Amazed that the sound does not seem to include comments until well after the accident
A couple of the posters over on the R & N forum (and the thread there regarding this crash) know a bit about cameras, mics, and audio clipping of dashboard cameras. Their explanation helps clarify why you hear the impact but not a lot else on the video clip.
Old Fella: thank you sir.
Just to be clear, I have not posted any video, but I am grateful to those who posted the links here.
One might ask: how did that video get out of that camera and onto the web so quickly?

I wonder if anyone is in trouble over that.
LiveLeak is well named.