Thanks for your advice guys. I know, not wearing headphones was an amateur mistake. The issue was that it was my first “professional” wedding job and I was already stressed and bogged down with equipment, so I just didn’t want to add to the clunkiness. The headphones you brought up sound like a great solution though, and I will definitely look into it for the future. I think I pretty much “solved” the problem: I ran a AUlowpass filter on the clip through Final Cut, cutting the frequency off at 4000. This seems to greatly undercut the buzzing noise. The audio sounds more tinny of course and not nearly as deep, but at least the buzzing is pretty much entirely gone. As far as I’m concerned, some less than stellar audio is better that unusable audio. I was wondering if this means anything to anyone, does it indicate what the problem may have been? I’m assuming the buzzing was occurring as the volume of the vocalist mic hit a higher end frequency.