On Wednesday, July 30, 2014 07:02:49 AM Eugene Gekhter wrote: > In my avisynth workflow, I stretch the audio to 36% of its original rate to > get it to play at the right speed and with perfect sync with the video, > something like video.*assumefps(*18*)*.*TimeStretch(*rate=36*).*
In ffmpeg you would normally use a filter called "atempo". However, this much stretching is beyond the range on what it can handle. (it's range is 0.5 - 2.0) If you want to use an ffmpeg workflow, your best bet is to split the audio off into a separate file and process it with rubberband, and then splice it back in with the stretched video. -Reuben _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user
