Linux-audio-user

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20684 discussions

by Athanasios Silis

you were absolutely right. I did not know pipewire-jack lacked the backends. So it appears that the latest auto-update reverted my settings - during my initial installation of ubuntu studio 24.04 I had switched from pipewire-jack to jackd+pulseaudio (using "ubuntustudio audio controls") . anyway it is indeed fixed. I wonder if there was any way that I could "see" that the pipewire-jack was selected other than the fact that the backends were missing. Thanks again for the reminder that helps me solve this. On Sun, Mar 9, 2025 at 11:32 AM David Kastrup <dak(a)gnu.org> wrote: > Athanasios Silis <athanasios.silis(a)gmail.com> writes: > > > Hi all, > > I am using ubuntu studio 24.04 and it looks like jackd2 has stopped > working > > on a jackd client that I am using: > > > > I used to start normally the jackd session as > > $ jackd -dnet -C 4 -P 8 > > > > but I've been seeing these messages since last night: > > jackdmp 1.9.21 > > [...] > > [W][02502.216661] default | [ control.c: 67 > > jackctl_server_create2()] not implemented 0x573493a90ec0 0x573493a91020 > > 0x573493a910f0 > > [W][02502.216855] default | [ control.c: 154 > > jackctl_server_get_parameters()] 0x57349bb68d10: not implemented > > [W][02502.216925] default | [ control.c: 142 > > jackctl_server_get_drivers_list()] 0x57349bb68d10: not implemented > > [W][02502.216966] default | [ control.c: 225 > > jackctl_driver_get_name()] 0x57349bb68cf0: not implemented > > *Unknown driver "net"* > > [W][02502.217019] default | [ control.c: 94 > > jackctl_server_destroy()] 0x57349bb68d10: not implemented > > > > I am mostly worried about this > > "unknown driver net" messages, but perhaps the warnings are also > relevant. > > > > Indeed something is changed and the backends have vanished: > > $ jackd --help > > [...] > > Available backends: > > [W][03817.946848] default | [ control.c: 233 > > jackctl_driver_get_type()] 0x5a35d9340cf0: not implemented > > [W][03817.946852] default | [ control.c: 225 > > jackctl_driver_get_name()] 0x5a35d9340cf0: not implemented > > dummy (slave) > > > > [W][03817.946857] default | [ control.c: 165 > > jackctl_server_get_internals_list()] 0x5a35d9340d10: not implemented > > Available internals: > > > > [W][03817.946863] default | [ control.c: 94 > > jackctl_server_destroy()] 0x5a35d9340d10: not implemented > > > > I found this topic https://linuxmusicians.com/viewtopic.php?t=19590 > where > > reinstalling jack in arch fixed their issue.. > > > > I tried the same as > > $ dpkg -l | grep jackd > > $ sudo apt install --reinstall jackd jackd2 jackd2-firewire > > libjack-jackd2-0 libjack-jackd2-dev > > > > but the issue persists. I assume some automatic update caused this but I > > wonder if anyone else has seen this and if you managed to fix it somehow. > > > > Thank you in advance for your help > > I don't think that this jack, actually. Instead it looks like the jack > emulation layer of pipewire. > > If you really need jack, try installing pulseaudio (which will supplant > pipewire but leave jack alone) as the Ubuntu default desktop sound > daemon. > > -- > David Kastrup >

9 months, 3 weeks

jackd suddenly stopped working

by Athanasios Silis

Hi all, I am using ubuntu studio 24.04 and it looks like jackd2 has stopped working on a jackd client that I am using: I used to start normally the jackd session as $ jackd -dnet -C 4 -P 8 but I've been seeing these messages since last night: jackdmp 1.9.21 [...] [W][02502.216661] default | [ control.c: 67 jackctl_server_create2()] not implemented 0x573493a90ec0 0x573493a91020 0x573493a910f0 [W][02502.216855] default | [ control.c: 154 jackctl_server_get_parameters()] 0x57349bb68d10: not implemented [W][02502.216925] default | [ control.c: 142 jackctl_server_get_drivers_list()] 0x57349bb68d10: not implemented [W][02502.216966] default | [ control.c: 225 jackctl_driver_get_name()] 0x57349bb68cf0: not implemented *Unknown driver "net"* [W][02502.217019] default | [ control.c: 94 jackctl_server_destroy()] 0x57349bb68d10: not implemented I am mostly worried about this "unknown driver net" messages, but perhaps the warnings are also relevant. Indeed something is changed and the backends have vanished: $ jackd --help [...] Available backends: [W][03817.946848] default | [ control.c: 233 jackctl_driver_get_type()] 0x5a35d9340cf0: not implemented [W][03817.946852] default | [ control.c: 225 jackctl_driver_get_name()] 0x5a35d9340cf0: not implemented dummy (slave) [W][03817.946857] default | [ control.c: 165 jackctl_server_get_internals_list()] 0x5a35d9340d10: not implemented Available internals: [W][03817.946863] default | [ control.c: 94 jackctl_server_destroy()] 0x5a35d9340d10: not implemented I found this topic https://linuxmusicians.com/viewtopic.php?t=19590 where reinstalling jack in arch fixed their issue.. I tried the same as $ dpkg -l | grep jackd $ sudo apt install --reinstall jackd jackd2 jackd2-firewire libjack-jackd2-0 libjack-jackd2-dev but the issue persists. I assume some automatic update caused this but I wonder if anyone else has seen this and if you managed to fix it somehow. Thank you in advance for your help

9 months, 3 weeks

extended CfP: SMC 2025, Jul 7-9 (Summer School), 10-12 (Conference/Concerts), MUMUTH/Kunstuni Graz

by IOhannes m zmoelnig

In case you have missed both the original deadline and our announcement for extending it: IEM (iem.at) and the SMC network (smcnetwork.org) extends its call for paper contributions to SMC, which will be held in Graz, consisting of a summer school between July 7th and 9th, and the conference/concerts as main event between July 10th and 12th at MUMUTH/Kunstuni Graz, 2025. The new submission deadline for papers is **March 12th 2025**. See <https://smc25.iem.at> for details; we chose "Auditory Landscapes" as a theme. IOhannes (for the Graz SMC25 team)

10 months

I've actually been making music again

by Will Godfrey

Yes I know that's a strange thing to do :p Anyway, this is the last track on my latest bandcamp album: https://willgodfrey.bandcamp.com/track/twixt-stars P.S. No prizes for guessing which synth I use for this! -- Will J Godfrey {apparently now an 'elderly'} https://willgodfrey.bandcamp.com/ http://yoshimi.github.io Say you have a poem and I have a tune. Exchange them and we can both have a poem, a tune, and a song.

10 months, 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

10 months, 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

10 months, 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

10 months, 2 weeks

Thank you to all of you that sing

by David W. Jones

Don't give up on singing <https://phys.org/news/2025-02-dont.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.

10 months, 3 weeks

[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)

10 months, 3 weeks

Jackd not exiting upon disconnecting usb card

by Peter P.

Hi list, I am running an Edirol UA-25 audio interface under jackd2. When I disconnect the device with jackd running, it will print ALSA: capture device disconnected JackAudioDriver::ProcessAsync: read error, stopping... Jack: JackPosixThread::ThreadHandler : exit but will not exit, forcing me to kill jackd from the terminal. Is this intentional behavior? Can I solve this problem and have jackd terminate? Thanks! Peter Here is the full console printout: $ jackd -v -t2000 -dalsa -r44100 -p512 -n2 -Xseq -D -Chw:UA25 -Phw:UA25 -i2 -o2 jackdmp 1.9.21 Copyright 2001-2005 Paul Davis and others. Copyright 2004-2016 Grame. Copyright 2016-2022 Filipe Coelho. jackdmp comes with ABSOLUTELY NO WARRANTY This is free software, and you are welcome to redistribute it under certain conditions; see the file COPYING for details JACK server starting in realtime mode with priority 10 self-connect-mode is "Don't restrict self connect requests" Jack: JackPosixThread::StartImp : create non RT thread Jack: JackPosixThread::ThreadHandler : start Jack: capture device hw:UA25 Jack: playback device hw:UA25 Jack: apparent rate = 44100 Jack: frames per period = 512 Jack: JackDriver::Open capture_driver_name = hw:UA25 Jack: JackDriver::Open playback_driver_name = hw:UA25 Jack: Check protocol client = 9 server = 9 Jack: JackEngine::ClientInternalOpen: name = system Jack: JackEngine::AllocateRefNum ref = 0 Jack: JackLinuxFutex::Allocate name = jack_sem.1000_default_system val = 0 Jack: JackEngine::NotifyAddClient: name = system Jack: JackGraphManager::SetBufferSize size = 512 Jack: JackConnectionManager::DirectConnect first: ref1 = 0 ref2 = 0 Jack: JackGraphManager::ConnectRefNum cur_index = 0 ref1 = 0 ref2 = 0 Jack: JackDriver::SetupDriverSync driver sem in flush mode audio_reservation_init Acquire audio card Audio2 creating alsa driver ... hw:UA25|hw:UA25|512|2|44100|2|2|nomon|swmeter|-|32bit configuring for 44100Hz, period = 512 frames (11.6 ms), buffer = 2 periods ALSA: final selected sample format for capture: 16bit little-endian ALSA: use 2 periods for capture ALSA: final selected sample format for playback: 16bit little-endian ALSA: use 2 periods for playback Jack: JackPosixThread::StartImp : create non RT thread Jack: JackSocketServerChannel::Open Jack: JackServerSocket::Bind : addr.sun_path /dev/shm/jack_default_1000_0 Jack: JackSocketServerChannel::BuildPoolTable size = 1 Jack: JackEngine::Open Jack: JackClientSocket::Connect : addr.sun_path /dev/shm/jack_default_1000_0 Jack: JackEngine::ClientInternalOpen: name = freewheel Jack: JackEngine::AllocateRefNum ref = 1 Jack: JackLinuxFutex::Allocate name = jack_sem.1000_default_freewheel val = 0 Jack: JackEngine::NotifyAddClient: name = freewheel Jack: JackDriver::ClientNotify ref = 1 driver = system name = freewheel notify = 0 Jack: JackDriver::ClientNotify ref = 0 driver = freewheel name = system notify = 0 Jack: JackConnectionManager::DirectConnect first: ref1 = 1 ref2 = 1 Jack: JackGraphManager::ConnectRefNum cur_index = 0 ref1 = 1 ref2 = 1 Jack: JackDriver::SetupDriverSync driver sem in flush mode Jack: JackGraphManager::SetBufferSize size = 512 Jack: JackAlsaDriver::Attach fBufferSize 512 fSampleRate 44100 Jack: JackEngine::PortRegister ref = 0 name = system:capture_1 type = 32 bit float mono audio flags = 22 buffer_size = 512 Jack: JackGraphManager::AllocatePortAux port_index = 1 name = system:capture_1 type = 32 bit float mono audio Jack: JackConnectionManager::AddOutputPort ref = 0 port = 1 Jack: JackEngine::ClientNotify: no callback for notification = 9 Jack: JackEngine::ClientNotify: no callback for notification = 9 Jack: JackAlsaDriver::Attach fCapturePortList[i] 1 Jack: JackEngine::PortRegister ref = 0 name = system:capture_2 type = 32 bit float mono audio flags = 22 buffer_size = 512 Jack: JackGraphManager::AllocatePortAux port_index = 2 name = system:capture_2 type = 32 bit float mono audio Jack: JackConnectionManager::AddOutputPort ref = 0 port = 2 Jack: JackEngine::ClientNotify: no callback for notification = 9 Jack: JackEngine::ClientNotify: no callback for notification = 9 Jack: JackAlsaDriver::Attach fCapturePortList[i] 2 Jack: JackEngine::PortRegister ref = 0 name = system:playback_1 type = 32 bit float mono audio flags = 21 buffer_size = 512 Jack: JackGraphManager::AllocatePortAux port_index = 3 name = system:playback_1 type = 32 bit float mono audio Jack: JackConnectionManager::AddInputPort ref = 0 port = 3 Jack: JackEngine::ClientNotify: no callback for notification = 9 Jack: JackEngine::ClientNotify: no callback for notification = 9 Jack: JackAlsaDriver::Attach fPlaybackPortList[i] 3 Jack: JackEngine::PortRegister ref = 0 name = system:playback_2 type = 32 bit float mono audio flags = 21 buffer_size = 512 Jack: JackGraphManager::AllocatePortAux port_index = 4 name = system:playback_2 type = 32 bit float mono audio Jack: JackConnectionManager::AddInputPort ref = 0 port = 4 Jack: JackEngine::ClientNotify: no callback for notification = 9 Jack: JackEngine::ClientNotify: no callback for notification = 9 Jack: JackAlsaDriver::Attach fPlaybackPortList[i] 4 Jack: Clock source : system clock via clock_gettime Jack: JackServer::Start Jack: JackThreadedDriver::Start Jack: JackPosixThread::StartImp : create non RT thread Jack: JackPosixThread::ThreadHandler : start Jack: JackThreadedDriver::Init real-time Jack: JackPosixThread::AcquireRealTimeImp priority = 10 Jack: JackPosixThread::StartImp : create non RT thread Jack: JackPosixThread::ThreadHandler : start Jack: JackSocketServerChannel::ClientCreate socket Jack: JackSocketServerChannel::BuildPoolTable size = 2 Jack: JackSocketServerChannel::BuildPoolTable fSocketTable i = 1 fd = 16 Jack: JackRequest::Notification Jack: JackDriver::ClientNotify ref = 1 driver = freewheel name = freewheel notify = 18 Jack: JackDriver::ClientNotify ref = 1 driver = freewheel name = freewheel notify = 18 Jack: JackDriver::ClientNotify ref = 1 driver = freewheel name = freewheel notify = 18 Jack: JackDriver::ClientNotify ref = 1 driver = freewheel name = freewheel notify = 18 Jack: JackEngine::ClientNotify: no callback for notification = 4 Jack: JackEngine::ClientNotify: no callback for notification = 4 (here I unplug the usb interface) ALSA: capture device disconnected JackAudioDriver::ProcessAsync: read error, stopping... Jack: JackPosixThread::ThreadHandler : exit (jackd keeps running)

10 months, 3 weeks

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Linux-audio-user