On Mon, Oct 18, 2010 at 9:26 AM, Rogan Creswick <cresw...@gmail.com> wrote: > I have a video of a talk that is spattered with very loud, > ear-wrenching, bursts of static at random intervals. There are quite > a few of these bursts (on average, probably one every 20-30 seconds), > and they are at least one order of magnitude louder than the important > audio. I would at least like to make it possible to > listen to the stream without blasting static randomly.
Enough muddling around with Audacity and ffmpeg turned up an acceptable answer -- noise reduction (for background noise) and compression (to reduce the peaks of the bursts of static) and the audio is now something you can listen to without auditory agony ;) Thanks for the suggestions! (Many of which came off-list.) --Rogan > Does anyone know how to do this? I've stripped the audio and played > with it in audacity, but I don't know enough to make the options do > what needs done -- the best I've been able to do is to generate a > noise profile for a section of static, then use that to reduce the > static of each individual section. This requires manually selecting > the portion of the audio wave that corresponds to the burst of static > and re-running the noise filter for *every* burst. That simply > doesn't scale to the full length of the video--it would be easier to > simply re-record the talk (which would loose audience commentary, > etc...). > > I would be very appreciative of any suggestions or pointers to audio > editing communities that may be able to help. I also have a short > sample of the video I could share off-list if you'd like to take a > closer look. > > Thanks! > Rogan > _______________________________________________ PLUG mailing list PLUG@lists.pdxlinux.org http://lists.pdxlinux.org/mailman/listinfo/plug
