I was playing pub and everything was working then there was a host migration , the. The Xbox froze ( first time ever) then turned it back on I and I get a loud buzzing in the headset, I can hear people talk and I can talk but there is no game volume or sound just a screeching sound. It was working fine before that and it very new .....
Happened to me once when I turned my xbox on it was making a horrible noise. I just turned the xbox off, unplugged EVERYTHING and reconnected it all back up. Turned the xbox on again and all was sweet.