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 Convert AAC to MP3 on Windows/Mac in/without iTunes - VideoProc
FFMpeg Library Not Working? - Windows - Audacity Forum
6 Ways to Convert AAC to MP3 With/Without Using iTunes
FFmpeg Media Encoder - Apps on Google Play
6 Ways to Convert AAC to MP3 With/Without Using iTunes
How to Fix Audacity AAC Import and Export Failure Issue?