SPDIF (Digital Audio) ControlsIf your system supports SPDIF (Digital Audio), there will be an Advanced Controls button under the Master volume control. This button will display the SPDIF controls.
| 
|
AC3Check this box if you have a digital receiver that accepts DVD audio.
|
|
|
PCM Check this box if you want all computer sounds and music, such as WAV files, MP3, CD, and game audio, to play out of your digital speakers.
|