<?xml version="1.0" encoding="utf-8"?>
<PRONOM-Report xmlns="http://pronom.nationalarchives.gov.uk">
  <report_format_detail>
    <FileFormat>
      <FormatID>2098</FormatID>
      <FormatName>NCH Dictation Audio File</FormatName>
      <FormatVersion>
      </FormatVersion>
      <FormatAliases>
      </FormatAliases>
      <FormatFamilies>
      </FormatFamilies>
      <FormatTypes>Audio</FormatTypes>
      <FormatDisclosure>
      </FormatDisclosure>
      <FormatDescription>DCT is a proprietary audio file format developed by NCH Software for their dictation software. As well as audio data, .dct files also contain dictation header information and can be encrypted.</FormatDescription>
      <BinaryFileFormat>
      </BinaryFileFormat>
      <ByteOrders>
      </ByteOrders>
      <ReleaseDate>
      </ReleaseDate>
      <WithdrawnDate>
      </WithdrawnDate>
      <ProvenanceSourceID>220</ProvenanceSourceID>
      <ProvenanceName>The Church of Jesus Christ of Latter-Day Saints / The Church of Jesus Christ of Latter-Day Saints</ProvenanceName>
      <ProvenanceSourceDate>18 Jan 2020</ProvenanceSourceDate>
      <ProvenanceDescription>
      </ProvenanceDescription>
      <LastUpdatedDate>18 Jan 2020</LastUpdatedDate>
      <FormatNote>
      </FormatNote>
      <FormatRisk>
      </FormatRisk>
      <TechnicalEnvironment>
      </TechnicalEnvironment>
      <FileFormatIdentifier>
        <Identifier>fmt/1280</Identifier>
        <IdentifierType>PUID</IdentifierType>
      </FileFormatIdentifier>
      <ExternalSignature>
        <ExternalSignatureID>2354</ExternalSignatureID>
        <Signature>dct</Signature>
        <SignatureType>File extension</SignatureType>
      </ExternalSignature>
      <InternalSignature>
        <SignatureID>1656</SignatureID>
        <SignatureName>NCH Dictation Audio File</SignatureName>
        <SignatureNote>Format consists of header, then RIFF WAVE audio data, which can be PCM or MP3. The audio data may also be encrypted, in which case the RIFF chunk is not visible, but a flag is set. The file may also include a transcription file, again for which a flag is set.</SignatureNote>
        <ByteSequence>
          <ByteSequenceID>1927</ByteSequenceID>
          <PositionType>Absolute from BOF</PositionType>
          <Offset>0</Offset>
          <MaxOffset>1024</MaxOffset>
          <IndirectOffsetLocation>
          </IndirectOffsetLocation>
          <IndirectOffsetLength>
          </IndirectOffsetLength>
          <Endianness>
          </Endianness>
          <ByteSequenceValue>003200000000(01|52494646)</ByteSequenceValue>
        </ByteSequence>
      </InternalSignature>
      <RelatedFormat>
        <RelationshipType>Has lower priority than</RelationshipType>
        <RelatedFormatID>737</RelatedFormatID>
        <RelatedFormatName>WordPerfect for MS-DOS/Windows Document</RelatedFormatName>
        <RelatedFormatVersion>5.1</RelatedFormatVersion>
      </RelatedFormat>
      <RelatedFormat>
        <RelationshipType>Has priority over</RelationshipType>
        <RelatedFormatID>687</RelatedFormatID>
        <RelatedFormatName>MPEG 1/2 Audio Layer 3</RelatedFormatName>
        <RelatedFormatVersion>
        </RelatedFormatVersion>
      </RelatedFormat>
    </FileFormat>
    <SearchCriteria>Criteria</SearchCriteria>
  </report_format_detail>
</PRONOM-Report>
