Linux-audio-dev February 2017

linux-audio-dev@lists.linuxaudio.org

20 participants
11 discussions

by Tim Goetze

http://quitte.de/dsp/caps.html The latest release of the caps audio plugin suite contains a number of bug fixes and improvements as well as changes intended to make it more suitable for low-power systems. http://quitte.de/dsp/caps.html#CHANGES Most notably, support for a variety of little-used features has been dropped, reducing the binary size by roughly a third. There's also a new plugin implementing simplistic linear emulation of several guitar amplifier loudspeaker cabinets with reduced computational complexity: http://quitte.de/dsp/caps.html#CabinetIII The compressor plugins now report current gain reduction: http://quitte.de/dsp/caps.html#Compress http://quitte.de/dsp/caps_0.9.24.tar.bz2 Cheers, Tim

6 years, 4 months

sourceforge?

by Will Godfrey

Anyone else having problems pushing commits there? It was fine yesterday, but today I get an instant refusal. No problems with github. -- Will J Godfrey http://www.musically.me.uk Say you have a poem and I have a tune. Exchange them and we can both have a poem, a tune, and a song.

7 years, 5 months

io GNU/Linux 2017.01 released

by io GNU/Linux

Hi all, 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 more stuff... For more infos: manual, packages list, screenshots, video etc... Visit: -> http://io.gnu.linux.free.fr -> https://sourceforge.net/projects/io-gnu-linux/ Feedbacks welcome, enjoy :) MK

7 years, 11 months

Failed to connect to session bus for device reservation

by Fokke de Jong

Hi Guys, I’m trying to set up a minimal audio system (without X11) based on the ubuntu mini-iso. When trying to start jack, i get this dbus error message: ... sudo /usr/bin/jackd -p512 -dalsa -r48000 -p64 -n2 -D -Chw:MADIFXtest -Phw:MADIFXtest jackdmp 1.9.10 Copyright 2001-2005 Paul Davis and others. Copyright 2004-2013 Grame. jackdmp comes with ABSOLUTELY NO WARRANTY This is free software, and you are welcome to redistribute it under certain conditions; see the file COPYING for details no message buffer overruns no message buffer overruns no message buffer overruns JACK server starting in realtime mode with priority 10 Failed to connect to session bus for device reservation Unable to autolaunch a dbus-daemon without a $DISPLAY for X11 Audio device hw:MADIFXtest cannot be acquired... Cannot initialize driver JackServer::Open failed with -1 Failed to open server ... I’ve seen others mention the error but have not really found a solution. I guess part of the problem is that I’m not really sure what the error means :-) So if anyone could be so kind to enlighten me? cheers, Fokke

7 years, 12 months

need help mixing on the fly

by David Griffith

For a couple years I've been trying, without success, to reliably mix two audio streams on the fly in C. I'm using libao, libmodplug, libsamplerate, libsndfile, and libvorbis. The program is Frotz (https://github.com/DavidGriffith/frotz), a Z-machine emulator for playing old Infocom games as well as newer ones. Could I please get some help with this? -- David Griffith dave(a)661.org

8 years

Re: [LAD] [LAU] LAC2017 extended deadline for all submissions February 28

by Laurent Pottier

Hello Bruno, Thank you for your message. > Le 19 févr. 2017 à 00:58, Bruno Ruviaro <bruviaro(a)scu.edu> a écrit : > > Hi Albert et alt., > > The instructions for music submissions say > > "required file format is PDF, formatted for A4 paper. It includes: > • registration form available on the download page of the conference website; > • technical rider of the work; > • video or audio link to the project; > • an artbook." > Where is this registration form? Is this a music-specific form? I can't seem to find it anywhere. You just need to register on the scienceconf website. There is no other special registration form. > > Should I upload an audio file of the work directly as "supplementary data" on scienceconf? > > Do I need to provide an audio link if I have already uploaded a file as "supplementary data »? You need to provide a web link to the audio files and to any other material you want > What is meant by "artbook »? You have to add a CV, that presents your biography and past works. Cheers Laurent -- ******************************************** 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 laurent.pottier(a)univ-st-etienne.fr ********************************************

8 years

[ANN] Qtractor 0.8.1 - The Sticky Tauon is out!

by Rui Nuno Capela

Hello everybody! Qtractor 0.8.1 (sticky tauon) is out! Release highlights: * 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 [8] is the dang reason. And then, you may now know and play the badass with Ableton Link [7]. Keep in mind that jack_link [7] 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 [9] 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 [1]. I guess it was about time. Nuff said. 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. Website: http://qtractor.sourceforge.net http://qtractor.org Project page: http://sourceforge.net/projects/qtractor Downloads: http://sourceforge.net/projects/qtractor/files - source tarball: http://download.sf.net/qtractor/qtractor-0.8.1.tar.gz - source package: http://download.sf.net/qtractor/qtractor-0.8.1-29.rncbc.suse.src.rpm - binary packages: http://download.sf.net/qtractor/qtractor-0.8.1-29.rncbc.suse.i586.rpm http://download.sf.net/qtractor/qtractor-0.8.1-29.rncbc.suse.x86_84.rpm Git repos: http://git.code.sf.net/p/qtractor/code https://github.com/rncbc/qtractor.git https://gitlab.com/rncbc/qtractor.git https://bitbucket.org/rncbc/qtractor.git Wiki (help still wanted!): http://sourceforge.net/p/qtractor/wiki/ License: 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. Change-log: - 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 state, hopefully. - 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. References: [1] Qtractor - An audio/MIDI multi-track sequencer http://qtractor.sourceforge.net http://qtractor.org [2] Qt framework, C++ class library and tools for cross-platform application and UI development http://qt.io/ [3] JACK Audio Connection Kit http://jackaudio.org [4] ALSA, Advanced Linux Sound Architecture http://www.alsa-project.org/ [5] Linux Audio consortium of libre software for audio-related work http://linuxaudio.org [6] GPL - GNU General Public License http://www.gnu.org/copyleft/gpl.html [7] jack_link, a JACK transport timebase bridge to Ableton Link [8] https://github.com/rncbc/jack_link [8] Ableton Link, a technology that synchronizes musical beat, tempo, and phase across multiple applications running on one or more devices https://github.com/Ableton/link [9] QmidiNet - A MIDI Network Gateway via UDP/IP Multicast http://qmidinet.sourceforge.net See also: http://www.rncbc.org/drupal/node/1809 Enjoy && Keep the fun, as always. -- rncbc aka. Rui Nuno Capela rncbc(a)rncbc.org

8 years

Re: [LAD] [LAU] LAC2017 extended deadline for all submissions February 28

by Albert Graef

On Wed, Feb 8, 2017 at 11:02 PM, Laurent Pottier < laurent.pottier(a)univ-st-etienne.fr> wrote: > We have decided to extend the deadline for all submissions to February 28. All right, (some more) time to whip out emacs, vi or even LibreOffice and get your papers in good shape now. ;-) It's a different site for the submissions, but the templates are the same as always, so if you made yourself your own custom LAC template, you can go on using it. Just a quick side note for people who are looking for the "paper" (main track) submission category on the submission page at https://lac2017.sciencesconf.org/: use "Conference". sciencesconf.org is a French site (the submission page is in English, though), and conférence in French means "talk" as well as "conference", so that's what the "papers" category is. This should be fairly obvious, but I stumbled onto this myself, so I thought I'd mentioned it for the non-French-speaking population here. If you have any questions concerning the submission process, please just post them in this thread, and Laurent, Yann or myself will hopefully be able to help. Happy writing, Albert -- Dr. Albert Gr"af Computer Music Research Group, JGU Mainz, Germany Email: aggraef(a)gmail.com WWW: https://plus.google.com/+AlbertGraef

8 years

LAC2017 extended deadline for all submissions February 28

by Laurent Pottier

Hello, 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 https://lac2017.univ-st-etienne.fr ========== 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 Organising team: • 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). Best regards, Laurent Pottier -- ******************************************** 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 laurent.pottier(a)univ-st-etienne.fr ********************************************

8 years

[LAU] [LAA] First Fix Release of GxPlugins.lv2

by Hermann Meyer

Hi 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: https://github.com/brummer10/GxPlugins.lv2 the release zip file is located here: https://github.com/brummer10/GxPlugins.lv2/releases regards hermann

8 years

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Linux-audio-dev February 2017