Pro Audio Support

Q:
I am playing AC-3 or surround sound data from a software application on my computer, sending the data from Audiophile USB S/PDIF Out to my home theater’s AC-3 decoder. However, the decoder does not recognize the signal and therefore refuses to put out any audio.
 
A:
There is a bit within the S/PDIF digital audio stream that
defines the S/PDIF content as audio or non-audio. Most AC-3 surround
sound decoders expect this setting to be non-audio and will otherwise
reject the information. Go to the S/PDIF page of the Audiophile USB
Control Panel, select Consumer and Advanced Settings, and then select
“DD/DTS Pass-Thru.”