So I recorded a concert last night and I need some help processing the audio. I recorded 24/48; here's a link to 128k mp3. Skip ahead to 1:45 and you'll hear the right signal break up and buzz. How can I fix this? Are there any other ways I can generally improve audio recorded from a concert like this? Any settings I should change on the zoom for future recordings? Do I need to stretch/shrink the audio at all to sync with 24fps video? Thanks for your help!