DraStic

I'm trying to play pokemon diamond and the sound quality it terrible. Everything sounds like its in a blender. I've tried other emulators, retroarch has the same audio problem but melonDS does not.
I will say the last time I played, the sound was fine but now it's unplayable. I'm not sure if there was an update that changed something. I've tried changing all sorts of settings and nothing got better, only worse.
Has anybody had a similar issue?