Install jack-rack by entering the following commands in the terminal:
sudo apt update sudo apt install jack-rack
Description:
LADSPA effects "rack" for JACK
JACK Rack is an effects "rack" for the JACK low latency audio API. The rack can be filled with LADSPA effects plugins and can be controlled using the ALSA sequencer. It's phat; it turns your computer into an effects box.
Homepage: http://jack-rack.sourceforge.net/
Version: 1.4.8~rc1-2ubuntu2
Section: universe/sound