Hi, For some reason all of the PC audio cards only output a true 2 channels when using the optical connections. They will all pass through either Dolby digital or DTS digital signals through the 2 channels and then the Dolby and DTS encoders in an AVR will then convert it to a 5.1 or 7.1 stream to t...

Hello, I was wondering if it would be possible to construct a multi channel ADC that would accept at least 5.1 analogue audio inputs and output a true 5.1 digital audio signal via an optical cable using a Raspberry Pi as a starting point? So far I have been unable to find a PC audio card that output...