Linux-audio-user January 2024

linux-audio-user@lists.linuxaudio.org

18 participants
11 discussions

by Will Godfrey

Does anyone know of software that can generate MIDI messages from a touchpad? The idea would be to send CCs to a sequencer or soft synth, but being able to send it to an external hardware device would also be very useful. -- Will J Godfrey 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.

1 month

jackd2 hanging after resume?

by Peter P.

Hi, Running jackd2 on an Edirol UA-25 USB interface as jackd -t2000 -dalsa -r44100 -p512 -n2 -Xseq -D -Chw:UA25 -Phw:UA25 -i2 -o2 I can not get clients to connect after having resumed the computer from "systemctl suspend". Upon resuming, jackd reports status error: No such device ALSA: channel flush for playback failed (No such device) JackAudioDriver::ProcessAsync: read error, stopping... and hangs. Trying to use mpv or puredata with this locked server then throw the same messages: Cannot read socket fd = 13 err = Success CheckRes error JackSocketClientChannel read fail Cannot open mpv client JackShmReadWritePtr1::~JackShmReadWritePtr1 - Init not done for -1, skipping unlock JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock Nevertheless, qjackctl indicates a running server but throws Cannot create new client JackPosixProcessSync::LockedTimedWait error usec = 5000000 err = Connection timed out Driver is not running Cannot create new client journalctl/dmesg show that the USB sound card is discovered as a new device after resuming from the suspend state. Stopping the server takes some time then, throwing: ALSA: channel flush for playback failed (No such device) Cannot stop driver port deleted: UA-25:midi/playback_1 port deleted: UA-25:midi/capture_1 Released audio card Audio2 audio_reservation_finish 11:05:51.251 JACK was stopped This problem does not exist when using jackd1. The computers internal soundcard (intel-hda) survives resuming from suspend with jackd2. What can I try next? Thanks! Peter

9 months

Oscilloscope Suggestions

by Sirjohndfox

Greetings All, I just came into possession of a Behringer Arp 2600 clone. I would like some eye candy while I fiddle my way through learning synthesis. Can anybody suggest some oscilloscope software? I've tried a few things already but I'm interested in other's favourite solutions. Cheers John Sent with Proton Mail secure email.

9 months, 2 weeks

Can't seem to change index of audio controller

by Jeremy Jongepier

Hello, Got a new notebook with the following audio device amongst others: 64:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD] ACP/ACP3X/ACP6x Audio Coprocessor (rev 63) ... card 1: acp63 [acp63], device 0: DMIC capture dmic-hifi-0 [] It is using, I think, the snd-soc-ps-mach kernel module but it seems this module does not respect the index option. I'd like to give this device a higher index so it doesn't get index 0. If I use something like the following configuration in /etc/modprobe.d/ it doesn't get picked up: options snd-soc-ps-mach index=12 Anybody any idea? And yeah, I know index is not a valid option for this module but the ALSA documentation states that all top level snd modules should respect this option. Or is this Pink Sardine stuff a whole different animal? And for the snd-hda-intel kernel module, is it possible to discern between devices when assigning indexes? As in, the snd-usb-audio module for instance has vid and pid options to discern between different USB audio and MIDI devices based on their vendor and product ID's. This is really handy as it allows you to assign fixed index numbers to these devices. The model and id options are not suited for this, they only allow you to actually set the model and/or id. Could very well this is not possible at all but I just want to be sure. Talking about USB, going lower than 64 frames/period floods dmesg with the following messages: [ 1223.745771] retire_capture_urb: 2362 callbacks suppressed [ 1223.759483] xhci_hcd 0000:66:00.4: WARN Event TRB for slot 1 ep 5 with no TDs queued? Is there anything I could do about that or is this the very limit this system can handle? No problem anyway since I barely run lower than 128 frames/period normally and even at 64 this system is pretty stable with bigger projects. But I just like to know how low this notebook can go. It's an AMD Ryzen 7 system so USB controllers are from AMD (USB ID's are 1d6b:0002/0003) Thanks in advance! Jeremy

9 months, 2 weeks

What software do I need to produce podcasts?

by Kevin Zembower

Hello, all, I've signed up for an Introduction to Audio Production course at my local community college. I mainly want to learn how to record audio in the field, and edit it into something like radio news segments or podcasts (for those too young to have heard of 'radio'). When I was playing around with this 5-10 years ago, the go-to software was Audacity, which I used and liked a lot. However, I understand that Audacity has gone through some upheavals. I'm on a Ubuntu 22.04 desktop, and I experimented at one time with PipeWire, but I can't remember what audio tools are on my system currently. Do I need a Digital Autio Workstation (DAW)? Which one, in the FOSS world, would you recommend? What audio tools (jack? pipewire?) do I also need? I'm sure that the college will have professional tools, in a lab, for us to use, but I'd like to see if I can duplicate all the assignments using FOSS tools. Thanks for any advice or guidance for me. -Kevin

9 months, 3 weeks

[ANN] Vee One Suite 0.9.34 - A Winter'24 Release batch #2

by Rui Nuno Capela

Hi there, once again, The 'Vee One Suite' of so called '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 (northern) Winter'24 season, in a so called QStuff* second batch of the New Year... All still delivered in dual form, as usual: - 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: - Added build checks on whether to use old or newer style of LV2 include headers. - LV2 plugin Control Input Port-change request extension feature support added. - Updated copyright headers into the New Year (2024). 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 0.9.34 (winter'24) released! 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/synthv1-0.9.34.tar.gz - source package: https://download.sf.net/synthv1/synthv1-0.9.34-75.1.rncbc.suse.src.rpm - binary packages (openSUSE Tumbleweed): https://download.sf.net/synthv1/synthv1-jack-0.9.34-75.1.rncbc.suse.x86_84.… https://download.sf.net/synthv1/synthv1-lv2-0.9.34-75.1.rncbc.suse.x86_84.r… - AppImage [9] package (JACK stand-alone only): https://download.sf.net/synthv1/synthv1-jack-0.9.34-75.1.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 0.9.34 (winter'24) released! 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/samplv1-0.9.34.tar.gz - source package: https://download.sf.net/samplv1/samplv1-0.9.34-75.1.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): https://download.sf.net/samplv1/samplv1-jack-0.9.34-75.1.rncbc.suse.x86_84.… https://download.sf.net/samplv1/samplv1-lv2-0.9.34-75.1.rncbc.suse.x86_84.r… - AppImage [9] package (JACK stand-alone only): https://download.sf.net/samplv1/samplv1-jack-0.9.34-75.1.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 0.9.34 (winter'24) released! 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/drumkv1-0.9.34.tar.gz - source package: https://download.sf.net/drumkv1/drumkv1-0.9.34-75.1.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): https://download.sf.net/drumkv1/drumkv1-jack-0.9.34-75.1.rncbc.suse.x86_84.… https://download.sf.net/drumkv1/drumkv1-lv2-0.9.34-75.1.rncbc.suse.x86_84.r… - AppImage [9] package (JACK stand-alone only): https://download.sf.net/drumkv1/drumkv1-jack-0.9.34-75.1.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 0.9.34 (winter'24) released! 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/padthv1-0.9.34.tar.gz - source package: https://download.sf.net/padthv1/padthv1-0.9.34-75.1.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): https://download.sf.net/padthv1/padthv1-jack-0.9.34-75.1.rncbc.suse.x86_84.… https://download.sf.net/padthv1/padthv1-lv2-0.9.34-75.1.rncbc.suse.x86_84.r… - AppImage [9] package (JACK stand-alone only): https://download.sf.net/padthv1/padthv1-jack-0.9.34-75.1.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/2541 Enjoy the New Year, cheers! - - - rncbc aka. Rui Nuno Capela

9 months, 3 weeks

Unable to start jack in real-time mode

by Arve Barsnes

Hello, I'm "suddenly" (after a couple months of disuse) unable to start jack in real-time mode, making ardour unable to take advantage of it. I've had more or less the same setup for more than 10 years, so I've really forgotten if there is anything else than the below that I could investigate. Tue Jan 23 20:21:51 2024: Starting jack server... Tue Jan 23 20:21:51 2024: JACK server starting in realtime mode with priority 10 Tue Jan 23 20:21:51 2024: self-connect-mode is "Don't restrict self connect requests" Tue Jan 23 20:21:51 2024: Acquired audio card Audio2 Tue Jan 23 20:21:51 2024: creating alsa driver ... hw:MobilePre|hw:MobilePre|128|3|48000|0|0|nomon|swmeter|-|32bit Tue Jan 23 20:21:51 2024: configuring for 48000Hz, period = 128 frames (2.7 ms), buffer = 3 periods Tue Jan 23 20:21:51 2024: ALSA: final selected sample format for capture: 16bit little-endian Tue Jan 23 20:21:51 2024: ALSA: use 3 periods for capture Tue Jan 23 20:21:51 2024: ALSA: final selected sample format for playback: 16bit little-endian Tue Jan 23 20:21:51 2024: ALSA: use 3 periods for playback Tue Jan 23 20:21:51 2024: ERROR: Cannot use real-time scheduling (RR/10) (1: Operation not permitted) Tue Jan 23 20:21:51 2024: ERROR: AcquireSelfRealTime error # ls -l /dev/rtc0 crw-rw---- 1 root audio 253, 0 Jan 10 20:00 /dev/rtc0 # grep audio /etc/security/limits.conf @audio - rtprio 99 @audio - memlock unlimited My user is a member of the audio group. This is a pure ALSA system, so there is no pulseaudio that could be the culprit. pipewire is installed, but have not been running at any time, although there might be something there? As far as I've figured, when it last worked I was on a 6.4.x kernel, I've been through a 6.5.x and have now had this problem on a few different 6.6.x kernels. From what I can gather, I've not changed anything that I can see. All help welcome. Regards, Arve

9 months, 3 weeks

[ANN] The QStuff* Winter'24 Release batch #1

by Rui Nuno Capela

Hi there! The first batch of the 'QStuff*': QjackCtl [1], Qsynth [2], Qsampler [3], QXGEdit [4], QmidiCtl [5] and QmidiNet [6], are here released for the (northern) Winter'24season. Enjoy the New Year. ** QjackCtl - JACK Audio Connection Kit Qt GUI Interface [1] ** QjackCtl 0.9.13 (winter'24) is out! 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. Change-log: - Graph: Make the main canvas background to mid-gray, when on non-dark color themes. - Turkish (tr) translation added. - Updated copyright headers into the New Year (2024). 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-0.9.13.tar.gz - source package: https://download.sf.net/qjackctl/qjackctl-0.9.13-57.1.rncbc.suse.src.rpm - binary packages: https://download.sf.net/qjackctl/qjackctl-0.9.13-57.1.rncbc.suse.x86_64.rpm - AppImage [20] package: https://download.sf.net/qjackctl/qjackctl-0.9.13-57.1.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 ** Qsynth - A FluidSynth Qt GUI Interface [2] ** Qsynth 0.9.13 (winter'24) is out! Qsynth is a FluidSynth [10] GUI front-end application written in C++ around the Qt framework [7] using Qt Designer. Change-log: - Add PipeWire (pw_init) support. - Updated copyright headers into the New Year (2024). 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-0.9.13.tar.gz - source package: https://download.sf.net/qsynth/qsynth-0.9.13-57.1.rncbc.suse.src.rpm - binary packages: https://download.sf.net/qsynth/qsynth-0.9.13-57.1.rncbc.suse.x86_64.rpm - AppImage [20] package: https://download.sf.net/qsynth/qsynth-0.9.13-57.1.x86_64.AppImage - Windows package (thanks to Pedro Lopez-Cabanillas): https://download.sf.net/qsynth/qsynth-0.9.13-57.1.win-x64-setup.exe - Flatpak [21] package (also thanks to Pedro Lopez-Cabanillas): https://flathub.org/apps/details/org.rncbc.qsynth Git repos: https://git.code.sf.net/p/qsynth/code https://github.com/rncbc/qsynth.git https://gitlab.com/rncbc/qsynth.git https://codeberg.com/rncbc/qsynth.git ** Qsampler - A LinuxSampler Qt GUI Interface [3] ** Qsampler 0.9.12 (winter'24) is out! Qsampler is a LinuxSampler [11] GUI front-end application written in C++ around the Qt framework [7] using Qt Designer. Change-log: - Updated copyright headers into the New Year (2024). 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-0.9.12.tar.gz https://download.sf.net/qsampler/liblscp-0.9.12.tar.gz - source packages: https://download.sf.net/qsampler/qsampler-0.9.12-56.1.rncbc.suse.src.rpm https://download.sf.net/qsampler/liblscp-0.9.12-56.1.rncbc.suse.src.rpm - binary packages: https://download.sf.net/qsampler/qsampler-0.9.12-56.1.rncbc.suse.x86_64.rpm https://download.sf.net/qsampler/liblscp6-0.9.12-56.1.rncbc.suse.x86_64.rpm https://download.sf.net/qsampler/liblscp-devel-0.9.12-56.1.rncbc.suse.x86_6… - AppImage [20] package: https://download.sf.net/qsampler/qsampler-0.9.12-56.1.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://codeberg.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://codeberg.com/rncbc/liblscp.git ** QXGEdit - A Qt XG Editor [4] ** QXGEdit 0.9.12 (winter'24) is out! 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. Change-log: - Introducing cross-platform support via RtMidi. [22] - Updated copyright headers into the New Year (2024). 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-0.9.12.tar.gz - source package: https://download.sf.net/qxgedit/qxgedit-0.9.12-56.1.rncbc.suse.src.rpm - binary packages: https://download.sf.net/qxgedit/qxgedit-0.9.12-56.1.rncbc.suse.x86_64.rpm - AppImage [20] package: https://download.sf.net/qxgedit/qxgedit-0.9.12-56.1.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://codeberg.com/rncbc/qxgedit.git ** QmidiCtl - A MIDI Remote Controller via UDP/IP Multicast [5] ** QmidiCtl 0.9.12 (winter'24) is out! 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. Change-log: - Updated copyright headers into the New Year (2024). 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-0.9.12.tar.gz - source package: https://download.sf.net/qmidictl/qmidictl-0.9.12-56.1.rncbc.suse.src.rpm - binary packages: https://download.sf.net/qmidictl/qmidictl-0.9.12-56.1.rncbc.suse.x86_64.rpm - AppImage [20] package: https://download.sf.net/qmidictl/qmidictl-0.9.12-56.1.x86_64.AppImage - Android packages: https://download.sf.net/qmidictl/qmidictl-0.9.12-56.1.arm64-v8a.apk https://download.sf.net/qmidictl/qmidictl-0.9.12-56.1.x86_64.apk 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://codeberg.com/rncbc/qmidictl.git ** QmidiNet - A MIDI Network Gateway via UDP/IP Multicast [6] ** QmidiNet 0.9.12 (winter'24) is out! 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. Change-log: - Add Unique/Single instance support. - Updated copyright headers into the New Year (2024). 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-0.9.12.tar.gz - source package: https://download.sf.net/qmidinet/qmidinet-0.9.12-56.1.rncbc.suse.src.rpm - binary packages: https://download.sf.net/qmidinet/qmidinet-0.9.12-56.1.rncbc.suse.x86_64.rpm - AppImage [20] package: https://download.sf.net/qmidinet/qmidinet-0.9.12-56.1.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://codeberg.com/rncbc/qmidinet.git - - - 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] Flatpak, next-generation technology for building and distributing desktop applications on Linux https://flatpak.org/ [22] RtMidi, A set of (cross-platform) C++ classes that provide a common API for realtime MIDI input/output. https://github.com/thestk/rtmidi See also: https://www.rncbc.org/drupal/node/2538 See y'all soon! - - - rncbc aka Rui Nuno Capela

9 months, 3 weeks

jack_lsp for jackd1?

by Peter P.

It seems that the jack_lsp tool, which lists jack ports/connections on the command line, is only available as part of the jackd2 package on Debian. Is this intentional? For Debian oldstable it exists as part of the jackd1 package... thanks for any help! P

9 months, 4 weeks

Still rather confused about Pipewire an interesting midi twists

by Lorenzo Sutton

Hi list and happy 2024! I am running Manjaro (an Arch-based distro). It seems now I have a 'pipewire' package installed, but also pulseaudio. I don't think I have actively tried to install 'pipewire' but maybe it's a dependency for 'something'? Anyways, my current audio set-up is still as it has been for quite a while on my laptop: - pulseaudio for 'eveyday' - jack for audio stuff and software (with a still working script I start only when needed to have a pulseaudio 'sink' - e.g. running jack and wanting to play audio or video from the browser) All of this works as expected and I am still rather unaware of the pipewire intricacies and configurations. One thing I have noticed is that now it seems that alsa midi ports are exposed as jack midi ports as well. Meaning... if I start some notoriously ALSA-MIDI-only applications such as Rosegarden, Pure Data or Qtractor their midi Outputs are shown in QJackCtl in the MIDI (i.e. JACK MIDI) section and are also visible in notoriously JACK-MIDI-only applications like Ardour or Carla, albeit without their port names (Carla puts everything in 'System' and calls the various ports 'midi_capture_1', 'midi_capture_2' etc. regardless of application, Ardour puts everything under 'system' and then does distinguish applications if set to 'show individual ports' but just lists # ports without their names, QJackCtl lists the applications and then for each lists ports as 'midi/playback1', 'midi/playback2' etc.) The most interesting aspect is that besides the naming quirk these ports seem to work meaning that connecting rosegarden to, say, an Ardour MIDI track with a plugin will make noise. That is without going through a2jmidid. a2midid actually works pretty well so I'm not sure what the 'real' advantage would be, but it's still something interesting IMHO. Lorenzo

10 months, 2 weeks

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Linux-audio-user January 2024