Linux-audio-user

linux-audio-user@lists.linuxaudio.org

7 participants
20548 discussions

by Holger Dehnhardt

After the second move this year, I've finally started to set up my home studio properly again. (Ubuntu 24.04.1 LTS, Mixbus, RME ADI-2 Pro for monitoring, Focusrite Scarlett 18i20 2nd generation for integrating analog hardware) Since I've also updated Ubuntu, I've switched my workstation to Pipewire, as I've had quite good experiences with it on my laptop and running several audio interfaces in parallel is quite problematic. My first attempt with a smaller project (17 audio tracks) ran without any problems. My second attempt with a medium-sized project (~30 audio tracks), however, is driving me to despair. I have a DSP load of 50-60%, no buffer underruns but constant stuttering and occasional beeping. The log says the following Nov 12 22:37:13 muse pipewire[2048]: spa.alsa: hw:4c: snd_pcm_mmap_commit error 1022 514 1022: Data transfer interrupted (broken pipe) Nov 12 22:37:24 muse pipewire[2048]: spa.alsa: hw:4c: follower delay:873 target:1536 thr:1024 resample:1, resync (2 suppressed) It is interesting that when I start the safe mode in Mixbus, i.e. all effects are switched off, I have a DSP load of 10 percent and the stuttering and beeping is just as present. I don't have any analog hardware connected at this stage, so I read all tracks directly from disk and send them stereo to the RME interface. I didn't have these problems under jack2, but then the RME was also connected to the Scarlett via TOSLink, so there was only one interface visible to the system. I therefore suspect that it is a problem with the hard disk usage, as I can't think of any other reason. Unfortunately I have not found a way to optimize hard disk access and I don't even know if this is done directly by Pipewire or if one of the usual libraries is used for this. Have you seen this phenomenon before or do you have any ideas what else I can try? Thanks for any suggestions! Holger -- Holger Dehnhardt holger(a)dehnhardt.org https://www.dehnhardt.org

4 days, 1 hour

Realtime-Kernel patch merged to mainline kernel after 20 years...

by Tobias Küchel

Cheers to Ingo Molnar! I am not sure how many users are interested in such news, since there might be still a linux-audio-dev community that I am not part of anymore. Nevertheless, it amuses me that basically half my life ago, I struggled and tested and read tons of stuff, invested a lot of time to get some nice audio stuff going on linux and some rather crappy hardware... and now, 20 years later, the foundation to all of it - a real-time kernel - did not disappear but was developed and maintained until the eagle has landed. Again, cheers to Ingo and all that contributed! Yours, Tobias.

4 days, 8 hours

Re: A web-based sound maker

by Mario Lang

"David W. Jones" <gnome(a)hawaii.rr.com> writes: > https://draw.audio/ Also saw that on HN today. In the comments, there was another fun web audio link: https://roland50.studio/ -- CYa, ⡍⠁⠗⠊⠕

5 days, 15 hours

Bach, Mozart or jazz: Scientists provide a quantitative measure of variability in music pieces

by David W. Jones

<https://phys.org/news/2024-11-bach-mozart-jazz-scientists-quantitative.html> --- David W. Jones gnome(a)hawaii.rr.com exploring the landscape of god http://dancingtreefrog.com Sent from my Android device with F/LOSS K-9 Mail.

1 week, 4 days

Behringer FCB1010, or similar

by Worik

Friends I am looking for a MIDI foot pedal board for use with my LV2 simulators (https://github.com/worikgh/120Proof.git) I am considering the Behringer FCB1010 but i am naturally unsure if it is suitable I see on the interweb that it has all sorts of "banks" that can be programmed, but that interests me not What I care about is can I address it from a Linux box, see the MIDI events. Has anybody any experience with this, or recommendations for another product? I am currently using a SINCO pedal from Aliexpress.com that is great, but only has four switches I am keen on more options, and especially the expression peda pedals Worik Sent from Proton Mail Android

2 weeks

[ANN] Qtractor 1.4.0 - A Halloween'24 Release

by Rui Nuno Capela

Hello again, Qtractor 1.4.0 (halloween'24) is out! Change-log: - Improved color contrast on track and clip title labels, when given track foreground and background colors are too similar in lightness. - Clip/Split now also applies to multiple selected clips, on any other track than current, if the split point (play-head) is found within. - Clip Merge/Export... audio clips now taking the internal audio resolution (ie. 64 frames/period), independent to former JACK/Pipewire buffer-size/period. - New Clip Mute state property introduced. - New MIDI clip tool option: Normalize / Compress. - Prepping up next development cycle (Qt >= 6.8) 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-1.4.0.tar.gz - source package (openSUSE Tubleweed): https://download.sf.net/qtractor/qtractor-1.4.0-6.1.rncbc.suse.src.rpm - binary package (openSUSE Tubleweed): https://download.sf.net/qtractor/qtractor-1.4.0-6.1.rncbc.suse.x86_64.rpm - AppImage [7] package: https://download.sf.net/qtractor/qtractor-1.4.0-6.1.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/2685 Cheers && Keep having (lotsa) fun! - - - rncbc aka Rui Nuno Capela

2 weeks, 2 days

[ANN] Vee One Suite 1.1.3 - A Halloween'24 Release

by Rui Nuno Capela

Greetings (from the crypt), The 'Vee One Suite', the so called 'gang-of-four' '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 for the spooky Halloween'24 evening... All creepy delivered in dual form: - 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: - Prepping up next development cycle (Qt >= 6.8) 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 1.1.3 (halloween'24) 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/synthv1-1.1.3.tar.gz - source package: https://download.sf.net/synthv1/synthv1-1.1.3-5.1.rncbc.suse.src.rpm - binary packages (openSUSE Tumbleweed): https://download.sf.net/synthv1/synthv1-jack-1.1.3-5.1.rncbc.suse.x86_84.rpm https://download.sf.net/synthv1/synthv1-lv2-1.1.3-5.1.rncbc.suse.x86_84.rpm - AppImage [9] package (JACK stand-alone only): https://download.sf.net/synthv1/synthv1-jack-1.1.3-5.1.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 1.1.3 (halloween'24) 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/samplv1-1.1.3.tar.gz - source package: https://download.sf.net/samplv1/samplv1-1.1.3-5.1.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): https://download.sf.net/samplv1/samplv1-jack-1.1.3-5.1.rncbc.suse.x86_84.rpm https://download.sf.net/samplv1/samplv1-lv2-1.1.3-5.1.rncbc.suse.x86_84.rpm - AppImage [9] package (JACK stand-alone only): https://download.sf.net/samplv1/samplv1-jack-1.1.3-5.1.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 1.1.3 (halloween'24) 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/drumkv1-1.1.3.tar.gz - source package: https://download.sf.net/drumkv1/drumkv1-1.1.3-5.1.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): https://download.sf.net/drumkv1/drumkv1-jack-1.1.3-5.1.rncbc.suse.x86_84.rpm https://download.sf.net/drumkv1/drumkv1-lv2-1.1.3-5.1.rncbc.suse.x86_84.rpm - AppImage [9] package (JACK stand-alone only): https://download.sf.net/drumkv1/drumkv1-jack-1.1.3-5.1.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 1.1.3 (halloween'24) 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/padthv1-1.1.3.tar.gz - source package: https://download.sf.net/padthv1/padthv1-1.1.3-5.1.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): https://download.sf.net/padthv1/padthv1-jack-1.1.3-5.1.rncbc.suse.x86_84.rpm https://download.sf.net/padthv1/padthv1-lv2-1.1.3-5.1.rncbc.suse.x86_84.rpm - AppImage [9] package (JACK stand-alone only): https://download.sf.net/padthv1/padthv1-jack-1.1.3-5.1.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/2684 Enjoy the treats! - - - rncbc aka. Rui Nuno Capela

2 weeks, 2 days

[music] Song for piano and flute

by Jeanette C.

Hey hey, and here's the second one. This time it's a "proper composition", with more of a late 19th century feel. A more positive and intense piece as well. https://youtu.be/SukYCNZ82LU The piano had been played months before the flute could be recorded. Due to time considerations several takes had to be comp'ed, which you can hear. My apologies. Next time, there will hopefully be more time to forego that practise. Best wishes and, mainly, enjoy, Jeanette -- * Website: http://juliencoder.de - for summer is a state of sound * Youtube: https://www.youtube.com/channel/UCMS4rfGrTwz8W7jhC1Jnv7g * Audiobombs: https://www.audiobombs.com/users/jeanette_c * GitHub: https://github.com/jeanette-c I used to think I had the answers to everything But now I know ... :) <3 (Britney Spears)

2 weeks, 4 days

[ANN] QjackCtl 1.0.3 - An Autumn'24 Release

by Rui Nuno Capela

Hi everyone! QjackCtl 1.0.3 (autumn'24) is out! QjackCtl [1] is an aged yet modern, not so 'simple' anymore, Qt [2] application to control the JACK [3] sound server, for the Linux Audio [4] infrastructure. Change-log: - Long missing D-Bus method slot added: "reset" (dbus-send --system / org.rncbc.qjackctl.reset). - Graph: Node reference positioning changed to the top-left corner, improving the base snapping-to-grid perception. - Prepping up next development cycle (Qt >= 6.8) Website: https://qjackctl.sourceforge.io http://qjackctl.sourceforge.net Project page: https://sourceforge.net/projects/qjackctl Downloads: https://sourceforge.net/projects/qjackctl/files - source tarball: https://download.sf.net/qjackctl/qjackctl-1.0.3.tar.gz - source package: https://download.sf.net/qjackctl/qjackctl-1.0.3-4.1.rncbc.suse.src.rpm - binary packages: https://download.sf.net/qjackctl/qjackctl-1.0.3-4.1.rncbc.suse.x86_64.rpm - AppImage [6] package: https://download.sf.net/qjackctl/qjackctl-1.0.3-4.1.x86_64.AppImage Git repos: https://git.code.sf.net/p/qjackctl/code https://github.com/rncbc/qjackctl.git https://gitlab.com/rncbc/qjackctl.git https://codeberg.com/rncbc/qjackctl.git License: QjackCtl [1] is free, open-source Linux Audio [4] software, distributed under the terms of the GNU General Public License (GPL) version 2 or later [5]. References: [1] QjackCtl - A JACK Audio Connection Kit Qt GUI Interface https://qjackctl.sourceforge.io [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] Linux Audio consortium of libre software for audio-related work https://linuxaudio.org [5] GPL - GNU General Public License https://www.gnu.org/copyleft/gpl.html [6] AppImage, Linux apps that run anywhere https://appimage.org/ See also: https://www.rncbc.org/drupal/node/2683 Enjoy! - - - rncbc aka Rui Nuno Capela

2 weeks, 4 days

[music] Piece for flute and piano (with Ritual Notes)

by Jeanette C.

Hey hey, I have just released "A Moment of Passing", which my friend Ritual Notes and I wrote and performed together. The recording is a few months old, but I just got back my production environment. https://youtu.be/dmTR8Rm70sY My friend plays the flute, I play the piano. We did record it in two goes, since I don't have two headphones or anything. It's a sad little song, with a few sunnier moments and it came to be on the spur of the moment. There will be another song, which was properly composed, in two days time. Enjoy and best wishes, Jeanette -- * Website: http://juliencoder.de - for summer is a state of sound * Youtube: https://www.youtube.com/channel/UCMS4rfGrTwz8W7jhC1Jnv7g * Audiobombs: https://www.audiobombs.com/users/jeanette_c * GitHub: https://github.com/jeanette-c Make all the clouds disappear Put all your fears to rest <3 (Britney Spears)

2 weeks, 5 days

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Linux-audio-user