I posted a few days back as well unfortunately no fix that I've seen yet.
The sound FX came back randomly on game load (save was at the tieflings kids where you meet Wyll) and when it comes back it generally stays back as if it gets baked into the save file. My current save the sound is as it should be but if I create a new save the issue is there. Done reinstalls/verify (never any issues), different PC, nada works. Never had the issue until I decided to do a clean install for patch 7 since I hadn't since when the game released.
