Linux-audio-user September 2023

linux-audio-user@lists.linuxaudio.org

20 participants
16 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 year

Re: Editing and reloading .sfz files

by David Sumbler

On Wed, 20 Sep 2023 15:53:47 +0200, Christopher Arndt wrote: > Am 20.09.23 um 15:21 schrieb David Sumbler: >> I might perhaps try installing the latest git version of sfizz. > > If you have all the dependencies installed, you should be able to > compile & install the latest sfizz with: > > git clone --recursive "https://github.com/sfztools/sfizz-ui.git" > cmake \ > -B sfizz-build \ > -S sfizz-ui \ > -W no-dev \ > -D CMAKE_INSTALL_PREFIX=/usr \ > -D CMAKE_BUILD_TYPE=Release \ > -D CMAKE_CXX_STANDARD=17 > cmake --build sfizz-build --verbose > cmake --install sfizz-build > >> by alternating the 2 filenames I avoid the crashes. > > If you have both files in the same directory, the load next/previous SFZ > buttons in the UI (to the right of the name of the currently loaded SFZ) > make that especially quick. Regarding the last point: I find that using the right/left arrow buttons almost always causes sfizz to crash! Previously I was usng the lv2 version of sfizz; I have now tried the vst3 version, but with similar results. So I decided to try to install the latest git version of sfizz, using your very helpful step-by-step instructions. Unfortunately the first cmake command produces this error: Package 'jack', required by 'virtual:world', not found I certainly have the jack server running on my computer, and QjackCtl shows it to be working OK. No package called simply 'jack' seems to exist in the regular Ubuntu Studio repositories, so I'm not sure what to do about it. Any suggestions? David

2 years, 1 month

Confused about sample rates.

by Bill Purvis

I mentioned in a previous email that I've switched to Pipewire on my laptop. It works fine with most things - I use Audacious to play CDs, and Firefox seems happy enough to play things from You-Tube or BBC. However, when I try to run GrandOrgue I get confusing messages, saying: Error: No sound output will happen. Samples per buffer has been changed by the sound driver to 512. Under jack, I had been running at 44100sps, with 2 buffers of 1024 samples. QJackCtl shows this as still being in force, though whether this is what pipewire is actually doing I don't know. Changing setting in QJackCtl to 512 spb gives a message which suggests that pipewire is still expecting 1024. Bill -- +----------------------------------------+ | Bill Purvis | | email: bill(a)billp.org | +----------------------------------------+

2 years, 1 month

Finding status of jack server with pipewire

by Bill Purvis

Hi, I'm putting together a digital organ using GrandOrgue and Jack, I've had to adapt a program called ttymidi to convert serial input from Arduino scanners to Jack which passes it on to GrandOrgue. It all works fine until I try to polish up the pwoer-on sequence. If I start the modified ttymidi code before jack has got going it falls over. I want to be able to test out my modified code on my laptop, as I only get access to the organ occasionally. Unfortunately I recently switched my laptop to use pipewire instead of pulseaudio (for general usage, such as watching web videos). That got sorted out, but when I came to testing my code, it seems to set up the connection to jack even when I've stopped jack (actually jackdbus). Is this because pipewire is intercepting the requests (jack_open_client(...))? I tried adding an input port, and this seems to connect OK, and the client appears on qjackctl's connection graph, despite qjackctl saying that jack is stopped! Is pipewire doing a complete replacement for jack? I can't find much on the web other than initial install and setup, not much about how it works. I can probably sort out the above problem next time I can access the organ, which doesn't need pipewire or pulseaudio, so it will just be running jack, but I am curious to know more about what is going on. Anyone on this list actually part of the pipewire team? Bill -- +----------------------------------------+ | Bill Purvis | | email:bill@billp.org | +----------------------------------------+

2 years, 1 month

DAW Project?

by Lorenzo Sutton

Just read about this: https://github.com/bitwig/dawproject As with many of these 'standardization' efforts success might depend on adoption, but it's an interesting initiative, so we will see what happens :-) Lorenzo

2 years, 1 month

[LAA] Anklang 0.2.0 Released

by Stefan Westerfeld

Anklang version 0.2.0 is released. Anklang is a digital audio synthesis application for live creation and composition of music. It is released as Free Software (MPL-2.0) and runs under Linux. The real-time sound engine is implemented in C++, the UI runs in Electronjs, Firefox or Chrome. Assistance with development, porting or creative efforts is very welcome. Anklang provides a MIDI sequencer, Undo/Redo capabilities for note editing, real-time synthesis, and support for CLAP plugins. The source code and binary packages are available here: https://github.com/tim-janik/anklang/releases/tag/v0.2.0 The project website with further resources is at: https://anklang.testbit.eu/ ======================================================================= This release has significant improvements to audio synthesis capabilities and user interface. The documentation has been improved in several places, and automated generation was integrated into the CI. Audio synthesis enhancements include support for new CLAP (draft) extensions, such as transport information and file references. We now support non-linear mappings for BlepSynth ADSR times, and a new audio plugin Freeverb by Jezar at Dreampoint was added, with fixes to the damping mode in the original version. Additionally, a Jack PCM driver based on Stefan Westerfelds’ code was integrated. Performance improvements were achieved by adding a new optimizing memory allocator and supporting low-latency scheduling via sched_* or RtKit. Saving projects will now automatically create backups of recent versions. The user interface has also seen significant improvements in this release. These include context help via F1 key in various UI components, fixes to mouse wheel sensitivity for modern browsers, improved tooltips and note editing in the piano roll. The UI can now be zoomed via new menu entries, the color palette was updated, and integration of TypeScript annotations allowed improving the UI JavaScript code quality. In terms of packaging, AppImage builds saw major compatibility improvements, and we increased the frequency of Nightly releases, building from nearly all significant trunk merge commits. We aim to generate more regular releases in the future instead of having lots of Nightly builds between regular releases. -- Anklang Free Software DAW: https://anklang.testbit.eu/

2 years, 1 month

Re: Editing and reloading .sfz files

by David Sumbler

On Sun, 17 Sep 2023 03:23:52 +0200, Christopher Arndt wrote: > Am 16.09.23 um 20:44 schrieb David Sumbler: > > Is there some way of being able to test sfz files, with automatic > > reload > > as in Sforzando, but using native Linux programs and/or plugins? > > I'm testing SFZ files in sfizz loaded as an LV2 or VST3 plugin in > Carla > running as a stand-alone plugin host. > > I get *occasional* crashes when editing loaded SFZ files, but they're > not very frequent. > > I'm running Manjaro, so the Carla and sfizz versions I'm running are > possibly more up-to-date than on Ubuntu Studio. In fact, for sfizz I > usually use the AUR sfizz-git package, so I'm running a version > compiled > from a recent git repo commit. Thanks for that suggestion. I confess that I didn't even know that Carla could be run stand-alone. I tried this, but unfortunately I still get a crash every time I edit the sfz file. I might perhaps try installing the latest git version of sfizz. But in the mean time, I find that the simplest solution is to call my file something like filenameA.sfz, then after making an edit I save it as filenameB.sfz, after another edit filenameA.sfz. and so on. I simply have to load the latest version as a new file in the sfizz plugin, and by alternating the 2 filenames I avoid the crashes. David

2 years, 1 month

Editing and reloading .sfz files

by David Sumbler

I'm pretty new to using sfz, and have been experimenting with modifying files. I'm running Ubuntu Studio 23.04, and I have sfizz as a plugin to a track in qTractor. I have also tried using Carla-rack as a plugin, with sfizz inside that. Unfortunately in both cases, if I make an edit to the sfz file I am testing, qTractor crashes. I don't know whether the problem is with sfizz or with qTractor itself. Sforzando appears to reload a file if it is changed, so that you can immediately test out the results of your edits. Unfortunately of course, Sforzando doesn't exist in a Linux version. I know some people have got Sforzando working in Wine, but I'm not at all clear about how to do that or whether I could then use it inside qTractor. Is there some way of being able to test sfz files, with automatic reload as in Sforzando, but using native Linux programs and/or plugins?

2 years, 1 month

[ANN] Qtractor 0.9.35 - An End-of-Summer'23 Release batch #3

by Rui Nuno Capela

Hi, thrice again, Qtractor 0.9.35 (end-of-summer'23) is out! Change-log: - MIDI Step-input is now finally featured on the MIDI clip editor (aka. piano-roll), provided Clip/Record is on and playback is not rolling; current snap-to-beat applies; starts/resets to play-head; Edit/Insert/Step to advance a single step/rest. - Notes keyed in the MIDI clip editor's virtual piano keyboard may now be recorded, especially while "overdubbing". - The official VST3 plug-in SDK is now included in the source tree as Git submodules. - Fixed a rounding error on current BBT information passed to plugins and to JACK transport/timebase. - When on Track/Auto Deactivate mode, plugins now show a dull, dimmed lit, green (fake-)LED when in auto-deactivated state. - Attempt to actually (de)activate plugins once on (de)instantiation. - Preppings to next development cycle (Qt >= 6.6) 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-0.9.35.tar.gz - source package (openSUSE Tubleweed): https://download.sf.net/qtractor/qtractor-0.9.35-78.1.rncbc.suse.src.rpm - binary package (openSUSE Tubleweed): https://download.sf.net/qtractor/qtractor-0.9.35-78.1.rncbc.suse.x86_64.rpm - AppImage [7] package: https://download.sf.net/qtractor/qtractor-0.9.35-78.1.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 (outdated; help wanted!): 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/2464 Keep having fun! -- rncbc aka Rui Nuno Capela -- rncbc aka. Rui Nuno Capela rncbc(a)rncbc.org

2 years, 1 month

[ANN] Vee One Suite 0.9.32 - An End-of-Summer'23 Release batch #2

by Rui Nuno Capela

Hello, twice 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) [i]End-of-Summer'23[/i] season... All being delivered still 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]. The simplest change-log: - Preppings to next development cycle (Qt >= 6.6) 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 0.9.32 (end-of-summer'23) 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/synthv1-0.9.32.tar.gz - source package: https://download.sf.net/synthv1/synthv1-0.9.32-73.1.rncbc.suse.src.rpm - binary packages (openSUSE Tumbleweed): https://download.sf.net/synthv1/synthv1-jack-0.9.32-73.1.rncbc.suse.x86_84.… https://download.sf.net/synthv1/synthv1-lv2-0.9.32-73.1.rncbc.suse.x86_84.r… - AppImage [9] package (JACK stand-alone only): https://download.sf.net/synthv1/synthv1-jack-0.9.32-73.1.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 0.9.32 (end-of-summer'23) 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/samplv1-0.9.32.tar.gz - source package: https://download.sf.net/samplv1/samplv1-0.9.32-73.1.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): https://download.sf.net/samplv1/samplv1-jack-0.9.32-73.1.rncbc.suse.x86_84.… https://download.sf.net/samplv1/samplv1-lv2-0.9.32-73.1.rncbc.suse.x86_84.r… - AppImage [9] package (JACK stand-alone only): https://download.sf.net/samplv1/samplv1-jack-0.9.32-73.1.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 0.9.32 (end-of-summer'23) 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/drumkv1-0.9.32.tar.gz - source package: https://download.sf.net/drumkv1/drumkv1-0.9.32-73.1.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): https://download.sf.net/drumkv1/drumkv1-jack-0.9.32-73.1.rncbc.suse.x86_84.… https://download.sf.net/drumkv1/drumkv1-lv2-0.9.32-73.1.rncbc.suse.x86_84.r… - AppImage [9] package (JACK stand-alone only): https://download.sf.net/drumkv1/drumkv1-jack-0.9.32-73.1.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 0.9.32 (end-of-summer'23) 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/padthv1-0.9.32.tar.gz - source package: https://download.sf.net/padthv1/padthv1-0.9.32-73.1.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): https://download.sf.net/padthv1/padthv1-jack-0.9.32-73.1.rncbc.suse.x86_84.… https://download.sf.net/padthv1/padthv1-lv2-0.9.32-73.1.rncbc.suse.x86_84.r… - AppImage [9] package (JACK stand-alone only): https://download.sf.net/padthv1/padthv1-jack-0.9.32-73.1.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/2463 Have some fun, cheers! -- rncbc aka. Rui Nuno Capela

2 years, 1 month

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Linux-audio-user September 2023