Ardour3 is a digital audio workstation. You can use it to record, edit and mix
multi-track audio. You can produce your own CDs, mix video sound tracks, or
just experiment with new ideas about music and sound.

Ardour3 capabilities include: multi channel recording, non-destructive editing
with unlimited undo/redo, full automation support, a powerful mixer, unlimited
tracks/busses/plugins, time-code synchronization, and hardware control from
surfaces like the Mackie Control Universal.

You must have jackd running and an ALSA sound driver to use Ardour3. If you are
new to jackd, try qjackctl.

See the online user manual at http://en.flossmanuals.net/ardour/index/