PlayDeviceAlpha

TAstaVoIPEndPoint

Declaration

   property PlayDeviceAlpha: Cardinal;

Decription

Lowers the audio volume in software way. Useful when sound mixing is 

required for many simultaneous active endpoints. You may use the same 

waveout device for all endpoint and control the result of hardware mixing 

by adjusting PlayDeviceAlpha. This scenario is ok when your audio driver 

is capable to share hardware device. Usually it is possible.