I use two setups for gaming:
1.) I use a pair of Turtle Beach X12 for XBOX gaming as they sound pretty good and more importantly can be broken without me feeling too bad. These have to be plugged into my TV's audio inputs first then the XBOX left and right channels stack onto those. The USB power must be plugged into the front of the XBOX to power the amp on the headset. The mini-mini plug runs from the amp to the controller for headset control. I have no issues with this setup.
2.) This setup excludes the use of a mic, but gives much better audio quality. I first run the audio outs from the XBOX ( red and white connectors ) to my TV. I then run the audio outs or headphone jack from the TV into my TEAC amp. Finally I plug a pair of my favorite headphones into the headphone jack and mute the speakers.
If you are getting no sound at all I suspect something pretty obvious that we should be able to help you with.
Would you please describe exactly how you run the connectors from your XBOX to your TV/Stereo and then how the signal from your TV/Stereo goes to your headphones? Pictures may be useful as well.
From the looks of the Syba SD-CM-UAUD USB you plug that into a USB port on the PS3 and then plug your headphones into the green jack on the Syba. You then run a MIC into the other jack ( red ). Is this how you have your setup?
Edited by NA Blur - 11/1/12 at 8:24am