Windows Media Audio 9 Voice Codec

The Windows Media Audio 9 Voice encoder object is instantiated using the class identifier CLSID_CWMSPEncMediaObject2. The decoder object is instantiated using the class identifier CLSID_CWMSPDecMediaObject. Windows Media Audio 9 Voice encoded content is identified by the audio tag 0x00A.

Encoder Properties

The Windows Media Audio 9 Voice encoder object supports the following properties.

Property Description
MFPKEY_WMAVOICE_ENC_BufferWindow Specifies the buffer window value, in milliseconds, used for the voice codec.
MFPKEY_WMAVOICE_ENC_EDL Specifies the portions of content to be encoded as music by the voice codec.
MFPKEY_WMAVOICE_ENC_MusicSpeechClassMode Specifies the mode of the voice codec.

Requirements

Client Requires Windows XP, Windows Vista, or Windows 7.
Header Declared in Wmcodecdsp.h.
Library Use Wmspdmoe.dll for the encoder or wmspdmod.dll for the decoder.

See Also

Codec Objects
Using the Windows Media Audio 9 Voice Codec

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Build date: 1/27/2009