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Sets the volume (amplitude) of the audio signal.
HRESULT put_Volume( long lVolume );
Parameters
- lVolume
- [in] Value to which to set the
Volumeproperty. The allowable
input range is –10,000 to 0.
Return Values
Returns an HRESULTvalue. E_INVALIDARG is returned for values outside the allowable input range and E_FAIL is returned if the underlying device returns an error.
Remarks
Full volume is 0, and –10,000 is silence; the scale is logarithmic. Multiply the desired decibel level by 100 (for example –10,000 = –100 dB).