Ardour is an multichannel audiorecorder.
Ardour is an audiorecorder with many features. It use ?jack to connect with audio sources.
Mixer window of Ardour
You can install Ardour with your paket manager from the official Debian repositories. The name of the package is ardour or ardour-i686.
To use Ardour you need first to run jack. If you you don't have, Ardour will install jack. The new entry in your menu Multimedia > JACK Control is an graphical interface to use jack.
limit of maximum locked memory
If you start Ardour you may get this warning message:
WARNING: Your system has a limit for maximum amount of locked memory. This might cause Ardour to run out of memory before your system runs out of memory. You can view the memory limit with 'ulimit -l', and it is normally controlled by /etc/security/limits.conf
To avoid this you have to edit the limits.conf
sudo gedit /etc/security/limits.conf
and add this line
@audio - memlock unlimited
To activate this
sudo gedit /etc/pam.d/common-session
and there you add
session required pam_limits.so
Now you need to relogin and the warning message should be gone.