QjackCtl
Frontend written by Rui Nuno Capela for audio server Jack. Please see Jack and UsingJack Using Jack for more information.
Installation
Install appropriate software package:-
qjackctl-0.3.9-i486.pet - This package contains the Qjackctl frontend ONLY you will need Jack and Qt Qt 4
Also on the Wiki
jack - information about the backend program
Time Machine - background audio recorder