Preferences: Libraries buttons grayed out - GNU/Linux - Audacity Forum
FFmpeg Library – Open Source for Digital Communication & Learning Objects
Simple! How to install FFmpeg Audacity
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
Simple! How to install FFmpeg Audacity
Audacity not recognizing FFmpeg library - macOS - Audacity Forum
How do I install ffmpeg for Audacity? - Apple Community