Record with Multiple USB Mics Simultaneously in GarageBand
A huge feature missing from GarageBand is the ability to record with multiple USB mics on different tracks at the same time. If you’re recording a duet, or a podcast with more than one person, it’s a pain.
If you’re planning on singing Islands in the Stream or podcasting with a few friends, there is a way to get GarageBand to recognize all of your USB mics. All it takes is a quick trip to the Utilities folder to visit the Audio MIDI Setup app.