Tom's Hardware > Forum > CPU & Components > Sound Cards > Connecting PC to A/V Receiver
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sac_otter   03-01-2009 at 10:03:38 PM

Sorry for the redundancy as I'm sure this question has been asked numerous times. I'm trying to connect my PC to my A/V receiver using the S/PDIF out (digital coaxial) on my sound card to the digital coaxial in on the receiver. Stereo sound comes through nicely but I am unable to get 5.1 to come through even when playing a 5.1 source (DVD, etc.). The front of my receiver indicates that a PCM signal is coming through. Any ideas? Help is much appreciated.

Equipment:
Yamaha RX-V363 A/V receiver
Diamond Xtreme Sound 7.1 sound card

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festerovic   03-04-2009 at 01:45:53 AM
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I seem to recall having to do this:
set the sound in windows to 2 channel
make sure the audio source is 5.1
make sure you don't have something like AC3filter changing the mix from 3/2 to 2.0 or such

I think that you have to make sure windows isn't trying to do the decoding of the 5.1, it just needs to pass the DD through the SPDIF. And in that case, SPDIF is really 2 channel. The receiver should receive the DD stream within the 2 channels, and decode it to 5.1.

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sac_otter   03-04-2009 at 02:30:57 AM
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Thanks... doing that plus using an open source driver I found did the trick!!
Much appreciated!

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