Linux-audio-announce

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[Extended Deadline!] LAC 2025: Linux Audio Conference 2025 (Lyon, France, June 28-28, 2025) -- Call for Contributions

by Romain Michon

[sorry for cross-posting, please distribute widely] Hi everyone, We're happy to announce that the submission deadline of LAC 2025 has been extended to March 31, 2025! We're looking forward to seeing you in Lyon in June! *Overview* After a few "quiet" post-covid years, Linux Audio Conference is returning in 2025 (https://jimlac25.inria.fr/lac/)! It will take place in Lyon (France) on June 26-28, 2025 under the hospices of Inria, INSA Lyon, and GRAME-CNCM. It will be preceded by the "Journées de l'Informatique Musicale (JIM)" which will also happen in Lyon (June 23-25, 2025). LAC 2025 welcomes scientific, technical, and artistic contributions. It is free and as open as possible. In that regard, we slightly adapted the call below to encourage submissions by people outside of the academic community. While it is possible to submit academic papers (that will be peer-reviewed and published in the LAC 2025 proceedings), open presentations, not necessarily connected to a paper, can be proposed as well. *Important Dates *- March 31, 2025 (March 24, 2025): Paper and Music submission deadline - April 18, 2025: Review deadline - April 25, 2025: Notification of acceptance - May 23, 2025: Camera-Ready version deadline - June 23-25, 2025: Journées de l'Informatique Musicale (JIM) - June 26-28, 2025: Linux Audio Conference (LAC) *Call for Papers / Presentations / Demos / Workshops* LAC 2025 invites submissions of papers, presentations, and workshops addressing all areas of audio processing based on Linux and open source software. All submissions and presentations are in English. Submissions can focus on technical, artistic, and/or scientific issues and target developers and/or users. This includes (but is not limited to) the following categories: - Audio and Music Languages - Audio and AI - Audio Hardware Support - Audio Plugins - Drivers, System and Sound Architecture - Education and E-Learning - Games - Interactive Art - Interface Design - Live Coding - Live Performance - Media Art - MIDI, OSC... - Mobile Audio - Music Composition - Music Production - Networked Audio - Physical Computing - Projects Realized using Linux Audio - Realtime Kernel and Linux Distributions - Signal Processing and Sound Synthesis - Sound Spatialization - Standards and Protocols - Video - Etc. *Full Papers* Full papers must be written and presented in English. The length of papers is 4 to 8 pages, with up to 5 keywords, including an abstract of up to 200 words. The abstract will be published on the conference website once the paper has been accepted. Full papers will be available on the website during the conference, and after in the proceedings (which will be published with an ISBN number). All papers are peer reviewed by a committee of experts from different disciplines. Reviewers may suggest improvements to the author(s), require changes in order to accept the submission, or reject it. Full papers will be presented during the conference as in-person oral presentations. *Presentations Without an Associated Paper *LAC 2025 welcomes oral presentations not associated to a peer-reviewed paper published in the conference proceedings. Such presentations are selected by the scientific committee, based on a abstract up to 500 words, with up to 5 keywords. No full paper is required in this category. The abstract will be available on the website during and after the conference. Presentations in this category have the same format as full paper presentations and will hence be presented during the conference as in-person oral presentations. *Demos *Demos are informal project (e.g., plug-in, software, interface, idea, etc.) presentations that will be carried out between the papers presentation sessions. *Workshops *Workshop presentations (max duration of 2h) should be 1-4 pages, with up to 5 keywords, including an abstract of up to 150 words to be published on the conference website. Make sure that your proposal indicates if participants are expected to have a specific level, if there are prerequisites, if you'd like to limit the number of participants, if you have specific technical requirements, etc *Call for Music * We invite submissions of electronic, electroacoustic and mixed music as well as interactive art installations with an emphasis on open source software. A jury will select the compositions and performances to be included in the LAC 2025 conference program according to artistic merit and technical feasibility. Applicants should expect to perform their work themselves and have all resources needed to perform the piece if selected (e.g., instruments, props, other performers, etc.). *Concert Venues* The LAC 2025 musical program will consist of three concerts, two of which will take place at Le Théâtre Astrée (https://theatre-astree.univ-lyon1.fr/qui-sommes-nous/), a concert hall equipped with an 8.4 sound system. For this venue, we are particularly interested in electronic / computer music pieces that will leverage the multichannel set up. The third concert will take place at Le Sucre (https://le-sucre.eu/le-lieu/), an event that will host live coding sets and other performances devised for a night club setting with stereo diffusion. *How to Submit Your Work?* Please, visit the lac website for additional information on how to submit your contribution to LAC 2025: https://jimlac25.inria.fr/lac/ *Contact* For any questions, feel free to contact us at jimlac25(a)grame.fr -- Romain Michon +33 (0) 7 67 39 72 40 https://ccrma.stanford.edu/~rmichon

2 weeks, 2 days

Ratatouille.lv2 v0.9.9 released

by Hermann Meyer

Ratatouille is a Neural Model loader and mixer for Linux/Windows. ![Ratatouille](https://github.com/brummer10/Ratatouille.lv2/blob/main/Ratatouille.png?raw=true) This release Fix a issue with the lv2 plugin from last 0.9.8 release which leads to a crash on several hosts. It also introduce a stand-alone version for Linux and windows. Stand-alone app will auto save and reload the last used settings. A prebuild binary of the app is provided here in Ratatouille.lv2-app-v0.9.9-linux-x86_64.tar.xz/ Ratatouille.lv2-app-v0.9.9-win64.zip Note that the binary is fully optimized, so when your CPU didn't support x86-64-v3 the only way to get it is to compile it yourself. Ratatouille allow to load up to two neural model files and mix there output. Those models could be [*.nam files](https://tonehunt.org/all) or [*.json or .aidax files](https://cloud.aida-x.cc/all). So you could blend from clean to crunch for example, or, go wild and mix different amp models, or mix a amp with a pedal simulation. Ratatouille using parallel processing to process the second neural model and the second IR-File to reduce the dsp load. Ratatouille allow to compensate phasing issues between the loaded Models. The "Delay" control could add a small delay to add some color/reverb to the sound. To round up the sound it allow to load up to two Impulse Response files and mix there output as well. You could try the wildest combinations, or, be conservative and load just your single preferred IR-File. Each neural model may have a different expected Sample Rate, Ratatouille will resample the buffer to match that. Impulse Response Files will be resampled on the fly to match the session Sample Rate. Project Page (Source Code): https://github.com/brummer10/Ratatouille.lv2 Release Page (Binaries): https://github.com/brummer10/Ratatouille.lv2/releases/tag/v0.9.9 have fun

2 weeks, 6 days

Aqualung 2.0

by Tom Szilagyi

The Aqualung music player had its 2.0 release earlier this week. This new major release comes a solid decade after the preceding one (Aqualung 1.0 was released in 2015). Changes to the player’s core functions are minimal: just a handful of fixes, more or less. The most substantial change, also the main motivation for touching Aqualung after so many years, is migrating the UI from GTK2 to GTK3. Read more at: https://tomscii.sig7.se/2025/02/Aqualung-2.0 Thanks, Tom

1 month, 1 week

Ratatouille.lv2 v0.9.6 released

by Hermann Meyer

Ratatouille is a Neural Model loader and mixer for Linux/Windows. This release implement a little ramp on Model file switching to avoid pops or clicks. Also provide binaries for older CPU's on windows. Ratatouille allow to load up to two neural model files and mix there output. Those models could be *.nam files <https://tonehunt.org/all> or *.json or .aidax files <https://cloud.aida-x.cc/all>. So you could blend from clean to crunch for example, or, go wild and mix different amp models, or mix a amp with a pedal simulation. Ratatouille using parallel processing to process the second neural model and the second IR-File to reduce the dsp load. The "Delay" control could add a small delay to the second model to overcome phasing issues, or to add some color/reverb to the sound. To round up the sound it allow to load up to two Impulse Response files and mix there output as well. You could try the wildest combinations, or, be conservative and load just your single preferred IR-File. Each neural model may have a different expected Sample Rate, Ratatouille will resample the buffer to match that. Impulse Response Files will be resampled on the fly to match the session Sample Rate. Project Page: https://github.com/brummer10/Ratatouille.lv2 Release Page: https://github.com/brummer10/Ratatouille.lv2/releases/tag/v0.9.6

1 month, 2 weeks

Release aloop v0.3

by Hermann Meyer

aloop is a audio file looper for Linux using PortAudio as backend (jack, pulse, alsa), libsndfile to load sound files and zita-resampler to resample the files when needed. The GUI is created with libxputty. aloop comes with the following features: * support all file formats supported by libsndfile. * resample files on load to match session Sample Rate * file loading by drag n' drop * included file browser * open file directly in a desktop file browser * open file on command-line * create, sort, save and load playlists * select to loop over a single file or over the play list * move play-head to mouse position in wave view * set loop points for start/end loop * save loop points in play list * save selected loop as wav file * play backwards * volume control * endless looping * break playback (keyboard support space bar) * reset play-head to start position (keyboard support courser left) This release add support for drag and drop indicator inside the playlist. It may as well fix some small bugs, or, maybe introduce new ones. Dependencies * libsndfile1-dev * portaudio19-dev * libcairo2-dev * libx11-dev Project Page: https://github.com/brummer10/aloop Release Page: https://github.com/brummer10/aloop/releases/tag/v0.3

1 month, 2 weeks

ImpulseLoader.lv2 v0.4 released

by Hermann Meyer

ImpulseLoader is a simple, mono, IR-File loader/convolution LV2 plug for Linux and windows. This release fix issues with arbitrary buffer sizes. IR-Files could be loaded via the integrated File Browser, or, when supported by the host, via drag and drop. A pop up menu provide quick access to all IR Files in the current loaded Path. If the IR-File have more then 1 channel, only the first channel will be used. IR-Files will be resampled on the fly to match the session Sample Rate. Project Page: https://github.com/brummer10/ImpulseLoader.lv2 Release Page: https://github.com/brummer10/ImpulseLoader.lv2/releases/tag/v0.4

1 month, 2 weeks

Qtractor 1.5.3 - A Mid-Winter'25 Release

by Rui Nuno Capela

Hi all, Qtractor 1.5.3 (mid-winter'25) is out! Change-log: - MIDI clip editor (aka. piano-roll): mouse cursor pointer shape now follows the current edit/draw mode permanently. - Attempt to improve MIDI SPP accuracy by postponing MIDI Continue command in one 16th note at playback (re)start. - Specific to (lib)RubberBand time-stretching and pitch-shifting, formant preserve and finer (R3) engine processing are now added to audio clip/playback options. - Resume normal playback state if rolling when transport rewind or fast-forward is disengaged. - Custom Style Sheet files (*.qss): all url() paths are considered relative to style-sheet file location. - Enforce a fixed size when LV2 plug-in UI no-user-resize feature is explicitly requested.) 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-1.5.3.tar.gz - source package (openSUSE Tubleweed): https://download.sf.net/qtractor/qtractor-1.5.3-10.1.rncbc.suse.src.rpm - binary package (openSUSE Tubleweed): https://download.sf.net/qtractor/qtractor-1.5.3-10.1.rncbc.suse.x86_64.rpm - AppImage [7] package: https://download.sf.net/qtractor/qtractor-1.5.3-10.1.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/2735 Enjoy! - - - rncbc aka Rui Nuno Capela

1 month, 3 weeks

Brickworks 1.3.0 released

by Stefano D'Angelo

Hi all! We are glad to announce that we released version 1.3.0 of Brickworks, the music DSP toolkit that supplies you with the fundamental building blocks for creating and enhancing audio engines on any platform. Here's a short list of changes: * Introduced fast time-invariant TDF-II IIR filters of first and second order (biquads) and new related examples. * Now C++ API/implementations use BW_NULL instead of nullptr to support ancient C++ compilers. * Improved build system for examples and updated related documentation. * Fixed several small documentation typos. Consequently, we also updated Brickworks Pro algorithms to take advantage of the latest improvements. Brickworks is fully free/open source software (GPLv3 license) and we also offer commercial licenses. You can find more information on the official web page: https://www.orastron.com/algorithms#brickworks. Best regards, Stefano D'Angelo Orastron - https://www.orastron.com/

1 month, 4 weeks

Call for LAC Reviewers

by Romain Michon

Hi everyone, As we're getting ready for LAC 2025, we're currently looking for potential reviewers for the scientific track of the conference. In fact, and to be completely transparent about this, it turns out that the "historial list of LAC reviewers" has been lost after "all these years without LAC." After the paper submission deadline (March 24) will be passed, reviewers will have until April 18 to write their reviews. We hope to be able to assign no more than three papers to each reviewer. Whether you already reviewed for LAC or not, we kindly ask you to fill out this form: https://framaforms.org/reviewer-call-for-lac-25-1738313198 to apply to be a reviewer. Filling out this form doesn't guaranty that you will review for LAC: your application will be reviewed by the scientific committee of the conference who will shortly let you know if it has been accepted or not. We thank you in advance for your help with that! As a side note, we remind you (again) that the paper submission deadline for LAC 2025 is March 24: https://jimlac25.inria.fr/lac/#important-dates We look forward to seeing you in Lyon in June! Cheers, Romain Michon (for the LAC 2025 organizational committee) ps: feel free to forward this message to any group/individual/platform who might be able to help with this!

1 month, 4 weeks

First release for aloop v0.1

by Hermann Meyer

aloop is a audio file looper for Linux using PortAudio as back-end (jack, pulse, alsa), libsndfile to load sound files and zita-resampler to resample the files when needed. The GUI is created with libxputty. This is the first release for aloop, it comes with the following features: * support all file formats supported by libsndfile. * resample files on load to match session Sample Rate * file loading by drag n' drop * included file browser * open file directly in a desktop file browser * open file on command-line * create, sort, save and load playlists * select to loop over a single file or over the play list * move play-head to mouse position in wave view * set loop points for start/end loop * save loop points in play list * save selected loop as wav file * play backwards * volume control * break playback (keyboard support space bar) * reset play-head to start position (keyboard support courser left) Dependencies * libsndfile1-dev * portaudio19-dev * libcairo2-dev * libx11-dev Project page: https://github.com/brummer10/aloop Release Page: https://github.com/brummer10/aloop/releases/tag/v0.1 Please report issues to the project issue tracker.

2 months

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