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*).*
*Eugene Gekhter* / CEO (847) 272-8207/ [email protected] *Pixcel* Office: (800) 557-3508 3336 Commercial Ave. / Northbrook, IL 60062 http://www.pixcel.com On Tue, Jul 29, 2014 at 8:22 PM, Reuben Martin <[email protected]> wrote: > On Tuesday, July 29, 2014 07:35:54 PM Eugene Gekhter wrote: > > Thanks for responding. > > The use case is super 8mm film, which has a native frame-rate of 18 fps > > (typically). The high speed scanner scans 50 unique frames per second, > but > > ultimately the frames need to playback at 18 fps. Audio exists 30% of the > > time. > > Oh, I see. Well that's quite different. Does the audio even need to be > slowed > down then, or is it sampled at a faster rate also? If not, you might be > able > to use copy-stream on the audio. > > The slowmovideo software could also smoothly interpolate the video into a > more > standard frame-rate if you needed that. > > -Reuben > _______________________________________________ > ffmpeg-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user
