Show-off my open-source stuff, mostly of the Linux Audio/MIDI genre

QjackCtl 0.3.6 - Full D-Busification!

Awe! Times they are a-changing although Bob Dylan has no D-Business here. The old and cutie gooey for JACK just got one turn around the verge of bit-rotting. This time it brings full JACK D-Bus support, or almost. It also adds D-Bus access for most GUI actions which some might find pretty handy for keyboard shortcut binding from your desktop environment of choice. However, if babies health is your top concern you can just turn this D-Bus thing off and play with the Old times ;) Ahem...

QjackCtl 0.3.6 is now released!

More details in the change-log, below.

New Kids On the Block

QmidiCtl is a MIDI remote controller application that sends MIDI data over the network, using UDP/IP multi-cast. It has been designed primarily for the Maemo enabled handheld devices, namely the Nokia N900. In its current development state, which is obviously alpha as of this writing, it puts a mini multi-track recording control surface on your hands and on the go, so to speak. MMC is the feature and yours truly Qtractor the target. However, any other MMC enabled DAW may be considered.

However nothing of this would be possible without this little thing that gets also here its release announcement: QmidiNet is a MIDI network gateway application that sends and receives MIDI data (ALSA Sequencer) over the network, using UDP/IP multi-cast. Fundamentally inspired by multimidicast and designed to be compatible with ipMIDI for Windows, it's a little tiny application that sits as an icon on your system tray and exposes one or more ALSA Sequencer client ports which open the way for a MIDI network mesh. Pretty neat if you think wireless and not necessarily because of QmidiCtl.

Alas, you can transform any Linux/ALSA computer (or Windows/ipMIDI enabled one, if you dare to) into a MIDI-over-IP inter-connected node.

Be free, without cables :)


Some might like to know that free-hand drawing is now featured on the MIDI clip editor (aka piano-roll). It's one click away from the Edit/Select Mode/Edit On menu or the pencil tool-button.

Speaking of overdue TODO lines, another one bites the dust. On SVN trunk (qtractor- of course.

Got that Swing?

Oh Sunday, boring Sunday... :o) Well, swing-quantize has just sneaked in the SVN trunk (qtractor- You can bear this from MIDI clip editor's (aka piano-roll) Tools/Quantize... menu.

Basically, the way I've implemented it, is kind of a deformed grid quantization, which distorts even numbered (beat, quarter-note, seminima, whatever) divisions by a given percentage, something that can pictured as follows....

Qtractor 0.4.5 - A Friskier Demivierge is out!

SCNR ;) mostly yet another bug-fix-regression dot release, nuff said.

Qtractor 0.4.5 (friskier demivierge) is out!


  • Changing loop points while playback is rolling, with the play-head any near, was leaving audio clips out-of-sync.
  • MIDI event list view was missing some selected items with the very same onset time, now fixed.
  • When failing to detect a SSE enabled build, the CFLAGS variables are now properly restored to their previous sane state, preventing all subsequent dependency tests from false positives (bug#
  • MIDI clip editor (aka piano-roll) multiple selection has been fixed (again) re. move/paste-snapping consistency.


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