Adjusting volume controls for Loopback's virtual audio devices

When using Loopback 1.2 or higher, the virtual audio devices you create will feature complete volume controls. Virtual devices can act as both input devices and output devices, and you can now control both input volume and output volume.

Audio MIDI Setup in action

Using MacOS's built-in “Audio MIDI Setup” application (found in the Applications -> Utilities folder), you can control the master volumes for the virtual device, as well as each of its channels.

If you assign a virtual audio device as your system output device or system input device, the volume sliders in the Sound System Preference will work as expected. For output devices, the keyboard volume keys will also function normally.

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