True, Rogue Amoeba's Loopback 2 is only a must-have app if you ever work with audio — but you probably do, so it likely is. The tool for routing audio between apps and audio devices gets a makeover ...

The simplicity of version 2 of Loopback makes it even easier to access its powerful features for combining and controlling audio sources, including the sound output of apps. A typical configuration ...

° The explicit Pass-Thru source provides more power to virtual devices being used to pipe audio with no configuration needed. Loopback runs on macOS 10.11 and higher, with a free fully-functional ...