JackAudio May 2021

jackaudio@lists.linuxaudio.org

5 participants
5 discussions

Problem with jack transport between VM host and VM guest

by Stephan Auerochs

Hi, I'm using jack for years with my Focusrite Firewire device, formerly with Ubuntu Studio, now with Parrot Home. Recently I changed my DAW from Windows to Linux, using Ardour and Bitwig. For my old Windows VST plugins, which do not run with Wine, I use a QEMU/KVM virtual machine with Win7. To connect Host machine and VM, I run jack_load netmanager on the host and jackd -dnet -P12 -C2 -i1 -o1 -l1 in the VM. First they could not connect, but I suspect jack_load netmanager to listen only to the main network device eth0, but not the VM's network device virbr0. I found a workaround with smcroute; I configured it so it reroutes the Multicast messages from virbr0 to eth0. This solved the problem. Now I can connect the VM in/outs with qjackctl on the host, and I can play the Win7 VST plugins, as if they are running in Linux; perfect! But a problem with jack transport appeared: If the VM is not running, jack transport on the host is working as expected; click on the play button in qjackctl, and the counter runs; click again and the counter stops. If the VM is running, there is a delay of about 5 seconds from click on the play button, and the start of the counter. Stopping the transport works immediately. So this makes recording difficult. Qjackctl in the VM does not show jack transport running/stopping anyway; it can be started/stopped independently. With verbose messages on, this message from the host jackd appears regularly, no matter which transport status: Jack: CatchHost fd = 74 err = Resource temporarily unavailable After click on play button, but counter not running, repeatedly: Jack: JackNetMasterManager::SyncCallback returns 'false' Jack: CheckAllRolling ref = 8 is not rolling When counter runs, repeatedly: Jack: JackNetMasterManager::SyncCallback returns 'false' I assume that there exists still a network related mismatch between jackd on host and jackd in the VM, but I was not able to identify it. So I need some advice about jack transport and net mode. Btw, an option for jack_load netmanager would be nice, telling on which network device to listen. So people get aware of this case and can solve it without smcroute. Thanks, S.Auerochs

4 years

Jack client for APCmini

by Karsten

Dear all, I have written a jack client that uses an APCmini as a mixer and provides eight inputs/outputs and eight VU meters through it. CUE, PFL and transport control are also provided. I would like to check the code into git - what do I have to do ? -- Kindly Regards Karsten aka Tuxtrainer "Intelligence should be used for the benefit of humanity."

4 years, 1 month

JACK and Reavolution / SpatRevolution "Cannot connect, err = 5"

by Christian Alpen

4 years, 1 month

Some questions on JACK and 'net', 'jack_load netmanager', QJackCtl

by Christian Alpen

4 years, 1 month

[ANN] The QStuff* Spring'21 Release batch #1

by Rui Nuno Capela

Hi everybody, The first batch of the so called 'QStuff*' is springing out: QjackCtl [1], Qsynth [2], Qsampler [3], QXGEdit [4], QmidiCtl [5] and QmidiNet [6], all bumping to **version 0.9.3** for the (northern) Spring'21 season, rejoice! ** QjackCtl - JACK Audio Connection Kit Qt GUI Interface [1] ** QjackCtl 0.9.3 (spring'21) is released! QjackCtl is an aged yet modern, not so 'simple' anymore, Qt [7] application to control the JACK [8] sound server, for the Linux Audio [12] infrastructure. 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-0.9.3.tar.gz - source package: https://download.sf.net/qjackctl/qjackctl-0.9.3-47.rncbc.suse.src.rpm - binary packages: https://download.sf.net/qjackctl/qjackctl-0.9.3-47.rncbc.suse.x86_64.rpm - AppImage [20] package: https://download.sf.net/qjackctl/qjackctl-0.9.3-47.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://bitbucket.com/rncbc/qjackctl.git Change-log: - Graph connection lines drop-shadow eye-candy has been optimized, improving a lot on moving highly-connected nodes, especially the ones with plenty of backward-curved connections. - All packaging builds switching to CMake. [21] - Fixed default preset/aliases switching and reloading when entering pure-client mode (ie. "Active" status). ** Qsynth - A fluidsynth Qt GUI Interface [2] ** Qsynth 0.9.3 (spring'21) is released! Qsynth is a FluidSynth [10] GUI front-end application written in C++ around the Qt framework [7] using Qt Designer. Website: https://qsynth.sourceforge.io http://qsynth.sourceforge.net Project page: https://sourceforge.net/projects/qsynth Downloads: https://sourceforge.net/projects/qsynth/files - source tarball: https://download.sf.net/qsynth/qsynth-0.9.3.tar.gz - source package: https://download.sf.net/qsynth/qsynth-0.9.3-47.rncbc.suse.src.rpm - binary packages: https://download.sf.net/qsynth/qsynth-0.9.3-47.rncbc.suse.x86_64.rpm - AppImage [20] package: https://download.sf.net/qsynth/qsynth-0.9.3-47.x86_64.AppImage - Win64 and macOS packages (thanks again to Pedro Lopez-Cabanillas): https://download.sf.net/qsynth/qsynth-0.9.3-47.win-x64-setup.exe https://download.sf.net/qsynth/qsynth-0.9.3-47.mac-x64.dmg Git repos: https://git.code.sf.net/p/qsynth/code https://github.com/rncbc/qsynth.git https://gitlab.com/rncbc/qsynth.git https://bitbucket.com/rncbc/qsynth.git Change-log: - New Setup/Audio/WASAPI Exclusive Mode option added. - Fix for Windows runtime error (assertion failed) when compiled with MSVC (by Pedro Lopez-Cabanillas). - New Setup/MIDI/Auto Connect MIDI inputs option added. - Fix deprecated Reverb/Chorus API (FluidSynth >= 2.2.0). - All packaging builds switching to CMake. [21] ** Qsampler - A LinuxSampler Qt GUI Interface [3] ** Qsampler 0.9.3 (spring'21) is released! Qsampler is a LinuxSampler [11] GUI front-end application written in C++ around the Qt framework [7] using Qt Designer. Website: https://qsampler.sourceforge.io http://qsampler.sourceforge.net Project page: https://sourceforge.net/projects/qsampler Downloads: https://sourceforge.net/projects/qsampler/files - source tarballs: https://download.sf.net/qsampler/qsampler-0.9.3.tar.gz https://download.sf.net/qsampler/liblscp-0.9.3.tar.gz - source packages: https://download.sf.net/qsampler/qsampler-0.9.3-47.rncbc.suse.src.rpm https://download.sf.net/qsampler/liblscp-0.9.3-47.rncbc.suse.src.rpm - binary packages: https://download.sf.net/qsampler/qsampler-0.9.3-47.rncbc.suse.x86_64.rpm https://download.sf.net/qsampler/liblscp6-0.9.3-47.rncbc.suse.x86_64.rpm https://download.sf.net/qsampler/liblscp-devel-0.9.3-47.rncbc.suse.x86_64.r… - AppImage [20] package: https://download.sf.net/qsampler/qsampler-0.9.3-47.x86_64.AppImage Git repos: https://git.code.sf.net/p/qsampler/code https://github.com/rncbc/qsampler.git https://gitlab.com/rncbc/qsampler.git https://bitbucket.com/rncbc/qsampler.git https://git.code.sf.net/p/qsampler/liblscp https://github.com/rncbc/liblscp.git https://gitlab.com/rncbc/liblscp.git https://bitbucket.com/rncbc/liblscp.git Change-log: - All packaging builds switching to CMake. [21] ** QXGEdit - A Qt XG Editor [4] ** QXGEdit 0.9.3 (spring'21) is released! QXGEdit is a live XG instrument editor, specialized on editing MIDI System Exclusive files (.syx) for the Yamaha DB50XG [14] and thus probably a baseline for many other XG devices. Website: https://qxgedit.sourceforge.io http://qxgedit.sourceforge.net Project page: https://sourceforge.net/projects/qxgedit Downloads: https://sourceforge.net/projects/qxgedit/files - source tarball: https://download.sf.net/qxgedit/qxgedit-0.9.3.tar.gz - source package: https://download.sf.net/qxgedit/qxgedit-0.9.3-37.rncbc.suse.src.rpm - binary packages: https://download.sf.net/qxgedit/qxgedit-0.9.3-37.rncbc.suse.x86_64.rpm - AppImage [20] package: https://download.sf.net/qxgedit/qxgedit-0.9.3-37.x86_64.AppImage Git repos: https://git.code.sf.net/p/qxgedit/code https://github.com/rncbc/qxgedit.git https://gitlab.com/rncbc/qxgedit.git https://bitbucket.com/rncbc/qxgedit.git Change-log: - All packaging builds switching to CMake. [21] ** QmidiCtl - A MIDI Remote Controller via UDP/IP Multicast [5] ** QmidiCtl 0.9.3 (spring'21) is released! QmidiCtl [5] is a MIDI remote controller application that sends MIDI data over the network, using UDP/IP multicast. Inspired by multimidicast [15] and designed to be compatible with ipMIDI [15] for Windows. QmidiCtl [5] was long ago designed for the Maemo [17] enabled handheld devices, namely the late Nokia N900 [18] and promoted to the Maemo Package [18] repositories. Nevertheless, QmidiCtl [5] may still be found effective as a regular desktop application and recently as an Android application as well. Website: https://qmidictl.sourceforge.io http://qmidictl.sourceforge.net Project page: https://sourceforge.net/projects/qmidictl Downloads: https://sourceforge.net/projects/qmidictl/files - source tarball: https://download.sf.net/qmidictl/qmidictl-0.9.3.tar.gz - source package: https://download.sf.net/qmidictl/qmidictl-0.9.3-27.rncbc.suse.src.rpm - binary packages: https://download.sf.net/qmidictl/qmidictl-0.9.3-27.rncbc.suse.x86_64.rpm - AppImage [20] package: https://download.sf.net/qmidictl/qmidictl-0.9.3-27.x86_64.AppImage - Android package: https://download.sf.net/qmidictl/qmidictl-0.9.3-27.aab https://play.google.com/store/apps/details?id=org.rncbc.qmidictl Git repos: https://git.code.sf.net/p/qmidictl/code https://github.com/rncbc/qmidictl.git https://gitlab.com/rncbc/qmidictl.git https://bitbucket.com/rncbc/qmidictl.git Change-log: - All packaging builds switching to CMake. [21] ** QmidiNet - A MIDI Network Gateway via UDP/IP Multicast [6] ** QmidiNet 0.9.3 (spring'21) is released! QmidiNet is a MIDI network gateway application that sends and receives MIDI data (ALSA-MIDI [9] and JACK-MIDI [8]) over the network, using UDP/IP multicast. Inspired by multimidicast [15] and designed to be compatible with ipMIDI [16] for Windows. Website: https://qmidinet.sourceforge.io http://qmidinet.sourceforge.net Project page: https://sourceforge.net/projects/qmidinet Downloads: https://sourceforge.net/projects/qmidinet/files - source tarball: https://download.sf.net/qmidinet/qmidinet-0.9.3.tar.gz - source package: https://download.sf.net/qmidinet/qmidinet-0.9.3-27.rncbc.suse.src.rpm - binary packages: https://download.sf.net/qmidinet/qmidinet-0.9.3-27.rncbc.suse.x86_64.rpm - AppImage [20] package: https://download.sf.net/qmidinet/qmidinet-0.9.3-27.x86_64.AppImage Git repos: https://git.code.sf.net/p/qmidinet/code https://github.com/rncbc/qmidinet.git https://gitlab.com/rncbc/qmidinet.git https://bitbucket.com/rncbc/qmidinet.git Change-log: - All packaging builds switching to CMake. [21] License: All of the Qstuff* are free, open-source Linux Audio [11] software, distributed under the terms of the GNU General Public License (GPL) version 2 or later [12]. References: [1] QjackCtl - A JACK Audio Connection Kit Qt GUI Interface https://qjackctl.sourceforge.io [2] Qsynth - A fluidsynth Qt GUI Interface https://qsynth.sourceforge.io [3] Qsampler - A LinuxSampler Qt GUI Interface https://qsampler.sourceforge.io [4] QXGEdit - A Qt XG Editor https://qxgedit.sourceforge.io [5] QmidiCtl - A MIDI Remote Controller via UDP/IP Multicast https://qmidictl.sourceforge.io [6] QmidiNet - A MIDI Network Gateway via UDP/IP Multicast https://qmidinet.sourceforge.io [7] Qt framework, C++ class library and tools for cross-platform application and UI development https://qt.io/ [8] JACK Audio Connection Kit https://jackaudio.org [9] ALSA, Advanced Linux Sound Architecture https://www.alsa-project.org/ [10] FluidSynth - A SoundFont Synthesizer A real-time software synthesizer based on SoundFont 2 specifications https://www.fluidsynth.org [11] LinuxSampler - The Linux Sampler Project A modular, streaming capable, realtime audio sampler https://www.linuxsampler.org [12] Linux Audio consortium of libre software for audio-related work https://linuxaudio.org [13] GPL - GNU General Public License https://www.gnu.org/copyleft/gpl.html [14] Yamaha DB50XG (https://web.archive.org/web/20150607065739/) http://www.soundonsound.com/sos/1996_articles/may96/yamahadb50xg.html [15] multimidicast - sends and receives MIDI from ALSA sequencers over network https://llg.cubic.org/tools/multimidicast [16] ipMIDI - MIDI over Ethernet ports - send MIDI over your LAN https://nerds.de [17] Maemo.org - Home of the Maemo community https://www.maemo.org [18] Maemo.org Wiki - Nokia N900 https://wiki.maemo.org/Nokia_N900 [19] Maemo.org - Downloads: QmidiCtl https://maemo.org/downloads/product/Maemo5/qmidictl [20] AppImage, Linux apps that run anywhere https://appimage.org/ [21] CMake, a cross-platform, open-source build system generator https://cmake.org See also: https://www.rncbc.org/drupal/node/2224 Keep having fun && stay healthy, always! -- rncbc aka Rui Nuno Capela

4 years, 1 month

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JackAudio May 2021