JACK is a professional sound server daemon that provides real-time low latency connections for both audio and MIDI data between applications that implement its API. The API can be used through either JACK1 or JACK2.

JACK Audio Connection Kit is the most popular Mac & Linux alternative to BlackHole Audio Loopback Driver.
JACK Audio Connection Kit is the most popular Open Source alternative to BlackHole Audio Loopback Driver.
- JACK Audio Connection Kit is Free and Open Source
- JACK Audio Connection Kit is Lightweight













































Free download that works with or without the paid SoundDesk app! Works great.