I found out that that happens when the glass isn’t sealed tightly to the frame. In my case I messed up the adhesive on one of the corners when reinstalling the screen and it didn’t seal tightly. The glass being properly held down is what stops the distortion. When playing back without the screen sealed it will distort and this is normal.

I wanted to replace it because it just wasn’t as loud as it used to be but when I put the new speaker in I noticed that it made the sound all distorted at more than about half volume so I took it out and put the old one back in and now it’s doing the same thing too!! Help!