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(FFmpeg) How to Change the Pitch / Sample Rate of an Audio ...
http://johnriselvato.com/ffmpeg-how-to-change-the-pitch-sample-rate-of-an-audio-track-mp3/#:~:text=%24%20ffmpeg%20-i%20input.mp3%20-af%20%22asetrate%3D44100%2A0.5%22%20output.mp3%20Tip%3A,the%20filter%20aresample%20is%20needed%2C%20as%20seen%20below%3A
ffmpeg how do i know what audio rate to use? - Stack …
https://stackoverflow.com/questions/3921464/ffmpeg-how-do-i-know-what-audio-rate-to-use
Probably 44100 for audio sampling rate and 128 for bit rate should be sufficient. Check Wikipedia's sampling rate and audio bit rate articles for examples to see if those values are too high or too low for what you're trying to do.
ffmpeg - How to specify audio and video bitrate - Super User
https://superuser.com/questions/319542/how-to-specify-audio-and-video-bitrate
In order to specify the target bitrate for video and audio, use the -b:v and -b:a options, respectively. You can use abbreviations like K for kBit/s and M for MBit/s. For example: ffmpeg -i input.mp4 -b:v 1M -b:a 192k output.avi Note: This is a simple one-pass encode that tries to reach the specified bitrate at the end.
FFmpeg change audio sample rate - Stack Overflow
https://stackoverflow.com/questions/44569142/ffmpeg-change-audio-sample-rate
ffmpeg -i xxx.mp3 -filter:a "asetrate=$ (ffprobe -v error -show_entries stream=sample_rate -of default=noprint_wrappers=1:nokey=1 xxx.mp3)*1.1" -y xxx1.mp3. But is is not working and creates 0kb file. LOG: [asetrate @ 00000000024242e0] [Eval @ 00000000005fde80] Undefined constant or missing ' (' in 'ffprobe-verror …
(FFmpeg) How to Change the Pitch / Sample Rate of an Audio ...
http://johnriselvato.com/ffmpeg-how-to-change-the-pitch-sample-rate-of-an-audio-track-mp3/
$ ffmpeg -i input.mp3 -af "asetrate=44100*0.5" output.mp3 . Tip: Changing the sample rate to change the pitch might create a conflict because some players or websites (like Bandcamp) require audio with a sample rate to be 44.1kHz. To keep the pitch change while setting the preferred sample rate the filter aresample is needed, as seen below:
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