LAME

LAME is a the best audio compressor for converting audio files to MP3 files. MP3 is inferior to Opus and not a ideal choice but you may want to convert files to MP3 anyway since quite a few (older) music player devices lack support for anything but MP3.

Basic usage

LAME is used from the command-line by simply typing:

Shell command(s):

lame [options] <infile> <outfile>

You may want to set more advanced options such as -b for bitrate combined with --vbr-bew for variable bitrate. MP3 sounds horrible at bitrates below 256, higher if you are an audiophile.

Shell command(s):

lame -V0 -h -b 320 --vbr-new somefile.wav newfile.mp3

See the the lame manual page for a complete list of encoding options.