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Summer'15 release frenzy pt.1 - QjackCtl 0.4.0 is out!

Hi all,

as in through the hottest of summers--as southerners can't even wait--here comes part one:

QjackCtl 0.4.0 (summer'15) is out!

though aside that everybody knows this already,

QjackCtl is a (maybe not so any more but) simple Qt application to control the JACK sound server, for the Linux Audio infrastructure.



  • Some windows fixes added (patch by Kjetil Matheussen, thanks).
  • Most advanced Setup/Settings are moved into new Setup/Advanced settings tab; limit range for the real-time priority setting, now having 6 as absolute minimum valid value (after patches by Robin Gareus, thanks).
  • A new top-level widget window geometry state save and restore sub-routine is now in effect (EXPERIMENTAL)
  • Delayed geometry setup for widget windows upon startup has been deprecated and scrapped altogether.
  • Setup/settings dialog tab is going into some layout changes; also got rid of old patchbay auto-refresh timer cruft, which was previously hidden/disabled.
  • New socket names are now automatically inferred from selected client names while on the Patchbay widget, Socket dialog.
  • Fixed for some strict tests for Qt4 vs. Qt5 configure builds.
  • German (de) translation update (by Guido Scholz, thanks).


QjackCtl stands free, still open-source software, distributed under the terms of the GNU General Public License (GPL) version 2 or later.

Enjoy && have a whole hotta Summer'15 fun!

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Qtractor 0.6.7 - The Lepton Acid beta release!

It's alive!

Qtractor 0.6.7 (lepton acid beta) is out!

Release highlights:

  • MIDI instrument rendering on audio export (NEW)
  • MIDI clip editor view/event criteria persistence (NEW)
  • MIDI clip editor resilience on record/overdub (FIX)
  • Generic plugin form position persistence (NEW)
  • JACK Transport/Timebase master option (NEW)
  • and yet more tiny lurking critters swatted ;)

Well, the major highlight to this release is in fact this brand new and way long overdue feature, seamlessly integrated to the faithful and regular audio track export function: MIDI track instrument plug-in rendering and mix-down (aka. freeze) is now real, as long their audio output goes onto selected buses, aka. stems, mix-groups, whatever a mix/mastering head would name it! nb. on the (very exquisite) Qtractor arch-model parlance, those are just called "audio output buses" and that ain't gonna change, any time soon, so stop it! A word of caution must be told by now: dedicated (JACK) audio output ports are off-the-grid, so sorry.

Maybe this silently makes a notch towards the DAW epitome, though Qtractor still claims to be just a plain and honest sequencer--with yet another DAW-like feature addition--the same as it ever was.

Nuff said.

Vee One Suite 0.6.3 - A sixth beta release

As a micro dot release override, the current sixth beta release is out and crunching the earlier fifth to oblivion ;)


The Vee One Suite of old-school software instruments, aka. the gang of three have bumped over another tiny notch: synthv1, as one polyphonic synthesizer, samplv1, a polyphonic sampler and drumkv1, as one drum-kit sampler, are now being released to the masses. Again ;)

There's no big audible changes, if any at all, yet this sixth beta release is rather a probable bug fix for drumkv1 LV2 on Ardour (v3 and v4).

Anyway, it's all gone as follows:

  • Sample file drag-and-drop support has been added to the note element list widget (drumkv1 only).
  • Main widget layout changed as much to allow sampler display and element list to expand or grow vertically as needed (samplv1 and drumkv1).
  • Sample file path mapping has been fixed for LV2 plugin state restoration, which were preventing Ardour to reload any of the saved session or preset sample files in particular (re. drumkv1 only).
  • Custom knob/dial behavior mode options are now introduced: linear and angular (aka. radial) as far to avoid abrupt changes on first mouse click (still the default behavior).
  • Fixed for some strict tests for Qt4 vs. Qt5 configure builds.

We're still available in dual form, as business as usual:

  • a pure stand-alone JACK client with JACK-session, NSM (Non Session management) and both JACK MIDI and ALSA MIDI input support;
  • a LV2 instrument plug-in.

Enough to tell, the Vee One Suite are free and open-source Linux Audio software, distributed under the terms of the GNU General Public License (GPL) version 2 or later.

As always, have (lots of) fun :)

Qtractor 0.6.6 - The Lazy Tachyon is out!

And finally, for the wrap of the pre-LAC2015@JGU-Mainz release party, no other than the crown jewel of the whole Qstuff bunch ;)

Qtractor 0.6.6 (lazy tachyon beta) is out!

Release highlights:

  • LV2 and VST plugins GUI position persistence (NEW)
  • MIDI clip editor record/overdub note rendering (FIX)
  • VST plugin recursive discovery/search path (NEW)
  • VST-shell sub-plugins support (FIX)
  • also some old and new lurking bugs squashed.

Qtractor is an audio/MIDI multi-track sequencer application written in C++ with the Qt4 framework. Target platform is Linux, where the Jack Audio Connection Kit (JACK) for audio and the Advanced Linux Sound Architecture (ALSA) for MIDI are the main infrastructures to evolve as a fairly-featured Linux desktop audio workstation GUI, specially dedicated to the personal home-studio.


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