Accessing additional third-party Audio Units

Working with Audio Units

In addition to adjusting audio with its own built-in effects, SoundSource makes it possible for you to use Audio Unit plugins on any audio, including third-party Audio Unit plugins you've installed on your Mac. SoundSource will find Audio Units in two locations:

  • /Library/Audio/Plug-Ins/Components
  • ~/Library/Audio/Plug-Ins/Components

To use an Audio Unit with SoundSource, just install it in either of those locations. When a compatible audio effect-type Audio Unit is installed, SoundSource will include it in the menu shown when clicking Add Effect for either the System Output device, or a per-application adjustment.

It's worth mentioning that SoundSource does not load non-effect Audio Units, such as instruments or generators, as they are a poor fit for how SoundSource handles audio.

Blocked third-party Audio Units

Unfortunately, certain third-party Audio Unit plugins can cause problems with SoundSource's plugin support. To avoid any difficulty or performance issues, SoundSource currently prevents IK Multimedia's “ARC 2” plugin from loading. Note that the newer “ARC 3” has no known issues, and is not blocked by SoundSource.

Restoring access to blocked third-party plugins

We don't recommend using blocked plugins with SoundSource. However, if you wish, you can restore access through SoundSource's hidden preferences.

To access this window:

1) Quit SoundSource, then relaunch it while holding down the Option key. This will bring up the debugging window (shown in the screenshot above).

2) Enable the Show blocked third-party Audio Units checkbox, and then click Done.

Once this setting is turned back on, any previously blocked third-party Audio Units will be available in SoundSource. While their use isn't officially supported, this will enable you to test them.