Audio: system default. Ai spotter voice changed.

ive had it set to system default, but now it won't give audio to my headphones unless I change it manually to my headphones as output. same with the spotter. but when I changed the spotter to my headphones, his voice changed or at least it got a lot raspier (more radio frequency). I don't like it... i still have the ai spotter voice set to default so I don't know what changed... any one else experienced this and found a fix?