Install jackd1 by entering the following commands in the terminal:
sudo apt update sudo apt install jackd1
Description:
JACK Audio Connection Kit (server and example clients)
JACK is a low-latency sound server, allowing multiple applications to connect to one audio device, and to share audio between themselves. . This package contains the daemon jackd as well as some example clients.
Homepage: http://jackaudio.org/
Version: 1:0.125.0-3
Section: universe/sound