Volume control on left channel only - Asus Xonar Essence STX & win7

[gthang78]

Volume control on left channel only - Asus Xonar Essence STX & win7

Hi all, this is my first post. Sorry that it's a request for assistance.

I have a problem with my self build HTPC.

In a nutshell (since yesterday) when I adjust the volume in a media player (winamp or Jriver) only the left channel changes in volume, the right channel remains at 100%.

Both channels were working OK (volume worked on L and R) however last night all of a sudden the right channel stopped altering. I have changed nothing, all cables and connections are sound. I've check everything I can think of within the software and searched on the web for similar problems and can't find a solution.

This is a screen capture of my windows audio controls. When I adjust the Jriver volume control both speakers change volume together (yet when I change them in the program only the left channel alters). When I change the "Speaker" control only the left channel changes.




Any ideas what I need to so to sort this? It's a critical function as it's a HTPC primarily used for music and video playback. Thank you very much


Edit to add;
Using a different sound card solves the problem, so it's definitely Xonar STX related.

 

[fireberd]

Reseat the Xonar sound card (with the PC powered off, unplug the card then plug back in). This may fix it. If not, reinstall the drivers for the sound card as a next step.

If it still does not work properly, I would suspect a hardware problem in the card.

 

[gthang78]

Thanks, I'll give those things a try. will report back

 

[gthang78]

Re installing the drivers sorted it. Strange how it changed over night I wonder what caused it? (rhetorical question)
Thanks for the suggestion.