I don't really get stuttering, just after a while BGM will somehow manage to garble itself and stay garbled until I make the music change (i.e. zoning, changing from day to night, fighting a battle, etc.).
It's really weird, though. I wasn't having this issue AT ALL, literally no instances of it of any kind, for the first 8 or so hours of the game. Now I'm getting audio garbling all the time, like every few minutes at best.
Not really sure I understand why.
Oh, and it's not all audio. It doesn't garble voices or sound effects usually. Just BGM.