Microsoft Speech SDK
SpMMAudioOut
The SpMMAudioOut automation object supports audio implementation for the standard Windows wave-out multimedia layer.
Automation Interfaces
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. |