If the build number is show in the upper left corner it the 0.9.3602.45. I check the audio before and after it in the middle when i start the game but once i get back to title screen but will go to the far right.
this is also happening to me, I'm on w10 with the latest build and anytime I open the game, the audio crashes creating the most awful earrape I could ever suffer, at the beggining it was just a bit louder, but everytime I reopen the game, the music gets louder. Luckily by just entering the sound menu it fixes, but I always get scared when I open it. I could record a video and upload it to see if you could know what's happening...
Besides this, the game is incredible and I'm enjoying it a lot!