Same. No amount of fiddling fixes it. Affects half my outfit, strangely not all of them. Earlier today, using my proximity voice bound key instead activated platoon talk. That fixed itself after a while and a reboot, but ingame voice remains borked. It's totally unintelligible.
Try doing what I did 1. Disable comms 2. Logout 3. Login and wait about 3-5 min 4. Enable comms This worked for most of us. If you are still short comms (such as squad), disable and re-enable again. Good luck!