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Dolby Digital only plays in mono win 7 help

Last response: in Home Audio
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December 24, 2011 1:30:46 AM

Hello,

I recently bought a Tritton AX 720 so that I could use it with my Xonar D1 audio card. everything is plugged into the right port but most everything on my computer seems to be in mono. the only place I do have 5.1 surround is in the Xonar D1 audio center. I can unplug the SPDIF optical cable and the sound will still play so it seems that the audio is not being sent via the SPDIF port at all.

SPECS:
Xonar D1 ASUS audio card

Windows 7

Tritton ax 720 headphones

Intell i7 CPU

all help is appreciated. I have been trying to figure this out all day. :pt1cable: 
December 24, 2011 1:40:22 AM

in the xonar audio center, is spdif checked and set to PCM?

try disabling other playback devices in Windows Audio settings to make sure audio is getting only through spdif

I dont really trust Windows test, so try some movies in 5.1 to make sure it is working properly
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December 24, 2011 2:08:33 AM

ok. good news. I got VLC to play a movie in SPDIF mode and it had surround but all other programs try to use a different output method. I need a way to force everything to SPDIF. all other audio devices are disabled.

EDIT: PS. the comp installs USB drivers for the Headphone decoder box and tries to play audio through them.
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December 24, 2011 3:04:45 AM

VLC plays SPDIF audio whether or not the Xonar D1 audio center is set to PCM or Dolby digital.
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December 24, 2011 6:59:02 AM

I still have no solution. Though, some games report that they cannot find an audio source to output to. (all disabled except SPDIF) when I did have audio in games all the sound came from a single point which sounded like it was on top of my head.

Edit: the green bar next to the icon that indicates that widows is outputting to SPDIF moves.
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December 24, 2011 8:27:30 AM

well it appears that I have solved my problem. found my solution here
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December 25, 2011 1:42:12 AM

nice to know it

had this issue with one HDAV1.3 deluxe but solved it using the analog outputs
will try the solution you found and see what happens
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December 25, 2011 4:39:01 AM

Happy holidays and best of luck.
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!