I've been using the headset adapter with my TB X12's for quite some time now and have had no issues, until about 3 days ago. In party and game chat, now Xbox will not pick up my voice unless I am near yelling, and all of my friends say the quality is so bad they can barely understand me.
Nothing has changed, no updates that I am aware of, nothing. It just randomly stopped working properly.
I updated my controller and have tried new batteries, and a fully charged rechargable battery pack but still get an issue.