d502-4923-aba1-19f5d70d452e" xlink:to="loc_dei_EntityDomain_a2978382-d502-4923-aba1-19f5d70d452e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_59229a7d-bc44-493a-9a15-c215a3373c15" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_a2978382-d502-4923-aba1-19f5d70d452e" xlink:to="loc_dei_EntityDomain_59229a7d-bc44-493a-9a15-c215a3373c15" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_ArchimedesTechSPACPartnersCoATSPMember_64b5afb6-eed4-4aef-8665-917f223070a4" xlink:href="soun-20230930.xsd#soun_ArchimedesTechSPACPartnersCoATSPMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_59229a7d-bc44-493a-9a15-c215a3373c15" xlink:to="loc_soun_ArchimedesTechSPACPartnersCoATSPMember_64b5afb6-eed4-4aef-8665-917f223070a4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_TriggeringEventsAxis_47dafa2b-ab58-41ff-81ba-d621ea958478" xlink:href="soun-20230930.xsd#soun_TriggeringEventsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfWarrantOrRightTable_7228bf17-241e-47c5-a22c-cc3b578fad59" xlink:to="loc_soun_TriggeringEventsAxis_47dafa2b-ab58-41ff-81ba-d621ea958478" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_TriggeringEventsDomain_47dafa2b-ab58-41ff-81ba-d621ea958478_default" xlink:href="soun-20230930.xsd#soun_TriggeringEventsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_soun_TriggeringEventsAxis_47dafa2b-ab58-41ff-81ba-d621ea958478" xlink:to="loc_soun_TriggeringEventsDomain_47dafa2b-ab58-41ff-81ba-d621ea958478_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_TriggeringEventsDomain_583a582c-60c1-44a7-b5ee-d055b2a92424" xlink:href="soun-20230930.xsd#soun_TriggeringEventsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_soun_TriggeringEventsAxis_47dafa2b-ab58-41ff-81ba-d621ea958478" xlink:to="loc_soun_TriggeringEventsDomain_583a582c-60c1-44a7-b5ee-d055b2a92424" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_SharePriceEqualOrExceedsEighteenDollarsMember_d47ffa7e-f5ef-4f79-b356-6ddbfa923ad6" xlink:href="soun-20230930.xsd#soun_SharePriceEqualOrExceedsEighteenDollarsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_soun_TriggeringEventsDomain_583a582c-60c1-44a7-b5ee-d055b2a92424" xlink:to="loc_soun_SharePriceEqualOrExceedsEighteenDollarsMember_d47ffa7e-f5ef-4f79-b356-6ddbfa923ad6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_12c4a4a1-5227-4e27-bc9c-25ad78d4fe3e" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfWarrantOrRightTable_7228bf17-241e-47c5-a22c-cc3b578fad59" xlink:to="loc_srt_RangeAxis_12c4a4a1-5227-4e27-bc9c-25ad78d4fe3e" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_12c4a4a1-5227-4e27-bc9c-25ad78d4fe3e_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_12c4a4a1-5227-4e27-bc9c-25ad78d4fe3e" xlink:to="loc_srt_RangeMember_12c4a4a1-5227-4e27-bc9c-25ad78d4fe3e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_0fed75b7-5823-4bd8-bf77-cc333473d8d2" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_12c4a4a1-5227-4e27-bc9c-25ad78d4fe3e" xlink:to="loc_srt_RangeMember_0fed75b7-5823-4bd8-bf77-cc333473d8d2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_79abf5f0-c6f6-4549-9b47-8efe1751b050" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_0fed75b7-5823-4bd8-bf77-cc333473d8d2" xlink:to="loc_srt_MinimumMember_79abf5f0-c6f6-4549-9b47-8efe1751b050" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_02eb59d8-4a44-4768-8ab7-be08f0bf2be3" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_0fed75b7-5823-4bd8-bf77-cc333473d8d2" xlink:to="loc_srt_MaximumMember_02eb59d8-4a44-4768-8ab7-be08f0bf2be3" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/LONGTERMDEBTNarrativesDetails" xlink:type="simple" xlink:href="soun-20230930.xsd#LONGTERMDEBTNarrativesDetails"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/LONGTERMDEBTNarrativesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_c6aaa871-07fa-4ed5-bb1f-a5df90171fda" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfDebt_318ad0c6-ca09-418e-a309-f7b4bd00f98a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromIssuanceOfDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6aaa871-07fa-4ed5-bb1f-a5df90171fda" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfDebt_318ad0c6-ca09-418e-a309-f7b4bd00f98a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_af77383a-fa63-4182-acfd-9dc9b804de33" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6aaa871-07fa-4ed5-bb1f-a5df90171fda" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_af77383a-fa63-4182-acfd-9dc9b804de33" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtConversionConvertedInstrumentAmount1_e5e799a4-289f-4f07-8953-13811d32db9b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtConversionConvertedInstrumentAmount1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6aaa871-07fa-4ed5-bb1f-a5df90171fda" xlink:to="loc_us-gaap_DebtConversionConvertedInstrumentAmount1_e5e799a4-289f-4f07-8953-13811d32db9b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_DebtConversionConvertedInstrumentInterestAmountConverted_33b6bdba-58d1-41b9-903d-a9e3c0552816" xlink:href="soun-20230930.xsd#soun_DebtConversionConvertedInstrumentInterestAmountConverted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6aaa871-07fa-4ed5-bb1f-a5df90171fda" xlink:to="loc_soun_DebtConversionConvertedInstrumentInterestAmountConverted_33b6bdba-58d1-41b9-903d-a9e3c0552816" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits_8e03892c-8ccb-4b55-a301-cdcb68360c9f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6aaa871-07fa-4ed5-bb1f-a5df90171fda" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits_8e03892c-8ccb-4b55-a301-cdcb68360c9f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WriteOffOfDeferredDebtIssuanceCost_3d2b6085-5e01-4218-a5f8-02ac4743394c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WriteOffOfDeferredDebtIssuanceCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6aaa871-07fa-4ed5-bb1f-a5df90171fda" xlink:to="loc_us-gaap_WriteOffOfDeferredDebtIssuanceCost_3d2b6085-5e01-4218-a5f8-02ac4743394c" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_WriteOffOfDerivativeLiability_f1e8e238-49f6-4553-becc-60cbe2a02f3d" xlink:href="soun-20230930.xsd#soun_WriteOffOfDerivativeLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6aaa871-07fa-4ed5-bb1f-a5df90171fda" xlink:to="loc_soun_WriteOffOfDerivativeLiability_f1e8e238-49f6-4553-becc-60cbe2a02f3d" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherShortTermBorrowings_5e8509bc-0a97-4711-801a-99452d2ca785" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherShortTermBorrowings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6aaa871-07fa-4ed5-bb1f-a5df90171fda" xlink:to="loc_us-gaap_OtherShortTermBorrowings_5e8509bc-0a97-4711-801a-99452d2ca785" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtPercentageBearingVariableInterestRate_699c8c0f-bcb8-4063-96c5-97012cca4346" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebtPercentageBearingVariableInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6aaa871-07fa-4ed5-bb1f-a5df90171fda" xlink:to="loc_us-gaap_LongTermDebtPercentageBearingVariableInterestRate_699c8c0f-bcb8-4063-96c5-97012cca4346" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_d5165456-2cce-41d9-8742-63b96a3198cd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6aaa871-07fa-4ed5-bb1f-a5df90171fda" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_d5165456-2cce-41d9-8742-63b96a3198cd" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebt_06470f15-3084-45ed-af0b-07e117933fce" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InterestExpenseDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6aaa871-07fa-4ed5-bb1f-a5df90171fda" xlink:to="loc_us-gaap_InterestExpenseDebt_06470f15-3084-45ed-af0b-07e117933fce" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ExtinguishmentOfDebtAmount_bdc04ae3-47f3-4216-862f-a20cf876442e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ExtinguishmentOfDebtAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6aaa871-07fa-4ed5-bb1f-a5df90171fda" xlink:to="loc_us-gaap_ExtinguishmentOfDebtAmount_bdc04ae3-47f3-4216-862f-a20cf876442e" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfDebt_7673f0ea-1176-48d9-8fb7-be8fe9afa4f2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RepaymentsOfDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6aaa871-07fa-4ed5-bb1f-a5df90171fda" xlink:to="loc_us-gaap_RepaymentsOfDebt_7673f0ea-1176-48d9-8fb7-be8fe9afa4f2" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedPremium_5238c543-ba86-4b98-a209-291feb4a321f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentUnamortizedPremium"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6aaa871-07fa-4ed5-bb1f-a5df90171fda" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedPremium_5238c543-ba86-4b98-a209-291feb4a321f" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestPayableCurrentAndNoncurrent_737f59d8-ee42-4de5-bfbc-6357b92e0f8b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InterestPayableCurrentAndNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6aaa871-07fa-4ed5-bb1f-a5df90171fda" xlink:to="loc_us-gaap_InterestPayableCurrentAndNoncurrent_737f59d8-ee42-4de5-bfbc-6357b92e0f8b" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_f0480fee-3445-432c-af05-be23a6661146" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6aaa871-07fa-4ed5-bb1f-a5df90171fda" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_f0480fee-3445-432c-af05-be23a6661146" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_LineOfCreditFacilityIncrementalExtensionAmount_2dde8be9-9594-42e6-939c-af5c8bf25249" xlink:href="soun-20230930.xsd#soun_LineOfCreditFacilityIncrementalExtensionAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6aaa871-07fa-4ed5-bb1f-a5df90171fda" xlink:to="loc_soun_LineOfCreditFacilityIncrementalExtensionAmount_2dde8be9-9594-42e6-939c-af5c8bf25249" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_429d2f44-d6e3-47a6-99ae-8b9da69851ac" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6aaa871-07fa-4ed5-bb1f-a5df90171fda" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_429d2f44-d6e3-47a6-99ae-8b9da69851ac" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromLinesOfCredit_bd3bf73a-898a-4544-aa22-1ccb0fc6fc67" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromLinesOfCredit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6aaa871-07fa-4ed5-bb1f-a5df90171fda" xlink:to="loc_us-gaap_ProceedsFromLinesOfCredit_bd3bf73a-898a-4544-aa22-1ccb0fc6fc67" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpense_e68da177-7545-4c2b-8e33-323f8010c93e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InterestExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6aaa871-07fa-4ed5-bb1f-a5df90171fda" xlink:to="loc_us-gaap_InterestExpense_e68da177-7545-4c2b-8e33-323f8010c93e" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_LineOfCreditFacilityAccordionFeatureAdditionalBorrowingCapacity_1a940dd8-b683-43c2-962a-31fcb8207a1b" xlink:href="soun-20230930.xsd#soun_LineOfCreditFacilityAccordionFeatureAdditionalBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6aaa871-07fa-4ed5-bb1f-a5df90171fda" xlink:to="loc_soun_LineOfCreditFacilityAccordionFeatureAdditionalBorrowingCapacity_1a940dd8-b683-43c2-962a-31fcb8207a1b" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_DebtInstrumentCashPremiumRepaymentPercentageOfDebtRequiredToBePaid_37ff9a59-a3fe-42a2-b7f9-6eedf28d2462" xlink:href="soun-20230930.xsd#soun_DebtInstrumentCashPremiumRepaymentPercentageOfDebtRequiredToBePaid"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6aaa871-07fa-4ed5-bb1f-a5df90171fda" xlink:to="loc_soun_DebtInstrumentCashPremiumRepaymentPercentageOfDebtRequiredToBePaid_37ff9a59-a3fe-42a2-b7f9-6eedf28d2462" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_f19cb121-12cb-42bc-b3ce-43dd8e699a85" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentInterestRateEffectivePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6aaa871-07fa-4ed5-bb1f-a5df90171fda" xlink:to="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_f19cb121-12cb-42bc-b3ce-43dd8e699a85" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_DebtInstrumentPrepaymentAdditionalRequiredPaymentPercentageInExcessOfCashPremiums_d940e7db-0431-495f-a2fd-017b564a5d8c" xlink:href="soun-20230930.xsd#soun_DebtInstrumentPrepaymentAdditionalRequiredPaymentPercentageInExcessOfCashPremiums"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6aaa871-07fa-4ed5-bb1f-a5df90171fda" xlink:to="loc_soun_DebtInstrumentPrepaymentAdditionalRequiredPaymentPercentageInExcessOfCashPremiums_d940e7db-0431-495f-a2fd-017b564a5d8c" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_d7a2a70f-e8a7-45da-b1a2-0189c4c4bd00" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_c6aaa871-07fa-4ed5-bb1f-a5df90171fda" xlink:to="loc_us-gaap_DebtInstrumentTable_d7a2a70f-e8a7-45da-b1a2-0189c4c4bd00" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_7494709c-ad1f-400e-a812-dec3bb0612d8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_d7a2a70f-e8a7-45da-b1a2-0189c4c4bd00" xlink:to="loc_us-gaap_DebtInstrumentAxis_7494709c-ad1f-400e-a812-dec3bb0612d8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_7494709c-ad1f-400e-a812-dec3bb0612d8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_7494709c-ad1f-400e-a812-dec3bb0612d8" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_7494709c-ad1f-400e-a812-dec3bb0612d8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_b2299ceb-3962-4f4f-9f22-0b3eae3a9b01" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_7494709c-ad1f-400e-a812-dec3bb0612d8" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_b2299ceb-3962-4f4f-9f22-0b3eae3a9b01" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_SNAPJune2020NoteMember_270b82a5-cbf9-4002-8c60-6efd511c9645" xlink:href="soun-20230930.xsd#soun_SNAPJune2020NoteMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_b2299ceb-3962-4f4f-9f22-0b3eae3a9b01" xlink:to="loc_soun_SNAPJune2020NoteMember_270b82a5-cbf9-4002-8c60-6efd511c9645" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_SVBMarch2021NotesMember_177a8789-401d-49c5-a23d-b19833b41be8" xlink:href="soun-20230930.xsd#soun_SVBMarch2021NotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_b2299ceb-3962-4f4f-9f22-0b3eae3a9b01" xlink:to="loc_soun_SVBMarch2021NotesMember_177a8789-401d-49c5-a23d-b19833b41be8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_SCIJune2021NoteMember_20edfa13-c37d-4432-a31e-6f6eaee46723" xlink:href="soun-20230930.xsd#soun_SCIJune2021NoteMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_b2299ceb-3962-4f4f-9f22-0b3eae3a9b01" xlink:to="loc_soun_SCIJune2021NoteMember_20edfa13-c37d-4432-a31e-6f6eaee46723" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_TermLoanMember_13ef4970-631d-49b1-b3ca-5cdb897a5408" xlink:href="soun-20230930.xsd#soun_TermLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_b2299ceb-3962-4f4f-9f22-0b3eae3a9b01" xlink:to="loc_soun_TermLoanMember_13ef4970-631d-49b1-b3ca-5cdb897a5408" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_3ed142b5-6c40-4aec-93f2-67e84d3b1535" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_d7a2a70f-e8a7-45da-b1a2-0189c4c4bd00" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_3ed142b5-6c40-4aec-93f2-67e84d3b1535" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_3ed142b5-6c40-4aec-93f2-67e84d3b1535_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_3ed142b5-6c40-4aec-93f2-67e84d3b1535" xlink:to="loc_us-gaap_EquityComponentDomain_3ed142b5-6c40-4aec-93f2-67e84d3b1535_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_63154d35-1ebb-4157-944f-b77b5d1830c1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_3ed142b5-6c40-4aec-93f2-67e84d3b1535" xlink:to="loc_us-gaap_EquityComponentDomain_63154d35-1ebb-4157-944f-b77b5d1830c1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_351854cc-971a-43f5-95c9-935b403aa321" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_63154d35-1ebb-4157-944f-b77b5d1830c1" xlink:to="loc_us-gaap_CommonStockMember_351854cc-971a-43f5-95c9-935b403aa321" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateAxis_9ae0fd45-79c5-4a12-b7e1-a88d3f976edc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VariableRateAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_d7a2a70f-e8a7-45da-b1a2-0189c4c4bd00" xlink:to="loc_us-gaap_VariableRateAxis_9ae0fd45-79c5-4a12-b7e1-a88d3f976edc" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_9ae0fd45-79c5-4a12-b7e1-a88d3f976edc_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VariableRateAxis_9ae0fd45-79c5-4a12-b7e1-a88d3f976edc" xlink:to="loc_us-gaap_VariableRateDomain_9ae0fd45-79c5-4a12-b7e1-a88d3f976edc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_94d998e3-112c-460e-bb6c-ba8882199c30" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VariableRateAxis_9ae0fd45-79c5-4a12-b7e1-a88d3f976edc" xlink:to="loc_us-gaap_VariableRateDomain_94d998e3-112c-460e-bb6c-ba8882199c30" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrimeRateMember_2633a227-2885-445e-8ecd-ad9ee68c44f5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PrimeRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_94d998e3-112c-460e-bb6c-ba8882199c30" xlink:to="loc_us-gaap_PrimeRateMember_2633a227-2885-445e-8ecd-ad9ee68c44f5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_SecuredOvernightFinancingRateMember_6c4532cf-bf05-4334-bf96-00da8f6da915" xlink:href="soun-20230930.xsd#soun_SecuredOvernightFinancingRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_94d998e3-112c-460e-bb6c-ba8882199c30" xlink:to="loc_soun_SecuredOvernightFinancingRateMember_6c4532cf-bf05-4334-bf96-00da8f6da915" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FederalFundsEffectiveSwapRateMember_c0bd751a-60aa-4ddc-a34f-1d6928f90a80" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FederalFundsEffectiveSwapRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_94d998e3-112c-460e-bb6c-ba8882199c30" xlink:to="loc_us-gaap_FederalFundsEffectiveSwapRateMember_c0bd751a-60aa-4ddc-a34f-1d6928f90a80" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_AdjustableRateMember_62940d31-d4cd-4743-958d-5c7e2d6d141a" xlink:href="soun-20230930.xsd#soun_AdjustableRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_94d998e3-112c-460e-bb6c-ba8882199c30" xlink:to="loc_soun_AdjustableRateMember_62940d31-d4cd-4743-958d-5c7e2d6d141a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_AlternateBaseRateMember_8d7444c3-f73d-4bfb-a3c6-4e3f8c375005" xlink:href="soun-20230930.xsd#soun_AlternateBaseRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_94d998e3-112c-460e-bb6c-ba8882199c30" xlink:to="loc_soun_AlternateBaseRateMember_8d7444c3-f73d-4bfb-a3c6-4e3f8c375005" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UsTreasuryUstInterestRateMember_3319d2e0-85af-4c4b-8ebc-04897d312d4c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_UsTreasuryUstInterestRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_94d998e3-112c-460e-bb6c-ba8882199c30" xlink:to="loc_us-gaap_UsTreasuryUstInterestRateMember_3319d2e0-85af-4c4b-8ebc-04897d312d4c" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_d30457b4-f5e6-4b72-a777-984c55073548" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_d7a2a70f-e8a7-45da-b1a2-0189c4c4bd00" xlink:to="loc_us-gaap_CreditFacilityAxis_d30457b4-f5e6-4b72-a777-984c55073548" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_d30457b4-f5e6-4b72-a777-984c55073548_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_d30457b4-f5e6-4b72-a777-984c55073548" xlink:to="loc_us-gaap_CreditFacilityDomain_d30457b4-f5e6-4b72-a777-984c55073548_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_62dfe943-db08-4058-9dbe-ada73d2cd752" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_d30457b4-f5e6-4b72-a777-984c55073548" xlink:to="loc_us-gaap_CreditFacilityDomain_62dfe943-db08-4058-9dbe-ada73d2cd752" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_cf777a72-99c6-45ed-b748-2afa8d6322fd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SecuredDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_62dfe943-db08-4058-9dbe-ada73d2cd752" xlink:to="loc_us-gaap_SecuredDebtMember_cf777a72-99c6-45ed-b748-2afa8d6322fd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_DebtInstrumentCashPremiumRepaymentsPeriodAxis_64309a9c-e110-4937-b4ff-69f222c8ccbf" xlink:href="soun-20230930.xsd#soun_DebtInstrumentCashPremiumRepaymentsPeriodAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_d7a2a70f-e8a7-45da-b1a2-0189c4c4bd00" xlink:to="loc_soun_DebtInstrumentCashPremiumRepaymentsPeriodAxis_64309a9c-e110-4937-b4ff-69f222c8ccbf" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_DebtInstrumentCashPremiumRepaymentsPeriodDomain_64309a9c-e110-4937-b4ff-69f222c8ccbf_default" xlink:href="soun-20230930.xsd#soun_DebtInstrumentCashPremiumRepaymentsPeriodDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_soun_DebtInstrumentCashPremiumRepaymentsPeriodAxis_64309a9c-e110-4937-b4ff-69f222c8ccbf" xlink:to="loc_soun_DebtInstrumentCashPremiumRepaymentsPeriodDomain_64309a9c-e110-4937-b4ff-69f222c8ccbf_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_DebtInstrumentCashPremiumRepaymentsPeriodDomain_fa80cb4c-dafa-45f0-9ff1-8dd7305e6ffb" xlink:href="soun-20230930.xsd#soun_DebtInstrumentCashPremiumRepaymentsPeriodDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_soun_DebtInstrumentCashPremiumRepaymentsPeriodAxis_64309a9c-e110-4937-b4ff-69f222c8ccbf" xlink:to="loc_soun_DebtInstrumentCashPremiumRepaymentsPeriodDomain_fa80cb4c-dafa-45f0-9ff1-8dd7305e6ffb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_DebtInstrumentCashPremiumRepaymentsPeriodOneMember_26cecb4d-76b4-4fdf-a83d-36fb2e4681cd" xlink:href="soun-20230930.xsd#soun_DebtInstrumentCashPremiumRepaymentsPeriodOneMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_soun_DebtInstrumentCashPremiumRepaymentsPeriodDomain_fa80cb4c-dafa-45f0-9ff1-8dd7305e6ffb" xlink:to="loc_soun_DebtInstrumentCashPremiumRepaymentsPeriodOneMember_26cecb4d-76b4-4fdf-a83d-36fb2e4681cd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_DebtInstrumentCashPremiumRepaymentsPeriodThreeMember_d955b6c0-3ba8-438d-979a-a88ca4f909a1" xlink:href="soun-20230930.xsd#soun_DebtInstrumentCashPremiumRepaymentsPeriodThreeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_soun_DebtInstrumentCashPremiumRepaymentsPeriodDomain_fa80cb4c-dafa-45f0-9ff1-8dd7305e6ffb" xlink:to="loc_soun_DebtInstrumentCashPremiumRepaymentsPeriodThreeMember_d955b6c0-3ba8-438d-979a-a88ca4f909a1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_2006bb35-7fd6-4fc2-b253-ad8d0899cfc7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_d7a2a70f-e8a7-45da-b1a2-0189c4c4bd00" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_2006bb35-7fd6-4fc2-b253-ad8d0899cfc7" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_2006bb35-7fd6-4fc2-b253-ad8d0899cfc7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_2006bb35-7fd6-4fc2-b253-ad8d0899cfc7" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_2006bb35-7fd6-4fc2-b253-ad8d0899cfc7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_224c15e1-ce3d-4391-9298-5fd1f3d041bc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_2006bb35-7fd6-4fc2-b253-ad8d0899cfc7" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_224c15e1-ce3d-4391-9298-5fd1f3d041bc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesPayableOtherPayablesMember_dfdf59f1-2b2b-419e-945b-82f0fc33f5cf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NotesPayableOtherPayablesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_224c15e1-ce3d-4391-9298-5fd1f3d041bc" xlink:to="loc_us-gaap_NotesPayableOtherPayablesMember_dfdf59f1-2b2b-419e-945b-82f0fc33f5cf" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/LONGTERMDEBTScheduleofconvertiblenotesdebtbalancesDetails" xlink:type="simple" xlink:href="soun-20230930.xsd#LONGTERMDEBTScheduleofconvertiblenotesdebtbalancesDetails"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/LONGTERMDEBTScheduleofconvertiblenotesdebtbalancesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_aa9ec0a1-60d5-4105-a863-3476ba3ecbae" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_14e82813-96e1-4aef-a282-03df19ed44f5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_aa9ec0a1-60d5-4105-a863-3476ba3ecbae" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_14e82813-96e1-4aef-a282-03df19ed44f5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_10c19816-2348-4899-aeb6-5f55e3c75f78" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_aa9ec0a1-60d5-4105-a863-3476ba3ecbae" xlink:to="loc_us-gaap_LongTermDebtCurrent_10c19816-2348-4899-aeb6-5f55e3c75f78" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_3669e888-0e84-467d-ab82-744209e9fe84" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_aa9ec0a1-60d5-4105-a863-3476ba3ecbae" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_3669e888-0e84-467d-ab82-744209e9fe84" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_ff5465a0-4579-418e-9753-ac009b5c182e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_aa9ec0a1-60d5-4105-a863-3476ba3ecbae" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_ff5465a0-4579-418e-9753-ac009b5c182e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_76b34794-d01a-41c2-855f-e8a085331fc3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_aa9ec0a1-60d5-4105-a863-3476ba3ecbae" xlink:to="loc_us-gaap_DebtInstrumentTable_76b34794-d01a-41c2-855f-e8a085331fc3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_620dc20e-3dc3-4627-ab8a-694f582a5fb9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_76b34794-d01a-41c2-855f-e8a085331fc3" xlink:to="loc_us-gaap_CreditFacilityAxis_620dc20e-3dc3-4627-ab8a-694f582a5fb9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_620dc20e-3dc3-4627-ab8a-694f582a5fb9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_620dc20e-3dc3-4627-ab8a-694f582a5fb9" xlink:to="loc_us-gaap_CreditFacilityDomain_620dc20e-3dc3-4627-ab8a-694f582a5fb9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_c57439f3-7c18-4974-87b8-e61757f19965" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_620dc20e-3dc3-4627-ab8a-694f582a5fb9" xlink:to="loc_us-gaap_CreditFacilityDomain_c57439f3-7c18-4974-87b8-e61757f19965" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_d17e0441-15e4-48f4-ba5a-f956afe05e21" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SecuredDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_c57439f3-7c18-4974-87b8-e61757f19965" xlink:to="loc_us-gaap_SecuredDebtMember_d17e0441-15e4-48f4-ba5a-f956afe05e21" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_9391f816-2fea-44c7-88d7-c6878f9aa52c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_76b34794-d01a-41c2-855f-e8a085331fc3" xlink:to="loc_us-gaap_DebtInstrumentAxis_9391f816-2fea-44c7-88d7-c6878f9aa52c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_9391f816-2fea-44c7-88d7-c6878f9aa52c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_9391f816-2fea-44c7-88d7-c6878f9aa52c" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_9391f816-2fea-44c7-88d7-c6878f9aa52c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_7269fa29-ea83-4832-ad3b-b7bb7a0b400a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_9391f816-2fea-44c7-88d7-c6878f9aa52c" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_7269fa29-ea83-4832-ad3b-b7bb7a0b400a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_TermLoanMember_0d0436cc-7d65-4061-a03e-16f723c616a8" xlink:href="soun-20230930.xsd#soun_TermLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_7269fa29-ea83-4832-ad3b-b7bb7a0b400a" xlink:to="loc_soun_TermLoanMember_0d0436cc-7d65-4061-a03e-16f723c616a8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_SVBMarch2021NotesMember_e2d2008f-b943-443e-b69b-0ad0e5d7319b" xlink:href="soun-20230930.xsd#soun_SVBMarch2021NotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_7269fa29-ea83-4832-ad3b-b7bb7a0b400a" xlink:to="loc_soun_SVBMarch2021NotesMember_e2d2008f-b943-443e-b69b-0ad0e5d7319b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_SCIJune2021NoteMember_bef3a498-44dd-4e31-b095-863d7987105d" xlink:href="soun-20230930.xsd#soun_SCIJune2021NoteMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_7269fa29-ea83-4832-ad3b-b7bb7a0b400a" xlink:to="loc_soun_SCIJune2021NoteMember_bef3a498-44dd-4e31-b095-863d7987105d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_176bd449-bb4c-40ca-b39f-9046a2afe4b4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_76b34794-d01a-41c2-855f-e8a085331fc3" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_176bd449-bb4c-40ca-b39f-9046a2afe4b4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_176bd449-bb4c-40ca-b39f-9046a2afe4b4_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_176bd449-bb4c-40ca-b39f-9046a2afe4b4" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_176bd449-bb4c-40ca-b39f-9046a2afe4b4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_008622f7-5285-42bd-937c-28460f6c79d8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_176bd449-bb4c-40ca-b39f-9046a2afe4b4" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_008622f7-5285-42bd-937c-28460f6c79d8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesPayableOtherPayablesMember_b3f5b5c4-6a82-44ba-8604-6b444d4fc03c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NotesPayableOtherPayablesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_008622f7-5285-42bd-937c-28460f6c79d8" xlink:to="loc_us-gaap_NotesPayableOtherPayablesMember_b3f5b5c4-6a82-44ba-8604-6b444d4fc03c" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/PREFERREDSTOCKScheduleofpreferredstockauthorizedissuedandoutstandingDetails" xlink:type="simple" xlink:href="soun-20230930.xsd#PREFERREDSTOCKScheduleofpreferredstockauthorizedissuedandoutstandingDetails"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/PREFERREDSTOCKScheduleofpreferredstockauthorizedissuedandoutstandingDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredUnitsLineItems_77c03d28-28c6-47e6-9b9c-1e8984a6ba0f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredUnitsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_0d20b8bb-e99c-4d35-bb2c-4af670f599ad" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PreferredUnitsLineItems_77c03d28-28c6-47e6-9b9c-1e8984a6ba0f" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_0d20b8bb-e99c-4d35-bb2c-4af670f599ad" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesIssued_3cb92151-0308-4869-9b1a-817c406e7d3b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockSharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PreferredUnitsLineItems_77c03d28-28c6-47e6-9b9c-1e8984a6ba0f" xlink:to="loc_us-gaap_PreferredStockSharesIssued_3cb92151-0308-4869-9b1a-817c406e7d3b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockLiquidationPreferenceValue_4a61ead3-b1e0-44f8-9c16-1ad7f630fc6c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockLiquidationPreferenceValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PreferredUnitsLineItems_77c03d28-28c6-47e6-9b9c-1e8984a6ba0f" xlink:to="loc_us-gaap_PreferredStockLiquidationPreferenceValue_4a61ead3-b1e0-44f8-9c16-1ad7f630fc6c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValueOutstanding_fc6774a9-d86c-4c13-aa0a-c9c7cd0bb970" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockValueOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PreferredUnitsLineItems_77c03d28-28c6-47e6-9b9c-1e8984a6ba0f" xlink:to="loc_us-gaap_PreferredStockValueOutstanding_fc6774a9-d86c-4c13-aa0a-c9c7cd0bb970" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPreferredUnitsTable_42cb70b8-9910-4db5-92a6-1b21b2730b28" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfPreferredUnitsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PreferredUnitsLineItems_77c03d28-28c6-47e6-9b9c-1e8984a6ba0f" xlink:to="loc_us-gaap_ScheduleOfPreferredUnitsTable_42cb70b8-9910-4db5-92a6-1b21b2730b28" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_4e3ccad6-b957-4389-9388-a0f70743434a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPreferredUnitsTable_42cb70b8-9910-4db5-92a6-1b21b2730b28" xlink:to="loc_us-gaap_StatementClassOfStockAxis_4e3ccad6-b957-4389-9388-a0f70743434a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_4e3ccad6-b957-4389-9388-a0f70743434a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_4e3ccad6-b957-4389-9388-a0f70743434a" xlink:to="loc_us-gaap_ClassOfStockDomain_4e3ccad6-b957-4389-9388-a0f70743434a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_ba5aa06e-0a78-456a-9df4-cc81e175858a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_4e3ccad6-b957-4389-9388-a0f70743434a" xlink:to="loc_us-gaap_ClassOfStockDomain_ba5aa06e-0a78-456a-9df4-cc81e175858a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeriesAPreferredStockMember_2fbdc4f3-193b-4975-a17c-30174c197ba6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SeriesAPreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_ba5aa06e-0a78-456a-9df4-cc81e175858a" xlink:to="loc_us-gaap_SeriesAPreferredStockMember_2fbdc4f3-193b-4975-a17c-30174c197ba6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeriesBPreferredStockMember_1c753202-9129-4256-aa51-32c56c2ccd72" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SeriesBPreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_ba5aa06e-0a78-456a-9df4-cc81e175858a" xlink:to="loc_us-gaap_SeriesBPreferredStockMember_1c753202-9129-4256-aa51-32c56c2ccd72" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeriesCPreferredStockMember_16c65504-9467-40f7-93ac-3e7e011b19df" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SeriesCPreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_ba5aa06e-0a78-456a-9df4-cc81e175858a" xlink:to="loc_us-gaap_SeriesCPreferredStockMember_16c65504-9467-40f7-93ac-3e7e011b19df" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_SeriesC1PreferredStockMember_1ab0325a-a289-4bab-a170-2060a110f223" xlink:href="soun-20230930.xsd#soun_SeriesC1PreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_ba5aa06e-0a78-456a-9df4-cc81e175858a" xlink:to="loc_soun_SeriesC1PreferredStockMember_1ab0325a-a289-4bab-a170-2060a110f223" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeriesDPreferredStockMember_10906855-35b0-4ca2-9e51-a047eef4ab82" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SeriesDPreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_ba5aa06e-0a78-456a-9df4-cc81e175858a" xlink:to="loc_us-gaap_SeriesDPreferredStockMember_10906855-35b0-4ca2-9e51-a047eef4ab82" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_SeriesD1PreferredStockMember_db823416-af5b-4ca0-8c4c-ee3f0ba75ed3" xlink:href="soun-20230930.xsd#soun_SeriesD1PreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_ba5aa06e-0a78-456a-9df4-cc81e175858a" xlink:to="loc_soun_SeriesD1PreferredStockMember_db823416-af5b-4ca0-8c4c-ee3f0ba75ed3" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_SeriesD2PreferredStockMember_9ad6e387-7cda-4308-a8d9-20d941d37eb4" xlink:href="soun-20230930.xsd#soun_SeriesD2PreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_ba5aa06e-0a78-456a-9df4-cc81e175858a" xlink:to="loc_soun_SeriesD2PreferredStockMember_9ad6e387-7cda-4308-a8d9-20d941d37eb4" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_SeriesD3PreferredStockMember_cb7be226-bf76-4d67-a90e-528d70de4ba8" xlink:href="soun-20230930.xsd#soun_SeriesD3PreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_ba5aa06e-0a78-456a-9df4-cc81e175858a" xlink:to="loc_soun_SeriesD3PreferredStockMember_cb7be226-bf76-4d67-a90e-528d70de4ba8" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_SeriesD3APreferredStockMember_3ae591cb-9b9c-4268-958e-9fda6599201c" xlink:href="soun-20230930.xsd#soun_SeriesD3APreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_ba5aa06e-0a78-456a-9df4-cc81e175858a" xlink:to="loc_soun_SeriesD3APreferredStockMember_3ae591cb-9b9c-4268-958e-9fda6599201c" xlink:type="arc" order="8"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/PREFERREDSTOCKNarrativesDetails" xlink:type="simple" xlink:href="soun-20230930.xsd#PREFERREDSTOCKNarrativesDetails"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/PREFERREDSTOCKNarrativesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredUnitsLineItems_06fe3514-d887-4053-9ace-771e32a9d1e4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredUnitsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertiblePreferredStockSharesIssuedUponConversion_7fbe7cb0-44ef-4a76-b184-fa6710e68261" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConvertiblePreferredStockSharesIssuedUponConversion"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PreferredUnitsLineItems_06fe3514-d887-4053-9ace-771e32a9d1e4" xlink:to="loc_us-gaap_ConvertiblePreferredStockSharesIssuedUponConversion_7fbe7cb0-44ef-4a76-b184-fa6710e68261" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_79a0de3c-447b-4cbf-b0e2-f6527d52765e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PreferredUnitsLineItems_06fe3514-d887-4053-9ace-771e32a9d1e4" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_79a0de3c-447b-4cbf-b0e2-f6527d52765e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_c756d910-aaad-479a-a36b-6b9679bf6f3a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PreferredUnitsLineItems_06fe3514-d887-4053-9ace-771e32a9d1e4" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_c756d910-aaad-479a-a36b-6b9679bf6f3a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_cb489226-8fe1-4d93-a5bc-4f5c69519d8b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PreferredUnitsLineItems_06fe3514-d887-4053-9ace-771e32a9d1e4" xlink:to="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_cb489226-8fe1-4d93-a5bc-4f5c69519d8b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_5b845ee7-d98a-4a95-a3c3-9e7f1ac1fe8b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockConsiderationReceivedOnTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PreferredUnitsLineItems_06fe3514-d887-4053-9ace-771e32a9d1e4" xlink:to="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_5b845ee7-d98a-4a95-a3c3-9e7f1ac1fe8b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockPricePerShare_4b7cc439-63d2-4733-9fd7-0c6da464a152" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockPricePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PreferredUnitsLineItems_06fe3514-d887-4053-9ace-771e32a9d1e4" xlink:to="loc_us-gaap_SaleOfStockPricePerShare_4b7cc439-63d2-4733-9fd7-0c6da464a152" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_PreferredStockLiquidationPreferenceAnnualIncreasePercentage_e7c727dc-b4f0-4049-91f8-dc98ffcd7bc5" xlink:href="soun-20230930.xsd#soun_PreferredStockLiquidationPreferenceAnnualIncreasePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PreferredUnitsLineItems_06fe3514-d887-4053-9ace-771e32a9d1e4" xlink:to="loc_soun_PreferredStockLiquidationPreferenceAnnualIncreasePercentage_e7c727dc-b4f0-4049-91f8-dc98ffcd7bc5" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockLiquidationPreference_14409289-1397-4455-8186-988ed6c1edaf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockLiquidationPreference"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PreferredUnitsLineItems_06fe3514-d887-4053-9ace-771e32a9d1e4" xlink:to="loc_us-gaap_PreferredStockLiquidationPreference_14409289-1397-4455-8186-988ed6c1edaf" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockConvertibleConversionPrice_309f09d7-8f17-48b4-a32c-155af65fec16" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockConvertibleConversionPrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PreferredUnitsLineItems_06fe3514-d887-4053-9ace-771e32a9d1e4" xlink:to="loc_us-gaap_PreferredStockConvertibleConversionPrice_309f09d7-8f17-48b4-a32c-155af65fec16" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_CommonStockConvertibleConversionPriceRatio_cf6c0a9b-a5f7-433a-9588-c5ce7912dc6e" xlink:href="soun-20230930.xsd#soun_CommonStockConvertibleConversionPriceRatio"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PreferredUnitsLineItems_06fe3514-d887-4053-9ace-771e32a9d1e4" xlink:to="loc_soun_CommonStockConvertibleConversionPriceRatio_cf6c0a9b-a5f7-433a-9588-c5ce7912dc6e" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_PreferredStockConvertibleThresholdTradingDays_776b9b90-5a14-4347-9cf6-c31c0dab401e" xlink:href="soun-20230930.xsd#soun_PreferredStockConvertibleThresholdTradingDays"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PreferredUnitsLineItems_06fe3514-d887-4053-9ace-771e32a9d1e4" xlink:to="loc_soun_PreferredStockConvertibleThresholdTradingDays_776b9b90-5a14-4347-9cf6-c31c0dab401e" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_PreferredStockConvertibleThresholdConsecutiveTradingDays_cea8b128-6b84-4e94-9976-3503468d3657" xlink:href="soun-20230930.xsd#soun_PreferredStockConvertibleThresholdConsecutiveTradingDays"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PreferredUnitsLineItems_06fe3514-d887-4053-9ace-771e32a9d1e4" xlink:to="loc_soun_PreferredStockConvertibleThresholdConsecutiveTradingDays_cea8b128-6b84-4e94-9976-3503468d3657" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConversionOfStockSharesConverted1_18701dc3-6317-4293-89b9-d4b14223bd0b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConversionOfStockSharesConverted1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PreferredUnitsLineItems_06fe3514-d887-4053-9ace-771e32a9d1e4" xlink:to="loc_us-gaap_ConversionOfStockSharesConverted1_18701dc3-6317-4293-89b9-d4b14223bd0b" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConversionOfStockSharesIssued1_96396ffb-982a-4524-accf-f96d7be15a74" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConversionOfStockSharesIssued1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PreferredUnitsLineItems_06fe3514-d887-4053-9ace-771e32a9d1e4" xlink:to="loc_us-gaap_ConversionOfStockSharesIssued1_96396ffb-982a-4524-accf-f96d7be15a74" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockConvertibleConversionPrice_6ea440f9-4158-4605-bc98-bae7646d4f3b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockConvertibleConversionPrice"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_GainLossOnStockConversion_e624c684-4a75-4772-b944-f0737b65efe2" xlink:href="soun-20230930.xsd#soun_GainLossOnStockConversion"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PreferredUnitsLineItems_06fe3514-d887-4053-9ace-771e32a9d1e4" xlink:to="loc_soun_GainLossOnStockConversion_e624c684-4a75-4772-b944-f0737b65efe2" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPreferredUnitsTable_12186505-b45e-47c9-800e-00a21c19ad2b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfPreferredUnitsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PreferredUnitsLineItems_06fe3514-d887-4053-9ace-771e32a9d1e4" xlink:to="loc_us-gaap_ScheduleOfPreferredUnitsTable_12186505-b45e-47c9-800e-00a21c19ad2b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_372b98d8-727d-46f8-bddf-54e9ca563cff" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPreferredUnitsTable_12186505-b45e-47c9-800e-00a21c19ad2b" xlink:to="loc_dei_LegalEntityAxis_372b98d8-727d-46f8-bddf-54e9ca563cff" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_372b98d8-727d-46f8-bddf-54e9ca563cff_default" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_372b98d8-727d-46f8-bddf-54e9ca563cff" xlink:to="loc_dei_EntityDomain_372b98d8-727d-46f8-bddf-54e9ca563cff_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_30b443f3-48f8-42dd-a18a-c9a17ca1eb28" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_372b98d8-727d-46f8-bddf-54e9ca563cff" xlink:to="loc_dei_EntityDomain_30b443f3-48f8-42dd-a18a-c9a17ca1eb28" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_LegacySoundHoundMember_68e6b8ec-a0f2-4bd1-914b-69e6ccc35e22" xlink:href="soun-20230930.xsd#soun_LegacySoundHoundMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_30b443f3-48f8-42dd-a18a-c9a17ca1eb28" xlink:to="loc_soun_LegacySoundHoundMember_68e6b8ec-a0f2-4bd1-914b-69e6ccc35e22" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_d7b68d56-e4e3-41d4-ac3f-6854bc31b948" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPreferredUnitsTable_12186505-b45e-47c9-800e-00a21c19ad2b" xlink:to="loc_us-gaap_StatementClassOfStockAxis_d7b68d56-e4e3-41d4-ac3f-6854bc31b948" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_d7b68d56-e4e3-41d4-ac3f-6854bc31b948_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_d7b68d56-e4e3-41d4-ac3f-6854bc31b948" xlink:to="loc_us-gaap_ClassOfStockDomain_d7b68d56-e4e3-41d4-ac3f-6854bc31b948_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_2e561ecb-c93f-43a5-89fa-993702e4bb2f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_d7b68d56-e4e3-41d4-ac3f-6854bc31b948" xlink:to="loc_us-gaap_ClassOfStockDomain_2e561ecb-c93f-43a5-89fa-993702e4bb2f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_c680e4f0-4ac5-4d80-a21f-00b199cf4b48" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_2e561ecb-c93f-43a5-89fa-993702e4bb2f" xlink:to="loc_us-gaap_CommonClassAMember_c680e4f0-4ac5-4d80-a21f-00b199cf4b48" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeriesAPreferredStockMember_44be507d-6972-4bb4-829c-dbc904468fa4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SeriesAPreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_2e561ecb-c93f-43a5-89fa-993702e4bb2f" xlink:to="loc_us-gaap_SeriesAPreferredStockMember_44be507d-6972-4bb4-829c-dbc904468fa4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockMember_958b8555-8974-4f43-8113-9ce780d15655" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_2e561ecb-c93f-43a5-89fa-993702e4bb2f" xlink:to="loc_us-gaap_PreferredStockMember_958b8555-8974-4f43-8113-9ce780d15655" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/COMMONSTOCKDetails" xlink:type="simple" xlink:href="soun-20230930.xsd#COMMONSTOCKDetails"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/COMMONSTOCKDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockLineItems_2e48ef9e-05e9-46ca-853e-1689decdada5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_e79c12bf-33eb-4df3-9af8-8ce384429534" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_2e48ef9e-05e9-46ca-853e-1689decdada5" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_e79c12bf-33eb-4df3-9af8-8ce384429534" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_CommonStockAndPreferredStockSharesAuthorized_7e80ac19-e546-4f1b-a98b-856be74f87ec" xlink:href="soun-20230930.xsd#soun_CommonStockAndPreferredStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_2e48ef9e-05e9-46ca-853e-1689decdada5" xlink:to="loc_soun_CommonStockAndPreferredStockSharesAuthorized_7e80ac19-e546-4f1b-a98b-856be74f87ec" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_9054138f-41a1-4c2e-a492-eec3682531e4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_2e48ef9e-05e9-46ca-853e-1689decdada5" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_9054138f-41a1-4c2e-a492-eec3682531e4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_e20fa22f-c791-408d-8611-b6e2050a856a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_2e48ef9e-05e9-46ca-853e-1689decdada5" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_e20fa22f-c791-408d-8611-b6e2050a856a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_01650e7d-e47c-4c48-aed9-66a81ff5ce32" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_2e48ef9e-05e9-46ca-853e-1689decdada5" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_01650e7d-e47c-4c48-aed9-66a81ff5ce32" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConversionOfStockSharesConverted1_b9b6c725-7ffe-4010-b0e4-e40cd4a28d9f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConversionOfStockSharesConverted1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_2e48ef9e-05e9-46ca-853e-1689decdada5" xlink:to="loc_us-gaap_ConversionOfStockSharesConverted1_b9b6c725-7ffe-4010-b0e4-e40cd4a28d9f" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConversionOfStockSharesIssued1_f56aef8b-dbd7-4314-81f9-40412ea3d3bb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConversionOfStockSharesIssued1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_2e48ef9e-05e9-46ca-853e-1689decdada5" xlink:to="loc_us-gaap_ConversionOfStockSharesIssued1_f56aef8b-dbd7-4314-81f9-40412ea3d3bb" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_NumberOfVotesAllocatedToEachShare_87870b78-83a5-47a8-b411-f267c24706bd" xlink:href="soun-20230930.xsd#soun_NumberOfVotesAllocatedToEachShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_2e48ef9e-05e9-46ca-853e-1689decdada5" xlink:to="loc_soun_NumberOfVotesAllocatedToEachShare_87870b78-83a5-47a8-b411-f267c24706bd" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_CommonStockConvertibleConversionRatio_7a36e87a-0c31-450b-adaa-12f831a44224" xlink:href="soun-20230930.xsd#soun_CommonStockConvertibleConversionRatio"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_2e48ef9e-05e9-46ca-853e-1689decdada5" xlink:to="loc_soun_CommonStockConvertibleConversionRatio_7a36e87a-0c31-450b-adaa-12f831a44224" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_SaleOfStockStockPricePercentageOfVolumeWeightedAveregePrice_24f48f70-8dff-427c-8428-9d563ddb698f" xlink:href="soun-20230930.xsd#soun_SaleOfStockStockPricePercentageOfVolumeWeightedAveregePrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_2e48ef9e-05e9-46ca-853e-1689decdada5" xlink:to="loc_soun_SaleOfStockStockPricePercentageOfVolumeWeightedAveregePrice_24f48f70-8dff-427c-8428-9d563ddb698f" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockPercentageOfOwnershipBeforeTransaction_bcab8c7e-131b-4e0a-84bb-a14108987f42" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockPercentageOfOwnershipBeforeTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_2e48ef9e-05e9-46ca-853e-1689decdada5" xlink:to="loc_us-gaap_SaleOfStockPercentageOfOwnershipBeforeTransaction_bcab8c7e-131b-4e0a-84bb-a14108987f42" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_SaleOfStockAggregateSharesAuthorized_610f1e31-a806-4cbb-bc18-9249a74e7c00" xlink:href="soun-20230930.xsd#soun_SaleOfStockAggregateSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_2e48ef9e-05e9-46ca-853e-1689decdada5" xlink:to="loc_soun_SaleOfStockAggregateSharesAuthorized_610f1e31-a806-4cbb-bc18-9249a74e7c00" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockPercentageOfOwnershipAfterTransaction_c3c33b05-e35e-4011-ab4e-bce98f922f1a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockPercentageOfOwnershipAfterTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_2e48ef9e-05e9-46ca-853e-1689decdada5" xlink:to="loc_us-gaap_SaleOfStockPercentageOfOwnershipAfterTransaction_c3c33b05-e35e-4011-ab4e-bce98f922f1a" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesIssuedForServices_c31c3305-baf6-44b5-ba28-286e0c9a99ac" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesIssuedForServices"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_2e48ef9e-05e9-46ca-853e-1689decdada5" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesIssuedForServices_c31c3305-baf6-44b5-ba28-286e0c9a99ac" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_GainLossOnEquityLineOfCreditFinancingProgram_38d89317-26ab-4604-acd8-1e323176f4fb" xlink:href="soun-20230930.xsd#soun_GainLossOnEquityLineOfCreditFinancingProgram"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_2e48ef9e-05e9-46ca-853e-1689decdada5" xlink:to="loc_soun_GainLossOnEquityLineOfCreditFinancingProgram_38d89317-26ab-4604-acd8-1e323176f4fb" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_SaleOfStockCostsIncurred_a7fdd166-bd6e-4188-b1c9-ea6d533c4805" xlink:href="soun-20230930.xsd#soun_SaleOfStockCostsIncurred"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_2e48ef9e-05e9-46ca-853e-1689decdada5" xlink:to="loc_soun_SaleOfStockCostsIncurred_a7fdd166-bd6e-4188-b1c9-ea6d533c4805" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_9b6ddcf8-4c80-4db0-947d-9fe2c7243ce2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_2e48ef9e-05e9-46ca-853e-1689decdada5" xlink:to="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_9b6ddcf8-4c80-4db0-947d-9fe2c7243ce2" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromOtherEquity_68f9c4d9-46b9-48f0-af5c-925a4e8a6ce2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromOtherEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_2e48ef9e-05e9-46ca-853e-1689decdada5" xlink:to="loc_us-gaap_ProceedsFromOtherEquity_68f9c4d9-46b9-48f0-af5c-925a4e8a6ce2" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilities_55f2599e-a5fb-49ce-bab8-a6c0288a016b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_2e48ef9e-05e9-46ca-853e-1689decdada5" xlink:to="loc_us-gaap_DerivativeLiabilities_55f2599e-a5fb-49ce-bab8-a6c0288a016b" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_f3ab1386-083e-444c-96c2-f3232eba130f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockConsiderationReceivedOnTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_2e48ef9e-05e9-46ca-853e-1689decdada5" xlink:to="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_f3ab1386-083e-444c-96c2-f3232eba130f" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_SaleOfStockFixedCommissionRate_207cbc8c-92ae-4084-9ef7-34c1c831a950" xlink:href="soun-20230930.xsd#soun_SaleOfStockFixedCommissionRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_2e48ef9e-05e9-46ca-853e-1689decdada5" xlink:to="loc_soun_SaleOfStockFixedCommissionRate_207cbc8c-92ae-4084-9ef7-34c1c831a950" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_SaleOfStockReimbursibleExpenses_4707a8ae-9ee3-4425-8b20-173f2ca3dbd4" xlink:href="soun-20230930.xsd#soun_SaleOfStockReimbursibleExpenses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_2e48ef9e-05e9-46ca-853e-1689decdada5" xlink:to="loc_soun_SaleOfStockReimbursibleExpenses_4707a8ae-9ee3-4425-8b20-173f2ca3dbd4" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_18ee1587-c8ff-4ab0-afa0-399ae80090b0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfStockByClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfStockLineItems_2e48ef9e-05e9-46ca-853e-1689decdada5" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_18ee1587-c8ff-4ab0-afa0-399ae80090b0" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_33e0bbda-c2e1-4e33-9a13-dba39cec3c49" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_18ee1587-c8ff-4ab0-afa0-399ae80090b0" xlink:to="loc_srt_CounterpartyNameAxis_33e0bbda-c2e1-4e33-9a13-dba39cec3c49" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_33e0bbda-c2e1-4e33-9a13-dba39cec3c49_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_33e0bbda-c2e1-4e33-9a13-dba39cec3c49" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_33e0bbda-c2e1-4e33-9a13-dba39cec3c49_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_11be4c8d-4a15-4100-b918-fffe0d538933" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_33e0bbda-c2e1-4e33-9a13-dba39cec3c49" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_11be4c8d-4a15-4100-b918-fffe0d538933" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_CFPrincipalInvestmentsMember_4d96b937-31fb-4949-b9d3-48ce737c2faa" xlink:href="soun-20230930.xsd#soun_CFPrincipalInvestmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_11be4c8d-4a15-4100-b918-fffe0d538933" xlink:to="loc_soun_CFPrincipalInvestmentsMember_4d96b937-31fb-4949-b9d3-48ce737c2faa" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_9afeeb89-45b2-41a6-b133-942bdc48c57c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_18ee1587-c8ff-4ab0-afa0-399ae80090b0" xlink:to="loc_us-gaap_StatementClassOfStockAxis_9afeeb89-45b2-41a6-b133-942bdc48c57c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_9afeeb89-45b2-41a6-b133-942bdc48c57c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_9afeeb89-45b2-41a6-b133-942bdc48c57c" xlink:to="loc_us-gaap_ClassOfStockDomain_9afeeb89-45b2-41a6-b133-942bdc48c57c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_0de7fe82-b790-4f40-b102-c8686082d940" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_9afeeb89-45b2-41a6-b133-942bdc48c57c" xlink:to="loc_us-gaap_ClassOfStockDomain_0de7fe82-b790-4f40-b102-c8686082d940" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_bf0109c0-8387-4d7b-8556-13095912c757" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_0de7fe82-b790-4f40-b102-c8686082d940" xlink:to="loc_us-gaap_CommonClassAMember_bf0109c0-8387-4d7b-8556-13095912c757" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassBMember_77747da8-754c-4970-8874-afecb3e6cd67" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonClassBMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_0de7fe82-b790-4f40-b102-c8686082d940" xlink:to="loc_us-gaap_CommonClassBMember_77747da8-754c-4970-8874-afecb3e6cd67" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_a818eee5-1f31-474a-a462-3e9a8bfb80d3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_0de7fe82-b790-4f40-b102-c8686082d940" xlink:to="loc_us-gaap_CommonStockMember_a818eee5-1f31-474a-a462-3e9a8bfb80d3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockMember_b75e9025-922a-4ca5-8160-f64fd230f9c9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_0de7fe82-b790-4f40-b102-c8686082d940" xlink:to="loc_us-gaap_PreferredStockMember_b75e9025-922a-4ca5-8160-f64fd230f9c9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_ea23cddb-3073-4644-87d7-6dce40aecbd7" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_18ee1587-c8ff-4ab0-afa0-399ae80090b0" xlink:to="loc_dei_LegalEntityAxis_ea23cddb-3073-4644-87d7-6dce40aecbd7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_ea23cddb-3073-4644-87d7-6dce40aecbd7_default" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_ea23cddb-3073-4644-87d7-6dce40aecbd7" xlink:to="loc_dei_EntityDomain_ea23cddb-3073-4644-87d7-6dce40aecbd7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_b62d5287-148b-456b-937a-11c3ed76c4e9" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_ea23cddb-3073-4644-87d7-6dce40aecbd7" xlink:to="loc_dei_EntityDomain_b62d5287-148b-456b-937a-11c3ed76c4e9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_LegacySoundHoundMember_0e040c9e-1b6e-4438-bd2b-ad17ea0b34a8" xlink:href="soun-20230930.xsd#soun_LegacySoundHoundMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_b62d5287-148b-456b-937a-11c3ed76c4e9" xlink:to="loc_soun_LegacySoundHoundMember_0e040c9e-1b6e-4438-bd2b-ad17ea0b34a8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_2bc4429b-3bf7-424c-b7d8-e723409f00d4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_18ee1587-c8ff-4ab0-afa0-399ae80090b0" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_2bc4429b-3bf7-424c-b7d8-e723409f00d4" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_2bc4429b-3bf7-424c-b7d8-e723409f00d4_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_2bc4429b-3bf7-424c-b7d8-e723409f00d4" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_2bc4429b-3bf7-424c-b7d8-e723409f00d4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_b1a7c65b-7d8c-42a4-910b-35dbe6e5add3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_2bc4429b-3bf7-424c-b7d8-e723409f00d4" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_b1a7c65b-7d8c-42a4-910b-35dbe6e5add3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_CommonStockPurchaseAgreementMember_c76d9a65-39f0-4454-93cb-62e6a7f89a8c" xlink:href="soun-20230930.xsd#soun_CommonStockPurchaseAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_b1a7c65b-7d8c-42a4-910b-35dbe6e5add3" xlink:to="loc_soun_CommonStockPurchaseAgreementMember_c76d9a65-39f0-4454-93cb-62e6a7f89a8c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_EquityLineOfCreditProgramMember_b6fa6a5b-1ade-48cf-89bc-54ab3cd81a17" xlink:href="soun-20230930.xsd#soun_EquityLineOfCreditProgramMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_b1a7c65b-7d8c-42a4-910b-35dbe6e5add3" xlink:to="loc_soun_EquityLineOfCreditProgramMember_b6fa6a5b-1ade-48cf-89bc-54ab3cd81a17" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_ControlledEquityOfferingSalesAgreementMember_fdd64ee5-9087-4411-a985-d01ae5f0714e" xlink:href="soun-20230930.xsd#soun_ControlledEquityOfferingSalesAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_b1a7c65b-7d8c-42a4-910b-35dbe6e5add3" xlink:to="loc_soun_ControlledEquityOfferingSalesAgreementMember_fdd64ee5-9087-4411-a985-d01ae5f0714e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_64acf204-3aa7-436b-a960-6410d11d15a0" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_18ee1587-c8ff-4ab0-afa0-399ae80090b0" xlink:to="loc_srt_RangeAxis_64acf204-3aa7-436b-a960-6410d11d15a0" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_64acf204-3aa7-436b-a960-6410d11d15a0_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_64acf204-3aa7-436b-a960-6410d11d15a0" xlink:to="loc_srt_RangeMember_64acf204-3aa7-436b-a960-6410d11d15a0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_6e4c6c28-3261-4b7d-8cc3-9d03684a9fb7" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_64acf204-3aa7-436b-a960-6410d11d15a0" xlink:to="loc_srt_RangeMember_6e4c6c28-3261-4b7d-8cc3-9d03684a9fb7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_cca54f60-c26b-49f2-9eb4-07e10b6b7b3d" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_6e4c6c28-3261-4b7d-8cc3-9d03684a9fb7" xlink:to="loc_srt_MinimumMember_cca54f60-c26b-49f2-9eb4-07e10b6b7b3d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_836cba4f-2618-4003-8d6e-e0a42141f870" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_6e4c6c28-3261-4b7d-8cc3-9d03684a9fb7" xlink:to="loc_srt_MaximumMember_836cba4f-2618-4003-8d6e-e0a42141f870" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/NETLOSSPERSHAREScheduleofoutstandingsharesofpotentiallydilutivesecuritiesDetails" xlink:type="simple" xlink:href="soun-20230930.xsd#NETLOSSPERSHAREScheduleofoutstandingsharesofpotentiallydilutivesecuritiesDetails"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/NETLOSSPERSHAREScheduleofoutstandingsharesofpotentiallydilutivesecuritiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_e39a41f5-362b-4b24-8210-877117b8d159" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c59b7629-b1dd-4900-8397-ab22254b2c9a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_e39a41f5-362b-4b24-8210-877117b8d159" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c59b7629-b1dd-4900-8397-ab22254b2c9a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_6f8556a9-db9e-40fa-9580-ffa4f601fd05" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_e39a41f5-362b-4b24-8210-877117b8d159" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_6f8556a9-db9e-40fa-9580-ffa4f601fd05" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_1a5e5ece-4d8c-4abb-9793-c1546ff0db2c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_6f8556a9-db9e-40fa-9580-ffa4f601fd05" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_1a5e5ece-4d8c-4abb-9793-c1546ff0db2c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_1a5e5ece-4d8c-4abb-9793-c1546ff0db2c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_1a5e5ece-4d8c-4abb-9793-c1546ff0db2c" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_1a5e5ece-4d8c-4abb-9793-c1546ff0db2c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_7e0b53ec-857b-4081-ba86-846587092000" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_1a5e5ece-4d8c-4abb-9793-c1546ff0db2c" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_7e0b53ec-857b-4081-ba86-846587092000" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_2df89fd8-812c-43b8-a184-d709d83c4378" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_7e0b53ec-857b-4081-ba86-846587092000" xlink:to="loc_us-gaap_EmployeeStockOptionMember_2df89fd8-812c-43b8-a184-d709d83c4378" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeriesAPreferredStockMember_cd979c51-a436-4888-a892-048a93d6fd25" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SeriesAPreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_7e0b53ec-857b-4081-ba86-846587092000" xlink:to="loc_us-gaap_SeriesAPreferredStockMember_cd979c51-a436-4888-a892-048a93d6fd25" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantMember_325236bc-9d16-46e2-90dc-7d51a2dd66c8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_7e0b53ec-857b-4081-ba86-846587092000" xlink:to="loc_us-gaap_WarrantMember_325236bc-9d16-46e2-90dc-7d51a2dd66c8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_e2a3cb26-2a82-4332-87f7-9b248156650e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_6f8556a9-db9e-40fa-9580-ffa4f601fd05" xlink:to="loc_us-gaap_StatementClassOfStockAxis_e2a3cb26-2a82-4332-87f7-9b248156650e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_e2a3cb26-2a82-4332-87f7-9b248156650e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_e2a3cb26-2a82-4332-87f7-9b248156650e" xlink:to="loc_us-gaap_ClassOfStockDomain_e2a3cb26-2a82-4332-87f7-9b248156650e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_88d4d14f-c8ae-4a74-a142-267c750cffee" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_e2a3cb26-2a82-4332-87f7-9b248156650e" xlink:to="loc_us-gaap_ClassOfStockDomain_88d4d14f-c8ae-4a74-a142-267c750cffee" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_0265145b-845d-4e95-b0d7-0db4a6e02250" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_88d4d14f-c8ae-4a74-a142-267c750cffee" xlink:to="loc_us-gaap_CommonStockMember_0265145b-845d-4e95-b0d7-0db4a6e02250" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/RELATEDPARTYTRANSACTIONSDetails" xlink:type="simple" xlink:href="soun-20230930.xsd#RELATEDPARTYTRANSACTIONSDetails"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/RELATEDPARTYTRANSACTIONSDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_2dfac95d-7d74-4c5c-92fa-6fb899d1e643" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_ab73b629-24d6-4d96-9c7a-7d448aa7e80e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Revenues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_2dfac95d-7d74-4c5c-92fa-6fb899d1e643" xlink:to="loc_us-gaap_Revenues_ab73b629-24d6-4d96-9c7a-7d448aa7e80e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_a48ec07f-a4a7-4691-b4a1-539fb4f4047b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_2dfac95d-7d74-4c5c-92fa-6fb899d1e643" xlink:to="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_a48ec07f-a4a7-4691-b4a1-539fb4f4047b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockPricePerShare_fbf13a49-6f1e-4506-9fb9-f6dbf2343f3e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockPricePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_2dfac95d-7d74-4c5c-92fa-6fb899d1e643" xlink:to="loc_us-gaap_SaleOfStockPricePerShare_fbf13a49-6f1e-4506-9fb9-f6dbf2343f3e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_a8716238-3b79-4d41-b181-f3150953b148" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_2dfac95d-7d74-4c5c-92fa-6fb899d1e643" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_a8716238-3b79-4d41-b181-f3150953b148" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualAxis_a5107c0c-f58a-44a2-8ad4-bd6a59aa12a7" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_TitleOfIndividualAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_a8716238-3b79-4d41-b181-f3150953b148" xlink:to="loc_srt_TitleOfIndividualAxis_a5107c0c-f58a-44a2-8ad4-bd6a59aa12a7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_a5107c0c-f58a-44a2-8ad4-bd6a59aa12a7_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_TitleOfIndividualAxis_a5107c0c-f58a-44a2-8ad4-bd6a59aa12a7" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_a5107c0c-f58a-44a2-8ad4-bd6a59aa12a7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_59b07202-a9f2-4086-a226-5298ea30cd5c" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_TitleOfIndividualAxis_a5107c0c-f58a-44a2-8ad4-bd6a59aa12a7" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_59b07202-a9f2-4086-a226-5298ea30cd5c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_ChiefExecutiveOfficerAndDirectorMember_0e98a193-b18d-4938-babe-5ed24ee98a70" xlink:href="soun-20230930.xsd#soun_ChiefExecutiveOfficerAndDirectorMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_59b07202-a9f2-4086-a226-5298ea30cd5c" xlink:to="loc_soun_ChiefExecutiveOfficerAndDirectorMember_0e98a193-b18d-4938-babe-5ed24ee98a70" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_ad0286f0-1141-4d40-94d3-5202960db29d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_a8716238-3b79-4d41-b181-f3150953b148" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_ad0286f0-1141-4d40-94d3-5202960db29d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_ad0286f0-1141-4d40-94d3-5202960db29d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_ad0286f0-1141-4d40-94d3-5202960db29d" xlink:to="loc_us-gaap_RelatedPartyDomain_ad0286f0-1141-4d40-94d3-5202960db29d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_191f9ade-c4fb-4dff-a019-40a711c80659" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_ad0286f0-1141-4d40-94d3-5202960db29d" xlink:to="loc_us-gaap_RelatedPartyDomain_191f9ade-c4fb-4dff-a019-40a711c80659" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_AffiliatedEntityMember_416632f5-b79e-4bdc-8ab4-bf0b6e06830e" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_AffiliatedEntityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_191f9ade-c4fb-4dff-a019-40a711c80659" xlink:to="loc_srt_AffiliatedEntityMember_416632f5-b79e-4bdc-8ab4-bf0b6e06830e" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/REVISIONOFPREVIOUSLYISSUEDFINANCIALSTATEMENTSScheduleofbalanceCondensedBalanceSheetDetails" xlink:type="simple" xlink:href="soun-20230930.xsd#REVISIONOFPREVIOUSLYISSUEDFINANCIALSTATEMENTSScheduleofbalanceCondensedBalanceSheetDetails"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/REVISIONOFPREVIOUSLYISSUEDFINANCIALSTATEMENTSScheduleofbalanceCondensedBalanceSheetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_c5ae1bb7-a7d7-491e-8af8-c6a4fccb0eb7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_04fa19ec-3fef-4b99-899a-c690c8676a4c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_c5ae1bb7-a7d7-491e-8af8-c6a4fccb0eb7" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_04fa19ec-3fef-4b99-899a-c690c8676a4c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_b6279403-3320-424b-8a9d-38ccab8bfdc8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Assets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_c5ae1bb7-a7d7-491e-8af8-c6a4fccb0eb7" xlink:to="loc_us-gaap_Assets_b6279403-3320-424b-8a9d-38ccab8bfdc8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_b0d9c5ad-348f-4aee-8ed2-25a4ec0a3741" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_c5ae1bb7-a7d7-491e-8af8-c6a4fccb0eb7" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_b0d9c5ad-348f-4aee-8ed2-25a4ec0a3741" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_06945812-3596-4a9c-810c-367a4e874734" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_c5ae1bb7-a7d7-491e-8af8-c6a4fccb0eb7" xlink:to="loc_us-gaap_LiabilitiesCurrent_06945812-3596-4a9c-810c-367a4e874734" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesPayableCurrent_e2383018-0918-49d5-93d3-96b9b95e0a13" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NotesPayableCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_c5ae1bb7-a7d7-491e-8af8-c6a4fccb0eb7" xlink:to="loc_us-gaap_NotesPayableCurrent_e2383018-0918-49d5-93d3-96b9b95e0a13" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_9e8d4f9a-3409-432c-a157-04988e20e2f1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_c5ae1bb7-a7d7-491e-8af8-c6a4fccb0eb7" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_9e8d4f9a-3409-432c-a157-04988e20e2f1" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_34422f30-bd05-4cc1-be2f-63adc920f74e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Liabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_c5ae1bb7-a7d7-491e-8af8-c6a4fccb0eb7" xlink:to="loc_us-gaap_Liabilities_34422f30-bd05-4cc1-be2f-63adc920f74e" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_a12d18de-5dc1-43a1-81bb-8d8758d7a691" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdditionalPaidInCapital"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_c5ae1bb7-a7d7-491e-8af8-c6a4fccb0eb7" xlink:to="loc_us-gaap_AdditionalPaidInCapital_a12d18de-5dc1-43a1-81bb-8d8758d7a691" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_b328c3b4-80cc-432b-9767-9fe4c6bf9ca6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_c5ae1bb7-a7d7-491e-8af8-c6a4fccb0eb7" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_b328c3b4-80cc-432b-9767-9fe4c6bf9ca6" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_6303d63c-f2a9-4b40-b6b3-21a6392e8073" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_c5ae1bb7-a7d7-491e-8af8-c6a4fccb0eb7" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_6303d63c-f2a9-4b40-b6b3-21a6392e8073" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_5901f8f1-27d9-4ac8-9613-d2c077297e10" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_c5ae1bb7-a7d7-491e-8af8-c6a4fccb0eb7" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_5901f8f1-27d9-4ac8-9613-d2c077297e10" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_8e3deb2e-e9f2-49e7-85d0-a6f17e4c867f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_c5ae1bb7-a7d7-491e-8af8-c6a4fccb0eb7" xlink:to="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_8e3deb2e-e9f2-49e7-85d0-a6f17e4c867f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementAxis_2eaaca16-8007-45a4-97c9-668344ac3628" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RestatementAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_8e3deb2e-e9f2-49e7-85d0-a6f17e4c867f" xlink:to="loc_srt_RestatementAxis_2eaaca16-8007-45a4-97c9-668344ac3628" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementDomain_2eaaca16-8007-45a4-97c9-668344ac3628_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RestatementDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RestatementAxis_2eaaca16-8007-45a4-97c9-668344ac3628" xlink:to="loc_srt_RestatementDomain_2eaaca16-8007-45a4-97c9-668344ac3628_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementDomain_d0d4ed01-bc87-4546-b1e1-0ab8d16f84bf" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RestatementDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RestatementAxis_2eaaca16-8007-45a4-97c9-668344ac3628" xlink:to="loc_srt_RestatementDomain_d0d4ed01-bc87-4546-b1e1-0ab8d16f84bf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioPreviouslyReportedMember_377ccae8-5a01-4d5d-91ce-486f5c725df5" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ScenarioPreviouslyReportedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RestatementDomain_d0d4ed01-bc87-4546-b1e1-0ab8d16f84bf" xlink:to="loc_srt_ScenarioPreviouslyReportedMember_377ccae8-5a01-4d5d-91ce-486f5c725df5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementAdjustmentMember_21d78555-c9ec-4c2a-ac92-c85da88896ea" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RestatementAdjustmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RestatementDomain_d0d4ed01-bc87-4546-b1e1-0ab8d16f84bf" xlink:to="loc_srt_RestatementAdjustmentMember_21d78555-c9ec-4c2a-ac92-c85da88896ea" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/REVISIONOFPREVIOUSLYISSUEDFINANCIALSTATEMENTSScheduleofOtherIncomeExpenseNetDetails" xlink:type="simple" xlink:href="soun-20230930.xsd#REVISIONOFPREVIOUSLYISSUEDFINANCIALSTATEMENTSScheduleofOtherIncomeExpenseNetDetails"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/REVISIONOFPREVIOUSLYISSUEDFINANCIALSTATEMENTSScheduleofOtherIncomeExpenseNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_7a8f8fd4-d7b2-4d23-9592-8cd59ba52220" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_c7f59856-6401-4310-a6ed-c9ca10125458" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_7a8f8fd4-d7b2-4d23-9592-8cd59ba52220" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_c7f59856-6401-4310-a6ed-c9ca10125458" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_f40ffd87-9e67-4ac3-8b59-0a4ef52dfb8a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_7a8f8fd4-d7b2-4d23-9592-8cd59ba52220" xlink:to="loc_us-gaap_OperatingIncomeLoss_f40ffd87-9e67-4ac3-8b59-0a4ef52dfb8a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherOperatingIncomeExpenseNet_369a7ac8-a3a7-4aae-a732-be5d4399c6b8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherOperatingIncomeExpenseNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_7a8f8fd4-d7b2-4d23-9592-8cd59ba52220" xlink:to="loc_us-gaap_OtherOperatingIncomeExpenseNet_369a7ac8-a3a7-4aae-a732-be5d4399c6b8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_44d49628-57aa-4fca-8d4f-a530f5c5cbc0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_7a8f8fd4-d7b2-4d23-9592-8cd59ba52220" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_44d49628-57aa-4fca-8d4f-a530f5c5cbc0" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_7183531d-7886-4e02-94ea-54965b899d90" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_7a8f8fd4-d7b2-4d23-9592-8cd59ba52220" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_7183531d-7886-4e02-94ea-54965b899d90" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_d4beb459-53ea-440f-8eaa-ec3e18453fe3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_7a8f8fd4-d7b2-4d23-9592-8cd59ba52220" xlink:to="loc_us-gaap_NetIncomeLoss_d4beb459-53ea-440f-8eaa-ec3e18453fe3" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockDividendsIncomeStatementImpact_aa246832-f72e-4ce9-92f4-ad4e23220839" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockDividendsIncomeStatementImpact"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_7a8f8fd4-d7b2-4d23-9592-8cd59ba52220" xlink:to="loc_us-gaap_PreferredStockDividendsIncomeStatementImpact_aa246832-f72e-4ce9-92f4-ad4e23220839" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_d07d9fe0-5274-408f-898b-62ac8e6f41c3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_7a8f8fd4-d7b2-4d23-9592-8cd59ba52220" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_d07d9fe0-5274-408f-898b-62ac8e6f41c3" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_844bdc58-42db-4dbc-912f-9ae32ad06a1b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_7a8f8fd4-d7b2-4d23-9592-8cd59ba52220" xlink:to="loc_us-gaap_EarningsPerShareBasic_844bdc58-42db-4dbc-912f-9ae32ad06a1b" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_68d4a73a-bf9c-4b9e-a84d-0c76534d454c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_7a8f8fd4-d7b2-4d23-9592-8cd59ba52220" xlink:to="loc_us-gaap_EarningsPerShareDiluted_68d4a73a-bf9c-4b9e-a84d-0c76534d454c" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_2003031c-b225-465c-b29a-0ac2bc0bfe79" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_7a8f8fd4-d7b2-4d23-9592-8cd59ba52220" xlink:to="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_2003031c-b225-465c-b29a-0ac2bc0bfe79" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementAxis_6dd4092b-a79f-4248-9e35-e6f7642b512a" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RestatementAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_2003031c-b225-465c-b29a-0ac2bc0bfe79" xlink:to="loc_srt_RestatementAxis_6dd4092b-a79f-4248-9e35-e6f7642b512a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementDomain_6dd4092b-a79f-4248-9e35-e6f7642b512a_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RestatementDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RestatementAxis_6dd4092b-a79f-4248-9e35-e6f7642b512a" xlink:to="loc_srt_RestatementDomain_6dd4092b-a79f-4248-9e35-e6f7642b512a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementDomain_8fffba73-6a15-4d81-ae1c-18a1329e9f92" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RestatementDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RestatementAxis_6dd4092b-a79f-4248-9e35-e6f7642b512a" xlink:to="loc_srt_RestatementDomain_8fffba73-6a15-4d81-ae1c-18a1329e9f92" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioPreviouslyReportedMember_8c1c3c2b-eb5b-4f8d-bc00-f6c3e6b31bc1" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ScenarioPreviouslyReportedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RestatementDomain_8fffba73-6a15-4d81-ae1c-18a1329e9f92" xlink:to="loc_srt_ScenarioPreviouslyReportedMember_8c1c3c2b-eb5b-4f8d-bc00-f6c3e6b31bc1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementAdjustmentMember_1ebee58a-2a44-4733-b07f-0331d20d125d" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RestatementAdjustmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RestatementDomain_8fffba73-6a15-4d81-ae1c-18a1329e9f92" xlink:to="loc_srt_RestatementAdjustmentMember_1ebee58a-2a44-4733-b07f-0331d20d125d" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/REVISIONOFPREVIOUSLYISSUEDFINANCIALSTATEMENTSScheduleofStockholdersEquityDetails" xlink:type="simple" xlink:href="soun-20230930.xsd#REVISIONOFPREVIOUSLYISSUEDFINANCIALSTATEMENTSScheduleofStockholdersEquityDetails"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/REVISIONOFPREVIOUSLYISSUEDFINANCIALSTATEMENTSScheduleofStockholdersEquityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_d9b7578d-bf15-43f4-92ed-5b9a01edf41c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_b056bce9-76e0-4d77-a644-fa654fe46781" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdditionalPaidInCapital"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_d9b7578d-bf15-43f4-92ed-5b9a01edf41c" xlink:to="loc_us-gaap_AdditionalPaidInCapital_b056bce9-76e0-4d77-a644-fa654fe46781" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_4b1ac15e-ecd8-44da-a531-d5c344ba780f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_d9b7578d-bf15-43f4-92ed-5b9a01edf41c" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_4b1ac15e-ecd8-44da-a531-d5c344ba780f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_8fd16a85-d1f2-404d-a02d-fc50b0d2bdcf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_d9b7578d-bf15-43f4-92ed-5b9a01edf41c" xlink:to="loc_us-gaap_NetIncomeLoss_8fd16a85-d1f2-404d-a02d-fc50b0d2bdcf" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_a114a937-c306-46f7-ad5f-94fef4b277fc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_d9b7578d-bf15-43f4-92ed-5b9a01edf41c" xlink:to="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_a114a937-c306-46f7-ad5f-94fef4b277fc" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementAxis_65276705-e9d4-4a70-9bec-f1dcf37162fc" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RestatementAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_a114a937-c306-46f7-ad5f-94fef4b277fc" xlink:to="loc_srt_RestatementAxis_65276705-e9d4-4a70-9bec-f1dcf37162fc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementDomain_65276705-e9d4-4a70-9bec-f1dcf37162fc_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RestatementDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RestatementAxis_65276705-e9d4-4a70-9bec-f1dcf37162fc" xlink:to="loc_srt_RestatementDomain_65276705-e9d4-4a70-9bec-f1dcf37162fc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementDomain_963c36a6-87e5-41b8-b977-cda679694178" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RestatementDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RestatementAxis_65276705-e9d4-4a70-9bec-f1dcf37162fc" xlink:to="loc_srt_RestatementDomain_963c36a6-87e5-41b8-b977-cda679694178" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioPreviouslyReportedMember_8e861b1c-62aa-457d-a073-50ca9ecd75f7" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ScenarioPreviouslyReportedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RestatementDomain_963c36a6-87e5-41b8-b977-cda679694178" xlink:to="loc_srt_ScenarioPreviouslyReportedMember_8e861b1c-62aa-457d-a073-50ca9ecd75f7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementAdjustmentMember_84c89640-12c3-46b7-8a6a-2b3b2f82bd63" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RestatementAdjustmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RestatementDomain_963c36a6-87e5-41b8-b977-cda679694178" xlink:to="loc_srt_RestatementAdjustmentMember_84c89640-12c3-46b7-8a6a-2b3b2f82bd63" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.soundhound.com/role/REVISIONOFPREVIOUSLYISSUEDFINANCIALSTATEMENTSScheduleofCashFlowSupplementalDisclosuresDetails" xlink:type="simple" xlink:href="soun-20230930.xsd#REVISIONOFPREVIOUSLYISSUEDFINANCIALSTATEMENTSScheduleofCashFlowSupplementalDisclosuresDetails"/>
  <link:definitionLink xlink:role="http://www.soundhound.com/role/REVISIONOFPREVIOUSLYISSUEDFINANCIALSTATEMENTSScheduleofCashFlowSupplementalDisclosuresDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_a69b6076-092c-4fb9-9f19-e88c085e724f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_d0091a09-3080-444f-9dc4-53e2509414b1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_a69b6076-092c-4fb9-9f19-e88c085e724f" xlink:to="loc_us-gaap_NetIncomeLoss_d0091a09-3080-444f-9dc4-53e2509414b1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_GainLossOnEquityLineOfCreditFinancingProgram_e980a0fb-80ac-4d08-9c8c-aa2f7ad9b17e" xlink:href="soun-20230930.xsd#soun_GainLossOnEquityLineOfCreditFinancingProgram"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_a69b6076-092c-4fb9-9f19-e88c085e724f" xlink:to="loc_soun_GainLossOnEquityLineOfCreditFinancingProgram_e980a0fb-80ac-4d08-9c8c-aa2f7ad9b17e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets_bf78441c-9c1c-4a87-a907-cca9b864757c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInOtherNoncurrentAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_a69b6076-092c-4fb9-9f19-e88c085e724f" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets_bf78441c-9c1c-4a87-a907-cca9b864757c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_cf99df0e-cb5a-4473-b2c6-478d8bfd38a2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_a69b6076-092c-4fb9-9f19-e88c085e724f" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_cf99df0e-cb5a-4473-b2c6-478d8bfd38a2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d7a387c9-51d4-470f-9bb8-a4a08b0d4bdc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_a69b6076-092c-4fb9-9f19-e88c085e724f" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d7a387c9-51d4-470f-9bb8-a4a08b0d4bdc" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfStockIssuanceCosts_2ba45bdb-e4af-429d-879f-a62203b699f9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsOfStockIssuanceCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_a69b6076-092c-4fb9-9f19-e88c085e724f" xlink:to="loc_us-gaap_PaymentsOfStockIssuanceCosts_2ba45bdb-e4af-429d-879f-a62203b699f9" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromOtherEquity_f4a51fa9-5dd2-4e64-a79f-b82c1c6a6ff7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromOtherEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_a69b6076-092c-4fb9-9f19-e88c085e724f" xlink:to="loc_us-gaap_ProceedsFromOtherEquity_f4a51fa9-5dd2-4e64-a79f-b82c1c6a6ff7" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6a960725-f116-4ec4-910f-fb0c11d8ddbb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_a69b6076-092c-4fb9-9f19-e88c085e724f" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6a960725-f116-4ec4-910f-fb0c11d8ddbb" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction_95769e8c-a0d9-4a64-8c57-3a28eec43ff8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_a69b6076-092c-4fb9-9f19-e88c085e724f" xlink:to="loc_us-gaap_DebtIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction_95769e8c-a0d9-4a64-8c57-3a28eec43ff8" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_soun_NonCashDebtDiscount_36882602-c295-4912-b515-525b84a06e77" xlink:href="soun-20230930.xsd#soun_NonCashDebtDiscount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_a69b6076-092c-4fb9-9f19-e88c085e724f" xlink:to="loc_soun_NonCashDebtDiscount_36882602-c295-4912-b515-525b84a06e77" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssued1_e49cb534-544a-4b18-928d-5d7eebc6178e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssued1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_a69b6076-092c-4fb9-9f19-e88c085e724f" xlink:to="loc_us-gaap_StockIssued1_e49cb534-544a-4b18-928d-5d7eebc6178e" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_97a2acf7-a78d-43c0-a2d7-ade049dceea2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems_a69b6076-092c-4fb9-9f19-e88c085e724f" xlink:to="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_97a2acf7-a78d-43c0-a2d7-ade049dceea2" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementAxis_51d72e35-c6fd-426a-a45e-a501510b6165" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RestatementAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable_97a2acf7-a78d-43c0-a2d7-ade049dceea2" xlink:to="loc_srt_RestatementAxis_51d72e35-c6fd-426a-a45e-a501510b6165" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementDomain_51d72e35-c6fd-426a-a45e-a501510b6165_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RestatementDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RestatementAxis_51d72e35-c6fd-426a-a45e-a501510b6165" xlink:to="loc_srt_RestatementDomain_51d72e35-c6fd-426a-a45e-a501510b6165_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementDomain_e820d85d-1560-41b7-8e00-498496536df2" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RestatementDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RestatementAxis_51d72e35-c6fd-426a-a45e-a501510b6165" xlink:to="loc_srt_RestatementDomain_e820d85d-1560-41b7-8e00-498496536df2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioPreviouslyReportedMember_ea313632-262b-4dda-a152-7ca6683994bf" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ScenarioPreviouslyReportedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RestatementDomain_e820d85d-1560-41b7-8e00-498496536df2" xlink:to="loc_srt_ScenarioPreviouslyReportedMember_ea313632-262b-4dda-a152-7ca6683994bf" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RestatementAdjustmentMember_8752a76e-779f-4388-85f0-fd9b9ca105fe" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RestatementAdjustmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RestatementDomain_e820d85d-1560-41b7-8e00-498496536df2" xlink:to="loc_srt_RestatementAdjustmentMember_8752a76e-779f-4388-85f0-fd9b9ca105fe" xlink:type="arc" order="1"/>
  </link:definitionLink>
</link:linkbase>
