I finally got some reasonable audio on 3 video clips (took these on the way to work this morning). Simple solution was to just remove my phone from its protective case.
Probably the most accurate sounding is #3. These are all pretty short videos. car is at the shop that I usually go to when it is something that I don't want to deal with myself, or something that needs more diagnostics that I can do. They already told me that if it is a supercharger specific issue that they will have to send me elsewhere. Well, since it happens when the supercharger kicks in, it could mean a visit to the (gasp) dealership.
Video 1 - This one sounds more like exhaust noise in the video, and isn't very accurate, but I included it anyway)
