Tree [r738] / tags / qjackctl_0_2_15a /

File Date Author Commit
icons 2004-11-15 rncbc [r258] Reset-status icon has been changed to a simple ...
src 2005-02-09 rncbc [r294] Return of the paranoid.
AUTHORS 2005-02-09 --none-- [r296] This commit was manufactured by cvs2svn to crea...
COPYING 2005-02-09 --none-- [r296] This commit was manufactured by cvs2svn to crea...
ChangeLog 2005-02-09 rncbc [r295] Return of the paranoid.
INSTALL 2005-02-09 --none-- [r296] This commit was manufactured by cvs2svn to crea...
Makefile.cvs 2004-10-06 rncbc [r238] Force cache cleanup on cvs bootstrap. 2005-01-25 rncbc [r277] JACK/ALSA clients and ports aliasing (renaming)...
README 2005-02-03 rncbc [r290] Minor adjustments.
TODO 2003-12-02 rncbc [r80] Preset name caption title; persistent server st... 2005-01-14 rncbc [r273] Set to ignore the SIGPIPE (Broken pipe) signal,... 2005-01-25 rncbc [r277] JACK/ALSA clients and ports aliasing (renaming)...

Read Me

JACK Audio Connection Kit - Qt GUI Interface

Qjackctl is a simple Qt application to control the JACK sound server daemon
(, for the Linux Audio Desktop infrastructure.

Written in C++ around the Qt3 toolkit for X11, most exclusively using Qt Designer.

Provides a simple GUI dialog for setting several JACK daemon parameters,
which are properly saved between sessions, and a way control of the status
of the audio server daemon. With time, this primordial interface has become
richer by including a enhanced patchbay and connection control features.


License: GNU General Public License (GPL)


The installation procedure follows the standard for source distributions:

    ./configure [--prefix=/usr/local]

and optionally as root:

    make install

This procedure will end installing the following couple of files:


Just launch ${prefix}/bin/qjackctl and you're off (hopefully).


Qjackctl holds its settings and configuration state per user, in a file
located as $HOME/.qt/qjackctlrc. Normally, there's no need to edit this
file, as it is recreated and rewritten everytime qjackctl is run.


Probably plenty still, but qjackctl it's now considered on beta stage already.
It has been locally tested since JACK release 0.98.0, on SuSE 9.1, Mandrake 10.0
and Fedora Core 1, with custom 2.4 kernels with low-latency, preemptible and
capabilities enabling patches. As for 2.6 kernels, the capabilities patch may
also apply but the emergence of the Realtime Linux Security Module (LSM) and
Ingo Molnar's Realtime Preemption kernel patch it's being now recommended for
your taking benefit of the realtime and low-latency audio pleasure JACK can give.


Qjackctl is open source free software. For bug reports, feature
requests, discussion forums, mailling lists, or any other matter related
to the development of this piece of software, please use the
Sourceforge project page (


Qjackctl's user interface layout (and the whole idea for that matter)
was partially borrowed from Lawrie Abbott's jacko project
(, which
was taken from wxWindow/Python into the Qt/C++ arena.

Since 2003-08-06, qjackctl has been included in the awesome Planet CCRMA
( software collection.
Thanks a lot Fernando!

Here are some people who helped this project in one way or another,
and in fair and strict alphabetic order:

    Alexandre Prokoudine
    Austin Acton
    Dave Phillips
    Fernando Pablo Lopez-Lezcano
    Florian Schmidt
    Fons Adriaensen
    Jack O'Quin
    Jesse Chappell
    Jussi Laako
    Karsten Wiese
    Kasper Souren
    Kjetil Matheussen
    Lawrie Abbott
    Lee Revell
    Mark Knecht
    Matthias Nagorni
    Paul Davis
    Robert Jonsson
    Sampo Savolainen
    Steve Harris
    Taybin Rutkin
    Wilfried Huss

Thanks to you all.
rncbc aka Rui Nuno Capela