I’m sure some folks need this many channels, and if so, Loopback is there for them. For example, you might want to dump the output from an audio editor program as the input of a Skype call, so someone else could listen to changes and approve them as you edit. Hold down the Option key and a Running Processes menu item appears, letting you select the audio output of anything currently running in the foreground as an app or in the background as a system process or agent-this includes Siri and other parts of macOS that produces audio or “speaks.” IDGĪn Option-click gains access to everything running on a Mac, including hidden agents.Įvery new device automatically includes Pass-Thru, which lets it be used as an audio input as well as a combined output, useful for apps that let you choose a specific audio output device. A drop-down menu shows all running apps and connected audio input devices.

You click a + to create a new virtual device, then select sources. Setting up Loopback is a simple matter, made more visual and easier to understand in version 2. One step shy of literally “plug and play” But if none of these uses remind you of tasks you’ve tried to manage or want to do, Loopback likely doesn’t meet your interests.

On a podcast with remote guests, where you want to have background music, live music, or snippets play during the recording that everyone on the connection can hear just as you can.

Managing a call with people across multiple internet audio apps, like audio calls within Slack and Google Hangouts, so that you and everyone can hear each other.

With multiple USB mics attached, combining their input to feed into a FaceTime call.

Taking the output of a tab in Safari that’s playing cable channel news and recording it through QuickTime player.

Audio hijack 2