The first unified LV2 release, LV2 1.0.0, is out.
This release merges the previous lv2core package with all the official
extension packages, as well as example plugins, lv2specgen, and
additional data. From a developer point of view, the biggest change is
that all LV2 API headers can be used by simply checking for the single
pkg-config package "lv2" (for compatibility the previous "lv2core"
package is still installed). Implementations are encouraged to abandon
the "copy paste headers" practice and depend on this package instead.
With this release, several new extensions have become stable that
together greatly increase the power of LV2: atom, log, parameters,
patch, port-groups, port-props, resize-port, state, time, worker.
Documentation and more detailed change logs: http://lv2plug.in/ns/
More information about LV2: http://lv2plug.in/
QMidiArp 0.5.2 has just seen the light of the day. It brings mainly
two improvements. One is a comeback, that of tempo changes on the fly,
and that now includes also tempo changes of a potential Jack Transport
master. Also the Jack Transport starting position is finally taken into
account, so that QMidiArp should be in sync also when starting the
transport master not at zero.
The second one is Non Session Manager support, mainly thanks to the work done by Roy Vegard Ovesen!
Note that for compiling in NSM support you will now need liblo as dependency.
Enjoy, and enjoy LAC in Graz this year
QMidiArp is an advanced MIDI arpeggiator, programmable step sequencer and LFO.
Everything is on
o Tempo changes are again possible while running, both manually or by
a Jack Transport Master
o Jack Transport position is now taken into account when starting,
QMidiArp used to start always at zero
o Muting and sequencer parameter changes can be deferred to pattern
end using a new toolbutton
o Modules in the Global Storage window have mute/defer buttons
o Global Storage location switches can be set to affect only the pattern
o Non Session Manager support with "switch" capability (thanks to
Roy Vegard Ovesen)
o NSM support requires liblo development headers (liblo-dev package)
I’m pleased to announce the initial public beta release of GlassCoder, a minimalist JACK live encoder client for Icecast and Shoutcast streaming servers. GlassCoder is available under the GNU Public License version 2. Some features available in this initial beta release:
Support for Icecast (v2) and Shoutcast (v1) streaming audio servers
Support for streaming MPEG Layer 3 (‘MP3’) audio
Support for the JACK Audio Connection Kit (http://www.jackaudio.org)
GlassCoder is a ‘minimalist’ client in the sense that it utilizes no GUI or configuration file components whatever; its entire ‘user interface’ consists of a command-line invocation, making it particularly well-suited for use cases where the encoder is driven by an external system, such as an automation system or script. Full documentation is provided by the included man page.
Further information and download links are available at https://github.com/ElvishArtisan/GlassCoder
| Frederick F. Gleason, Jr. | Chief Developer |
| | Paravel Systems |
| Research is what I'm doing when I don't know what I'm doing. |
| -- Werner von Braun |
We're excited about the upcoming Linux Audio Conference, featuring a
tightly packed diverse schedule with 77 events by over 100 persons!
The conference schedule has just been published at
Apart from presentations, there are workshops, a poster-session and five
concerts in 3 days. The 4th day of the conference is dedicated to an
excursion: http://lac.linuxaudio.org/2014/excursion a simple overview of
the complete schedule can be found in the printable version of the program.
If you want to attend and have not yet done so, please register at
Looking forward to seeing you all in May at the ZKM.
robin - LAC'14 team
Once again, it's springtime.
Once again, the planet revolved and stepped forward against its mother star.
Hence the <em>three bees</em> release... it won't be that far fetched if
you find this naming a deliberate pun riddle indeed--the wise will know
already while the clueless will get it sudden in a couple of days ;)
Well, no big surprises nor earthshaking features are being here pitched
then, just some small and otherwise humble improvements and fixes and
Nevertheless and not just for the record that is, it marks the day of a
long overdue and severely procrastinated <em>beta</em> phase release.
Whatever. It's dang official now: one step closer to <em>omega</em>, no
Contrary to, maybe, newer generations, I <em>always</em> strive to say
the least. As to say about literal face-value meaning, as written and
read on timeless textbooks, it's all left in between the lines or, this
part is the one I like most, left over as an exercise--in some kind of
healthy masochism, perhaps :).
Qtractor 0.6.0 (byte bald beta) is now released!
* Plugin automation high resolution option (NEW)
* Plugin 'About' page (NEW)
* Native DE dialogs option (NEW)
* Follow play-head slack time (NEW)
* MIDI RPN/NRPN 14-bit controllers input (FIX)
- source tarball:
- source package (openSUSE 13.1):
- binary packages (openSUSE 13.1):
- quick start guide & user manual (outdated):
- help wanted (on Qtractor Wiki ;))
Weblog (upstream support):
Qtractor is free, open-source software, distributed under the terms
of the GNU General Public License (GPL) version 2 or later.
- New user option added: on whether to save plugins automation values
with higher resolution as possible, using 14-bit NRPN: cf.
View/Options.../Plugins/Experimental/High resolution plugin automation
- Generic native plugin dialogs now shows an additional "About" last
page where authorship credits are due.
- A new user preference option is now in place for whether to use
desktop environment's own native file requester/browser dialogs
(View/Options.../Display/Dialogs/Use native dialogs).
- A bit of slack have been introduced to put "Follow Playhead" (aka.
auto-scroll view mode) on hold, while doing in-flight selection edit moves.
- Fixed some user interface related annoyances while on the MIDI
Controllers mappings (ie. View/Controllers...).
- Fixed port origin on MIDI RPN/NRPN 14-bit controllers input.
- A discretionary plug-in unique identifier have been devised for when
more than one from the same type are inserted on a bus or track chain,
avoiding destructive clashing of automation data.
- Horizontal scrolling shift+mouse-wheel direction now reversed.
- LV2 Dyn(amic)-manifest support is now optional (default=off); cf.
View/Options.../Plugins/Experimental/LV2 Dynamic Manifest support).
- The following options, although decieved on View/Options... as global
configuration options, were always and still are proper session instance
properties: (JACK) Transport mode, MMC mode, MMC device, MIDI SPP and
MIDI Clock modes, are now shown there reflecting the current open
- A couple of run-time circumventions have been hacked in, both strictly
related to when NSM session management is in charge: 1) the new session
template feature is disabled (was aborting initial NSM new client
additions); 2) the native (as from the desktop environment eg. KDE) file
browser/requester dialogs are disabled (were taking too long to list the
current directory on first time invocation).
- Update current automation/curve nodes selection while changing
horizontal (time axis) zoom levels.
- One liner's attempt to make it consistent behaviour on resizing and
moving multiple selected notes or events while on the MIDI clip editor
(aka. piano-roll; after a ticket request from Daniel MacDonald aka.
- Introducing tiny quarter-note/crotchet/seminima/beat icon on all
snap-to-beat selection items get a new icon :).
- Corrected some audio buffering boundary conditions that were causing
dead-loops/freezes while merging some audio clips.
- Session auto-save period was chronically reduced to one third of its
user setting; non critical but fixed now.
See you all on LAC2014@ZKM-Karlsruhe!
and have a happy new springtime, cheers!
Enjoy && yet again, have (lots of) fun.
rncbc aka Rui Nuno Capela
Apologies for x-posting.
It is my great pleasure to announce immediate availability of the latest
Pd-L2Ork, its K12 module, as well as the latest version of Pd-L2Ork for the
Raspberry Pi platform that includes comprehensive set of objects for
sensing, including GPIO with pulse-width-modulation support, and analog
sensor monitoring support (via MCP3008 A/D chip and SPI module). In addition
to a slew of bug-fixes and improvements, pd-l2ork's structures have seen a
significant overhaul (thanks to contributions from Jonathan Wilkes and
others) now supporting a majority of the SVG spec and allowing for some
powerful manipulations of structs inside pd patches. Please note that the
structs are still under development, so some instabilities remain. Other
notable Changelog Highlights for this release include:
*new drawimage and drawsprite structs
*improved classinfo, canvasinfo, and pdinfo objects
*proper queuing for all iemgui objects and other improvements
*New preferences dialog
*New customizable arrays and jump-on-click ability
*Improved sanity checks for graph-on-parent patches
*over a hundred of other bug fixes and improvements
For a complete list of changes please consult the attached git-extracted
The new release is accompanied by a comprehensive documentation on how to
connect RPi to the computer as well as run and configure Pd-L2Ork (and its
K12 module) for operation on RPi. In addition, as part of this release, the
regular Pd-L2Ork install instructions have been also streamlined to make
them easier to navigate.
For those in Virginia Tech area, the new release candidate will be showcased
at the upcoming Institute for Creativity, Arts, and Technology community
meeting this Friday 830-930am in ICAT Sandbox.
For more info visit:
http://l2ork.music.vt.edu/main/?page_id=56 (x86_64 version with updated
http://l2ork.music.vt.edu/main/?page_id=2288 (Raspberry Pi version download
A contemporary intermedia ensemble, L2Ork, thrives upon the quintessential
form of collaboration found in the western classical orchestra and its
cross-pollination with increasingly accessible human-computer interaction
technologies for the purpose of exploring expressive power of gesture,
communal interaction, discipline-agnostic environment, and the
multidimensionality of arts. In addition to furthering the artistic
exploration of the newfound genre, the ensemble's particular focus is on
integration of Taiji (Tai Chi) choreography into its performance practice as
well as its philosophy.
Founded by Dr. Ivica Ico Bukvic in May 2009, and since 2014 co-directed with
Dr. Charles Nichols, L2Ork is a part of the interdisciplinary initiative by
the Virginia Tech Digital Interactive Sound & Intermedia Studio (DISIS) and
the signature initiative of the newfound Institute for Creativity, Arts, and
Technology (ICAT). As the world's first Linux-based laptop orchestra L2Ork
offers optimal infrastructure for creative research at minimal cost. By
providing a seamless integration of arts and sciences it is in part designed
to bridge the gap between STEM (Science, Technology, Engineering, Math) and
the Arts, with particular focus on K-12 (Kindergarten to 12th grade)
Pd-L2Ork is a Linux-centric fork of the legendary Pure-Data. With over three
years of development and 700 new features, bug-fixes, and improvements, its
focus is primarily on the laptop orchestra environment, and more
specifically L2Ork setup. In 2012 Pd-L2Ork introduced unique K-12
educational module, offering GUI-centric granular approach to learning
Pd/Max-like programming environments using a collection of abstractions
geared towards K-12 students. Most recently, Pd-L2Ork is also supporting
Raspberry Pi platform, paving way towards sub-$100 laptop orchestra
QUESTIONS & INQUIRIES
Ivica Ico Bukvic, D.M.A.
Composition, Music Technology
Director, DISIS Interactive Sound & Intermedia Studio
Director, L2Ork Linux Laptop Orchestra
Head, ICAT IMPACT Studio
Dept. of Music - 0240
Blacksburg, VA 24061
(540) 231-5034 (fax)
This is now available from:
Apart from a number of bug fixes we have:
Circle and Spike AddSynth waveshapes
MIDI bank and program change - with extra configuration in 'settings'
Included patch set additions and updates.
Next on the roadmap is midilearn and extra control exposure.
Our list is:
Will J Godfrey
Say you have a poem and I have a tune.
Exchange them and we can both have a poem, a tune, and a song.
AlsaModularSynth is a MIDI controlled realtime modular synthesizer
and effect processor with support for LADSPA and JACK.
After several years of collecting fixes and enhancements the new
release provides a long list of changes:
o Linker error "undefined reference to symbol 'dlsym@@GLIBC_2.2.5'"
on Fedora 13.
o Crash on using looped signal paths
o Armel compile error (debian #570848)
o Prevent crash if jack handle is NULL (lp #553366)
o Fix preferences dialog to show current color setup
o Fix broken Yes/No/Cancel response on program exit
o Fix memory leak in preferences widget
o Fix triggered reset of LFO saw signals, patch provided by Bill
o Reorganized commandline options for input and output to
be valid for Alsa and JACK
o SIGUSR1 handler added to enable LADI session handling on
application level 1.
o Support for libclalsadrv API version 2.0.0
o Support for libzita-alsa-pcmi as an alternative for libclalsadrv
o Improved port selection handling, patch provided by Sebastien
o New context menu to disconnect module output ports
o Support for JACK session handling
o Rewritten preferences dialog
o New about dialog
o New option for saving window geometry (session handling)
o New option hiding recently used files menu (keep secrets)
o Add new menu item to open demo patch files directly
o Add new menu item to open demo instrument patch files directly
o Add keyboard shortcuts for module configuration dialogs
o New option for module position grid (snap to grid)
o New V8 Sequencer module, provided by Bill Yerazunis
o New Analog Memory module, provided by Bill Yerazunis
o New Bitgrinder module, provided by Bill Yerazunis
o New Hysteresis module, provided by Bill Yerazunis
o New VC-Delay module, provided by Bill Yerazunis
o Add Pulsetrain Noise type to Noise 2 module, patch provided by
o New FFT Vocoder module, provided by Bill Yerazunis
o Make control center window position and MIDI settings persistent
o Add support for Qt5 (configure option --enable-qt5)
o Separate handling of color scheme directory from patch file
o Improved handling of CXXFLAGS variables
o Add check for Ladspa header file.
o Obsolete commandline option -l (preset file) removed
o New commandline option for program version (--version)
A new version of aubio, 0.4.1, is out.
aubio is a library of functions to perform audio feature extractions
- note onset detection
- pitch detection
- beat tracking
- MFCC computation
- spectral descriptors
This version is mostly focusing on media file input and output. Here is
a quick overview of the changes.
The most interesting feature in this release concerns aubiocut. Thanks
to the sponsoring of Mark Suppes, the python script to slice sound
steams was extended to be sample accurate, cut overlapping segments, and
work on multiple channels.
New source and sink objects have been added to let aubio read and write
WAV files, even when built with no external libraries. This should
simplify the use of aubio on platforms such as Android or Windows.
Existing sources and sinks have been extended to read and write from and
to multiple channels. This makes python-aubio one of the fastest and
most versatile Python module to read and write media files.
This release also comes with a stack of bug fixes and code clean-ups.
Note: this version is API and ABI compatible with 0.4.0. Since it only
adds new features to the existing interface, your existing source and
binary code will keep working without any modifications.
To find out more about aubio and this release:
Post announcing aubio 0.4.1:
ChangeLog for aubio 0.4.1:
Source tarball, signature and digests: