This is the Mac OS X version of Ardour (http://ardour.org)

You don't need a lot of stuff to get Ardour running on OS X. You will need:

    * At least OS X 10.4

    * Apple's X11 which is found on your OS X install CD (or a large download)

    * JACK (either JackOSX - http://jackosx.com or "regular" JACK.) In
      general, we recommend JackOSX for new users, specifically version
      0.72 or above. It should run on OS X versions 10.3.x and above,
      including Tiger.  Version 0.73 or above must be used for Mac Intel
      universal binary support.

See http://ardour.org/requirements_osx for more information.

The universal binary of Ardour should run on OSX versions >= 10.4. A version
that also runs on Panther should also be available.
Please report any problems to osx-support@ardour.org or on the #ardour 
IRC channel at irc.freenode.net.  And include any output from the 
console.log as shown in the Applications->Utilities->Console application 
in the report.

IMPORTANT: before starting Ardour, you should configure and start the
JACK server. You can either use JackPilot, which comes with the
JackOSX package, or you can use the more advanced QJackCtl. A disk
image for QJackCtl is available at http://ardour.org/requirements_osx,
please read the included README carefully for initial setup
instructions.

Because ardour does not come with any effect plugins, we are providing
installable packages for some of the top LADSPA plugins sets.  Please
download and install them from http://ardour.org/requirements_osx
page.

Also see the online documentation at http://ardour.org/manual/ for
basic usage of the software.

FAQ
------------------------

Q: When I click on the Ardour icon, the program will not start

First, check a few basic issues:
   1. Are you running at least OS X 10.4 ?
   2. Did you install Apple's X11 application?
   3. Did you install a suitable version of JACK ?
   4. Did you start JACK running before trying to run Ardour?
      (Typically this is done using a JACK control app like JackPilot or qjackctl.)

If the answer is yes to all of the above
   1. Launch "Console", which can be found in the "Applications->Utilities" folder
   2. Look at the console.log in the Console app.
      Press the "clear" button to remove any previous messages.
   3. Try to launch Ardour again
   4. Cut and paste the entire contents of the Console window
      (including any data stored in the scrollback) into a new posting
      in the ardour OS X forum at http://ardour.org/forums .
      Include details of your OS version and processor type.