I just purchased a SteelSeries Siberia V2 Arctic USB Headset, and the audio quality is fantastic for both input and output unless I'm playing a video game.
The sound quality will drop as if the bandwidth is being limited, causing a sort of hissing noise and lowered voice quality, which is especially hard on friends I'm communicating with on Skype or Mumble.
Previously I was using 3.5mm headsets through an external Sound Blaster audio card which fixed the issue for those headsets. Which means that it's probably not the game that is causing the problem.
Is there any way to reproduce this kind of fix or maybe solve the issue in general?