Linux-audio-dev November 2020

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12 participants
16 discussions

[ANN] Vee One Suite 0.9.13 - A QStuff* Spring'20 Release batch #2

by Rui Nuno Capela

Greetings once more, 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 all being released now for the second 'QStuff*' Spring'20 batch of the (quarantine) season. All still available in dual form deliveries: - 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]. Not much of a ravishing change-log, just on the brink of utterly boring maintenance stuff: - Always keep the current sample loop-cycle on note-off, while entering a DCA Release stage. (applies to samplv1 [2] only) - Maximum pitch-bend range has been expanded to 0..400%, allegedly to support some PME driven instruments. - Make man page compression reproducible (after request by Jelle van der Waa, thanks). - Fixed crash when showing the tooltip of a negative note number that results from dragging over and beyond the left edge of the virtual piano keyboard. - Remove -v (verbose) flag from 'strip' post-link command. - Fixed CMake build by adding missing Custom Color Theme (palette) form file (.ui). - Bumped copyright headers into the New Year (2020). 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 0.9.13 (spring'20) 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/synthv1-0.9.13.tar.gz - source package: https://download.sf.net/synthv1/synthv1-0.9.13-53.rncbc.suse.src.rpm - binary packages (openSUSE Tumbleweed): https://download.sf.net/synthv1/synthv1-0.9.13-53.rncbc.suse.x86_84.rpm https://download.sf.net/synthv1/synthv1-lv2-0.9.13-53.rncbc.suse.x86_84.rpm - AppImage [9] package (JACK stand-alone only): https://download.sf.net/synthv1/synthv1-0.9.13-53.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 0.9.13 (spring'20) 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/samplv1-0.9.13.tar.gz - source package: https://download.sf.net/samplv1/samplv1-0.9.13-53.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): https://download.sf.net/samplv1/samplv1-0.9.13-53.rncbc.suse.x86_84.rpm https://download.sf.net/samplv1/samplv1-lv2-0.9.13-53.rncbc.suse.x86_84.rpm - AppImage [9] package (JACK stand-alone only): https://download.sf.net/samplv1/samplv1-0.9.13-53.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 0.9.13 (spring'20) 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/drumkv1-0.9.13.tar.gz - source package: https://download.sf.net/drumkv1/drumkv1-0.9.13-43.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): https://download.sf.net/drumkv1/drumkv1-0.9.13-43.rncbc.suse.x86_84.rpm https://download.sf.net/drumkv1/drumkv1-lv2-0.9.13-43.rncbc.suse.x86_84.rpm - AppImage [9] package (JACK stand-alone only): https://download.sf.net/drumkv1/drumkv1-0.9.13-53.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 0.9.13 (spring'20) 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/padthv1-0.9.13.tar.gz - source package: https://download.sf.net/padthv1/padthv1-0.9.13-53.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): https://download.sf.net/padthv1/padthv1-0.9.13-53.rncbc.suse.x86_84.rpm https://download.sf.net/padthv1/padthv1-lv2-0.9.13-53.rncbc.suse.x86_84.rpm - AppImage [9] package (JACK stand-alone only): https://download.sf.net/padthv1/padthv1-0.9.13-53.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 https://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/2076 Enjoy && Stay safe! -- rncbc aka. Rui Nuno Capela rncbc(a)rncbc.org

3 years, 5 months

A short technote on digital state-variable filters

by Fons Adriaensen

Hello all, Some people have asked me to provide a bit more documentation on the state-variable filters I used in zita-eq1 and zita-jacktools. So I've written a short technical note on this. You can find it at <http://kokkinizita.linuxaudio.org/papers/digsvfilt.pdf> Ciao, -- FA

4 years, 1 month

Re: [LAD] [LAU] [LAA] Mamba - Virtual Midi keyboard for Jack Audio Connection Kit release 1.8

by Hermann Meyer

Am 24.11.20 um 11:40 schrieb David Kastrup: > Hermann Meyer <brummer-(a)web.de> writes: > >> Mamba release v1.9 is out >> >> Mamba is a Virtual MIDI keyboard with some extended, unique features. >> >> This is a quick fix release as I've forgotten to implement jack MIDI >> input forwarding to ALSA MIDI output. > Stupid question: I see you implemented different national keyboard > layouts that basically define a mapping from characters to physical key > positions. I think that raw X11 key events might actually encode key > positions (or numbers based on a particular arrangement of keys) but > maybe they are not easily available at the layer your key events arrive. > > But the actual question is a different one: have you considered offering > a chromatic button accordion arrangement "on top" of that national > remapping? > > Basically it would mean that a chromatic scale is encoded as > > zsexdrcftvgybhunjimko,lp.;[/'] for C system (with a qwerty keyboard, > starting at C) and > qazwsxedcrfvtgbyhnujmik,ol.p;/ for B system (again, starting at C). > > Finnish G system uses the same scale as C system apart from starting > with C♯ rather than C in the first row. I can provide images if > necessary (there are some at > <https://en.wikipedia.org/wiki/Chromatic_button_accordion>). > > Modern CBA keyboards tend to have 5 rows but the inner 2 rows are > repeats for making transposition and chord fingerings easier and > basically every player can get along without them at least when doing > note entry. So whether to offer more than 3 rows depends on whether > there is an actual use for the numbers and function keys. > > The main advantage for CBA players of course is easier entry. The main > advantage for everyone else would be access to more notes at the same > time. > That's why the custom Keymap editor is implemented, so you could create the key map which best suite you. The given implemented key maps been just the essentials.

4 years, 2 months

[LAU] [LAA] Mamba - Virtual Midi keyboard for Jack Audio Connection Kit release 1.8

by Hermann Meyer

Hi Mamba release v1.9 is out Mamba is a Virtual MIDI keyboard with some extended, unique features. This is a quick fix release as I've forgotten to implement jack MIDI input forwarding to ALSA MIDI output. Also it implement proper French translation thanks to Olivier Humbert. Mamba is released under the BSD Zero Clause License license The GUI is build on libxputty - A damn tiny abstraction Layer to create X11 window/widgets with cairo surfaces https://github.com/brummer10/libxputty To build Mamba from source, the following dependencies must be meat. * libfluidsynth-dev * libc6-dev * libsmf-dev * libcairo2-dev * libx11-dev * liblo-dev * libsigc++-2.0-dev * libjack-(jackd2)-dev * libasound2-dev So, here is the project page: https://github.com/brummer10/Mamba and here you'll find the last release: https://github.com/brummer10/Mamba/releases/tag/v1.9 regards hermann

4 years, 2 months

The mysterious revival of www.nekosynth.co.uk

by Gordonjcp

Hi folks, Some of you may recall that about ten years ago I wrote some LADSPA and DSSI plugins and hosted them on a Trac install on www.nekosynth.co.uk until I moved away from doing music with computers, and gradually the site became abandoned and the domain lapsed. Someone pointed out that the site is back up on https://www.nekosynth.co.uk with a load of content downloaded from archive.org and indeed there it is - loads of it although the audio examples are missing. This is seriously weird. Like, really, really weird. It wasn't one of you lot, was it? I'd love to try and get in touch with whoever put considerable effort into setting it up. If anyone knows anything I'd appreciate the information. -- Gordonjcp

4 years, 2 months

Fluida.lv2 - Fluidsynth a LV2 plugin

by Hermann Meyer

Hi This is the initial release of Fluida.lv2 Fluida is a wrapper around Fluidsynth https://github.com/FluidSynth/fluidsynth allowing to load and control Fluidsynth as LV2 plugin within your DAW. Fluida is knowing to run well with lv2vst https://github.com/x42/lv2vst wrapped as VST2 for the case your DAW didn't support the LV2 standard. project page is here: https://github.com/brummer10/Fluida.lv2 initial release is here: https://github.com/brummer10/Fluida.lv2/releases/tag/v0.5 regards hermann

4 years, 2 months

DrumGizmo 0.9.19 released

by Bent Bisballe Nyeng

DrumGizmo 0.9.19 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 a feature release with some rather interesting new features in it. Highlights: * Default midimaps now read from drumkit file so no explicit loading of midimap are needed for kits that provide these. * Add OSX retina display UI scaling. * Sample selection default values improved * UI rendering speed improvements * New powermap feature, to make it easier to get a good natural feeling when playing a midi-drumkit. * Improved dgvalidater tool to include a lot more validation checks. * Add gettext support to plugin UI with French translation. * Per instrument voice limit feature to enable playing very fast with low latency without the engine dropping out. * Resampling quality (and thereby cpu usage) can now be controlled. And a lot of bugfixes. As usual read the detailed description of all the new shiny features, see the detailed changelog: [1]. And now, without further ado, go grab 0.9.19!!! [2] [1]: https://drumgizmo.org/wiki/doku.php?id=changelog:drumgizmo-0.9.19 [2]: https://drumgizmo.org/wiki/doku.php?id=getting_drumgizmo

4 years, 3 months

Alpha release of zita-avc1

by Fons Adriaensen

Zita-avc1 0.1.0 ---------------- 'Analog' style vocoder, inspired by the famous EMS vocoders from the 1970's. Standalone app, using Jack for audio and MIDI I/O. Zita-avc1 uses two sets of 24, 6th order bandpass filters to analyse the voice input and to impose the same spectral envelope on another signal. The filters span a frequency range from approx. 70 Hz to 14 kHz. Filter spacing is 1/4 octave over most of this range. Voiced / Unvoiced detection is based on the power ratio of the high vs low frequency bands. A sawtooth oscillator and a noise source are provided, but normally you should use external signals, at least for the voiced excitation. Bright strings-like signals seem to work well, but anything with a dense 'pinkish' spectrum should do. The voice input should be a clean, full-bandwidth voice signal, speaking or singing. This is very much an alpha version, released to invite comments and suggestions. Future developments may include: - Pitch tracking. - Filter band matrix. - Store and recall formants with MIDI control. - ... See the README for a quick guide. Available at the usual place: <http://kokkinizita.linuxaudio.org/linuxaudio/downloads/zita-avc1-0.1.0.tar.…> Ciao, -- FA

4 years, 3 months

[LAU] [LAA] Mamba - Virtual Midi keyboard for Jack Audio Connection Kit release 1.8

by Hermann Meyer

Hi Mamba release v1.8 is out Mamba is a Virtual MIDI keyboard with some extended, unique features. Virtual MIDI Keyboard Mamba comes with some predefined key-maps, qwertz, qwerty, azerty(fr) and azerty(be), but you could define your own with the included Key-map Editor as well. Beside the computer keyboard and mouse, Mamba supports jack-interconnect-ALSA MIDI I/O. Every channel use it's own Color to display the played Notes per channel. Jack and ALSA connections could be managed within the connection menu. 16 Channel Live MIDI Looper: To record a loop, press "Play" and then to start recording press "Record". To stop recording press record again. Playback will start immediately. The first recorded channel will become the Master channel. This one set the time frame for all later recorded loops. For the Master Channel the recording time will be stretched/clipped to match the next full beat time point. To record a new loop, switch to a other channel, select your instrument and press "Record" again to start recording. The later recorded loops will be synced to the master loop. When the recording time extend the absolute Master loop time record will be switched off. Absolute time is not bound to the loop point, so you could record loops crossing it. You could as well stop recording by press "Record" again before the time expires. Each Channel could be cleared and re-recorded separate at any time. even when you press "Record" on a already recorded channel, it will be cleared before recording starts. You could record the connected input device or play the Keyboard itself. MIDI File player You could select a MIDI file with the File Selector, or just drag'n drop it in from your Filemanager. It will be loaded in the play buffer of the first channel, regardless how much channels it use. You could use then channel 2 - 16 to record your own playing into it. To play along with it you could use any channel. A loaded file will become the Master channel for the looper. To save your work just go to Menu -> "File" -> "Save MIDI file as", select the path and enter a file name. If you don't give the usual file extension Mamba will add the extension .midi befor save it. Fluidsynth When you load a Sound-font via the Menu -> "Fluidsynth" -> "Load Sound-font", or just drag'n drop it in from your Filemanager Mamba will start the Fluidsynth engine and do the needed connections so that you could just play along. Menu -> "Fluidsynth" -> "Settings" will pop-up a new Window were you could select the Instrument for the channel and do settings for Fluisynth Reverb and Chorus. All your Settings will be saved on exit, so on next start you could just play along. Mamba is released under the BSD Zero Clause License license The GUI is build on libxputty - A damn tiny abstraction Layer to create X11 window/widgets with cairo surfaces https://github.com/brummer10/libxputty To build Mamba from source, the following dependencies must be meat. * libfluidsynth-dev * libc6-dev * libsmf-dev * libcairo2-dev * libx11-dev * liblo-dev * libsigc++-2.0-dev * libjack-(jackd2)-dev * libasound2-dev So, here is the project page: https://github.com/brummer10/Mamba and here you'll find the last release: https://github.com/brummer10/Mamba/releases/tag/v1.8 regards hermann

4 years, 3 months

Linux audio Conference next Wednesday

by Thibaud Keller

Dear All, This year's Linux Audio Conference will start next Wednesday at 4:30 pm CET. For this 18th edition, the conference will take place remotely in this Big Blue Button room: https://visio.octopuce.fr/b/thi-wau-dt7-nxk Please find the program and the complete Artwork Playlist here: https://lac2020.sciencesconf.org/program https://tube.aquilenet.fr/videos/watch/playlist/3dc308f2-c8a6-4d28-b19b-4b1… The rest of the playlist will be updated with all recorded presentations during the event: https://tube.aquilenet.fr/video-channels/lac2020/video-playlists If you were hoping to do some sight-seeing when visiting us in Bordeaux, the following links will take you on a remote tour - which hopefully will give you some ideas for vacations after international travel resumes ! We are looking forward to seeing all of you and to all the verry promising presentations ! 'til Wednesday The LAC 2020 team *Vidéos* The city 1/ *https://www.youtube.com/watch?v=x3uJj0zVzm0* <https://www.youtube.com/watch?v=x3uJj0zVzm0> 2/ *https://www.youtube.com/watch?v=0bSDhaDzrqY* <https://www.youtube.com/watch?v=0bSDhaDzrqY> 3/ *https://www.youtube.com/watch?v=BiNl1IoshyA* <https://www.youtube.com/watch?v=BiNl1IoshyA> 4/ *https://www.youtube.com/watch?v=hcgj8uYwvSE* <https://www.youtube.com/watch?v=hcgj8uYwvSE> Musée d’Aquitaine : *https://www.youtube.com/watch?v=OcUJZXBV6w0* <https://www.youtube.com/watch?v=OcUJZXBV6w0> Museum d’histoire naturelle : *https://www.youtube.com/watch?v=v930TfV8eUA* <https://www.youtube.com/watch?v=v930TfV8eUA> Grand théâtre 1/ *https://www.youtube.com/watch?v=WzDR5F1lSTU* <https://www.youtube.com/watch?v=WzDR5F1lSTU> 2/ *https://www.youtube.com/watch?v=JFpS0JxWsp8* <https://www.youtube.com/watch?v=JFpS0JxWsp8> *360° Images* Palais Gallien *http://www.aquitaineonline.com/vision360/Palais-Gallien-Bordeaux.html* <http://www.aquitaineonline.com/vision360/Palais-Gallien-Bordeaux.html> Colonne des Girondins *http://www.aquitaineonline.com/vision360/Patrimoine-Bordeaux-Colonne-des-Girondins.html* <http://www.aquitaineonline.com/vision360/Patrimoine-Bordeaux-Colonne-des-Gi…> Pont Chaban – Port de la Lune *http://www.aquitaineonline.com/vision360/Pont-Jacques-Chaban-Delmas-Bordeaux-Port-de-la-Lune.html* <http://www.aquitaineonline.com/vision360/Pont-Jacques-Chaban-Delmas-Bordeau…> Place de la Bourse – Miroir d’eau 1/ *https://www.360images.fr/360/bordeaux/bourse.html?ml=1&iframe=1* <https://www.360images.fr/360/bordeaux/bourse.html?ml=1&iframe=1> 2/ *https://www.360images.fr/360/bordeaux/miroir_night.html?ml=1&iframe=1* <https://www.360images.fr/360/bordeaux/miroir_night.html?ml=1&iframe=1>

4 years, 3 months

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Linux-audio-dev November 2020