One thing about my GoPro HD Hero video camera that I've always unhappy with is wind noise. So today I tried using a small voice recorder taped to the rear of my M6 in conjunction with the GoPro (mounted on the left rear side window). This was I was able to get a sound recording right near the exhaust and out of the main airflow. I then combined the audio from the voice recorder to the video during editing. I suppressed the audio produced by the camera. However, I did use the camera audio to sync the audio from the voice recorder to the video source. I used the closing of the driver's door as the sound "marker". Once aligned, additional editing (to shorten the video) was easy.
Camera: GoPro HD Hero (with "BacPac" LCD screen)
Voice Recorder: Sony "IC Recorder" (internal mic used - no covering over the mic)
1) Yes, I know, the camera is not level.
2) I only was driving at "neighborhood" not warp speeds to there may well be a lot more wind noise at highway speeds.
3) I used flimsy blue painters tape which was able to hold the voice recorder in place at these modest speeds. During filming, I used more tape than is shown in the photo below.
During editing I could listen to either track (from the camera or the voice recorder) and it was like night and day.
Judge for yourselves - but I'm pretty happy with the results of this quick test video.
And of course, this approach could be used with any video camera (Drift, Contour, GoPro, etc.)