Why does my audio keep reverting to stereo?

Posted by GraemeF on Super User See other posts from Super User or by GraemeF
Published on 2009-11-29T14:32:49Z Indexed on 2010/03/13 15:05 UTC
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Filed under:

audio

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dolbydigital

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windows-7

I have an ASUS P7P55D LE motherboard with onboard sound and I am running Windows 7 64-bit, and I am using the SPDIF output from my motherboard to my receiver. On my receiver I can see which audio channels are in use (i.e. stereo or 5.1)

In the audio interface properties I can test DTS Audio and Dolby Digital outputs and both work fine, but when I try to play a game with 5.1 sound (I've tried Left 4 Dead and Dragon Age Origins) it reverts to stereo. I was getting this behaviour with the default Microsoft drivers so I installed the latest from the ASUS website but there is no difference.

I notice that in the Advanced tab the Default Format only allows me to choose from various 2 channel formats so maybe that is something to do with it?

How can I get 5.1 output all of the time?

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