Music and technology come together on November the 4th and 5th 2017 in
Cologne, Germany. See, hear and learn how music gets created using free
and open source software and hardware. Meet new people and their exiting
creative techniques; and show your own, if you want! The only
requirement for participation is an interest to make and create music.
You do not have to be an expert of any kind to enjoy the event.
The theme of the convention is making music with free and open source
software and hardware. That includes a single program up to a whole
operating system. No matter the technology, the music is at the centre
of it. Every talk, demonstration or workshop will be focused on music.
This also includes a top-down approach e.g. we advise our speakers to
start with a piece of music and refer everything after that to it.
You are invited to apply to present anything that matches the theme of
Sonoj Convention. To apply please fill out the form on the website or
write an e-mail to info(a)sonoj.org <mailto:firstname.lastname@example.org>. We only
require a preliminary text that broadly outlines your idea. Mention at
least how much time it will take and the format of your idea (e.g.
demonstration of your own music and workflow, tutorial with
audience-participation etc.). We will get in touch with you shortly
after your submission.
For more information see http://www.sonoj.org
Nils Hilbricht for the organization team
November the 4th and 5th 2017
Venue: Heliosstrasse 6a 50825 Cologne, Germany
Another month's episode has landed, revealing the results of the Open
Amplifier Challenge (aka tunestorm 17). This round of uncompetition drew in
6 entries with great guitar shown throughout using "in-the-box" guitar
processing with open source tools. Go have a listen:
And please stay tuned for our next tunestorm (to be announced in the March
episode) so you can participate in the fun!
New images are ready for testing (amd64, i386) ;)
io GNU/Linux is a Live DVD/USB based on Debian Sid and focused on multimedia.
-> Kernel 4.9.10 and 4.9.10-rt, Jack2+PulseAudio as default sound server (can
be easily changed to Jack2+AlsaLoop, Jack2+ZitaBridge, PulseAudio or Alsa)
-> Enlightenment (e21) as desktop environment and a big collection of
installed software... Full persistence for USB install (with encryption) and
For more infos: manual, packages list, screenshots, video etc... Visit:
Feedbacks welcome, enjoy :)
Qtractor 0.8.1 (sticky tauon) is out!
* JACK Transport mode switching on main menu/tool-bar (NEW)
* Main menu Track/Navigate/Next, Previous wrap around (FIX)
* Auto-backward play-head position flip-flopping (FIX)
* JACK Transport tempo/time-signature in-flight changes (FIX)
* Sanitized audio clip zoom-in/out resolution (FIX)
Obviously, this one dot bug-fix release and everyone is then compelled
to upgrade. On the side, a couple of notes are also worthy of mention...
Besides some other stray thoughts, you may be asking yourself, after
reading those crappy release highlights above, what the heck that
"in-flight" tempo / time-signature change-fix is all about?
No stress. There's always a reason, as if reason won't ever prevail,
above all else...
So, the whole truth and nothing but the truth, should here be told:
jack_link  is the dang reason. And then, you may now know and play
the badass with Ableton Link . Keep in mind that jack_link  is
kind of a toy, so please, have it under a child's perspective ;)
You can still play all along with your band fellows, don't get me
wrong. You all have to be on the same machine or in the same local
network segment (LAN) anyway, just like yours truly QmidiNet  does
(and recommends). But that's probably one hell of a disparate story,
although sharing the same networking concept... move along!
Whatever. When in doubt, please ask me. Whenever you find yourself in
despair, you can also ask me. But take note that I made no promises nor
guarantees that it would ever work for you. And this goes as far as in
any formal disclaimer can go.
The hard truth is: your are on your own. But please, enjoy and have
(lots of) fun while you're at it ;)
As second note, this project has finally called in for its own vanity
and internet domain name: qtractor.org . I guess it was about time.
Qtractor  is an audio/MIDI multi-track sequencer application
written in C++ with the Qt 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.
- source tarball:
- source package:
- binary packages:
Wiki (help still wanted!):
Qtractor  is free, open-source Linux Audio  software,
distributed under the terms of the GNU General Public License (GPL )
version 2 or later.
- The View/Options.../Display/Dialogs/Use native dialogs option is now
set initially off by default.
- All tempo and time-signature labels are now displayed with one decimal
digit, as it was in mostly everywhere else but the time ruler/scale headers.
- JACK transport tempo and time-signature changes are now accepted, even
though playback is not currently rolling; also, changing (JACK) Timebase
master setting (cf.View/Options.../General/Transport/Timebase) will take
effect immediately, not needing nor warning for session restart anymore.
- Track/Navigate/Next and Previous menu commands, finally fixed to wrap
around the current track list.
- Current session (JACK) transport mode option switching is now being
made accessible, from the main menu and drop-down toolbar buttons, as
well as user configurable PC-keyboard and/or MIDI controller shortcuts
(cf. Transport/Mode/None, Slave, Master, Full).
- Fixed some auto-backward play-head position flip-flopping, when
opening a new session while the previous was still on rolling/playing
- Added French man page (by Olivier Humbert, thanks).
- MIDI clip changes are now saved unconditionally whenever the editor
(piano-roll) is closed or not currently visible.
- Audio clip peak/waveform files re-generation performance, scalability
and resilience have been slightly improved.
- Some sanitary checks have been added to audio clip peak/waveform
re-generation routine, as much to avoid empty, blank, zero or
negative-width faulty renderings.
- Do not reset the Files tree-view widgets anymore, when leaving any
drag-and-drop operation (annoyingly, all groups and sub-groups were
being closed without appeal).
- Make builds reproducible byte for byte, by getting rid of the
configure build date and time stamps.
 Qtractor - An audio/MIDI multi-track sequencer
 Qt framework, C++ class library and tools for
cross-platform application and UI development
 JACK Audio Connection Kit
 ALSA, Advanced Linux Sound Architecture
 Linux Audio consortium of libre software for audio-related work
 GPL - GNU General Public License
 jack_link, a JACK transport timebase bridge to Ableton Link 
 Ableton Link, a technology that synchronizes musical beat, tempo,
and phase across multiple applications running on one or more devices
 QmidiNet - A MIDI Network Gateway via UDP/IP Multicast
Enjoy && Keep the fun, as always.
rncbc aka. Rui Nuno Capela
We have decided to extend the deadline for all submissions to February 28.
Could you please spread the news to your networks?
Thanks in advance!
Extension of the deadline for all submissions to Tuesday 28 February 2017, 23:59 GMT+1 (Saint-Etienne time)
Linux Audio Conference LAC2017.
18-21 May, 2017 - Saint-Etienne, France
========== Special INFORMATION =========================
========== Paul DAVIS special guest during LAC2017 ===========
Mr. Paul Davis will introduce the LAC2017 conference in Saint-Etienne.
================ Important Dates =========================
Extended deadline for submissions: February 28, 2017
Acceptance notification: March 25, 2017
Final deadline for ‘camera ready’ paper: April 15, 2017
Author registration deadline: April 20, 2017
Urgent questions: lac(a)linuxaudio.org
More info on the conference website (updated frequently): https://lac2017.univ-st-etienne.fr
• CIEREC (Centre Interdisciplinaire d’Étude et de Recherche sur l’Expression Contemporaine)
• Music Department of Jean Monnet University (UJM)
• GRAME (National Center for Musical Creation)
• Random-Lab, Center for Open Researches in Art, Design and New Media at ESADSE (Art School of Saint-Etienne)
• Associations « Le son des choses » (Acousmatic Music).
Université Jean Monnet
CIEREC - EA3068
35, rue du 11 novembre
42023 Saint-Etienne Cedex 02 - France
port. : +33(0)6 21 66 28 76
tel : +33(0)4 77 42 16 61
fax : +33(0)4 77 42 16 84
The first fix release of GxPlugins.lv2 is out.
The fixes are:
Fix Power switch use as bypass control (lv2:enabled)
Fix don't rebuild on make install
Fix GxVBassPreAmp dc overload in circuit simulation
Also it comes with the new GxSD1.lv2 pedal simulation.
GxPlugins.lv2 is a set of mostly analogue guitar pedal simulations as
LV2 plugins, simulated with the guitarix ampsim toolkit.
They contain the following plugs:
GxBottleRocket.lv2 - -> tube based preamp pedal
GxHotBox.lv2 - -> tube based preamp pedal
GxVBassPreAmp.lv2 - -> transistor based Bass preamp
GxSuppaToneBender.lv2 - -> transistor based Fuzz pedal
GxHyperion.lv2 - -> transistor based Fuzz pedal
GxVoodoFuzz.lv2 - -> transistor based Fuzz pedal
GxSaturator.lv2 - -> saturation plugin
GxVintageFuzzMaster.lv2 - -> transistor based Fuzz pedal
GxSuperFuzz.lv2 - -> transistor based Fuzz pedal
GxVmk2.lv2 - -> transistor based solid stage preamp
GxUVox720k.lv2 - -> transistor based solid stage preamp
GxSlowGear.lv2 - -> volume swell plugin
GxGuvnor.lv2 - -> transistor based overdrive pedal
GxToneMachine.lv2 - -> transistor based Fuzz pedal
GxSD1.lv2 - -> Op-amp based overdrive pedal
I hope they may be useful for the one or the other.
Build instruction and screenshots may be found here:
the release zip file is located here: