<?xml version="1.0" encoding="utf-8"?>
<PRONOM-Report xmlns="http://pronom.nationalarchives.gov.uk">
  <report_format_detail>
    <FileFormat>
      <FormatID>785</FormatID>
      <FormatName>Waveform Audio (WAVEFORMATEX)</FormatName>
      <FormatVersion>
      </FormatVersion>
      <FormatAliases>
      </FormatAliases>
      <FormatFamilies>WAVE</FormatFamilies>
      <FormatTypes>Audio</FormatTypes>
      <FormatDisclosure>
      </FormatDisclosure>
      <FormatDescription>Waveform Audio (WAVEFORMATEX) is an extended version of the Waveform Audio file format, and was developed by Microsoft. It has superseded the Waveform Audio (PCMWAVEFORMAT).</FormatDescription>
      <BinaryFileFormat>Text</BinaryFileFormat>
      <ByteOrders>Little-endian (Intel)</ByteOrders>
      <ReleaseDate>
      </ReleaseDate>
      <WithdrawnDate>
      </WithdrawnDate>
      <ProvenanceSourceID>1</ProvenanceSourceID>
      <ProvenanceName>Digital Preservation Department / The National Archives</ProvenanceName>
      <ProvenanceSourceDate>01 Feb 2007</ProvenanceSourceDate>
      <ProvenanceDescription>
      </ProvenanceDescription>
      <LastUpdatedDate>31 Oct 2022</LastUpdatedDate>
      <FormatNote>
      </FormatNote>
      <FormatRisk>
      </FormatRisk>
      <TechnicalEnvironment>
      </TechnicalEnvironment>
      <FileFormatIdentifier>
        <Identifier>audio/x-wav</Identifier>
        <IdentifierType>MIME</IdentifierType>
      </FileFormatIdentifier>
      <FileFormatIdentifier>
        <Identifier>fmt/142</Identifier>
        <IdentifierType>PUID</IdentifierType>
      </FileFormatIdentifier>
      <Developers>
        <DeveloperID>93</DeveloperID>
        <DeveloperName>
        </DeveloperName>
        <OrganisationName>Microsoft Corporation</OrganisationName>
        <DeveloperCompoundName>Microsoft Corporation</DeveloperCompoundName>
      </Developers>
      <Support>
        <SupportID>93</SupportID>
        <SupportName>
        </SupportName>
        <OrganisationName>Microsoft Corporation</OrganisationName>
        <SupportCompoundName>Microsoft Corporation</SupportCompoundName>
      </Support>
      <ExternalSignature>
        <ExternalSignatureID>787</ExternalSignatureID>
        <Signature>wav</Signature>
        <SignatureType>File extension</SignatureType>
      </ExternalSignature>
      <ExternalSignature>
        <ExternalSignatureID>788</ExternalSignatureID>
        <Signature>wave</Signature>
        <SignatureType>File extension</SignatureType>
      </ExternalSignature>
      <InternalSignature>
        <SignatureID>607</SignatureID>
        <SignatureName>Waveform Audio (WAVEFORMATEX)</SignatureName>
        <SignatureNote>RIFF header, WAVE ID, Format chunk, chunk length GTE 18, wformat Tag not equal to decimal 65534 = 0xFFFE and Data chunk. Since DROID cannot currently handle inverted (i.e. not equal to) sequences, the wformat chunk is not expressed in this signature. For fmt/143 the wformat tag = 65534 = 0xFFFE, so this is handled by setting an appropriate identification priority.</SignatureNote>
        <ByteSequence>
          <ByteSequenceID>752</ByteSequenceID>
          <PositionType>Absolute from BOF</PositionType>
          <Offset>0</Offset>
          <MaxOffset>0</MaxOffset>
          <IndirectOffsetLocation>
          </IndirectOffsetLocation>
          <IndirectOffsetLength>
          </IndirectOffsetLength>
          <Endianness>Big-endian</Endianness>
          <ByteSequenceValue>52494646{4}57415645666D7420[!10]{21-*}64617461</ByteSequenceValue>
        </ByteSequence>
      </InternalSignature>
      <RelatedFormat>
        <RelationshipType>Has lower priority than</RelationshipType>
        <RelatedFormatID>786</RelatedFormatID>
        <RelatedFormatName>Waveform Audio (WAVEFORMATEXTENSIBLE)</RelatedFormatName>
        <RelatedFormatVersion>
        </RelatedFormatVersion>
      </RelatedFormat>
      <RelatedFormat>
        <RelationshipType>Has lower priority than</RelationshipType>
        <RelatedFormatID>1502</RelatedFormatID>
        <RelatedFormatName>Broadcast WAVE</RelatedFormatName>
        <RelatedFormatVersion>0 PCM Encoding</RelatedFormatVersion>
      </RelatedFormat>
      <RelatedFormat>
        <RelationshipType>Has lower priority than</RelationshipType>
        <RelatedFormatID>1503</RelatedFormatID>
        <RelatedFormatName>Broadcast WAVE</RelatedFormatName>
        <RelatedFormatVersion>1 PCM Encoding</RelatedFormatVersion>
      </RelatedFormat>
      <RelatedFormat>
        <RelationshipType>Has lower priority than</RelationshipType>
        <RelatedFormatID>1505</RelatedFormatID>
        <RelatedFormatName>Broadcast WAVE</RelatedFormatName>
        <RelatedFormatVersion>0 MPEG Encoding</RelatedFormatVersion>
      </RelatedFormat>
      <RelatedFormat>
        <RelationshipType>Has lower priority than</RelationshipType>
        <RelatedFormatID>1506</RelatedFormatID>
        <RelatedFormatName>Broadcast WAVE</RelatedFormatName>
        <RelatedFormatVersion>1 MPEG Encoding</RelatedFormatVersion>
      </RelatedFormat>
      <RelatedFormat>
        <RelationshipType>Has lower priority than</RelationshipType>
        <RelatedFormatID>1507</RelatedFormatID>
        <RelatedFormatName>Broadcast WAVE</RelatedFormatName>
        <RelatedFormatVersion>2 MPEG Encoding</RelatedFormatVersion>
      </RelatedFormat>
      <RelatedFormat>
        <RelationshipType>Has priority over</RelationshipType>
        <RelatedFormatID>654</RelatedFormatID>
        <RelatedFormatName>Waveform Audio</RelatedFormatName>
        <RelatedFormatVersion>
        </RelatedFormatVersion>
      </RelatedFormat>
      <RelatedFormat>
        <RelationshipType>Is previous version of</RelationshipType>
        <RelatedFormatID>786</RelatedFormatID>
        <RelatedFormatName>Waveform Audio (WAVEFORMATEXTENSIBLE)</RelatedFormatName>
        <RelatedFormatVersion>
        </RelatedFormatVersion>
      </RelatedFormat>
      <RelatedFormat>
        <RelationshipType>Is subsequent version of</RelationshipType>
        <RelatedFormatID>654</RelatedFormatID>
        <RelatedFormatName>Waveform Audio</RelatedFormatName>
        <RelatedFormatVersion>
        </RelatedFormatVersion>
      </RelatedFormat>
      <RelatedFormat>
        <RelationshipType>Is subsequent version of</RelationshipType>
        <RelatedFormatID>784</RelatedFormatID>
        <RelatedFormatName>Waveform Audio (PCMWAVEFORMAT)</RelatedFormatName>
        <RelatedFormatVersion>
        </RelatedFormatVersion>
      </RelatedFormat>
      <RelatedFormat>
        <RelationshipType>Is subtype of</RelationshipType>
        <RelatedFormatID>654</RelatedFormatID>
        <RelatedFormatName>Waveform Audio</RelatedFormatName>
        <RelatedFormatVersion>
        </RelatedFormatVersion>
      </RelatedFormat>
    </FileFormat>
    <SearchCriteria>Criteria</SearchCriteria>
  </report_format_detail>
</PRONOM-Report>
