Jeremy: That image doesn't work...
It's certainly interested if it is corrupted though, but I would find that very strange. [edit=1]Got it to load now. I'm by no means skilled in audio editing, but does that sound really look different from most other sounds? The few sound curves I've seen seem to look quite a lot like that, IIRC. But as I said, I don't know much about sounds[/edit]
Some of the curves in that sound file are quite rough. Much rougher than normal audio...