GitHub - cfgnunes/wxlame: Free front-end for the LAME MP3 encoder.
How To Use LAME Encoder To Export MP3 Files With Audacity Editor
Audacity tutorial: Converting to mp3 or AAC and other formats, example: Matthew Smith - epic orchestral synth music for film and game effects; Buanzo's LAME mp3 library
Lame MP3 Encoder for Mac - Download Lame for Audacity | MacUpdate