I'm not sure when this started, but it's been going on for awhile. Both with my SteelSeries 5H headset, and now with my Razer Megalodon. Whenever I speak in a VOIP program, everyone else can hear what I'm hearing in my headset (ie: gunshots, screams, and the likes), and I have no idea how to fix this issue.
Any help would be appreciated. I really need to solve this, as it's starting to piss off quite a few of my friends. q:
It may not say exactly Onboard Sound... look for onboard Audio or Audio Codec. It sounds like you have a Realtek HD audio codec onboard. Unless you're connecting through it, changing it's settings will have absolutely no effect. Ensure the mic isn't also acting as a playback device.
I think we've ran through just about all that can be done. I know I can't think of anything else.
Actually, if it used to work and now doesn't, try deleting all your sound card drivers, etc. (you can leave the audio codecs, but get the other stuff gone.) Make sure anything from your USB headphones is gone as well. Reboot and windows should find your sound card and load the drivers. Hopefully the problem will be solved.