[SOLVED] Sound card through HDMI

Solution
So you want audio in another room and trying to use the Hdmi cable, don't see this as being practical. Monitor audio might not even work without a picture signal. It'll be easier just to solder audio jacks at each end of a network cable and use this to a set of speakers in the other room.
Do you mean sound card as in from the graphics card? Or an actual sound card with analog jacks?

If you meant graphics card audio via Hdmi to multiple monitors, then it might be possible if you own an Nvidia card, Amd should have something similar. Look under Configure Surround, PhsyX in NvidiaCP and check Span displays with surround and configure. I'm not sure what other settings are there, hopefully if you do have an Nvidia or Amd card it can do multiple audio streams.
 
So you want audio in another room and trying to use the Hdmi cable, don't see this as being practical. Monitor audio might not even work without a picture signal. It'll be easier just to solder audio jacks at each end of a network cable and use this to a set of speakers in the other room.
 
Solution