How to Convert Audio From Wav to MP3 in Node.js Using FFMpeg

Uncompressed live music is best

Update: I’ve added a new post describing how to do this client-side.

While working on kaizen.place, a music app that encourages continuous improvement of your music, I found a need to convert wav files to mp3. To keep hosting costs down, I set a limit of 10 MB for the file upload size. But a standard 3 minute song is just over 30 MB. Indirectly, this limit…