Microsoft Speech SDK

SpeechAudioFormatType Enum

The SpeechAudioFormatType enumeration lists the supported stream formats.

These enumeration elements are all common audio formats ranging from the uncompressed PCM formats to highly compressed formats. They are available as standard formats on the Windows operating systems and are supported by SAPI 5.

Definition

Enum SpeechAudioFormatType
    SAFTDefault = -1
    SAFTNoAssignedFormat = 0
    SAFTText = 1
    SAFTNonStandardFormat = 2
    SAFTExtendedAudioFormat = 3

    // Standard PCM wave formats
    SAFT8kHz8BitMono = 4
    SAFT8kHz8BitStereo = 5
    SAFT8kHz16BitMono = 6
    SAFT8kHz16BitStereo = 7
    SAFT11kHz8BitMono = 8
    SAFT11kHz8BitStereo = 9
    SAFT11kHz16BitMono = 10
    SAFT11kHz16BitStereo = 11
    SAFT12kHz8BitMono = 12
    SAFT12kHz8BitStereo = 13
    SAFT12kHz16BitMono = 14
    SAFT12kHz16BitStereo = 15
    SAFT16kHz8BitMono = 16
    SAFT16kHz8BitStereo = 17
    SAFT16kHz16BitMono = 18
    SAFT16kHz16BitStereo = 19
    SAFT22kHz8BitMono = 20
    SAFT22kHz8BitStereo = 21
    SAFT22kHz16BitMono = 22
    SAFT22kHz16BitStereo = 23
    SAFT24kHz8BitMono = 24
    SAFT24kHz8BitStereo = 25
    SAFT24kHz16BitMono = 26
    SAFT24kHz16BitStereo = 27
    SAFT32kHz8BitMono = 28
    SAFT32kHz8BitStereo = 29
    SAFT32kHz16BitMono = 30
    SAFT32kHz16BitStereo = 31
    SAFT44kHz8BitMono = 32
    SAFT44kHz8BitStereo = 33
    SAFT44kHz16BitMono = 34
    SAFT44kHz16BitStereo = 35
    SAFT48kHz8BitMono = 36
    SAFT48kHz8BitStereo = 37
    SAFT48kHz16BitMono = 38
    SAFT48kHz16BitStereo = 39

    // TrueSpeech format
    SAFTTrueSpeech_8kHz1BitMono = 40

    // A-Law formats
    SAFTCCITT_ALaw_8kHzMono = 41
    SAFTCCITT_ALaw_8kHzStereo = 42
    SAFTCCITT_ALaw_11kHzMono = 43
    SAFTCCITT_ALaw_11kHzStereo = 4
    SAFTCCITT_ALaw_22kHzMono = 44
    SAFTCCITT_ALaw_22kHzStereo = 45
    SAFTCCITT_ALaw_44kHzMono = 46
    SAFTCCITT_ALaw_44kHzStereo = 47

    // u-Law formats
    SAFTCCITT_uLaw_8kHzMono = 48
    SAFTCCITT_uLaw_8kHzStereo = 49
    SAFTCCITT_uLaw_11kHzMono = 50
    SAFTCCITT_uLaw_11kHzStereo = 51
    SAFTCCITT_uLaw_22kHzMono = 52
    SAFTCCITT_uLaw_22kHzStereo = 53
    SAFTCCITT_uLaw_44kHzMono = 54
    SAFTCCITT_uLaw_44kHzStereo = 55
    SAFTADPCM_8kHzMono = 56
    SAFTADPCM_8kHzStereo = 57
    SAFTADPCM_11kHzMono = 58
    SAFTADPCM_11kHzStereo = 59
    SAFTADPCM_22kHzMono = 60
    SAFTADPCM_22kHzStereo = 61
    SAFTADPCM_44kHzMono = 62
    SAFTADPCM_44kHzStereo = 63

    // GSM 6.10 formats
    SAFTGSM610_8kHzMono = 64
    SAFTGSM610_11kHzMono = 65
    SAFTGSM610_22kHzMono = 66
    SAFTGSM610_44kHzMono = 67

    // Other formats
    SAFTNUM_FORMATS = 68
End Enum

Remarks

SAFTNonStandardFormat

SAFTNonStandardFormat is a non-SAPI 5 standard format without a WAVEFORMATEX description.

SAFTExtendedAudioFormat

SAFTExtendedAudioFormat is a non-SAPI 5 standard format but has WAVEFORMATEX description.