Make an mp3 playlist:
- ls -1 *.mp3 > playlist.m3u
Make mp3s from raw wav files:
- ffmpeg -b 192k -i The_Rain_Song.wav The_Rain_Song.mp3
Convert m4a to mp3:
- ffmpeg -y -i ./BWV0666.m4a -ab 192000 -ac 2 ./BWV0666.mp3
Good help source: http://xed.ch/help/sound.html
Concatenate mp3 files
- ffmpeg -i “concat:part1.mp3|part2.mp3|part3.mp3” -acodec copy Episode3.mp3
Add stereo channels:
Use the command-line tool sox and do the channel duplication
- sox mono.wav -c 2 stereo.wav
To concatenate files:
- sox file1.mp3 file2.mp3 file3.mp3 output.mp3
- ffmpeg -i “concat:1.mp3|2.mp3|3.mp3” -acodec copy Micah-ItsyBitsySpider.mp3
Tip: if you think you might ever compile your ‘casts into an audiobook, make sure to set the peaks in Audacity to -3. That’s one of the requirements.