Linux-audio-dev

linux-audio-dev@lists.linuxaudio.org

3 participants
7448 discussions

by Spencer Jackson

Hi all: I've been trying to make my OSC2MIDI app work as an internal client for the MOD Duo. However I've got some misunderstanding or something. I'm first just trying it on desktop (debian) but even compiling the example internal client at https://github.com/jackaudio/jack2/blob/develop/example-clients/inprocess.c and running lack_load /home/spencer/inprocess yeilds the same result as when I try to run osc2midi. It fails with the message intclient = 0 status = 0x1 Are the internal clients supposed to be in a special directory or something? I haven't had any luck with the googles for documentation or examples beyond the source for the client. My source is at https://github.com/ssj71/OSC2MIDI/tree/jack_internal/src if it helps. If more information about my system or whatever would be helpful just let me know. Thanks, _Spencer

5 years, 6 months

[LAA] [LAU] Guitarix 0.38.1 Bug Fix release

by Hermann Meyer

Guitarix release 0.38.1 Guitarix is a tube amplifier simulation for jack (Linux), with an additional mono and a stereo effect rack. Guitarix includes a large list of LV2 and LADSPA plugins, and support LADSPA / LV2 plugs as well in it's racks. The guitarix engine is designed for LIVE usage, and feature ultra fast, glitch and click free preset switching and is full Midi and remote controllable (the Web UI is not included in the distributed tar ball). *This is a critical bug-fix release.* In version 0.38.0 the state (preset) wasn't loaded correctly by the engine on startup, this release fix that. When you've already upgraded to 0.38.0, please consider to update again to 0.38.1 Still the LV2 plugins coming with guitarix using a Gtkmm based UI, I'll work on it to port them to X11 based UI's. Refer to our project page for more information: http://guitarix.org Download Site: http://sourceforge.net/projects/guitarix/ enjoy regards hermann

5 years, 6 months

Berlin Linux Audio meeting @ c-base 2019-04-09

by Daniel Swärd

Hi all. As usual the second Tuesday of the month is upon us. I'll be in the mainhall from 20:00. See you there. Cheers /Daniel PS Let's keep the follow-up discussion in the LAU thread. DS

5 years, 6 months

Latency measurements: External round-trip vs. absolute in/out values

by Tim

With a discussion about latency in the Jack lists, I thought I ask a question I've been wondering: By connecting a cable from a HW output to a HW input, one can measure the round-trip latency. But if the purpose is to try to determine the absolute output latencies of the output port and the input port, by say, dividing the round-trip value by 2 and assuming this value applies to both ports, then won't this concept fail if the output port has a different latency than the input port? Say, by using two different devices for the input and output ports. I find myself asking what exactly transport position is and how it relates to the data in the outside physical world. I wonder if it would make sense to build an external hardware transport position indicator so that the latency test signals could be compared with it. For example to measure an output port's latency: ------>--[HW transport position indicator]-->--- [PC]------- | --- | | | -->-[Audio output port]-------->---[Comparator] | | -----<--[Delay measurement]-------<----------- The remaining unknown - the input port latency would be given by subtracting this measured value from the total round-trip latency. Sound crazy? Thanks. Tim.

5 years, 6 months

[LAA] [LAU] Guitarix 0.38.0 released

by Hermann Meyer

Guitarix release 0.38.0 Guitarix is a tube amplifier simulation for jack (Linux), with an additional mono and a stereo effect rack. Guitarix includes a large list of LV2 and LADSPA plugins, and support LADSPA / LV2 plugs as well in it's racks. The guitarix engine is designed for LIVE usage, and feature ultra fast, glitch and click free preset switching and is full Midi and remote controllable (the Web UI is not included in the distributed tar ball). From the changelog: * fix bug #67, don't use malloc.h on FreeBSD * remove assert for ports count, to allow save removing of changed LV2 plugins * add new option -E --hideonquit, this makes the UI experience smooth when used as LV2 plugin * add support for LV2_URID_Map, LV2_URID_Unmap and LV2_OPTIONS to allow more plugs to load * fix compiler warnings with gcc 8 * add exit handler and warning when samplerate is above 96kHz * hide splash on error message * set online help to sourcforge/discussion * fix build against boost-1.69 * add Russian-language translation by Valeriy Shtobbe and Olesya Gerasimenko, many thanks! * update all build scripts to use faust version 2.15.11 and update all generated faust files Still the LV2 plugins coming with guitarix using a Gtkmm based UI, I'll work on it to port them to X11 based UI's. Refer to our project page for more information: http://guitarix.org Download Site: http://sourceforge.net/projects/guitarix/ enjoy regards hermann

5 years, 6 months

LAC2019@CCRMA-Stanford photos...

by Rui Nuno Capela

hi all, just back home safe and waaay smoother than when getting there first :) now, for all the traditional and lousy unedited photos, straight out and dumped from the camera sd-card: https://www.rncbc.org/lac/lac2019 (note that the weather was lousy, cloudy and rainy...) cheers and thanks for all the fish(*) -- rncbc aka. Rui Nuno Capela (*) ps. had none actually, there were only dead meat (and dead vegetables too) but had it great on oysters on the last day, if seafood counts as non-meat:)~

5 years, 6 months

A shout out to instrument patch makers

by Will Godfrey

For Yoshi and Zyn, there are a very large number of patches that have no copyright/license information filled in. In the first place this makes it impossible to give any kind of acknowledgement. Potentially more critical is the new messy copyright legislation staggering through the EU. I don't know if there is any practical way of adding this to old files, but at least when creating new one *please* fill these fields in - even if you don't think you'll ever release them. As and aside, a lot of these also have no 'Type' filled in :( Apologies for the cross post - not really sure where this should go. -- Will J Godfrey http://www.musically.me.uk Say you have a poem and I have a tune. Exchange them and we can both have a poem, a tune, and a song.

5 years, 6 months

Web Audio Conference 2019 - 1st Call for Submissions

by Gerard Roma

*Apologies for cross-postings* # Fifth Annual Web Audio Conference - Call for Submissions https://www.ntnu.edu/wac2019 The fifth Web Audio Conference (WAC) will be held 4-6 December, 2019 at the Norwegian University of Science and Technology (NTNU) in Trondheim, Norway. WAC is an international conference dedicated to web audio technologies and applications. The conference addresses academic research, artistic research, development, design, evaluation and standards concerned with emerging audio-related web technologies such as Web Audio API, Web RTC, WebSockets and Javascript. The conference welcomes web developers, music technologists, computer musicians, application designers, industry engineers, R&D scientists, academic researchers, artists, students and people interested in the fields of web development, music technology, computer music, audio applications and web standards. The previous Web Audio Conferences were held in 2015 at IRCAM and Mozilla in Paris, in 2016 at Georgia Tech in Atlanta, in 2017 at the Centre for Digital Music, Queen Mary University of London in London, and in 2018 at TU Berlin in Berlin. The internet has become much more than a simple storage and delivery network for audio files, as modern web browsers on desktop and mobile devices bring new user experiences and interaction opportunities. New and emerging web technologies and standards now allow applications to create and manipulate sound in real-time at near-native speeds, enabling the creation of a new generation of web-based applications that mimic the capabilities of desktop software while leveraging unique opportunities afforded by the web in areas such as social collaboration, user experience, cloud computing, and portability. The Web Audio Conference focuses on innovative work by artists, researchers, students, and engineers in industry and academia, highlighting new standards, tools, APIs, and practices as well as innovative web audio applications for musical performance, education, research, collaboration, and production, with an emphasis on bringing more diversity into audio. ## Theme and Topics The theme for the fifth edition of the Web Audio Conference is Diversity in Web Audio. We particularly encourage submissions focusing on inclusive computing, cultural computing, postcolonial computing, and collaborative and participatory interfaces across the web in the context of generation, production, distribution, consumption and delivery of audio material that especially promote diversity and inclusion. ## Further areas of interest include: * Web Audio API, Web MIDI, Web RTC and other existing or emerging web standards for audio and music. * Development tools, practices, and strategies of web audio applications. * Innovative audio-based web applications. * Web-based music composition, production, delivery, and experience. * Client-side audio engines and audio processing/rendering (real-time or non real-time). * Cloud/HPC for music production and live performances. * Audio data and metadata formats and network delivery. * Server-side audio processing and client access. * Frameworks for audio synthesis, processing, and transformation. * Web-based audio visualization and/or sonification. * Multimedia integration. * Web-based live coding and collaborative environments for audio and music generation. * Web standards and use of standards within audio-based web projects. * Hardware and tangible interfaces and human-computer interaction in web applications. * Codecs and standards for remote audio transmission. * Any other innovative work related to web audio that does not fall into the above categories. ## Submission Tracks We welcome submissions in the following tracks: papers, talks, posters, demos, performances, and artworks. All submissions will be single-blind peer reviewed. The conference proceedings, which will include both papers (for papers and posters) and extended abstracts (for talks, demos, performances, and artworks), will be published open-access online with Creative Commons attribution, and with an ISSN number. **A selection of the best papers, as determined by a specialized jury, will be offered the opportunity to publish an extended version at the Journal of Audio Engineering Society.** **Papers**: Submit a 4-6 page paper to be given as an oral presentation. **Talks**: Submit a 1-2 page extended abstract to be given as an oral presentation. **Posters**: Submit a 2-4 page paper to be presented at a poster session. **Demos**: Submit a work to be presented at a hands-on demo session. Demo submissions should consist of a 1-2 page extended abstract including diagrams or images, and a complete list of technical requirements (including anything expected to be provided by the conference organizers). **Performances**: Submit a performance making creative use of web-based audio applications. Performances can include elements such as audience device participation and collaboration, web-based interfaces, Web MIDI, WebSockets, and/or other imaginative approaches to web technology. Submissions must include a title, a 1-2 page description of the performance, links to audio/video/image documentation of the work, a complete list of technical requirements (including anything expected to be provided by conference organizers), and names and one-paragraph biographies of all performers. **Artworks**: Submit a sonic web artwork or interactive application which makes significant use of web audio standards such as Web Audio API or Web MIDI in conjunction with other technologies such as HTML5 graphics, WebGL, and Virtual Reality frameworks. Works must be suitable for presentation on a computer kiosk with headphones. They will be featured at the conference venue throughout the conference and on the conference web site. Submissions must include a title, 1-2 page description of the work, a link to access the work, and names and one-paragraph biographies of the authors. **Tutorials**: If you are interested in running a tutorial session at the conference, please contact the organizers directly. ## Important Dates March 26, 2019: Open call for submissions starts. June 16, 2019: Submissions deadline. September 2, 2019: Notification of acceptances and rejections. September 15, 2019: Early-bird registration deadline. October 6, 2019: Camera ready submission and presenter registration deadline. December 4-6, 2019: The conference. At least one author of each accepted submission must register for and attend the conference in order to present their work. A limited number of diversity tickets will be available. ## Templates and Submission System Templates and information about the submission system are available on the official conference website: https://www.ntnu.edu/wac2019 Best wishes, The WAC 2019 Committee

5 years, 6 months

Sonoj Convention 2019 - Announcement #1 - Looking for Speakers (no papers required)

by Sonoj Convention

Ladies and Gentlemen, The Sonoj Convention is an annual event in Cologne, Germany about music production with free and open source software (and hardware). This year it will be on October the 26th and 27th 2019. It features demonstrations, talks and hands-on workshops. Meet like-minded people, learn insider knowledge and tricks, participate in our one-hour production challenge! Everybody is welcome, no matter your musical or technological background or capabilities. Our Website: https://sonoj.org This is our first announcement, reaching out to our core audience. The event is more than half a year away, but we are starting talks to find speakers and lecturers now. Sonoj is not a software-developers conference; instead the stereotypical speaker is an experienced musician or producer. If you would like to make a contribution, please send an informal and short e-mail with your ideas to info(a)sonoj.org Here are some examples from the past years, to get an idea: * Creating a Radio Drama with Ardour (for Beginners) * Synthesizing electronic dance music with ZynAddSubFx * Carla Plugin Host Feature Demonstration and Workflows */Making Music with Text/ - Audible Programming with Sonic Pi /* The Realm of Too Many Options/ - Write, record, mix and actually finish your music. * Fantasy Game Soundtrack Production in an open source ecosystem If you would like to participate creatively in the Sonoj Convention please reach out to us! (And if you just want to visit, the visitor registration is already online as well) I am looking forward to your answer! Nils Hilbricht Sonoj Convention https://www.sonoj.org.

5 years, 6 months

LAC steaming to c-base, Berlin

by Robin Gareus

Hi all, A group of people who do not attend the Linux Audio Conference in Stanford this year are meeting at c-base.org to participate remotely. http://lac.linuxaudio.org/2019/#program We'll watch the live-stream of the paper-presentations on Saturday, Sunday, Monday 17h to 21h CET, and share dinner, which is sponsored by the Paul Davis and the Ardour community! You're very welcome to join our small local hallway track in the space station below Berlin-Mitte, located in the 2nd backyard of Rungestraße 20, 10179 Berlin. There'll also some un-conference BarCamp track, likley some LV2 hacking on the week-end. Monday evening overlaps with the Bitwig user-group at c-base. Going to be fun! Looking forward to seeing you there, robin PS. Safe travels to all who head to Stanford.

5 years, 6 months

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Linux-audio-dev