Thanks. I also figured I need some footage shot from the ground (without music or people cheering). Anything shot with a helm-mounted camera will be mostly wind noise.
I just hoped someone, somewhere, had already put some effort into isolating the sound from a video, and put it in a small separate file.
I tried to find some decent videos on skydivingmovies, but the base section consists mainly of movies by the jumpers..
I'll just continue my search until I get lucky, or mayby I will have to get me one of these parabolic microphones and do it myself..