Thanks. Is it okay if I push a patch for this? How high of a limit does the algorithm support today?
Sent from my iPhone > On Jun 4, 2018, at 8:00 PM, Pavel Koshevoy <pkoshe...@gmail.com> wrote: > >> On 06/04/2018 12:09 PM, Ronak wrote: >> Hello, >> >> How are you all? >> >> We are looking to use the atempo filter for our audio files. However, the >> limit between 0.5 - 2x is too restrictive for us. We would like to expand >> the limit to 0.5x - 3x. >> >> I tried changing the range in atempo.c and the rest of the tempo filter just >> worked. >> > > Going below 0.5 is likely not going to sound good. Going above 2.0 should be > fine. The reason for current [0.5, 2.0] range is mostly for symmetry. > atempo=0.5 followed by atempo=2.0 should sound like original audio. This > should also point you to an alternative solution -- put 2 atempo filters one > after another to achieve tempo greater than 2 (atempo=2.0,atempo=1.5), or > like this: > > ffmpeg -i /scratch/Music/02\ Feeling\ Good.mp3 -af > 'atempo=sqrt(3.0),atempo=sqrt(3.0)' -y /tmp/tempo-3x.wav > > Pavel. > > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
