MacOS system extension that allows applications to pass audio to other applications.
https://github.com/mattingalls/Soundflower
Dec 18, 2014: Signed Version for Yosemite/Mavericks/El Capitan/Sierra/High Sierra
https://github.com/mattingalls/Soundflo ... /tag/2.0b2
IF INSTALLING ON HIGH SIERRA
The first attempt to install will display a security alert, then fail. Afterwards, you need to go into System Preferences "Security & Privacy - General" pane and give permission to allow the install signed by the developer "MATT INGALLS". After giving permission, you will be able to run the installer successfully
https://github.com/mattingalls/Soundflo ... -2.0b2.dmg