In dit artikel beschrijven we de installatie van Ardour samen met jack sound server in Linux Mint

doe volgende procedure (engels)
install qjackctl through the sofware manager or with terminal
sudo apt update
sudo apt install qjackctl
info:
https://qjackctl.sourceforge.io/
install ardour through the sofware manager
info:
https://ardour.org/
check if group audio exist
getent group
if not,
sudo groupadd audio
check your user is assigned to the group audio
groups
if not,usermod -a -G audio username
change limits.conf file
sudo xed /etc/security/limits.conf
add following lines add the end off the file
@audio – rtprio 95
@audio – memlock unlimited
Logout and back in
If that does not work, reboot
setup the jack server
check box on “no memory lock”
frames =512 or 1024
the rest default as is

startup the server with the start button
launch ardour
set audio to jack
sample rate = 48000 Hz
if ardour not working because of realtime isues you need to configure jack in real time mode with following code
sudo dpkg-reconfigure -p high jackd2
restart qjackctl and launch ardour again, now everything should work perfectly.