Microsoft Speech SDK
SAPI 5.1
ISpAudio::SetBufferInfo
ISpAudio::SetBufferInfo sets the audio stream buffer information.
HRESULT SetBufferInfo(
const SPAUDIOBUFFERINFO *pBuffInfo
);
Parameters
- pBuffInfo
- [in] Pointer to the SPAUDIOBUFFERINFO buffer providing the requested settings.
Return values
| Value | Description |
|---|---|
| S_OK | Function completed successfully. |
| SPERR_UNINITIALIZED | Audio stream not initialized. |
| E_INVALIDARG | pBuffInfo is invalid or the parameters do not meet the criteria described above. |
| SPERR_DEVICE_BUSY | Audio device is not in the SPAS_CLOSED state. |
| FAILED(hr) | Appropriate error message. |
Remarks
This method can be called only when the audio device is in the SPAS_CLOSED state. The SPAUDIOBUFFERINFO members must conform to the following restrictions:
| SPAudioBufferInfo.ulMsMinNotification cannot be larger than one quarter the size of SPAudioBufferInfo.ulMsBufferSize and must not be zero. |
| SPAudioBufferInfo.ulMsEventBias cannot be larger than SPAudioBufferInfo.ulMsBufferSize. |
| SPAudioBufferInfo.ulMsBufferSize must be greater than or equal to 200 milliseconds. |