At some points in my recording, when the singer ups his volume for a phrase or line, it sounds like the music behind it is being muffled, and sounds like if some one were covering the speaker with their hand and then removing it, if you know what I mean. Obviously the speaker has to be hand size, but you know what I mean. Any idea on how I can fix this? Anything to do with the attack and release times maybe? Its a multiband compressor btw.