The SetQuality method sets the quality of the environmental reverberation effect. Higher values produce better quality at the expense of processing time.
HRESULT SetQuality( LONG lQuality );
If the method succeeds, the return value is DS_OK. If the method fails, the return value may be DSERR_INVALIDPARAM.
Header: Declared in Dsound.h.
Import Library: Use Dsdmo.dll.