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
How to Record an MP3 Audio using Audacity | Clothed In Scarlet
Mac Lame Library - wavesclever
How to Record an MP3 Audio using Audacity | Clothed In Scarlet
FFmpeg installation: Cannot find plugin - macOS - Audacity Forum