(09-23-2016, 06:59 AM)hyperspeed Wrote: I notice that turning off Speed Up Disc Transfer helps a lot to prevent the BGMs from playing, unfortunate disable it won't fix it the issue may happen sometimes yet, with Speed Up Disc Transfer ON it happens a lot, I think it because dolphin is loading the next area too fast, so the game can't even read the BGM
That would make sense. I haven't heard of this happening with Metroid Prime, but I know that several other games have very similar behavior. I don't know why turning it off doesn't fix it completely, though...
If you want to, you can test disabling dual core.