Rock hair? Check. Leather pants? Check. Air guitar skills? Check. Move over Rover and let the music nerds at CNET.com.au show you how to set up a simple home recording environment with GarageBand.

I've been recording my own music for a long time. And I'm on a more or less constant quest to find the best audio interface—that secret sauce that's going to level up my home studio (okay, it's a ...