For the time being I've had to just use that spatial audio pack.

It makes sound effects and combat sounds sound like crap compared to what they once were, but the stuttering now only seems to be during loading screens
It allowed me to actually "play" for now as I'm able to get used to the changed sounds way faster then listening to random crackling
However not everywhere is fixed, and inside my house the Orchestron is always distorted no matter where I move or look around with the camera. Still though having no word from Square is disheartening.

Still more and more people are coming forward with these audio issues.
I was telling folks this thread was nearing 500 posts but here we are now up to 640ish, and there's more and more bug reports every day.