Linux-audio-dev

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7516 discussions

by Hermann Meyer

Hi The topic say’s it all, any Graphic designer around here, who like to create a new, overall design for the guitarix project? If so, please contact me. regards hermann

10 years, 8 months

Problems with time-scaling on records

by Álvaro Canelo Noriega

Hi! My name's Álvaro, from Barcelona [it's my first post to this list, so I say hello :) ]. I'm dealing with some issues with time-scaling and I'm a little bit lost trying to find the problem. I'm trying to record an analog audio input using *arecord*, in order to do some fingerprinting (features extraction). The problem is that after every reboot of the recording machine, the record has a different time scale so, as the fingerprint algorithm works with the relative position of energy peaks for different frequencies and the time them happen, the algorithm sometimes works, but sometimes fails. Could you give me any guidance to know where to search a possible solution for the time-scaling issue? Thank you very much in advance! Álvaro --- Forza saluti a tutti bacioni auguri in boca di lupo arrivederci ea presto pino

10 years, 9 months

a LAD survey (I need you !)

by e-rouge

Hello guys, I've followed this community for a while now and this is my contribution : a survey about LAD. *Why ?* I've made this survey to get a snapshot of what LAD community is, and to help understand how it works. This community has always worked in an informal way with ups and downs, and I thought it would be really useful to look at it with objectivity. *Who ?* It is open to any contributors of any Linux Audio Sofwares. *Who/What's for**?* This study aims to stay within LAD community and to provide very practical information. It does not intend to be part of a essay or any academic work. Actually its only purpose will be to provide a solid ground for further discussion about LAD's future. I've already started to gather qualitative data (as some of you know) an, while you answer this, I'll collect some more data about the projects themselves. Once all put together, we should get a very precise overview of what this community actually is. *How ?* *The survey itself takes around 30minuts to complete and they will be anonymized *before any publication (if you wonder why I ask for your name : it's to help me to build a projects-interactions graph as well as few other things). *When ?* Hopefully, I hope to get most answers within 2 or 3 months. After that it'll take a couple of weeks to analyze the data and write something about them. I'll keep you informed. . *Where ?* *Here's the link : * http://tumulte.me/lime/index.php/survey/index/sid/174631/token/bcdqg4tww7n6… I've made my best to think about the most relevant questions and possible answers, but if you thinks something is missing, wrong or whatever please contact me Thanks in advance, Etienne/Tumulte

10 years, 9 months

[LAU] [LAA] Guitarix 0.32.3 release

by Hermann Meyer

Release 0.32.3 is out, Guitarix is a tube amplifier simulation for jack (Linux), with an additional mono and a stereo effect rack. Guitarix includes a large list of plugins[*] and support LADSPA / LV2 plugs as well. The guitarix engine is designed for LIVE usage, and feature ultra fast, glitch and click free, preset switching and is full Midi (learn) and remote (Web-interface/ GUI) controllable (bluez / avahi) Changelog: * fix some rc-style bugs for KDE Qtcurve engine * add 2 new rc-styles (flat and green) * replace old outdated factory presets * add some new plugin presets * add jack midi out port to report state (CC messages) and control multiple instances with one interface * set engine.mute to default midi controller 120 (All Sounds Off) * add new command-line options -L start with Live Play GUI and -M start with engine muted * fix some issues with remote control GUI and external plugs Guitarix is free, open-source software, distributed under the terms of the GNU General Public License (GPL) version 2 or later. Please refer to our project page for more information: http://guitarix.sourceforge.net/ Download Site: http://sourceforge.net/projects/guitarix/ regards hermann _______________________________________________

10 years, 9 months

Linux Audio Conference 2015 - Extension of Deadline

by Frank Neumann

[Sorry for cross-posting, please distribute.] The Linux Audio Conference submissions deadline has been extended for another week! Please note the new deadline: Sunday, Feb 8th, 2015 (23:59 HAST) So, if you were considering to submit a paper but couldn't make up your mind yet, here is your chance to become active! Never forget that this conference lives through the people participating in it. February 8th is the new deadline for all submission types: papers, music, installations, workshop proposals. Check out the link below for more info: http://lac.linuxaudio.org/2015/participation Note that as usual we have created two different OpenConf instances: one for the submission of regular papers, lightning talks and poster sessions, and a second one for music, installations and workshop proposals. For the latter, please also check the detailed instructions at http://lac.linuxaudio.org/2015/download/lac2015-call-for-miw.pdf. If you have any questions concerning your submission, please don't hesitate to contact us at lac(a)linuxaudio.org, or through our #lac2015 IRC channel on freenode.net. Please spread this information to anyone who might be interested. We look forward to your submissions and hope to meet you in Mainz in April! Sincerely, The LAC 2015 Organizing Team

10 years, 9 months

[ANN] Qtractor 0.6.5 - The Fermion Ray beta is out!

by Rui Nuno Capela

Spread the word, Qtractor 0.6.5 (fermion ray beta) is out! Release highlights: * MIDI clip record/overdubbing (NEW) * Extended track multi-selection for mute/solo (NEW) * VST-shell sub-plugins support (NEW) * JACK transport start/stop resilience (FIX) And still, Qtractor is an audio/MIDI multi-track sequencer application written in C++ with the Qt4 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. Website: http://qtractor.sourceforge.net Project page: http://sourceforge.net/projects/qtractor Downloads: http://sourceforge.net/projects/qtractor/files - source tarball: http://download.sourceforge.net/qtractor/qtractor-0.6.5.tar.gz - source package (openSUSE 13.2): http://download.sourceforge.net/qtractor/qtractor-0.6.5-15.rncbc.suse132.sr… - binary packages (openSUSE 13.2): http://download.sourceforge.net/qtractor/qtractor-0.6.5-15.rncbc.suse132.i5… http://download.sourceforge.net/qtractor/qtractor-0.6.5-15.rncbc.suse132.x8… - quick start guide & user manual (see also: the wiki): http://download.sourceforge.net/qtractor/qtractor-0.5.x-user-manual.pdf - wiki (help really wanted!): http://sourceforge.net/p/qtractor/wiki/ Weblog (upstream support): http://www.rncbc.org License: Qtractor is free, open-source software, distributed under the terms of the GNU General Public License (GPL) version 2 or later. Change-log: - Connections lines now drawn with anti-aliasing; connections splitter handles width is now reduced; the MIDI connections splitter pane sizes are now saved and restored properly. - Extended multi-selection is now featured on the track-list (main left-pane), primarily allowing for group mute/solo (and monitor) switching. - Track-list (left pane) header column widths are now saved and made persistent across application power cycle (double-click reverts to the old original default). - Minor fixes on the MIDI clip event list editor, also making sure the current event is visible on the piano-roll view. - As long to prevent asynchronous mistakes to JACK transport state changes, an internal slack-delay is now introduced after self-initiated transport commands (eg. start/stop). - The MIDI clip editor (aka. piano-roll) was missing to clear or reset the current selection when no shift/ctrl keyboard modifier is in effect. - VST-shell sub-plugins are now supported (as suggested by abique aka. Alexandre Bique, thanks). - MIDI clip record/overdubbing is now possible (Clip/Record on the main menu or File/Record from the MIDI clip editor. - Make sure some audio sample file encodings (eg. old Ogg Vorbis) does not head-start on audio peak generation. See also: http://www.rncbc.org/drupal/node/858 Enjoy && have fun. -- rncbc aka. Rui Nuno Capela

10 years, 9 months

Fwd: MusE 2.2.1 released

by Robert Jonsson

MusE 2.2.1 - 2015-01-28 Hi All! We've just released version 2.2.1 of MusE. To make way for bigger things we decided to release a minor update with some additions and some bugs fixed. Have fun! Fixes and improvements include: - Optimizations to lv2 rtfifo - Fix for potential crash on startup due to defaultStyle - Updated Czech translation from Pavel Fric - Added explicit link library to simpledrums, didn't appear on some systems - Added some new keyboard shortcuts, duplicate tracks, edit track name - Make it possible to mute/solo lots/all of tracks at once For more information and additional changes see the full changelog at: https://github.com/muse-sequencer/muse/blob/muse_2_2_1/muse2/ChangeLog News section: http://muse-sequencer.org/index.php/News Download: http://muse-sequencer.org/index.php/Download Demos page: http://muse-sequencer.org/index.php/Demos Forum: http://muse-sequencer.org/forum/ Keep on Rocking! The MusE Team

10 years, 9 months

[ANN] Vee One Suite 0.6.0 - A third official beta release!

by Rui Nuno Capela

Howdy, Once again, the 'Vee One Suite' of 'old-school' software instruments, featuring a 'gang of three' made of synthv1 [1] as a polyphonic synthesizer, samplv1 [2] a polyphonic sampler and drumkv1 [3] as a drum-kit sampler, are being released into the wild as in so called 'beta' phase. Changes for this one third beta release are as follows: - MIDI bank-select/program-changes is now supported, for patch, preset and/or instrument program control. - New Help/Configure dialog is introduced for editing the also new MIDI bank/programs interface and user preference options as well (new home of the old Help/Use native dialogs option). - Presets may now be specified by base name, as an alternative to the complete preset file-path on command line argument (re. stand-alone JACK client). - Fixed parameters A/B comparison swap. As usual, all made available in dual form: - a pure stand-alone JACK [4] client with JACK-session, NSM [5] (Non Session management) and both JACK MIDI and ALSA [6] MIDI input support; - a LV2 [7] instrument plug-in. The Vee One Suite are free and open-source Linux Audio software, distributed under the terms of the GNU General Public License (GPL) [8] version 2 or later. Details are dumped below, business as usual ;) * synthv1 - an old-school polyphonic synthesizer [1] * synthv1 0.6.0 (third official beta) has been released! synthv1 is an old-school all-digital 4-oscillator subtractive polyphonic synthesizer with stereo fx. LV2 URI: http://synthv1.sourceforge.net/lv2 website: http://synthv1.sourceforge.net downloads: http://sourceforge.net/projects/synthv1/files - source tarball: http://download.sourceforge.net/synthv1/synthv1-0.6.0.tar.gz - source package: http://download.sourceforge.net/synthv1/synthv1-0.6.0-19.rncbc.suse132.src.… - binary packages: http://download.sourceforge.net/synthv1/synthv1-0.6.0-19.rncbc.suse132.i586… http://download.sourceforge.net/synthv1/synthv1-0.6.0-19.rncbc.suse132.x86_… * samplv1 - an old-school polyphonic sampler [2] * samplv1 0.6.0 (third official beta) has been released! samplv1 is an old-school polyphonic sampler synthesizer with stereo fx. LV2 URI: http://samplv1.sourceforge.net/lv2 website: http://samplv1.sourceforge.net downloads: http://sourceforge.net/projects/samplv1/files - source tarball: http://download.sourceforge.net/samplv1/samplv1-0.6.0.tar.gz - source package: http://download.sourceforge.net/samplv1/samplv1-0.6.0-19.rncbc.suse132.src.… - binary packages: http://download.sourceforge.net/samplv1/samplv1-0.6.0-19.rncbc.suse132.i586… http://download.sourceforge.net/samplv1/samplv1-0.6.0-19.rncbc.suse132.x86_… * drumkv1 - an old-school drum-kit sampler [3] * drumkv1 0.6.0 (third official beta) has been released! drumkv1 is an old-school drum-kit sampler synthesizer with stereo fx. LV2 URI: http://drumkv1.sourceforge.net/lv2 website: http://drumkv1.sourceforge.net downloads: http://sourceforge.net/projects/drumkv1/files - source tarball: http://download.sourceforge.net/drumkv1/drumkv1-0.6.0.tar.gz - source package: http://download.sourceforge.net/drumkv1/drumkv1-0.6.0-15.rncbc.suse132.src.… - binary packages: http://download.sourceforge.net/drumkv1/drumkv1-0.6.0-15.rncbc.suse132.i586… http://download.sourceforge.net/drumkv1/drumkv1-0.6.0-15.rncbc.suse132.x86_… References: [1] synthv1 - an old-school polyphonic synthesizer http://synthv1.sourceforge.net/ [2] samplv1 - an old-school polyphonic sampler http://samplv1.sourceforge.net/ [3] drumkv1 - an old-school drum-kit sampler http://drumkv1.sourceforge.net/ [4] JACK Audio Connection Kit http://jackaudio.org/ [5] NSM, Non Session Management http://non.tuxfamily.org/nsm/ [6] ALSA, Advanced Linux Sound Architecture http://www.alsa-project.org/ [7] LV2, Audio Plugin Standard, the extensible successor of LADSPA http://lv2plug.in/ [8] GNU General Public License http://www.gnu.org/copyleft/gpl.html See also: http://www.rncbc.org/drupal/node/857 Enjoy && have fun. -- rncbc aka Rui Nuno Capela rncbc(a)rncbc.org

10 years, 9 months

audio watermark for av sync

by Patrick Shirkey

Hi, I found this old thread about watermarking. http://linux-audio.4202.n7.nabble.com/Looking-for-Audio-Watermarking-Advice… I have a potential use for watermarking that is entirely above board and completely within the realms of open source technology while also being business friendly at the same time. It's a potential solution to an AV sync issue where there are no other hardware sync solutions available (BLE, NFC, wifi, etc...) The host environment has ONLY audio and video hardware installed. In this situation it has been suggested that watermarking could allow syncing an audio track located on a mobile device with the main audio stream that is playing on speakers in the display room. Obviously the success of this solution is entirely dependant on the response of the mic->signal processing->output chain. I don't think Android devices will be viable in this situation ;-) However I thought it might be interesting for some people here as a counterpoint to the more sinister use of audio watermarking. The processing algorithm could be 100% open source. -- Patrick Shirkey Boost Hardware Ltd

10 years, 9 months

Linux Audio Conference 2015 - Call for Participation

by Albert Graef

[Sorry for cross-posting, please distribute.] Linux Audio Conference 2015 - Call for Participation (Due to exceptional circumstances, this announcement comes a bit late, so please note the early deadline of Feb 1st for submissions. We apologize.) We are happy to announce the next issue of the Linux Audio Conference (LAC), April 9-12, 2015 @ JGU | Johannes Gutenberg University, in Mainz, Germany. http://lac.linuxaudio.org/2015/ The Linux Audio Conference is an international conference that brings together musicians, sound artists, software developers and researchers, working with Linux as an open, stable, professional platform for audio and media research and music production. LAC includes paper sessions, workshops, and a diverse program of electronic music. *Call for Papers, Workshops, Music and Installations* We invite submissions of papers addressing all areas of audio processing and media creation based on Linux and other open source software. Papers can focus on technical, artistic and scientific issues and should target developers or users. In our call for music, we are looking for works that have been produced or composed entirely/mostly using Linux and other open source music software. The online submission of papers, workshops, music and installations is now open at http://lac.linuxaudio.org/2015/participation The deadline for all submissions is Feb 1st, 2015 (23:59 HAST). You are invited to register for participation on our conference website. There you will find up-to-date instructions, as well as important information about dates, travel, lodging, and so on. This year's conference is hosted by the Computer Music Research Group (Bereich Musikinformatik) at the IKM (Institut für Kunstgeschichte und Musikwissenschaft) of the Johannes Gutenberg University (JGU) at Mainz. Being founded in 1991, our research group has been among the first German academic institutions in this interdisciplinary field at the intersection of music, mathematics, computer science and media technology. In our media lab students are working almost exclusively with Linux, and in our research we are also devoted to contributing to the growing body of open source audio and computer music software. http://www.musikwissenschaft.uni-mainz.de/Musikinformatik/ We look forward to your submissions and hope to meet you in Mainz in April! Sincerely, The LAC 2015 Organizing Team -- Dr. Albert Gr"af Computer Music Research Group, JGU Mainz, Germany Email: aggraef(a)gmail.com WWW: https://plus.google.com/+AlbertGraef

10 years, 9 months

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Linux-audio-dev