That is me. No remote mic, just a non-HD Helmet Hero camera. The HD one, which I use now, makes the sound a little more sedate.
Here are a couple of videos from last year with the HD camera-
Mosport (some of the video is swiped from first practice so may I seem like I am taking it easy)-
[video]http://www.youtube.com/watch?v=Lkv69uRQkdA[/video]
Racing and falling down at- Mid-Ohio-
[video]http://www.youtube.com/watch?v=WAWJYofSPvY[/video]
I think I am going the fastest actually here, at Roebling Road with old camera mounted, skip the first lap....
[video]http://www.youtube.com/watch?v=EuYrHKk9STA[/video]