2018-11-19 9:14 GMT+01:00, 林至善 <[email protected]>: > Hi all, > > I need a down-sampled(=8kHz) version of my input.wav file (=16kHz). > > According to > https://trac.ffmpeg.org/wiki/FFmpeg%20and%20the%20SoX%20Resampler, > I use the command below > > ffmpeg -i In16k.wav -af aresample=resampler=soxr -ar 8000 Out8k.wav
Please always provide the command line you test together with the complete, uncut console output when asking for support here. > It works well, but I found that every time I run the command above, > it returns the "Out8k.wav" with a slightly different(in PCM value). > > The question is : > *Is the difference I found a normal phenomenon? > *If I want a resampler which always returns the same result, how can I do? FFmpeg's default resampler is deterministic. Carl Eugen _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
