The audio problems are stereo in nature, so I don't think it's the microphone or the rest of the initial recording chain. It seems like there is something weird happening when it was edited, or it might be some weird codec thing, which I don't know anything about because I'm an audio guy. At 1:20, with the word 'tract', the right side is clipping on the top, while the left side is clipping on the bottom. This is seriously weird. Hope you guys figure it out.