Since upgrading to Mojave, AU Lab doesn't work with Sound Siphon (or microphones). Help!

We ran into this issue ourselves and found a solution here:

https://discussions.apple.com/thread/8552731

Basically, in order to solve this you need a new copy of AU Lab on your Mac. This is what we did:

1. Zip AU Lab
2. Email the zip file to yourself.
3. Download the zip file from your email.
4. Unzip and launch the new copy of AU Lab.

AU Lab should ask you for permission to access your microphones. After granting permission the copy in your /Applications folder should work as well.