FFmpeg is a free command-line tool for processing media files. You can use it to bulk convert audio files to change their format, reduce their size, or make their volume consistent.

Whether you’re recording a meeting, lecture, or other important audio, MacWhisper quickly and accurately transcribes your audio files into text.

I want to get all of my m4a's converted to MP3s while keeping the tags iTunes already applied. The only freeware I found was Free MP3 WMA Converter 1.5.0 , which is fairly spiffy but doesn't keep ...