Linux-audio-dev October 2019

linux-audio-dev@lists.linuxaudio.org

12 participants
10 discussions

[ANN] Vee One Suite 0.9.11 - A Halloween'19 Release

by Rui Nuno Capela

Horror! The 'Vee One Suite' of so called 'old-school' software instruments, synthv1 [1] as a polyphonic subtractive synthesizer, samplv1 [2] a polyphonic sampler synthesizer, drumkv1 [3] as yet another drum-kit sampler and padthv1 [4] as a polyphonic additive synthesizer, are here and now released for the global Halloween evening, and all making up to this mythical version 0.9.11 ;) As always, all provided in dual form: - a pure stand-alone JACK client with JACK-session [5], NSM (Non Session management [6]) and both JACK MIDI and ALSA MIDI [7] input support; - a LV2 instrument plug-in [8]. Changes for this creepy release are quite revolutionary;) - When using autotools and ./configure --with-qt=..., it is also necessary to adjust the PKG_CONFIG_PATH environment variable (after a merge request by plcl aka. Pedro López-Cabanillas, while on qmidinet, thanks). - Upstream packaging is now split to JACK standalone and LV2 plugin only: the former shared common core and UI package is now duplicated but statically linked though. The 'Vee One Suite' are free, open-source Linux Audio [10] software, distributed under the terms of the GNU General Public License (GPL) [11] version 2 or later. **synthv1 - an old-school polyphonic synthesizer [1] ** synthv1 0.9.11 (halloween'19) released! synthv1 is an old-school all-digital 4-oscillator subtractive polyphonic synthesizer with stereo fx. LV2 URI: http://synthv1.sourceforge.net/lv2 website: https://synthv1.sourceforge.io http://synthv1.sourceforge.net project page: https://sourceforge.net/projects/synthv1 downloads: https://sourceforge.net/projects/synthv1/files - source tarball: https://download.sf.net/synthv1/synthv1-0.9.11.tar.gz - source package: https://download.sf.net/synthv1/synthv1-0.9.11-50.rncbc.suse.src.rpm - binary packages (openSUSE Tumbleweed): https://download.sf.net/synthv1/synthv1-0.9.11-50.rncbc.suse.x86_84.rpm https://download.sf.net/synthv1/synthv1-lv2-0.9.11-50.rncbc.suse.x86_84.rpm https://download.sf.net/synthv1/synthv1-common-0.9.11-50.rncbc.suse.x86_84.… - AppImage [9] package (JACK stand-alone only): https://download.sf.net/synthv1/synthv1-0.9.11-50.x86_64.AppImage git repos: https://git.code.sf.net/p/synthv1/code https://github.com/rncbc/synthv1.git https://gitlab.com/rncbc/synthv1.git https://bitbucket.org/rncbc/synthv1.git **samplv1 - an old-school polyphonic sampler [2]** samplv1 0.9.11 (halloween'19) released! samplv1 is an old-school polyphonic sampler synthesizer with stereo fx. LV2 URI: http://samplv1.sourceforge.net/lv2 website: https://samplv1.sourceforge.io http://samplv1.sourceforge.net project page: https://sourceforge.net/projects/samplv1 downloads: https://sourceforge.net/projects/samplv1/files - source tarball: https://download.sf.net/samplv1/samplv1-0.9.11.tar.gz - source package: https://download.sf.net/samplv1/samplv1-0.9.11-50.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): https://download.sf.net/samplv1/samplv1-0.9.11-50.rncbc.suse.x86_84.rpm https://download.sf.net/samplv1/samplv1-lv2-0.9.11-50.rncbc.suse.x86_84.rpm https://download.sf.net/samplv1/samplv1-common-0.9.11-50.rncbc.suse.x86_84.… - AppImage [9] package (JACK stand-alone only): https://download.sf.net/samplv1/samplv1-0.9.11-50.x86_64.AppImage git repos: https://git.code.sf.net/p/samplv1/code https://github.com/rncbc/samplv1.git https://gitlab.com/rncbc/samplv1.git https://bitbucket.org/rncbc/samplv1.git **drumkv1 - an old-school drum-kit sampler [3]** drumkv1 0.9.11 (halloween'19) released! drumkv1 is an old-school drum-kit sampler synthesizer with stereo fx. LV2 URI: http://drumkv1.sourceforge.net/lv2 website: https://drumkv1.sourceforge.io http://drumkv1.sourceforge.net project page: https://sourceforge.net/projects/samplv1 downloads: https://sourceforge.net/projects/drumkv1/files - source tarball: https://download.sf.net/drumkv1/drumkv1-0.9.11.tar.gz - source package: https://download.sf.net/drumkv1/drumkv1-0.9.11-43.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): https://download.sf.net/drumkv1/drumkv1-0.9.11-43.rncbc.suse.x86_84.rpm https://download.sf.net/drumkv1/drumkv1-lv2-0.9.11-43.rncbc.suse.x86_84.rpm https://download.sf.net/drumkv1/drumkv1-common-0.9.11-43.rncbc.suse.x86_84.… - AppImage [9] package (JACK stand-alone only): https://download.sf.net/drumkv1/drumkv1-0.9.11-50.x86_64.AppImage git repos: https://git.code.sf.net/p/drumkv1/code https://github.com/rncbc/drumkv1.git https://gitlab.com/rncbc/drumkv1.git https://bitbucket.org/rncbc/drumkv1.git **padthv1 - an old-school polyphonic additive synthesizer [4]** padthv1 0.9.11 (halloween'19) released! padthv1 is an old-school polyphonic additive synthesizer with stereo fx. padthv1 is based on the PADsynth algorithm by Paul Nasca, as a special variant of additive synthesis. LV2 URI: http://padthv1.sourceforge.net/lv2 website: http://padthv1.sourceforge.net https://padthv1.sourceforge.io project page: https://sourceforge.net/projects/padthv1 downloads: https://sourceforge.net/projects/padthv1/files - source tarball: https://download.sf.net/padthv1/padthv1-0.9.11.tar.gz - source package: https://download.sf.net/padthv1/padthv1-0.9.11-50.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): https://download.sf.net/padthv1/padthv1-0.9.11-50.rncbc.suse.x86_84.rpm https://download.sf.net/padthv1/padthv1-lv2-0.9.11-50.rncbc.suse.x86_84.rpm https://download.sf.net/padthv1/padthv1-common-0.9.11-50.rncbc.suse.x86_84.… - AppImage [9] package (JACK stand-alone only): https://download.sf.net/padthv1/padthv1-0.9.11-50.x86_64.AppImage git repos: https://git.code.sf.net/p/padthv1/code https://github.com/rncbc/padthv1.git https://gitlab.com/rncbc/padthv1.git https://bitbucket.org/rncbc/padthv1.git References: [1] synthv1 - an old-school polyphonic synthesizer https://synthv1.sourceforge.io http://synthv1.sourceforge.net/ [2] samplv1 - an old-school polyphonic sampler https://samplv1.sourceforge.io http://samplv1.sourceforge.net/ [3] drumkv1 - an old-school drum-kit sampler https://drumkv1.sourceforge.io http://drumkv1.sourceforge.net/ [4] padthv1 - an old-school polyphonic additive synthesizer https://padthv1.sourceforge.io http://padthv1.sourceforge.net/ [5] JACK Audio Connection Kit http://jackaudio.org/ [6] NSM, Non Session Management http://non.tuxfamily.org/nsm/ [7] ALSA, Advanced Linux Sound Architecture https://www.alsa-project.org/ [8] LV2, Audio Plugin Standard, the extensible successor of LADSPA http://lv2plug.in/ [9] AppImage, Linux apps that run anywhere https://appimage.org/ [10] Linux Audio consortium of libre software for audio-related work https://linuxaudio.org [11] GNU General Public License https://www.gnu.org/copyleft/gpl.html See also: https://www.rncbc.org/drupal/node/2049 Enjoy && Have (lots of) fun! -- rncbc aka. Rui Nuno Capela

5 years

100% Open Source Music

by Louigi Verona

Hey everyone! My music "career" started with mod music. Nope, not the music and fashion subculture from the late 1950s, but this mod music <https://en.wikipedia.org/wiki/Module_file>, when people used programs called "trackers" to produce stuff. It was either this or buying expensive hardware. Although people associate MOD music scene mostly with chiptunes, it was much more than that, and has its own pantheon of musical gods <https://modarchive.org/index.php?request=view_chart&query=topartists> who produced tracks ranging from synth pop <https://modarchive.org/index.php?request=view_by_moduleid&query=35280> to jazz <https://modarchive.org/index.php?request=view_by_moduleid&query=135135>, from orchestral <https://modarchive.org/index.php?request=view_by_moduleid&query=120901> to realistic folk instrumentals <https://modarchive.org/index.php?request=view_by_moduleid&query=155605>. Immersed in this music, I severed my link to the mainstream idea of songs with their standard verse/chorus, and endless drivel about relationships. That link has not been restored. My mind was opened to music that was so unlike anything I'd heard before that it felt a bit like walking through that door in the wall. (Is this H.G. Wells reference <https://www.encyclopedia.com/education/news-wires-white-papers-and-books/do…> too obscure? :) ) My heroes were Elwood, DRAX, Awesome. Who even knows these names? I once created a Wikipedia page for Elwood and it stayed up for many years, but recently I discovered that it was removed. And yet Elwood <https://modarchive.org/index.php?request=view_artist_modules&query=69004> is a legendary musician and producer in the MOD scene, who has inspired and awed several generations of fellow tracker musicians. Some names have gotten enough traction to stay on Wikipedia. Purple Motion <https://en.wikipedia.org/wiki/Jonne_Valtonen> is one clear example. Several producers, famous today, started out using trackers. Here is an incomplete list <https://en.wikipedia.org/wiki/Category:Tracker_musicians>. It mostly lacks artists who made their names in the tracking scene, but did not become notable outside of it. It's been a while since I went on a nostalgia tour, but due to my recent project of putting out an album of old tunes called "Only Slightly Embarrassing" <https://louigiverona.com/?page=projects&s=music&t=slightly_embarrassing>, I decided to cross further into the continent of "back in my days", which brought me straight to ModArchive <https://modarchive.org/>. Eventually, I was convinced that I should try making more tracked works, at the very least because my early works were so shitty that I felt I had to make up for that. Long story short, I realized that MOD music is the true Open Source Music. I mean, think about it. The most widely used software today is GPLed ( OpenMPT <https://openmpt.org/>). The modules you release are open source too, just like JavaScript. You open your XM or IT file and inspect how the tune was created. And you learn. And there is surely stuff to learn. Not all of it is even tracker-specific. People had no EQs, no compressors, no reverbs. And yet so much of tracked music sounds just incredible <https://modarchive.org/index.php?request=view_by_moduleid&query=134387>. How did they do it? It turns out, there are ways. Of course, all of that leads to a bit of self promotion. I would like to draw your attention to the two tunes that I've written in the past month with OpenMPT and which you can download and see how they were made. (Or don't. You can instead explore ModArchive's Top Favorites <https://modarchive.org/index.php?request=view_top_favourites>.) - Lid <https://modarchive.org/index.php?request=view_by_moduleid&query=186854> - Twizzy II <https://modarchive.org/index.php?request=view_by_moduleid&query=186855> You can just use an Online Player to listen to them in a browser, or you can use almost any modern player to play them. Audacious, VLC, for example. An interesting thing is that the MOD scene has its own cultural backdrop: it is primarily melodic oriented, and having melodies means a lot. If you don't like melodies, you go for trance. I am putting out minimal house, rominimal even. So, I am sure I will get little love. But for those of you who enjoy this style of music, I think you might like these. I am personally very happy with the sound and how both of these turned out. And yet - no EQing, no nothing. Just volume envelopes, volume levels and panning work. **a little proud** It's somehow interesting to me that this is open source minimal house music. Not a lot of those out there. p.s.: fuck my tracks, listen to this <https://modarchive.org/index.php?request=view_by_moduleid&query=34427> Louigi Verona https://louigiverona.com/

5 years

DrumGizmo 0.9.18 released

by Bent Bisballe Nyeng

DrumGizmo 0.9.18 Released! DrumGizmo is an open source, multichannel, multilayered, cross-platform drum plugin and stand-alone application. It enables you to compose drums in midi and mix them with a multichannel approach. It is comparable to that of mixing a real drumkit that has been recorded with a multimic setup. This release is primarily a bugfix release but a few new features also managed to sneak in. Highlights: * Sample selection algorithm now behaves a lot better when using a small sample set. * Error reporting has been drastically improved when loading drum-kits. * Sample normalization option has been added. As usual read the detailed description of all the new shiny features, including some audio samples [1]. And now, without further ado, go grab 0.9.18!!! [2] [1]: https://drumgizmo.org/wiki/doku.php?id=changelog:drumgizmo-0.9.18 [2]: http://www.drumgizmo.org/wiki/doku.php?id=getting_drumgizmo

5 years

It's the final (Sonoj) countdown! - live feed with chat - donations

by Sonoj Convention

The end is near! Fortunately only the end of our preparations. Only four days left until this year's Sonoj Convention. For the spontaneous among you there is still an opportunity to sign up and visit. Just enter your name on https://sonoj.org/register.html . Considering the many mails you've received so far, it can be assumed that you're currently in Antarctica and therefore can't actually participate. Therefore now for the last time (this year): Please help us finance our non-profit event by donating an amount of your choice. We accept bank transfers and PayPal: https://sonoj.org/donate.html And finally I would be happy to see you during the two days in our video stream. There will be a chat this year (it already exists), so you can ask questions and comment. The stream is on the Sonoj page, or here: https://streaming.media.ccc.de/sonoj2019 Best regards, Nils Sonoj Convention

5 years

BPM and key detection libraries

by Louigi Verona

Hey everyone! What are the bpm and key detection libraries people use for open source projects? And how good are they? Does anyone know what Mixxx is using? Louigi Verona https://louigiverona.com/

5 years

[ANN] The QStuff* Autumn'19 Release

by Rui Nuno Capela

Hello there! It's coming true: the old bunch of Qstuff*, QjackCtl [1], Qsynth [2], Qsampler [3], QXGEdit [4], QmidiCtl [5] and QmidiNet [6], are all catching up and aligning to the magical version 0.6.0 :) That's all pretty much and enough for now ;)... ** QjackCtl - JACK Audio Connection Kit Qt GUI Interface [1] ** QjackCtl 0.6.0 (autumn'19) is out! QjackCtl is a(n ageing yet modern, not so 'simple' anymore) Qt [7] application to control the JACK [8] sound server, for the Linux Audio [12] infrastructure. Website: https://qjackctl.sourceforge.io http://qjackctl.sourceforge.net Project page: https://sourceforge.net/projects/qjackctl Downloads: https://sourceforge.net/projects/qjackctl/files - source tarball: https://download.sf.net/qjackctl/qjackctl-0.6.0.tar.gz - source package: https://download.sf.net/qjackctl/qjackctl-0.6.0-39.rncbc.suse.src.rpm - binary package: https://download.sf.net/qjackctl/qjackctl-0.6.0-39.rncbc.suse.x86_64.rpm - AppImage [20] package: https://download.sf.net/qjackctl/qjackctl-0.6.0-39.x86_64.AppImage Git repos: https://git.code.sf.net/p/qjackctl/code https://github.com/rncbc/qjackctl.git https://gitlab.com/rncbc/qjackctl.git https://bitbucket.com/rncbc/qjackctl.git Change-log: - Graph: avoid self-connecting over their own ports when client nodes are selected as a whole group; also try to match port-types in a orderly fashion when connecting multiple selected ports. - Changing current JACK buffer size from Setup dialog (cf. Settings / Frames/Period) may now take effect just immediately ;) - An 'Apply' button as been added to the Setup dialog; ask whether to restart the JACK audio server, if any settings are changed. - Added alternate yet non-official CMake build option. - Fix HiDPI display screen effective support (Qt >= 5.6). - Command line arguments (--start, --preset=[label] and --active-patchbay=[path]) are passed and take effect on the current singleton/unique application instance, when enabled and already running. - System-tray icon context menu has been refactored to be exactly the same as the main-window context menu that is re-instantiated on demand. - Make sure compiler flags comply to c++11 as standard. ** Qsynth - A fluidsynth Qt GUI Interface [2] ** Qsynth 0.6.0 (autumn'19) is out! Qsynth is a FluidSynth [10] GUI front-end application written in C++ around the Qt framework [7] using Qt Designer. Website: https://qsynth.sourceforge.io http://qsynth.sourceforge.net Project page: https://sourceforge.net/projects/qsynth Downloads: https://sourceforge.net/projects/qsynth/files - source tarball: https://download.sf.net/qsynth/qsynth-0.6.0.tar.gz - source package: https://download.sf.net/qsynth/qsynth-0.6.0-19.rncbc.suse.src.rpm - binary package: https://download.sf.net/qsynth/qsynth-0.6.0-19.rncbc.suse.x86_64.rpm - AppImage [20] package: https://download.sf.net/qsynth/qsynth-0.6.0-19.x86_64.AppImage Git repos: https://git.code.sf.net/p/qsynth/code https://github.com/rncbc/qsynth.git https://gitlab.com/rncbc/qsynth.git https://bitbucket.com/rncbc/qsynth.git Change-log: - Updated the old yet non-official CMake build option. - Fix HiDPI display screen effective support (Qt >= 5.6). - System-tray icon context menu has been refactored to be exactly the same as the main-window context menu that is re-instantiated on demand. - Make sure compiler flags comply to c++11 as standard. ** Qsampler - A LinuxSampler Qt GUI Interface [3] ** Qsampler 0.6.0 (autumn'19) is out! Qsampler is a LinuxSampler [11] GUI front-end application written in C++ around the Qt framework [7] using Qt Designer. Website: https://qsampler.sourceforge.io http://qsampler.sourceforge.net Project page: https://sourceforge.net/projects/qsampler Downloads: https://sourceforge.net/projects/qsampler/files - source tarballs: https://download.sf.net/qsampler/qsampler-0.6.0.tar.gz - source package: https://download.sf.net/qsampler/qsampler-0.6.0-31.rncbc.suse.src.rpm - binary package: https://download.sf.net/qsampler/qsampler-0.6.0-31.rncbc.suse.x86_64.rpm - AppImage [20] package: https://download.sf.net/qsampler/qsampler-0.6.0-31.x86_64.AppImage Git repos: https://git.code.sf.net/p/qsampler/code https://github.com/rncbc/qsampler.git https://gitlab.com/rncbc/qsampler.git https://bitbucket.com/rncbc/qsampler.git Change-log: - Added alternate yet non-official CMake build option. - Fix HiDPI display screen effective support (Qt >= 5.6). - Make sure compiler flags comply to c++11 as standard. ** QXGEdit - A Qt XG Editor [4] ** QXGEdit 0.6.0 (autumn'19) is out! QXGEdit is a live XG instrument editor, specialized on editing MIDI System Exclusive files (.syx) for the Yamaha DB50XG [14] and thus probably a baseline for many other XG devices. Website: https://qxgedit.sourceforge.io http://qxgedit.sourceforge.net Project page: https://sourceforge.net/projects/qxgedit Downloads: https://sourceforge.net/projects/qxgedit/files - source tarball: https://download.sf.net/qxgedit/qxgedit-0.6.0.tar.gz - source package: https://download.sf.net/qxgedit/qxgedit-0.6.0-19.rncbc.suse.src.rpm - binary package: https://download.sf.net/qxgedit/qxgedit-0.6.0-19.rncbc.suse.x86_64.rpm - AppImage [20] package: https://download.sf.net/qxgedit/qxgedit-0.6.0-19.x86_64.AppImage Git repos: https://git.code.sf.net/p/qxgedit/code https://github.com/rncbc/qxgedit.git https://gitlab.com/rncbc/qxgedit.git https://bitbucket.com/rncbc/qxgedit.git Change-log: - Added alternate yet non-official CMake build option. - Fix HiDPI display screen effective support (Qt >= 5.6). - Refactored all singleton/unique application instance setup logic away from X11/Xcb hackery. - Make sure compiler flags comply to c++11 as standard. ** QmidiCtl - A MIDI Remote Controller via UDP/IP Multicast [5] ** QmidiCtl 0.6.0 (autumn'19) is out! QmidiCtl [5] is a MIDI remote controller application that sends MIDI data over the network, using UDP/IP multicast. Inspired by multimidicast [15] and designed to be compatible with ipMIDI [15] for Windows. QmidiCtl [5] was long ago designed for the Maemo [17] enabled handheld devices, namely the late Nokia N900 [18] and promoted to the Maemo Package [18] repositories. Nevertheless, QmidiCtl [5] may still be found effective as a regular desktop application and recently as an Android application as well. Website: https://qmidictl.sourceforge.io http://qmidictl.sourceforge.net Project page: https://sourceforge.net/projects/qmidictl Downloads: https://sourceforge.net/projects/qmidictl/files - source tarball: https://download.sf.net/qmidictl/qmidictl-0.6.0.tar.gz - source package: https://download.sf.net/qmidictl/qmidictl-0.6.0-19.rncbc.suse.src.rpm - binary package: https://download.sf.net/qmidictl/qmidictl-0.6.0-19.rncbc.suse.x86_64.rpm - AppImage [20] package: https://download.sf.net/qmidictl/qmidictl-0.6.0-19.x86_64.AppImage - Android packages: https://download.sf.net/qmidictl/qmidictl-0.6.0-19.armeabi-v7a.apk https://download.sf.net/qmidictl/qmidictl-0.6.0-19.arm64-v8a.apk https://play.google.com/store/apps/details?id=org.rncbc.qmidictl Git repos: https://git.code.sf.net/p/qmidictl/code https://github.com/rncbc/qmidictl.git https://gitlab.com/rncbc/qmidictl.git https://bitbucket.com/rncbc/qmidictl.git Change-log: - Populate automatically the network interface combo-box with detected interface names (after merge request by plcl aka. Pedro López-Cabanillas, while on qmidinet). - Complete rewrite of all the basic network interface code, while using the Qt5 framework as far as needed to support IPv4 and IPv6 seamless and interchangeably. - Added alternate yet non-official CMake build option. - Fix HiDPI display screen effective support (Qt >= 5.6). - Added left/right swipe gestures to navigate over mixer strip pages. - Make sure compiler flags comply to c++11 as standard. ** QmidiNet - A MIDI Network Gateway via UDP/IP Multicast [6] ** QmidiNet 0.6.0 (autumn'19) is out! QmidiNet is a MIDI network gateway application that sends and receives MIDI data (ALSA-MIDI [9] and JACK-MIDI [8]) over the network, using UDP/IP multicast. Inspired by multimidicast [15] and designed to be compatible with ipMIDI [16] for Windows. Website: https://qmidinet.sourceforge.io http://qmidinet.sourceforge.net Project page: https://sourceforge.net/projects/qmidinet Downloads: https://sourceforge.net/projects/qmidinet/files - source tarball: https://download.sf.net/qmidinet/qmidinet-0.6.0.tar.gz - source package: https://download.sf.net/qmidinet/qmidinet-0.6.0-19.rncbc.suse.src.rpm - binary package: https://download.sf.net/qmidinet/qmidinet-0.6.0-19.rncbc.suse.x86_64.rpm - AppImage [20] package: https://download.sf.net/qmidinet/qmidinet-0.6.0-19.x86_64.AppImage Git repos: https://git.code.sf.net/p/qmidinet/code https://github.com/rncbc/qmidinet.git https://gitlab.com/rncbc/qmidinet.git https://bitbucket.com/rncbc/qmidinet.git Change-log: - Populate automatically the network interface combo-box with detected interface names (after merge request by plcl aka. Pedro López-Cabanillas, thanks). - Complete rewrite of all the basic network interface code, while using the Qt5 framework as far as needed to support IPv4 and IPv6 seamless and interchangeably. - Added alternate yet non-official CMake build option. - Fix HiDPI display screen effective support (Qt >= 5.6). - Make sure compiler flags comply to c++11 as standard. License: All of the Qstuff* are free, open-source Linux Audio [11] software, distributed under the terms of the GNU General Public License (GPL) version 2 or later [12]. References: [1] QjackCtl - A JACK Audio Connection Kit Qt GUI Interface https://qjackctl.sourceforge.io [2] Qsynth - A fluidsynth Qt GUI Interface https://qsynth.sourceforge.io [3] Qsampler - A LinuxSampler Qt GUI Interface https://qsampler.sourceforge.io [4] QXGEdit - A Qt XG Editor https://qxgedit.sourceforge.io [5] QmidiCtl - A MIDI Remote Controller via UDP/IP Multicast https://qmidictl.sourceforge.io [6] QmidiNet - A MIDI Network Gateway via UDP/IP Multicast https://qmidinet.sourceforge.io [7] Qt framework, C++ class library and tools for cross-platform application and UI development https://qt.io/ [8] JACK Audio Connection Kit http://jackaudio.org [9] ALSA, Advanced Linux Sound Architecture https://www.alsa-project.org/ [10] FluidSynth - A SoundFont Synthesizer A real-time software synthesizer based on SoundFont 2 specifications https://www.fluidsynth.org [11] LinuxSampler - The Linux Sampler Project A modular, streaming capable, realtime audio sampler https://www.linuxsampler.org [12] Linux Audio consortium of libre software for audio-related work https://linuxaudio.org [13] GPL - GNU General Public License https://www.gnu.org/copyleft/gpl.html [14] Yamaha DB50XG http://www.soundonsound.com/sos/1996_articles/may96/yamahadb50xg.html [15] multimidicast - sends and receives MIDI from ALSA sequencers over network https://llg.cubic.org/tools/multimidicast [16] ipMIDI - MIDI over Ethernet ports - send MIDI over your LAN https://nerds.de [17] Maemo.org - Home of the Maemo community https://www.maemo.org [18] Maemo.org Wiki - Nokia N900 https://wiki.maemo.org/Nokia_N900 [19] Maemo.org - Downloads: QmidiCtl https://maemo.org/downloads/product/Maemo5/qmidictl [20] AppImage, Linux apps that run anywhere https://appimage.org/ See also: https://www.rncbc.org/drupal/node/2045 Enjoy && Have fun! -- rncbc aka Rui Nuno Capela

5 years, 1 month

[ANN] Qtractor 0.9.10 - An Autumn'19 Release

by Rui Nuno Capela

Wholly greetings, Without any further delay, here it goes: Qtractor 0.9.10 (autumn'19) is now released! The shortest and maybe TL;DR change-log for this northern Autumn'19 release goes like this: - Fixed the potential crash-effect in switching MIDI output buses on tracks that are set to show audio output monitoring meters. - Fixed initial session tempo override when importing a standard MIDI file (as reported on issue #230). - An alternate time-signature/meter option is being served to the MIDI clip editor (aka. piano-roll) and allowing for some poly-rythm/meter scenarios on a per MIDI clip basis. - Fixed MIDI "overdub" recording on offset clips. - MIDI bank and program settings now propagating to all MIDI track's clips resp. - Fixed MIDI file format default setting other than SMF Format 0. - Escape key may now be used to reset time and tempo/time-sgnature spin-box controls. - Play-head time and tempo/time-signature controls are now featured in MIDI clip editor toolbars (aka. piano-roll); time display format is also separated from the tracks main application view and defaults to BBT as being most convenient. - All items in the MIDI clip editor's event list are now enabled, selectable and editable, no matter the filter settings for the event views. - Added alternate yet non-official CMake build option. - Improved MIDI clip editor (aka. piano-roll) position and size persistence across session state. - Fix HiDPI display screen effective support (Qt >= 5.6). - Mixer, Connections and MIDI clip editor top-level windows shall have no parent, unless when set as always-on-top tool windows. (REGRESSION) - Make sure compiler flags comply to c++11 as standard. Description: 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.org https://qtractor.sourceforge.io http://qtractor.sourceforge.net Project page: https://sourceforge.net/projects/qtractor Downloads: https://sourceforge.net/projects/qtractor/files - source tarball: https://download.sf.net/qtractor/qtractor-0.9.10.tar.gz - source package (openSUSE Tubleweed): https://download.sf.net/qtractor/qtractor-0.9.10-45.rncbc.suse.src.rpm - binary package (openSUSE Tubleweed): https://download.sf.net/qtractor/qtractor-0.9.10-45.rncbc.suse.x86_64.rpm - AppImage [7] packages: https://download.sf.net/qtractor/qtractor-0.9.10-15.x86_64.AppImage Git repos: https://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!): https://sourceforge.net/p/qtractor/wiki/ - static rendering: http://qtractor.org/doc http://qtractor.sourceforge.net/doc https://qtractor.sourceforge.io/doc - user manual & how-to's: https://download.sf.net/qtractor/qtractor-manual-and-howtos.epub https://download.sf.net/qtractor/qtractor-manual-and-howtos.pdf 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. References: [1] Qtractor - An audio/MIDI multi-track sequencer http://qtractor.org https://qtractor.sourceforge.io http://qtractor.sourceforge.net [2] Qt framework, C++ class library and tools for cross-platform application and UI development https://qt.io/ [3] JACK Audio Connection Kit http://jackaudio.org [4] ALSA, Advanced Linux Sound Architecture https://www.alsa-project.org/ [5] Linux Audio consortium of libre software for audio-related work https://linuxaudio.org [6] GPL - GNU General Public License https://www.gnu.org/copyleft/gpl.html [7] AppImage, Linux apps that run anywhere https://appimage.org/ See also: https://www.rncbc.org/drupal/node/2041 Enjoy && Share the fun. -- rncbc aka Rui Nuno Capela

5 years, 1 month

Xputty - damn tiny abstraction Layer to create X11 window/widgets with cairo surfaces

by Hermann Meyer

For creating LV2 UI's I end up more and more writing the same code, so I decided to wrote a Layer for it. It's supposed to create, manage, draw, and destroy X11 widgets with a cairo surface to draw. Additional to subscribe to and handle events. I decided to put it in the Public Domain, so everyone could do what ever he /she want's with it. The repository contain a example folder showing some of the features supported by the layer. It's a tiny, but powerful abstraction of the X11 low level API to easier the process to create nice GUI's. Documentation is included in the source code, it's a single header and a single c file. All together just 654 lines, were most lines taken by documentation. So, here you go: https://github.com/brummer10/Xputty

5 years, 1 month

Click-free fade-in algorithm for synths?

by Johannes Lorenz

A note-on event can lead to clicks in synths, which is often fixed by a fade-in algorithm. If the attack rate for a synth's signal is 0, the synth shall not click, and still fade in as fast as possible. What is the best algorithm for fading in a signal, that scales also with small buffersizes, like 32 samples per buffer (at 44100 samples/s)? For example, in zynaddsubfx, we count the ascending zero crossings and calculate the fade-in length upon it [1]. Then, an S-curve of that length is multiplied with the signal. Counting zero crossings prevents clicking on lower notes, and it makes higher notes more punchy. That algorithm works very well for a buffersize of 256 samples (at 44100 samples/s), but it fails at 32 samples (since the zero crossings of 32 samples are often not representive). Any papers, or experience with other synths? We currently need a good solution for (at least) zynaddsubfx and the triple oscillator in LMMS. Links: [1] https://github.com/zynaddsubfx/zynaddsubfx/blob/4e36e765f677dbc689461889e50…

5 years, 1 month

Berlin Linux Audio meeting @ c-base 2019-10-08

by Daniel Swärd

Hi all. Tomorrow it's the scheduled meeting at c-base again. I don't know if I'll make it (I've stayed home from work today not feeling great), but maybe Louigi or Robin can gather people? Cheers /Daniel

5 years, 1 month

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Linux-audio-dev October 2019