Rogue Amoeba has served up Loopback 2 (, an update of its tool that enables powerful audio routing between applications and audio devices on the Mac, allowing you to pass audio directly between apps with a few clicks.

Users can take the sound from apps and hardware devices, then pass it to any audio processing software. With version 2:

° The app has been simplified, with an intuitive wire-based interface that makes it easy to understand how audio is flowing.

° New volume controls allow users to adjust any levels, anywhere.

° Monitoring options make it possible to hear exactly what’s needed.

° Capture of hidden sources, like Siri and VoiceOver, is now possible with Loopback.

° Virtual audio devices now support up to 64 channels.

° On/Off toggles on sources and monitors facilitate temporary adjustments.

° The user-adjustable wiring system provides more possibilities for configuring audio.

° 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 trial available for download. While in trial mode, the quality of audio passing through Loopback’s virtual devices will be degraded after 20 minutes. New users can purchase the unrestricted full version of Loopback 2 for $99, while a $49 upgrade is available to all users of Loopback 1.