MattUF

Thanks, just went solo (that was my 2nd session I believe) so I'm trying to work out the fastest line since it isn't always the DE line . Understandable about wheat swaying, I need to invest in better seats/harness to keep me upright.

TXE36

How's this:
The camera is not a Gopro, but the theory is the same. The trick is a microphone mounted to the rear license plate frame. As long as your camera has an external microphone input, this should work. One thing I've been meaning to add is a second channel for the instructor chat, you don't get any interior sound with this setup.

I did a long write up about it here: DIY Economical Track Camera With Good Sound

One warning, you will get wind noise if you are going backwards at high speed: Hey, I got a "its good" goal sign from the T3 flag station for keeping it on the track

-Mike

dacbap

Hero 2 (not sure about 3's) have an external microphone plug, try the Olympus ME-51S Stereo Microphone, along with Cables To Go CTG 12ft 3.5MM STEREO AUDIO EXTENSION CABLE M/F off Amazon, (recommended stereo microphone) you will have to drill the plastic case to plug in, run the wire to the engine bay or rear license plate for the exhaust sounds, better than all the wind noise.

Courtshark

Just behind front left tire


Just behind driver's door

I tried several locations. The above two are my favorite.

Audio Technica external mic, mounted near the exhaust. Still picks up some wind noise from time to time, but that's because I probably didn't fully secure it to the body as well as I'd have liked.