Windows Media Audio 9 Voice Codec
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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 Vista or Windows XP.
Header: Include wmcodecdsp.h.
Library: Use wmspdmoe.dll for the encoder or wmspdmod.dll for the decoder.
See Also