Linux-audio-dev June 2024

linux-audio-dev@lists.linuxaudio.org

12 participants
14 discussions

by Will Godfrey

I've seen quite a few adverts for MIDI2 keyboard controllers now, so has anyone tried interfacing with this yet? If so, what sort of problems have you had to resolve. -- Will J Godfrey {apparently now an 'elderly'}

1 month

SpectMorph 1.0.0-beta1

by Stefan Westerfeld

SpectMorph 1.0.0-beta1 has been released. The main changes are: - WavSource: added formant preserving algorithms for repitching vocals - KeyTrack: new operator to combine instruments by note range - Envelope: new operator to generate arbitrary modulation envelopes - LFO: support arbitrary user defined curves There is a tutorial on YouTube for the new features: - https://www.youtube.com/embed/mwVUsuOTcN0 Feedback for any issues you might experience with the beta version is appreciated. What is SpectMorph? ------------------- SpectMorph is a free software project which allows to analyze samples of musical instruments, and to combine them (morphing). It can be used to construct hybrid sounds, for instance a sound between a trumpet and a flute; or smooth transitions, for instance a sound that starts as a trumpet and then gradually changes to a flute. SpectMorph ships with many ready-to-use instruments which can be combined using morphing. SpectMorph is implemented in C++ and licensed under the GNU LGPL version 2.1 or later Integrating SpectMorph into your Work ------------------------------------- SpectMorph is currently available for Linux, Windows and macOS (Intel and Apple Silicon), with CLAP/LV2/VST plugins. Under Linux, there is also JACK Support. Links: ------ Website: https://www.spectmorph.org Download: https://www.spectmorph.org/downloads There are many audio demos on the website, which demonstrate morphing between instruments. List of Changes in SpectMorph 1.0.0-beta1: ------------------------------------------ #### New Features * WavSource: support two formant preserving algorithms for repitching vocals. * New operators: - KeyTrack - can be used to combine instruments by note range. - Envelope - to generate arbitary modulation envelopes. * User defined curve editor for KeyTrack, Envelope and LFO. * Add presets using the new operators: - KeyTrack Choir Ah/Oh - StringBrass Fusion * JACK CC values are now interpreted per channel (allows polyphonic modulation). * Support double click to reset properties to default value. #### Fixes * Apply midi channel bend to new voices. * Make portamento affect filter cutoff key tracking. * Fix problems with WavSource paths stored by LV2 plugin (make Ardour archives work). * Fix getting the initial click events / focus plugin UI on macOS under Bitwig. * Fix invalid access to past last vector element (#24). * Make PandaResampler work without problems in ASAN builds. * Refactor leak debugger to fix possible crashes caused by global destructors. * Do not ship sample data in "1 Instrument WavSource" preset. #### Internals: Improvements * Generate and store spectral envelopes in each AudioBlock for formant correction. * Improve the strategy for portamento synthesis (more accurate and less CPU usage). * Propagate portamento frequency to sources. * Randomize start phase per default to improve "Harmonic Resynthesis" quality. * JACK: use two audio outputs to be able to implement stereo support later on. * Add fast vectorizable log2 approximation (based on Tims version from Anklang). * Phases in LiveDecoder, IFFTSynth: change from float to uint for performance reasons. * Various minor performance optimizations. * Minor LV2 meta data updates (port groups, avoid port resizing extension). * Use newer compilers: g++-14 for windows, g++-13 for static linux plugins. * Support automatically downloading instruments from configure. * Avoid using std::mutex in hard RT code. #### Internals: Minor Changes * Refactoring: - Deduplicate morphing code from MorphGrid and MorphLinear. - Use shared pointers for GenericIn/GenericOut classes (RAII). - Get rid of `sm_clamp` / `sm_bound` (-> std::clamp). * Improve CI support (use debug-cxx, asan, ubsan, test static build, avoid fftw planning). * Add post install test which tests audio output for all presets after installation. * Validate LV2 feature arrays. * Support user defined scripts in testmidisynth test. * Improve error messages for preset loader. * Build cleanups: remove libbse code, simplify Qt build (remove smsampleedit). * Update CLAP version to 1.2.1. -- Stefan Westerfeld, http://space.twc.de/~stefan

10 months, 2 weeks

[Announce] FFADO version 2.4.9

by Jonathan Woithe

The FFADO project (https://ffado.org) announces the availability of FFADO version 2.4.9. This is a maintenance release which contains minor improvements. This is a source-only release that can be downloaded from https://ffado.org/files/libffado-2.4.9.tgz Changes since FFADO 2.4.8: * Support compilation against musl libc. Thanks to Alyssa Ross. * Remove build-time checks for utilities that are not used (pyuic). * Install the ffado-mixer appdata file only if ffado-mixer has been built. Thanks to Jan Tojnar for the suggestion. * Add a DATADIR option to scons and use it in line with GNU conventions. Thanks to Jan Tojnar for the suggestion and the patch. * Update the AppStream document with more complete information and in line with current best practice (Jan Tojnar). * Rename XDG files to match modern standards (Jan Tojnar). * Install XDG files manually to simplify the build script and avoid depending on xdg-utils (Jan Tojnar). Thanks to those who have helped with this release, including Alyssa Ross and Jan Tojnar. Notes for packagers: * A consequence of the DATADIR support is that the default MANDIR has shifted from `${PREFIX}/man/` to `${PREFIX}/share/man/`. The latter is arguably more common, but if the original path must remain in use it is still possible to manually set MANDIR at build time. * The presence of the DATADIR option may allow simplification of build commands or require minor build option adjustments depending on how FFADO is built. * Aside from the manpage location, the introduction of DATADIR is not expected to change the path of any other installed files by default. Jonathan Woithe (on behalf of ffado.org)

10 months, 2 weeks

[ANN] Qtractor 1.0.0 - An Unthinkable Release batch #3

by Rui Nuno Capela

Hi all, it's finally here, Qtractor 1.0.0 (the unthinkable) is released! Change-log: - Making up the unthinkable (aka. v1.0.0) - General plugin scan/cache optimization. - Improved legibility to all clip title labels (color contrast). - Save/load the correct order and labeling of audio/MIDI send/return pseudo-plugin inserts. - Fixed a display and port-name filtering issue that was present ever since on the Connections widget. 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: https://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-1.0.0.tar.gz - source package (openSUSE Tubleweed): https://download.sf.net/qtractor/qtractor-1.0.0-1.1.rncbc.suse.src.rpm - binary package (openSUSE Tubleweed): https://download.sf.net/qtractor/qtractor-1.0.0-1.1.rncbc.suse.x86_64.rpm - AppImage [7] package: https://download.sf.net/qtractor/qtractor-1.0.0-1.1.x86_64.AppImage - Flatpak [8] package (thanks Hubert Figuière): https://flathub.org/apps/details/org.rncbc.qtractor Git repos: https://git.code.sf.net/p/qtractor/code https://github.com/rncbc/qtractor.git https://gitlab.com/rncbc/qtractor.git https://codeberg.org/rncbc/qtractor.git Wiki: https://sourceforge.net/p/qtractor/wiki/ - static rendering: https://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 https://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 https://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/ [8] Flatpak, next-generation technology for building and distributing desktop applications on Linux https://flatpak.org/ See also: https://www.rncbc.org/drupal/node/2601 Enjoy && Keep having (lots of) fun! - - - rncbc aka Rui Nuno Capela

10 months, 3 weeks

[ANN] Vee One Suite 1.0.0 - An Unthinkable Release batch #2

by Rui Nuno Capela

Hi everyone, a second time, The 'Vee One Suite' of the 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; * padthv1 [4] a polyphonic additive synthesizer. Are here released as the second batch of the so called QStuff* overdue party... All still delivered in dual form, as usual: - a pure stand-alone JACK client with JACK-session [5], NSM (Non/New Session Management [6]) and both JACK MIDI and ALSA MIDI [7] input support; - a LV2 instrument plug-in [8]. Change-log: - Making up the unthinkable (aka. v1.0.0) 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 1.0.0 (the unthinkable) is out! 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/synthv1-1.0.0.tar.gz - source package: https://download.sf.net/synthv1/synthv1-1.0.0-1.1.rncbc.suse.src.rpm - binary packages (openSUSE Tumbleweed): https://download.sf.net/synthv1/synthv1-jack-1.0.0-1.1.rncbc.suse.x86_84.rpm https://download.sf.net/synthv1/synthv1-lv2-1.0.0-1.1.rncbc.suse.x86_84.rpm - AppImage [9] package (JACK stand-alone only): https://download.sf.net/synthv1/synthv1-jack-1.0.0-1.1.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://codeberg.org/rncbc/synthv1.git **samplv1 - an old-school polyphonic sampler [2]** samplv1 1.0.0 (the unthinkable) is out! 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/samplv1-1.0.0.tar.gz - source package: https://download.sf.net/samplv1/samplv1-1.0.0-1.1.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): https://download.sf.net/samplv1/samplv1-jack-1.0.0-1.1.rncbc.suse.x86_84.rpm https://download.sf.net/samplv1/samplv1-lv2-1.0.0-1.1.rncbc.suse.x86_84.rpm - AppImage [9] package (JACK stand-alone only): https://download.sf.net/samplv1/samplv1-jack-1.0.0-1.1.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://codeberg.org/rncbc/samplv1.git **drumkv1 - an old-school drum-kit sampler [3]** drumkv1 1.0.0 (the unthinkable) is out! 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/drumkv1-1.0.0.tar.gz - source package: https://download.sf.net/drumkv1/drumkv1-1.0.0-1.1.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): https://download.sf.net/drumkv1/drumkv1-jack-1.0.0-1.1.rncbc.suse.x86_84.rpm https://download.sf.net/drumkv1/drumkv1-lv2-1.0.0-1.1.rncbc.suse.x86_84.rpm - AppImage [9] package (JACK stand-alone only): https://download.sf.net/drumkv1/drumkv1-jack-1.0.0-1.1.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://codeberg.org/rncbc/drumkv1.git **padthv1 - an old-school polyphonic additive synthesizer [4]** padthv1 1.0.0 (the unthinkable) is out! 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/padthv1-1.0.0.tar.gz - source package: https://download.sf.net/padthv1/padthv1-1.0.0-1.1.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): https://download.sf.net/padthv1/padthv1-jack-1.0.0-1.1.rncbc.suse.x86_84.rpm https://download.sf.net/padthv1/padthv1-lv2-1.0.0-1.1.rncbc.suse.x86_84.rpm - AppImage [9] package (JACK stand-alone only): https://download.sf.net/padthv1/padthv1-jack-1.0.0-1.1.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://codeberg.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 (legacy) http://non.tuxfamily.org/nsm/ New Session Manager https://new-session-manager.jackaudio.org/ [7] ALSA, Advanced Linux Sound Architecture https://www.alsa-project.org/ [8] LV2, Audio Plugin Standard, the extensible successor of LADSPA https://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/2600 Enjoy the lot! - - - rncbc aka. Rui Nuno Capela

10 months, 3 weeks

International Faust Conference 2024 (IFC-24), Turin (Italy), Nov. 21-22, 2024

by Stéphane Letz

Hi everyone, Just a friendly reminder that the deadline for submitting a paper to the 2024 International Faust Conference (IFC-24) is July 12th, 2024 ;), see https://ifc24.soundmit.com/en Best, Stéphane

10 months, 3 weeks

Faust 2.74.6 prerelease to test

by Stéphane Letz

Here: https://github.com/grame-cncm/faust/releases/tag/2.74.6 Feedback welcome ! Stéphane

10 months, 3 weeks

Re: Linux Audio Conference (is back) 2025

by Fons Adriaensen

On Sun, Jun 16, 2024 at 11:05:44AM +0200, Jörn Nettingsmeier wrote: > Some experiences I've had with Belgian beers were more akin to memory > barriers... stupid me was enjoying Duvel without parsing the metadata (the > taste is so light and summer-y), matching my friends' cadence (who were > drinking pilsener). One of the few evenings where I don't remember how I got > home. Duvel, at 8.5%, isn't even the strongest, some go up to 12%. It played a role in my life as well... My first ever job (long ago) was as a sound engineer for Belgian radio and TV. One evening we were recording Schubert's piano trio op.99 at the famous Flagey studio 4. <https://en.wikipedia.org/wiki/Flagey_Building#Recording_studios> The producer, who also was a music teacher, had engaged one his students to turn the pages for the piano player. After the recording he asked me if I could bring her home, as that was on my way back to Antwerp. So we ended up in the small village of Breendonk which has no claims to fame except for being where the Duvel is brewed. We had some Duvels at the small cafe opposite the brewery and ended up waggling to her parents' home. A few days later we saw each other again, and became 'an item' that lasted for almost ten years. Cheers, -- FA

10 months, 4 weeks

Linux Audio Conference (is back) 2025

by Stéphane Letz

Hi everyone, This is just to let you know that after a couple of years of absence, Linux Audio Conference will take place in Lyon in 2025 on June 26-28. For those of you who speak French, it will be preceded by the Journée de l'Informatique Musicale (JIM) on June 23-25. The call for contributions will be posted on the conference website by the beginning of September: https://jimlac25.inria.fr/ In the meantime, save the date ;). Cheers, Stéphane (for the jimlac25 committee)

11 months

Re: PandaResampler 0.2.0

by Kjetil Matheussen

Robin Gareus: > Subject: [LAD] Re: PandaResampler 0.2.0 > To: linux-audio-dev(a)lists.linuxaudio.org > Message-ID: <04da06b8-18f1-4216-a878-c5c8530d75f9(a)gareus.org> > Content-Type: multipart/signed; micalg=pgp-sha256; > protocol="application/pgp-signature"; > boundary="------------aDq7SRXL2hBrSytcfa1CO5Lw" > > On 2024-06-10 03:16, Yuri wrote: > > On 6/9/24 15:47, Marc Lavallée wrote: > >> > > Why do people still insist on GNU Tools? > > > > mostly to aid cross compilation. It is still the option that sucks least > for libraries, notably to specify which symbols to expose in a cross > platform library. Though meson is catching up. > Yes, auto tools give the least amount of problems for cross compilation. (cmake is usually a nightmare for cross compilation.) I would also add that auto tools give the least amount of problems in general, it's extremely mature, but I haven't used meson very much.

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Linux-audio-dev June 2024