[LAA] Qtractor 0.7.9 - A Snobbier Graviton release

Rui Nuno Capela rncbc at rncbc.org
Wed Sep 21 15:21:52 UTC 2016

So it's the last equinox'16...

And the last of the Qstuff* End of Summer'16 release parties [7][8].

   Qtractor 0.7.9 (snobbier graviton) is now released!

Release highlights:

* Audio/MIDI metronome anticipatory offset (NEW)
* Current clip highlighting (NEW)
* SFZ sample file archive/zip bundling (NEW)
* MIDI transpose Reverse tool (NEW)
* MIDI (N)RPN running status and NULL support (NEW)
* MIDI Controllers catch-up algorithm (FIX)
* MIDI track Instrument menu (FIX)
* JACK shutdown and buffer-size changes (FIX)

   Qtractor [1] is an audio/MIDI multi-track sequencer application 
written in C++ with the Qt framework [2]. Target platform is Linux, 
where the Jack Audio Connection Kit (JACK [3]) for audio and the 
Advanced Linux Sound Architecture (ALSA [4]) for MIDI are the main 
infrastructures to evolve as a fairly-featured Linux desktop audio 
workstation GUI, specially dedicated to the personal home-studio.


Project page:

- source tarball:
- source package:
- binary packages:

Git repos:

Wiki (help wanted!):

   Qtractor [1] is free, open-source Linux Audio [5] software, 
distributed under the terms of the GNU General Public License (GPL [6]) 
version 2 or later.

And the boring complete change-log follows:
- JACK buffer-size change handling has been deeply improved, now doing 
an immediate session restart, while preserving all external connections 
as much as possible.
- Introducing an audio and MIDI metronome anticipatory offset, kind of 
latency compensation, to respective option settings cf. 
View/Options.../Audio, MIDI/Metronome/Offset (latency).
- Fixed LADSPA plug-in preset switching, incidentally broken as NOP, 
ever since late Haziest Photon's crash-landed.
- MIDI Track/Instrument cascading menus have been found empty broken on 
Qt5 builds, now fixed.
- MIDI RPN/NRPN running status and RPN NULL reset command are now 
supported (input only).
- Fixed a sure immediate crash on removing audio buses that are current 
targets of any active Aux-send inserts.
- Fixed yet another old bummer that was reaping off assigned MIDI 
controllers on existing track's gain/volume or panning controls, when 
adding any single new track.
- Fixed missing feedback on MIDI controllers assigned to any of monitor, 
record, mute and solo track/bus state buttons.
- Eye-candy warning: the current clip, not necessarily the one currently 
selected, is now highlighted with a solid outline; linked MIDI clips are 
also highlighted with an alternate dashed outline.
- SFZ file conversion, and bundling of the respective sample files, is 
now supported when saving as zip/archive (*.qtz).
- Fixed track monitor, record, mute and solo dangling states, on 
Track/Duplicate command.
- Slight regression on the LV2 State Files abstract/relative file-path 
mapping, trading QFileInfo::canonicalFilePath() for 
QFileInfo::absoluteFilePath(), and thus skipping all symlink 
dereferences in the process.
- Fixed a one first linking/ref-counting glitch, affecting recently 
recorded MIDI clips which might have their initial clip length still 
un-quantized to MIDI resolution (BBT).
- A brand new and discrete MIDI clip editor command tool has been added: 
MIDI Tools/Transpose/Reverse.
- Discretely fixed MIDI Controllers catch-up algorithm.
- Fixed a borderline mistake on plug-in parameter port index mapping to 
its corresponding symbolic name, especially if newer plug-in versions 
are loaded on older saved sessions.


[1]  Qtractor - An audio/MIDI multi-track sequencer

[2]  Qt framework, C++ class library and tools for
      cross-platform application and UI development

[3]  JACK Audio Connection Kit

[4]  ALSA, Advanced Linux Sound Architecture

[5]  Linux Audio consortium of libre software for audio-related work

[6]  GPL - GNU General Public License

[7]  The QStuff* End of Summer'16 Release

[8]  Vee One Suite 0.7.6 - The Eleventh beta release

See also:

Enjoy && Have (lots of) fun.
rncbc aka Rui Nuno Capela

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