Loopback bills itself as cable-free audio routing and thats probably the best way to understand what it does.
Loopback works like a big, digital mixing board.
If you do a lot of recording on your Mac, its worth a look.
Loopback($75)
Loopback for Mac Manages Multiple Microphones and Other Audio Inputs
Mac: If you need to route audio from one Mac to another , say, from a microphone to Skype to Audacity, the go-to tool has long been the often bafflin
