SoundSource makes it easy to apply third-party Audio Unit plugins to any audio on your Mac. This is discussed in depth on the “Audio Effects” page of the SoundSource manual, found within SoundSource.
MacOS Catalina 10.15.x has brought some changes in security and permissions when installing products like iZotope offers. As a result of this, not all products are compatible with macOS Catalina. All currently sold products on our website have been updated for macOS Catalina.
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On MacOS 10.15 (Catalina) and higher, third-party Audio Units might fail to work as you expect. A change made by Apple means that all software must be “notarized” by their security systems. Non-notarized software is entirely prevented from running on MacOS, starting with Catalina.
This change means many older third-party Audio Unit plugins will fail to work as expected. This issue will occur in any modern Audio Unit host, including SoundSource, Apple's own GarageBand, and many others. When attempting to use third-party Audio Units, you may encounter non-functional plugins, error messages, or other undesirable behaviors.
Next steps from third-party plugin developers
To get their software working on recent versions of MacOS, developers of third-party Audio Unit plugins must issue updates. Once the software is properly updated, the plugins will again work as expected. You should be sure you've got the latest versions for all your Audio Units.
If you have a third-party Audio Unit which does not work on Catalina or higher, you should check with the developer to see if they have an update, and to request one if they don't.
How SoundSource handles third-party plugins on Catalina and higher
Hikvision Plugin Download
If you've previously used third-party Audio Units in SoundSource on MacOS 10.14 or lower, the application will disable those third party plugins when it's first run on MacOS 10.15 or higher. This is done to avoid you being overwhelmed with error messages from MacOS.
Hikvision For Mac
You can attempt to re-enable plugins one at a time, by toggling them to the “On” state. It's possible some of your plugins have already been updated, and will work as expected when you turn them back on. If you attempt to activate a plugin which is not properly notarized, MacOS will issue an error, similar to the following:
Hikvision No Plugin Detected Mac
As mentioned, the long-term solution is for each plugin developer to issue properly notarized updates to their plugins. If you see an error like the one above, contact the plugin developer for an update. Once a plugin is updated, you'll be able to toggle it back on to have it work as you expect.