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

Qtractor 0.9.34 - A Spring'23 Release batch #3

One third time,

Qtractor 0.9.34 (spring'23) is released!


  • Fixed the snap-to-beat of new notes entry on the MIDI clip editor (aka. piano-roll) due on time signature changes.
  • Start JACK transport rolling only when metronome Count-in ends.
  • Fixed an allegedly old and incorrect 0dBfs notch position on MIDI track/buses audio meter sidekicks.
  • Send/return and Aux-send inserts now show the proper name and the target output bus name on the properties editor title respectively.
  • Fixed a zero-day blunder that was keeping the real-time process cycle from having the uniform block-size of 64 frames per period; (thus, probably ineffective since v0.9.30).
  • Multiple MIDI clip tools may now be applied simultaneously, in a single shot, in the following priority order: quantize, transpose, normalize, resize, rescale and timeshift.
  • Plugin inventory scan now slightly optimized to an allegedly lesser aggressive cache-invalidation algorithm.
  • Do not send/Preview notes on the MIDI clip editor (aka. piano-roll) when playback is currently rolling.
  • Send all pending MIDI Note-Off events when playback stops/shuts-off (and/or the Panic! button is hit).
  • Fixed the internal MIDI file player queue to the highest resolution possible (PPQN aka ticks-per-beat).
  • Prepping into the next development cycle (with Qt >= 6.5).

Vee One Suite 0.9.31 - A Spring'23 Release batch #2

Hi there, a second time,

The Vee One Suite of old-school software instruments,

  • synthv1 as a polyphonic subtractive synthesizer;
  • samplv1 a polyphonic sampler synthesizer;
  • drumkv1 as yet another drum-kit sampler;
  • padthv1 a polyphonic additive synthesizer.

Are here released for the (northern) Spring'23 season...

The QStuff* Spring'23 Release batch #1


The first batch of the QStuff*: QjackCtl, Qsynth, Qsampler, QXGEdit, QmidiCtl and QmidiNet, are all being released for the (northern) Spring'23 season. Enjoy while it's warm.

Qtractor 0.9.33 - An Early-Spring'23 Hotfix Release

Yet again,

Qtractor 0.9.33 (early-spring'23 hotfix) is out!


  • Fixed MIDI recording delay and recorded clip lengths when metronome Count-in is in effect for recording.

Qtractor 0.9.32 - An Early-Spring'23 Release batch #3

Hi again,

Qtractor 0.9.32 (early-spring'23) released!


  • Downgraded JACK timebase BBT information to nominal PPQN resolution (aka. ticks-per-beat).
  • Make sure all previously saved connections to identical ALSA MIDI hardware devices are now discriminated and properly restored, even though the target devices have the very same name.
  • Fix drag'n'drop in drum mode MIDI clip editor.
  • Quick hack to get latency compensation when recording.
  • Introducing count-in to audio and MIDI metronomes: View/Options.../Audio|MIDI/Metronome/Count-in; Transport/Count-in.
  • Corrected MIDI metronome bar/beat note duration.
  • Give an early response upon opening any NSM session.


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