Convert audio file to mp3 on macbook with automator super fast

This little trick has saved me so much time. I bought a new mac and had to send demos from Ableton over email to someone. With Automator you can convert any audio file within seconds so you can send it around. Very useful when you want to quickly share an idea with someone. I haven't come across this trick on TH-cam, so I thought I'll share it here; maybe some people will benefit from it.