How to convert AAC/MP4A to MP3 using FFMPEG in full length? Audio file gets cut off after 1 second - Stack Overflow
How to Convert M4A to MP3 with FFmpeg and Its Alternative?
What is FFmpeg? 21 Sample FFmpeg Commands - Quick Guide
FFmpeg Media Encoder - Apps on Google Play
Encode Videos with FFmpeg - Digital Fortress
Converting AC3 audio to AAC in Audacity - Super User
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