Forked from christofluethi/gist:646ae60d797a46a706a5
Created
December 13, 2017 02:21
-
-
Save adrianotadao/f7e8aedf2508d9c3cc2da0a0b11065eb to your computer and use it in GitHub Desktop.
Convert m4a to mp3 on OS X command line using ffmpeg
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| brew update | |
| brew link yasm | |
| brew link x264 | |
| brew link lame | |
| brew link xvid | |
| brew install ffmpeg | |
| ffmpeg wiki: | |
| https://trac.ffmpeg.org/wiki/Encode/MP3 | |
| lame option Average kbit/s Bitrate range kbit/s ffmpeg option | |
| -b 320 320 320 CBR (non VBR) example -b:a 320k (NB this is 32KB/s, or its max) | |
| -V 0 245 220-260 -q:a 0 (NB this is VBR from 22 to 26 KB/s) | |
| -V 1 225 190-250 -q:a 1 | |
| -V 2 190 170-210 -q:a 2 | |
| -V 3 175 150-195 -q:a 3 | |
| -V 4 165 140-185 -q:a 4 | |
| -V 5 130 120-150 -q:a 5 | |
| -V 6 115 100-130 -q:a 6 | |
| -V 7 100 80-120 -q:a 7 | |
| -V 8 85 70-105 -q:a 8 | |
| -V 9 65 45-85 -q:a 9 | |
| ffmpeg out.mp3 -i in.m4a -codec:a libmp3lame -qscale:a 1 | |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment