After I use Melodyne to adjust pitch on a mono vocal clip, I freeze that clip (to conserve resources), and I end up with what looks like a stereo clip. It still sounds like a mono clip, and the level is the same as before, but the waveform now has left & right components. So I suppose this doesn't really matter, but I'd like to know: How do I convert this back to a regular mono clip? Also, how do I edit pitch in Melodyne without this happening?