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

Hot Pick Revisited

I must have been terribly busy to miss this one earlier. Or at least completely away from this Earth. It was only yesterday, more than two months later when doing some course browsing over some past magazines, that I've stumbled with joy over one of those, quite by chance though. Surprisingly enough, given that I've the magazine in matter since this late Summer,,my dearest project has been granted a very graceful review from, once again, the Linux Format UK's best-selling Linux magazine. Yes, just half a year later from being the Hottest Pick, Qtractor is now a Hot Pick Revisited on this late August 2008 issue (LXF108). Awe!

The Flirty Ditz

Qtractor is an audio/MIDI multi-track sequencer application, written in C++ on top of Qt Software's Qt4 framework, having JACK and ALSA as its main infrastructures and Linux as native and exclusive platform. Specially suited to the lone-wolf composer, arranger and (re)creative music-maker personal home-studio, it still hopes to evolve as a fairly featured desktop audio/MIDI workstation or at least, a prototypical part of it ;)


Qtractor 0.2.2 (flirty ditz) is out!

Release highlights:

  • Stephen Doonan joined documentation team and revised the user manual.
  • Spurious MIDI events recording bug now fixed.
  • Audio track monitoring and plugin loop processing slightly improved if not fixed.
  • MIDI clip editor improved precision and correct snapping.
  • Multiple track mute and solo one-click toggling (NEW).
  • Better MIDI connection persistance across sessions.
  • Record-armed tracks aren't muted on playback anymore (NEW).
  • Optimized audio clip waveform caching and drawing.
  • Many more or less fixes (see change-log).

ENOS08@isep.ipp.pt

Saturday, September the 6th, I was once again pleased to attend the second National openSUSE Portuguese Meeting (ENOS), in a renewed invitation from Carlos Gonçalves. This time I had a chance to talk around the current Linux Audio/MIDI scenario and, of course, my brainchild Qtractor.

The Fainty Diva

Howdy! Vacation time is now gone and the rentrée is upon us, at least on this hemisphere side of the globe ;) Silly season, beloved August, summertime it is. And before it's too late, I'm proud to announce that a new alpha has summoned to the challenge:

Qtractor 0.2.1 (fainty diva) has been released!

Release highlights:

  • Gradient eye-candy (NEW)
  • DSSI multi-instance plug-in issue fixed
  • Clip waveform/piano-roll rendered while recording (NEW)
  • MIDI pitch-bend, omni-channel filtering and recording fixes
  • Play-head positioning in the thumb-view (NEW)
  • And many few more (see change-log below:)

The Frolic Demoiselle


Qtractor is an audio/MIDI multi-track sequencer application written in C++ with the Qt4 framework [1]. Target platform is Linux, where the a Jack Audio Connection Kit (JACK) for audio [2] and the Advanced Linux Sound Architecture (ALSA) for MIDI [3] are the main infrastructures to evolve as a fairly-featured Linux desktop audio workstation GUI, specially dedicated to the personal home-studio.

Qtractor is free open-source software, distributed under the GNU General Public License (GPL) [15].

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