On Thu, Jan 26, 2017 at 20:56:48 -0700, JD wrote: > Have a video in which the audio's pitch (and speed) are just slightly > higher than normal. > How can I reduce the pitch and speed in small increments until I get it > right?
The asetrate filter is designed for that: https://ffmpeg.org/ffmpeg-filters.html#asetrate Unfortunately, it doesn't take the input rate as a variable, but if you know your input is 48000 Hz, you can do: $ ffmpeg -i video.mp4 -af asetrate=47000 -c:v copy -c:a aac output.mp4 If the output audio stream needs to be 48000 (or something "standard" again, you have to resample: $ ffmpeg -i video.mp4 -af asetrate=47000,aresample=48000 -c:v copy -c:a aac output.mp4 Hope this helps, Moritz _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
