Linux-audio-dev

linux-audio-dev@lists.linuxaudio.org

3 participants
7535 discussions

by James Morris

Hi, Petri-Foo is a sampler for linux using JACK. It was originally a fork of the Specimen sampler project. A new version is now available to download from sourceforge. https://sourceforge.net/projects/petri-foo/files/petri-foo-0.1.4.tar.bz2 This release brings further cosmetic changes improving the overall look of Petri-Foo. The fan sliders have gone, so it must be time to mention the precision modifying shift and ctrl keypresses for the sliders. If you missed the 0.1.3 release, here's a quick rundown of the changes: * migrated from autotools to cmake * updated and slimmed-down PHAT replacement called Phin. * mousewheel waveform zooming * velocity range setting for patch * auto-preview (with optional resampling) in sample selector dialog * recoded deprecated gdk calls to use cairo. * lots and lots of bug fixes i've long since forgotten about Some say it's the successor to Specimen and that the two shouldn't co-exist. All I know is it's called Petri-Foo. http://petri-foo.sourceforge.net Cheers, James.

13 years, 7 months

[LAD] Firewire bus analysis - Digidesign 003 Rack

by Damien Zammit

Hi folks, I have done some firewire bus analysis on the 003 Rack and posted last year some of my findings on ffado.org wiki. inter Today I got back into it and managed to modify Clemens' snd-dice driver to activate the 003R and made a standalone driver to play out of 2 channels! It's a non standard protocol, because you have to send particular requests and wait for particular responses but I have documented as much as I can. Unfortunately during playback there are 2 outstanding issues: 1) There is extraneous low level noise when sound is routed through channel 1 or channel 18 (first and last pcm channel). When sound is routed into channel 1, noise is heard in channel 2 and channel 1 sounds normal. When sound is routed into channel 18, similar noise is heard in channel 1 but nothing else is heard. 2) I don't know why but the device spits out a request on the bus about 10 times per second which interrupts playback for very short intervals causing choppy playback. I had a similar problem when trying to make the 003R work under ffado. I have examined the behaviour of the device under windows and it does not generate these packets. Could it be the way the iso resources are being handled? I am allocating a tx and rx stream separately since without both, the device stops transmitting in under 2 seconds, while with this driver, it stays stable indefinitely. I could use some advice on where to look next. Damien

13 years, 7 months

[LAD] [ANN] IR: LV2 convolution reverb 1.2.2 & 1.3.2

by Tom Szilagyi

IR: LV2 Convolution Reverb http://factorial.hu/plugins/lv2/ir IR is a no-latency/low-latency, realtime, high performance signal convolver plugin especially for creating reverb effects. This is a much overdue maintenance release with two versions under the dual versioning scheme: 1.2.2 in the 1.2.x branch and 1.3.2 in the 1.3.x branch. From the ChangeLog: Version 1.2.2 and 1.3.2 - 2012.07.02 18:05 CEST This pair of versions contains the migration to use zita-convolver-3.x.x in place of zita-convolver-2.0.0. This change guarantees that there are no data overruns while running the plugin non-realtime (freewheeling / Ardour export). NOTE: please read the plugin's webpage if you are confused about the dual versioning of IR (1.2.x vs 1.3.x). Please see the website for further information regarding versions, installation, caveats & usage. Thanks, Tom

13 years, 7 months

[LAD] APODIO FREE LIBRE OPERATING SYSTEM FOR THE ARTISTS : WE NEED YOU!

by APO33

From 9th to 20th of July APODIO 9 - SUMMER OPEN SESSION Beyond workshop, build collectively your own libre tools! Come and participate to the next Gnu/Linux APODIO FreeLibre operating system http://www.apodio.org/ based on Xubuntu 12.04 LTS (for a stable version we hope) APODIO NEEDS YOU!!! -programmers -king/queen of compilation -beta-tester -documentation and manual -graphics -promotion :::::::::::::::::::::::::: minimal requirement : -bring a computer or tell us in advance, we could find something then. -a minimum of knowledge of Gnu/Linux operating system -housing in Nantes, we should be able to find you something if needed contact: orga(a)apo33.org APO33 RESEARCH LAB /// 17 rue Paul Bellamy 44/Nantes-FR //////////////////////////////////////////////////////////////////////////////// APO33 APO33, as an interdisciplinary laboratory drawing on the artistic and technological fields, fosters various collective projects associating research, experimentation and social intervention. In the continuity of the dynamics that has been opened by the free software movement, apo33 is structured as a modular space, initiating collaborative projects and creative processes, as well as exploring new artistic and creative modes of production and diffusion. http://www.apo33.org/ info(a)apo33.org 17 rue Paul Bellamy 44000 Nantes France +33 02 51 89 47 16 APO33/ Plateforme intermédia La Fabrique - plateforme Intermédia Boulevard Léon Bureau 44000 Nantes mail : plateforme(a)apo33.org ///////////////////////////////////////////////////////////////////////////// -- APO33 space of research and experimentation http://www.apo33.org info(a)apo33.org

13 years, 7 months

[LAD] [ANN] MusE 2.0 released

by Robert Jonsson

Hello everybody! Finally it has happened, nearly two years from the last stable release we are ready to present to you the final MusE 2.0 version. A lot has happened and changed, still the migration from 1.1 to 2.0 should be quite easy and definitely worth it. The big changes since 1.1 are as follows: * Moved to qt4, this affects the visuals and potentially improved portability * Graphical automation in the arranger * A new score editor * MusE now defaults to using midi through Jack, -A enables native alsa support * New style MDI gui with a bunch of configuration options to satisfy all tastes * Redone midi editing tool dialogs with lots of new functionality * Lots and lots and lots of internal small and big changes to improve stability, speed and functionality * PSIIF support (support for: probably something important I forgot) A much condensed list of changes since the last beta are as follows: - Sync fix: MusE now records tempo changes from externally clocked midi. - Finally! Audio controller playback has smooooth frame resolution even with large audio buffers. - Feature: Midi control of audio paramters. - Lots of automation improvements - Switched to use JACK midi - Added: -A switch: "Force inclusion of ALSA midi even if using Jack". - Lots of leaks removed - Added colorhints to iR and oR routing buttons - Templates: File dialog: Lots of changes - Lots of widget focus fixes - Allow loading of DSSI synths in LADSPA browser. - Midi editors: Added "Delta Mode" button to Note Info toolbar. The full changelog is available at: http://lmuse.svn.sourceforge.net/viewvc/lmuse/tags/muse_2_0/ChangeLog?revis… Find the download at: https://sourceforge.net/projects/lmuse/files/ Also a big thanks to everybody who has helped translate, find and fix bugs and otherwise been lending a helpful hand! Happy creating/recording/playing/arranging with MusE! The MusE Team ps. And stay tuned for the inevitable 2.0.1 release ;) ds. -------------------------- MusE 2.0rc2 Hello everybody and a happy new year! The final release is now in sight, here is one (hopefully) final release candidate, rc2. Quite a bit of polish has been done in the gui and some under the hood fixes for various audio and midi data handling. Crunched list of improvements: - New super-glue feature - Global Cut: Fixed crashes with markers. Re-did marker section in structure.cpp:adjustGlobalLists(). - Fixed drag and drop cloning parts - bad reference count in PartCanvas::moveItem() - File Open dialog: Start with song data and configuration. - New 'Duplicate tracks' Edit action, and dialog. Post-cleanups. TODO: Copy plugins, fix copying parts - Audio strip prefader now controls audio. - Fixed: Annoying ladspa browser issues. Leak: Dialog was not destroyed. Sorting. Save complete state - Fixed long-time graphics corruption issue: Large areas of desktop erased to background. - New: Midi routing matrix! No more clumsy routing menu items. Currently for Midi Track iR and Audio Input iR solo routes - Improved: Midi ports list now fills automatically at start - List only writeable ports in track list output port column and midi track info combo box. - Jack midi devices now save an additional required rwFlags xml tag. - Midi ports dialog: Auto dis/connect the stated default channels when selecting a device. - Complete Spanish translation from Cristian Ramos - Improved: Project save dialog: Now has quick save as Template. Separate project/result paths shown. Editable project folder. - Added: Project directory in global settings dialog. - Changed: In File Dialog, 'User' initial prepend path changed to muse ./config path. So user files + templates are shown. - Fixed: Template directory changed from /home/templates to muse config directory. Support for old files included. - Fixed: DSSI synth audio inputs. This means dssi vocoders, samplers etc. should work now - Re-write: Fixed audio mixing, meter processing. Audio, and meters, for all mono <-> stereo route combinations work sensibly now. - Window titles of ladspa and dssi plugins now have track name prefix to help identify them. - Added "Unused Devices" menu to the arranger's port popupmenu for rapid device selection The full changelog is available at: http://lmuse.svn.sourceforge.net/viewvc/lmuse/branches/release_2_0/ChangeLo… Find the download at: https://sourceforge.net/projects/lmuse/files/ Please report any findings either to one of the following Mailinglists: http://muse-sequencer.org/index.php/Muse_ml The bug tracker at sourceforge: http://sourceforge.net/tracker/?group_id=93414 The forum: http://sourceforge.net/apps/phpbb/lmuse/ Have fun! The MusE Team -------------------------------------------------------------- MusE 2.0rc1 Hello everybody, Getting close to the new year, better hurry with the christmas shopping! Not that this has anything to do with new MusE releases even though one could consider it a christmas present. :) Since the last beta relentless bugfixing has taken place and lots and lots of feature improvements in preparation for releasing 2.0 sometime soon (tm). Crunched list of improvements: - added sane configuration defaults to muse - added MDI-like and borland-like user interface - improved copy paste with paste dialog - Lots of new internal namespaces e.g. MusEArranger and MusEMixer - gui widgets with new look, especially in mixer - score editor improvements - reworked midi tools - Popup menus: If stay-open mode, space triggers item and double-click simulates return - Changed midi track info patch popup behaviour. Now stays open for auditioning patches - Changed editor 'ctrl' controller popups. Split instrument/other (+ common controls!) + show ctrl numbers - Changed mouse wheel behaviour in graphical editors except the score editor - Added dialog to remove unused wave files - Changed default imported midi song type to GM + lots more bugs squashed, improvements, code reorganizations The full changelog is available at: http://lmuse.svn.sourceforge.net/viewvc/lmuse/branches/release_2_0/ChangeLo… Find the download at: https://sourceforge.net/projects/lmuse/files/ Have fun! The MusE Team -------------------------------------------------------------- MusE2beta2 - second beta of MusE2 built on Qt4 Changes: - One rather nasty bug where plugins did not restore their settings on song load was fixed. Also please note that this release can be installed along side with muse1.1. The binary is called muse2. Have fun and please report any findings to the mailinglist or the forum at: https://sourceforge.net/apps/phpbb/lmuse/ The MusE Team ---------------------------------- Hello everybody, Time for another mark in the MusE bark. We are pleased to announce that MusE 2.0beta is currently available for download and as per usual a number of fixes and new additions were added along the way. MusE now sports a score editor (again! it's been a long time) and lots of gui love, not to speak of all under-the-hood improvements and optimizations. In it's current state MusE should be quite usable though there is definitely going to be more fixes. Here is a selection of changes in no particular order, see the ChangeLog linked below for the complete unedited truth. - Feedback parameters added to LADSPA GUIs - Added new score editor - Song loading stability fixes, some crashes removed - Improved ladspa and dssi controller responsiveness - Lots of graphical improvements to arranger, part drawing, gradients, text drawing - Added more routing choices: Synth to Wave track, Wave track to Wave track etc - DSSI synths can now show generic LADSPA GUI as well as native - Improvements to midi-only audio-stub (dummy audio) - More shortcuts added to Arranger - Support for custom LADSPA DSSI GUIs, such as those generated by FLAM http://vagar.org/code/projects/flam. - Fixed problems with midi event list editor, e.g. problems selecting items while pianroll open. - Added: Pianoroll controller graph items can now be selected/highlighted. - Parts are now drawn while recording and also midi events visible in the parts - Added new edit mode CURSOR MODE in drum editor - added simple part drawing while recording, does not draw events or waveform - detect samplerate and warn if samplerate isn't same in song and system - Added show/hide track-types buttons to arranger - Added progress dialog for loading projects - Fixed drag & drop for plugins and drag presets from outside muse into a plugin - Support for multiple drops of files to arranger, e.g easy import of a bunch of wave files - Fixed Organ synth crashing - Persisten store of toolbar locations for main window and editors - Fixed MusE failing with some non-RT kernels - added cut/copy/paste and keyboard shortcuts to wave editor - fixed regression with Bounce to File and Bounce to Track - Increased playback MidiFifo size from 512 to 2100, to accommodate large block sends, - Fixed Jack Midi 'lost event' messages due to full buffers. - fixed panic button - Completed soloing system (after 4 years). Support chaining Midi Port/Audio Out -> Audio In - Support for editing audio automation on tracks - Added right-click on track ARM buttons, now enables/disables all tracks of it's kind - Added transport position "Shift + +/-" keys, for no snapping - fixed deicsonze synth patch loading - Added default velocity controllers to pianoroll and drum edit - Appearance part color names now can now be edited - Mixer label colours can now be edited in the appearance settings - more wallpapers - Fixed focus stealing of transport - new project creation dialog - Midi track info added to pianoroll - Added fancy background selection widget with live preview to Appearance Settings The full changelog is available at: http://lmuse.svn.sourceforge.net/viewvc/lmuse/trunk/muse2/ChangeLog?revisio… Find the download at: https://sourceforge.net/projects/lmuse/files/ Have fun! The MusE Team -------------------------------------------------------------- Hello everybody, Time for another mark in the MusE bark. We are pleased to announce that MusE 2.0beta is currently available for download and as per usual a number of fixes and new additions were added along the way. MusE now sports a score editor (again! it's been a long time) and lots of gui love, not to speak of all under-the-hood improvements and optimizations. In it's current state MusE should be quite usable though there is definitely going to be more fixes. Here is a selection of changes in no particular order, see the ChangeLog linked below for the complete unedited truth. - Feedback parameters added to LADSPA GUIs - Added new score editor - Song loading stability fixes, some crashes removed - Improved ladspa and dssi controller responsiveness - Lots of graphical improvements to arranger, part drawing, gradients, text drawing - Added more routing choices: Synth to Wave track, Wave track to Wave track etc - DSSI synths can now show generic LADSPA GUI as well as native - Improvements to midi-only audio-stub (dummy audio) - More shortcuts added to Arranger - Support for custom LADSPA DSSI GUIs, such as those generated by FLAM http://vagar.org/code/projects/flam. - Fixed problems with midi event list editor, e.g. problems selecting items while pianroll open. - Added: Pianoroll controller graph items can now be selected/highlighted. - Parts are now drawn while recording and also midi events visible in the parts - Added new edit mode CURSOR MODE in drum editor - added simple part drawing while recording, does not draw events or waveform - detect samplerate and warn if samplerate isn't same in song and system - Added show/hide track-types buttons to arranger - Added progress dialog for loading projects - Fixed drag & drop for plugins and drag presets from outside muse into a plugin - Support for multiple drops of files to arranger, e.g easy import of a bunch of wave files - Fixed Organ synth crashing - Persisten store of toolbar locations for main window and editors - Fixed MusE failing with some non-RT kernels - added cut/copy/paste and keyboard shortcuts to wave editor - fixed regression with Bounce to File and Bounce to Track - Increased playback MidiFifo size from 512 to 2100, to accommodate large block sends, - Fixed Jack Midi 'lost event' messages due to full buffers. - fixed panic button - Completed soloing system (after 4 years). Support chaining Midi Port/Audio Out -> Audio In - Support for editing audio automation on tracks - Added right-click on track ARM buttons, now enables/disables all tracks of it's kind - Added transport position "Shift + +/-" keys, for no snapping - fixed deicsonze synth patch loading - Added default velocity controllers to pianoroll and drum edit - Appearance part color names now can now be edited - Mixer label colours can now be edited in the appearance settings - more wallpapers - Fixed focus stealing of transport - new project creation dialog - Midi track info added to pianoroll - Added fancy background selection widget with live preview to Appearance Settings The full changelog is available at: http://lmuse.svn.sourceforge.net/viewvc/lmuse/trunk/muse2/ChangeLog?revisio… Find the download at: https://sourceforge.net/projects/lmuse/files/ Have fun! The MusE Team -------------------------------------------------------------- MusE 2.0alpha Hello everybody, we have a present for you, a new release of MusE. The alpha indicates this is an early version so it's mainly - a teaser to spread the word. - an early adopters build. - to welcome developers who want to port MusE to other platforms. MusE has now been completely ported to the Qt4 architecture and we (mainly Tim and Orcan) are busy to make it even better than before, lots of gui stuff being reworked. MusE now also sports a new version of the DeicsOnze, DX11 emulating softsynth, up from version 0.2 to 1.0. The homepage has received a new look that we hope will give a better indication of what MusE is and does. Do visit http://muse-sequencer.org. The full changelog is available at: http://lmuse.svn.sourceforge.net/viewvc/lmuse/trunk/muse2/ChangeLog?revisio… Find the download at: https://sourceforge.net/projects/lmuse/files/ Happy Holidays! The MusE Team

13 years, 7 months

[LAD] Lisalo 1.0 - LinuxSampler Loader (Working File for Sonatina Symphonic Orchestra included)

by Nils

This is the Release of Lisalo 1.0 Grab it here, no installing required: git clone git://github.com/nilsgey/Lisalo.git Lisalo - Linux Sampler Loader Linux Sampler Loader is a command line program that loads entire directories of sample files or takes instructions from a meta .lsl file with relative paths to samples. This program exists because you can't share linuxsampler lscp files or even move files around on your own disk. Lscp files only work with absolute paths and are too low level anyway. Now you can quickly and easily load sampled instruments without even starting a GUI. The lsl files are very simple, see example.lsl, and can be shipped around with your sfz sample package like the Sonatina Symphonic Orchestra (lsl file already included in this release) Version 1.0 Licensed under GPLv3 by Nils Gey, June 2012 Only dependencies are Python and Linuxsampler. https://github.com/nilsgey/Lisalo info(a)laborejo.org irc.freenode.org #laborejo

13 years, 7 months

[LAD] Look for volunteers for Free Music Instrument Tuner

by Gilles Degottex

Hi all, I created this software in 2004, but I can't develop it anymore, maintain it or even answer the mails I receive about it. http://home.gna.org/fmit http://gna.org/projects/fmit I'm therefore looking for volunteer(s) to recover the project: manage it, maintain it, develop it if motivated, etc. The current state of the software is fairly good, I think. It has been updated to Qt4 last year. I think it's quite stable because most of the mails I receive from users are about how to select the recording channel in their OS mixer ... FMIT is accessible from Ubuntu repositories (universe) and was accessible under Fedora but they removed it since I can't maintain it anymore. Please look at the website for more details and screenshots. Besides the fact that I want it to stay open-source, I don't have particular wish about its future (hmmm, stay simple and expandable maybe). So, if someone is interested, please contact me. All the best, Gilles -- FORTH - ICS Vasilika Vouton, P.O. Box 1385 GR 71110 Heraklion, Crete, Greece Mobile: +30 6942 207403 Work: +30 2810 391580

13 years, 7 months

[LAD] [ANN] Praxis LIVE build:120620

by Neil C Smith

Hi All, A new build of Praxis LIVE makes its way into the light. Highlights include new audio components and audio API improvements, cross-platform video capture (yes, Linux has always been there!), and live GLSL coding. Website - http://code.google.com/p/praxis Release notes - http://code.google.com/p/praxis/wiki/ReleaseNotes Blog post - http://praxisintermedia.wordpress.com/2012/06/21/praxis-live-build120620/ Praxis is a Java-based modular framework for live creative play with video, images, audio, and other media. Its primary focus is on the easy development of generative and interactive media installations, as well as live performance. Praxis LIVE is a graphical, patcher-style interface for developing Praxis projects 'on the fly'. Praxis is developed by UK Artist and Technologist Neil C Smith. It is partly inspired by projects such as AudioMulch, Bidule and Isadora, and to a lesser extent Pure Data and Processing; however, it is not intended to be a clone of any of them. Thanks for listening, best wishes, Neil -- Neil C Smith Artist : Technologist : Adviser http://neilcsmith.net Praxis - open-source intermedia system for live creative play http://code.google.com/p/praxis OpenEye - specialist web solutions for the cultural, education, charitable and local government sectors. http://openeye.info

13 years, 7 months

[LAD] CueFrog.pd: theatre cue player framework initial release

by Jörn Nettingsmeier

hi everyone! thanks to the excellent pd documentation out there and lots of hand holding by friendly pd gurus on this list and elsewhere, here's my humble take at creating a theatre cue player with pd that does what i need... all the heavy lifting is done by august black's excellent readanysf~, thanks for making this tool available! CueFrog is designed to be multi-instance capable, so you can create as many decks as your machine can handle, and makes use of lots of send/receive ports to simulate some kind of object-oriented encapsulation stuff, based on my (limited) understanding of a model/view/controller paradigm. grab it: http://stackingdwarves.net/public_stuff/software/CueFrog/CueFrog-0.0.2.tar.… it's documented, so you should get it going in no time. i'm sure there are many quirks there, and i found out it's very easy to create race conditions in pd, so no warranties :) comments and suggestions for improvements are most welcome. i have a vbap-based panning automation in the works (which has already been used live at a theatre festival), but the code is in oh-my-good-tomorrow-is-dress-rehearsal shape, so forgive me for withholding it another month or so. and before you ask: frogs are cute. and when the director makes me jump, i need tools that jump along :-D best, jörn -- Jörn Nettingsmeier Lortzingstr. 11, 45128 Essen, Tel. +49 177 7937487 Meister für Veranstaltungstechnik (Bühne/Studio) Tonmeister VDT http://stackingdwarves.net

13 years, 7 months

[LAD] ALSA multi plugin and JACK xrun callbacks

by bart＠magnetophon.nl

Hi Everybody, My name is Bart, this is my first post here, though some have met me on IRC. Thanks for making Linux audio what it is! I started using Linux in 2004 with DeMuDi, and have never looked back. I'm trying to get my pcm_multi to work without with jackd. Some of you seem to have got this down, with or without "ghost xruns". Jörn seems to imply in the quoted thread that tschack is the answer, but it gives me the most xruns of all jack implementations. Who has got this working? Who want to help me get to the bottom of this? Google has been a great help so far, but I'm not sure what to try or what to google anymore. :( So far I've tried: *jackdmp1.9.9 *jackd1 (1:0.121.3+20120418git75e3e20b-2) *http://nedko.arnaudov.name/soft/jack/dbus/jack-audio-connection-kit-dbus-0.121.3.tar.gz *https://github.com/adiknoth/tschack.git All tested with the 3 kernels mentioned below. The nedko jack with the avlinux kernel sometimes goes without xruns for quite a long while, but sometimes gives lots of them. I haven't found the pattern behind it yet. My system is fully tuned, according to realTimeConfigQuickScan.pl the only exceptions: cat: /sys/devices/system/cpu/cpu3/cpufreq/scaling_governor: No such file or directory Checking CPU Governors... CPU 0: '' CPU 1: '' CPU 2: '' CPU 3: '' - not good I assume this is because my cpu's are running full speed. Kernel with Real-Time Preemption... not found - not good Checking if kernel system timer is set to 1000 hz... not found - not good But I'm running 3.2.0-2-rt-686-pae #1 SMP PREEMPT RT Fri Jun 1 20:28:43 UTC 2012 i686 GNU/Linux. I've also tried linux-image-3.0.32-avl-8 from avlinux, debian 3.2.0-2 vanilla. Here is my .asoundrc: https://github.com/StudioDotfiles/DotRepo/blob/master/asoundrc I'm runing jack like this: jackd -d alsa -r 44100 -p 4096 -d rme9636_64 The two rme9636 soundcards are on their own irq's, with priorities just below the timers. Jack with just one card works like a charm. Is there any other info needed? Thanks a lot, Bart. On 01/14/2011 11:12 PM, Jörn Nettingsmeier wrote: > On 01/14/2011 10:39 PM, Jörn Nettingsmeier wrote: > >> i had it crash once when loading a really demanding session, but with >> another average ardour project, it has now played fine and without >> glitches for 10 minutes or so, while the xrun count goes through the roof. > > alas. i spoke to soon: > > after i added a 6x1 convolver and an ambdec instance > jack2 bails out reproducibly after a couple minutes more, with a > "floating point exception". so more testing. > > meanwhile, i'd like to know what these xruns are, and i wouldn't be too > surprised if the eventual crash is actually related to the message > buffer or some internal error counter wrapping... jack2 gets nervous when i use a session with four jconvolver instances: JackPosixMutex::Unlock res = 1 Unknown request 4294967295 jackd: ../common/JackGraphManager.cpp:45: void Jack::JackGraphManager::AssertPort(jack_port_id_t): Assertion `port_index < fPortMax' failed. Aborted the cpu is not maxed out, afaics. tschack handles this scenario just fine, and it doesn't spew error messages on the console. if i monitor it in qjackctl, the xrun count increases at the usual rate, though. btw: qjackctl becomes a major cpu burden in this pathological case. lookes like it's the error messages. i've seen it at up to 40% of one core.

13 years, 7 months

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Linux-audio-dev