Do you use Loopback?
What is Loopback?
With the power of Loopback, it's easy to pass audio from one application to another. Loopback can combine audio from both application sources and audio input devices, then make it available anywhere on your Mac. With an easy-to-understand wire-based interface, Loopback gives you all the power of a high-end studio mixing board, right inside your computer!
6 more launches
After Audio Hijack, Loopback was the second audio app I bought from Rogue Amoeba and I've used it almost constantly since. The beautiful thing about Loopback is that it just works - you set it, and then you can forget about it.