SpMMAudioOut

The SpMMAudioOut automation object supports audio implementation for the standard Windows wave-out multimedia layer.

The SpMMAudioOut automation object has the following elements:

Properties	Description
BufferInfo Property	Returns the audio buffer information as an ISpeechAudioBufferInfo object.
BufferNotifySize Property	Gets and sets the audio stream buffer size information.
DefaultFormat Property	Returns the default audio format as an SpAudioFormat object.
DeviceId Property	Gets and sets the multimedia device ID being used by the audio object.
EventHandle Property	Returns a Win32 event handle that applications can use to wait for status changes in the I/O stream.
Format Property	Gets and sets the cached wave format of the stream as an SpAudioFormat object.
LineId Property	Gets and sets the current line identifier associated with the multimedia device.
MMHandle Property	Returns the handle of the multimedia audio device stream.
Status Property	Returns the audio status as an ISpeechAudioStatus object.
Volume Property	Gets and sets the volume level.

Methods	Description
Read Method	Reads data from the audio stream.
Seek Method	Returns the current read position of the audio stream in bytes.
SetState Method	Sets the audio state with a SpeechAudioState constant.
Write Method	Writes data to the audio stream.