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ISpAudio::SetBufferInfo (SAPI 5.3)

  • Article

Microsoft Speech API 5.3

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
S_OK
SPERR_UNINITIALIZED
E_INVALIDARG
SPERR_DEVICE_BUSY
FAILED(hr)

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.