- Arch-proaudio - lists.archlinux.org

[arch-proaudio] Live video/presentation software
by Farid A 04 Apr '19

04 Apr '19

Hi, I'm in a student group where we organize monthly conferences with public personnalities, and during the conference we use a powerpoint (c) presentation to show images, video, text related to the presentation. Only last time we had issues with the powerpoint (and the macbooks they ran on) so I decided to step in and move us to something more reliable. I'm therefore looking for software (preferably FOSS) that runs on arch, which can broadcast video, audio and text on a screen connected through HDMI whilst being controlled from the computer's screen. Ideally the software would leave little room for error, be reliable/stable, and be rather easy to manipulate live. Thanks in advance for your help

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[arch-proaudio] Aeolus segfaulting
by Jeanette C. 05 Feb '19

05 Feb '19

Hey hey, after a long time, I have started Aeolus again, with the following command: aeolus -J -S /usr/share/aeolus/stops After all registers are tuned Aeolus segfaults in the readline initialisation. Gdb tells me that the last message comes from libncursesw.so.6 (no specific function). Going "up" in gdb I get the following: #2 0x00007ffff74ae746 in _nc_read_entry2 () from /usr/lib/libncursesw.so.6 #3 0x00007ffff74a73ea in _nc_setup_tinfo () from /usr/lib/libncursesw.so.6 #4 0x00007ffff74a7772 in _nc_setupterm () from /usr/lib/libncursesw.so.6 #5 0x00007ffff74a7cb4 in tgetent_sp () from /usr/lib/libncursesw.so.6 #6 0x00007ffff75089bd in _rl_init_terminal_io () from /usr/lib/libreadline.so.8 #7 0x00007ffff74ed51d in rl_initialize () from /usr/lib/libreadline.so.8 #8 0x00007ffff74ed7ed in readline () from /usr/lib/libreadline.so.8 #9 0x00007ffff7fc819e in Reader::thr_main() () from /usr/lib/aeolus_txt.so ... My last update was a couple of days ago. This doesn't happen in other readline/ncurses applications. I did have some issues with AUR packages, that weren't correctly updated, after the last update, due to the new version of readline. Reinstalling them solved the issue. But Aeolus is a package from the community standard repo. Any ideas? Best wishes and thanks, Jeanette -- * Website: http://juliencoder.de - for summer is a state of sound * SoundCloud: https://soundcloud.com/jeanette_c * Youtube: https://www.youtube.com/channel/UCMS4rfGrTwz8W7jhC1Jnv7g * GitHub: https://github.com/jeanette-c * Twitter: https://twitter.com/jeanette_c_s They say, break away - I'm missing out on the fun and games <3 (Britney Spears)

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[arch-proaudio] How to rename an AUR package
by Daniel Appelt 25 Jan '19

25 Jan '19

Hey friendly people, an AUR package that I have created needs an update to a new version. At the same time, I was notified that I should rename it, i.e. add suffix "-bin" as it is a binary package. Could someone please explain to me what would be the best way to do this? A high level explanation should suffice. I am especially concerned about how to let existing users know of the package rename. Many thanks! Daniel

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[arch-proaudio] RT-thread issues after update
by Jeanette C. 25 Jan '19

25 Jan '19

Hey hey, after a system upgrade, two days ago, some JACK clients present me with the following warning: cannot lock down memory for RT thread (Cannot allocate memory) This includes mpv and jalv from the standard Arch repositories and Yoshimi from git (not even AUR). Yoshimi has allso been updated since the upgrade. All clients appear to work fine after that, but I haven't given them stress testing. What can it be? Do I need to worry? Can I fix it? Perhaps a config issues somewhere? Best wishes and TIA, Jeanette -- * Website: http://juliencoder.de - for summer is a state of sound * SoundCloud: https://soundcloud.com/jeanette_c * Youtube: https://www.youtube.com/channel/UCMS4rfGrTwz8W7jhC1Jnv7g * GitHub: https://github.com/jeanette-c * Twitter: https://twitter.com/jeanette_c_s I can't believe it's what I see That the girl in the mirror The girl in the mirror Is me <3 (Britney Spears)

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[arch-proaudio] LV2/freetype/lilv issue, not sure
by Jeanette C. 25 Jan '19

25 Jan '19

Hey hey, since my upgrade from yesterday night, I have issues loading quite a list of LV2 plugins into mod-host. I get warnings about libfreetype.so.6 a lot: lilv_lib_open(): error: Failed to open library /usr/lib/lv2/fil4.lv2/fil4.so (libfreetype.so.6: failed to map segment from shared object) Some warnings in mod-host do not refer to freetype, but still give the same message about "failed to map segment from shared object". Anyone, can confirm that with other tools? What might it be? Freetype, lilv, ...? Plugins that do not work, include many - if not all - of the calf ones (calf-git), and quite a few distrho (the drowaudio reverb) from distrho-lv2-git. I'd appreciate any help. Best wishes and thanks, Jeanette -- * Website: http://juliencoder.de - for summer is a state of sound * SoundCloud: https://soundcloud.com/jeanette_c * Youtube: https://www.youtube.com/channel/UCMS4rfGrTwz8W7jhC1Jnv7g * GitHub: https://github.com/jeanette-c * Twitter: https://twitter.com/jeanette_c_s No one in this world Knows me better than you do So diary I'll confide in you <3 (Britney Spears)

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[arch-proaudio] lmms not working with rt jack; vst and midi
by Orm Finnendahl 22 Jan '19

22 Jan '19

Hi, I'm experiecing problems using lmms. I didn't use it before so it might be related to wrong settings. 1. lmms doesn't run with rt mode enabled in jack. The terminal says: "cannot lock down memory for RT thread (Nicht genügend Hauptspeicher verfügbar)" This is strange as the computer has 20GB of Ram and only 2GB are used upon startup. My /etc/security/limits.conf says: @orm - memlock unlimited @orm - rtprio 99 lmms is running with the "orm" userid. 2. Using a VST plugin (The Demo version of the Legend by Synapse) creates nasty audio dropouts when sending pitchbend or other continuous data while playing (with both, the ALSA or JACK non-rt output). The dropouts are clearly related to the incoming Midi (which is using the ALSA Sequencer interface). The cpu load is around 38% when playing and doesn't change if continous data is received. If it was hardware you'd suspect that midi in and audio are sharing the same interrupt... I know this might be a problem of VST with wine in general or something related to the way the synth is programmed but with these clicks the plugin is basically unusable with controllers and maybe someone knows ways to circumvent this problem. The VST plugin seems to be executed by this process: /usr/lib/lmms/RemoteVstPlugin.exe.so \ /tmp/{3e7dc1eb-ba62-4900-9b5f-ec04d555ec23} xembed BTW (regarding versions): My arch system is up to date. -- Orm

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[arch-proaudio] Load kernel sound modules with parameters, clarification
by Jeanette C. 17 Dec '18

17 Dec '18

Hey hey, I will be installing a new Arch system. It won't be loaded through its own grub. Following the ArchWiki kernel modules guide the following kernel commandline options should translate as below: snd-usb-audio.index=3,4,5,6 snd-usb-audio.vid=0x15ca,0xfc08,0x1c75,0x0944 snd-usb-audio.pid=0x0101,0x0101,0x0401,0x0012 in /etc/modules-load.d/alsa.conf snd-usb-audio in /etc/modprobe.d/alsa.conf snd-usb-audio vid=list_of_ids pid=list_of_ids Will this do the trick? Best wishes and thanks, Jeanette -- * Website: http://juliencoder.de - for summer is a state of sound * SoundCloud: https://soundcloud.com/jeanette_c * Youtube: https://www.youtube.com/channel/UCMS4rfGrTwz8W7jhC1Jnv7g * GitHub: https://github.com/jeanette-c * Twitter: https://twitter.com/jeanette_c_s Skip on the drinks Head to the floor Makin' my way Past the show My body's taken over And I want some more <3 (Britney Spears)

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[arch-proaudio] LAC 2019 : Call for Papers / Posters / Workshops/ Demos / Music / Multimedia Installations
by LAC 05 Dec '18

05 Dec '18

Dear all, It is our pleasure to announce the 17th Linux Audio Conference (LAC-19). We look forward to see you at Stanford this Spring (see details below)! Cheers, [Apologies for cross posting, please circulate widely.] *17th Linux Audio Conference - CCRMA, Stanford University (USA), March 23-26, 2019* After seven years outside of the United States, Linux Audio Conference (LAC) <https://lac.linuxaudio.org> is coming back to Stanford University <http://stanford.edu> on March 23-26, 2019 for its 17th edition! LAC is the international conference about Free/Open-Source Software for music, sound, and other media with GNU/Linux as the main platform. More information about this event can be found on the conference website: https://lac.linuxaudio.org/2019/ *Call for Papers / Posters / Workshops* LAC 2019 invites submissions of papers, posters, and workshops addressing all areas of audio processing based on Linux and open source software. All submissions and presentations are in English. Submitted papers are expected to respect academic standards and must be complete (*a simple abstract is not enough*). Submissions can focus on technical, artistic, and/or scientific issues and can target developers and/or users. This includes (but is not limited to) the following categories: - Audio and Music Languages - 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. The full paper will be available on the website during and after the conference. All papers are peer reviewed by a committee of experts from different disciplines. Reviewers may suggest improvements to the author(s), or require changes in order to accept the submission. The duration of the presentation is 25 minute followed by a 5 minute discussion. *Poster Papers* Poster papers must be written in English, should be 2-4 pages, with up to 5 keywords, including an abstract of up to 150 words. The abstract will be published on the conference website once the poster has been accepted. All posters are peer reviewed by a committee of experts in different disciplines. Reviewers may suggest improvements to the author(s), or require changes in order for the poster to be accepted. *Demos* Demos are informal project (e.g., plug-in, software, interface, idea, etc.) presentations that will be carried out in parallel with poster presentations. Demos can be submitted through this online form <https://lac.linuxaudio.org/2019/submissions.html> to be added to the conference program. *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, etc. Workshops will take place in the CCRMA classroom (which can host approximately 30 people). A projector and a 4 channels sound system will be available in this space. Submit a brief description of the workshop including a URL (if available). *How to Submit Papers / Posters / Workshops?* - Use the online submission tool <http://submissions.html> - Choose the relevant submission type (paper, poster, or workshop) in addition to your 5 categories - The required file format is PDF. Authors must use the provided templates <https://lac.linuxaudio.org/2019/doc/LAC-19-templates.zip> for paper formatting. - Please let us know if you need a special technical setup for your presentation. *Call for Music / Multimedia Installations* LAC 2019 also invites submissions of musical works involving the use of technology/open source software and multimedia installations. A jury will select the compositions and installations to be included in the conference program according to artistic merit and technical feasibility. Please be prepared to perform your work yourself and make sure that you have all resources needed to perform your piece (e.g., instruments, props, other performers, etc.). LAC 2019 cannot pay for any expenses related to a performance (e.g., performers, travel, accommodation, special equipment, etc.). SCLOrk <https://www.scu.edu/cas/music/ensembles/sclork/> will be available to perform new (or old) laptop orchestra compositions, so this type of submission is encouraged this year! SCLOrk <https://www.scu.edu/cas/music/ensembles/sclork/> is the Santa Clara Laptop Orchestra and uses exclusively Linux computers. Musical works and installations can address all areas of digital audio and audiovisual art. This includes (but is not limited to) the following categories: - Electronic Music - Electroacoustic Music - Mixed Music - Acoustic Music - Sound Installation - Interactive Art - Audiovisual Installation - Game in art - Web and Connected Art *Available Setups* For concerts, LAC will provide the following equipment: - CCRMA Stage: 56.8 full 3d sound system (up to 6th order Ambisonics) - CCRMA Listening Room: 22.4 sound system (up to 3d order Ambisonics) - SCLOrk <https://www.scu.edu/cas/music/ensembles/sclork/> (the Santa Clara Laptop Orchestra). Pieces accepted for a performance with SCLOrk will be added to the rehearsal schedule of the corresponding SCU <https://www.scu.edu> class. - Additional requests can be made but are not be guaranteed. *How to Submit Music / Multimedia Installations?* - Use the online submission tool <https://lac.linuxaudio.org/2019/submissions.html> - Select the submission type (performance) - The required file format is PDF, formatted for Letter paper size. Submissions should include: - Description of the project program notes - Link to video or audio demonstration of the project - Technical rider of the work *Important Dates* - *Submission Deadline:* December 7, 2018 (11:59pm PST) - *Notification of Acceptance:* January 18, 2019 - *Camera-ready Version Due:* February 15, 2019 - *Conference Dates:* March 23-26, 2019 *Contact* - lac(a)linuxaudio.org Additional information about LAC-19 can be found on the conference website: https://lac.linuxaudio.org/2019/

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[arch-proaudio] jconvolver (fconvolver segfaulting)
by Jeanette C. 24 Nov '18

24 Nov '18

Hey hey, does anyone else have problems with fconvolver? For me it reliably segfaults everytime I call it with an appropriate configuration file, tested with jconvolver. I tried to debug, but there are no debugging symbols in it. I only get to the point where it fails within the set_options memeber function. Best wishes, Jeanette -- * Website: http://juliencoder.de - for summer is a state of sound * SoundCloud: https://soundcloud.com/jeanette_c * Youtube: https://www.youtube.com/channel/UCMS4rfGrTwz8W7jhC1Jnv7g * GitHub: https://github.com/jeanette-c * Twitter: https://twitter.com/jeanette_c_s All I need is time A moment that is mine While I'm in between <3 (Britney Spears)

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Re: [arch-proaudio] Is It Me or Ardour?
by Ralf Mardorf 12 Nov '18

12 Nov '18

On Fri, 9 Nov 2018 15:48:59 +0000, Dancehall Echo wrote: >Hi, thanks for your reply. > >I have follow your instructions and here is the OP: > >*TOP*: > 2667 turbo 20 0 647984 63212 53120 R 96,7 1,1 2:13.93 >ardour-5.12.0 [it seems to be running] > >*ps aux | grep ardour*: >turbo 2667 97.0 1.0 647984 63212 pts/1 Rl+ 16:43 2:52 >/usr/lib/ardour5/ardour-5.12.0 >turbo 2715 0.0 0.0 8196 2200 pts/3 S+ 16:46 0:00 grep >--color=auto ardour > >In the meantime i found this: >http://tracker.ardour.org/view.php?id=5605#c18109 > >The problem was happening with numix and arc theme from AUR [light & >dark version] but* Ardour works with xfce default theme*. None of the >workaround given in the above link works. On Fri, 9 Nov 2018 15:54:06 +0000, Dancehall Echo wrote: >This theme problem is amazing because i use them [Arc and/or numix] >since a long time now and Ardour was working well ... Even while my mails for what ever reasons need to wait for moderation, you should reply to the mailing list. That it's related to the Arc theme is very strange. I'm using an Arc theme customized by myself and never updated the theme. At least a self build Ardour 5.8 does run without issues on my machine. A few GTK apps became unstable on my machine. SpaceFM GTK2, migrating to SpaceFM GTK3 solved almost all issues. Firefox and all Firefox clones, such as Pale Moon. Claws-Mail GTK2, Claws-Mail GTK3 is even more unstable. I guess GUIs to handle tar archives never worked very well on my Arch install, I anyway prefer CLI over GUI for this purpose. Last but not least, Gimp, but the latest Gimp releases seem to work for nobody on what ever distro. Apart from those few nearly unusable apps, anything else, GTK or Qt, seems to be stable.

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