Linux-audio-dev July 2020

linux-audio-dev@lists.linuxaudio.org

11 participants
15 discussions

[ANN] Vee One Suite 0.9.13 - A QStuff* Spring'20 Release batch #2

by Rui Nuno Capela

Greetings once more, 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 and padthv1 [4] as a polyphonic additive synthesizer, are all being released now for the second 'QStuff*' Spring'20 batch of the (quarantine) season. All still available in dual form deliveries: - a pure stand-alone JACK client with JACK-session [5], NSM (Non Session management [6]) and both JACK MIDI and ALSA MIDI [7] input support; - a LV2 instrument plug-in [8]. Not much of a ravishing change-log, just on the brink of utterly boring maintenance stuff: - Always keep the current sample loop-cycle on note-off, while entering a DCA Release stage. (applies to samplv1 [2] only) - Maximum pitch-bend range has been expanded to 0..400%, allegedly to support some PME driven instruments. - Make man page compression reproducible (after request by Jelle van der Waa, thanks). - Fixed crash when showing the tooltip of a negative note number that results from dragging over and beyond the left edge of the virtual piano keyboard. - Remove -v (verbose) flag from 'strip' post-link command. - Fixed CMake build by adding missing Custom Color Theme (palette) form file (.ui). - Bumped copyright headers into the New Year (2020). 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 0.9.13 (spring'20) 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/synthv1-0.9.13.tar.gz - source package: https://download.sf.net/synthv1/synthv1-0.9.13-53.rncbc.suse.src.rpm - binary packages (openSUSE Tumbleweed): https://download.sf.net/synthv1/synthv1-0.9.13-53.rncbc.suse.x86_84.rpm https://download.sf.net/synthv1/synthv1-lv2-0.9.13-53.rncbc.suse.x86_84.rpm - AppImage [9] package (JACK stand-alone only): https://download.sf.net/synthv1/synthv1-0.9.13-53.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://bitbucket.org/rncbc/synthv1.git **samplv1 - an old-school polyphonic sampler [2]** samplv1 0.9.13 (spring'20) 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/samplv1-0.9.13.tar.gz - source package: https://download.sf.net/samplv1/samplv1-0.9.13-53.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): https://download.sf.net/samplv1/samplv1-0.9.13-53.rncbc.suse.x86_84.rpm https://download.sf.net/samplv1/samplv1-lv2-0.9.13-53.rncbc.suse.x86_84.rpm - AppImage [9] package (JACK stand-alone only): https://download.sf.net/samplv1/samplv1-0.9.13-53.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://bitbucket.org/rncbc/samplv1.git **drumkv1 - an old-school drum-kit sampler [3]** drumkv1 0.9.13 (spring'20) 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/drumkv1-0.9.13.tar.gz - source package: https://download.sf.net/drumkv1/drumkv1-0.9.13-43.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): https://download.sf.net/drumkv1/drumkv1-0.9.13-43.rncbc.suse.x86_84.rpm https://download.sf.net/drumkv1/drumkv1-lv2-0.9.13-43.rncbc.suse.x86_84.rpm - AppImage [9] package (JACK stand-alone only): https://download.sf.net/drumkv1/drumkv1-0.9.13-53.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://bitbucket.org/rncbc/drumkv1.git **padthv1 - an old-school polyphonic additive synthesizer [4]** padthv1 0.9.13 (spring'20) 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/padthv1-0.9.13.tar.gz - source package: https://download.sf.net/padthv1/padthv1-0.9.13-53.rncbc.suse.src.rpm - binary package (openSUSE Tumbleweed): https://download.sf.net/padthv1/padthv1-0.9.13-53.rncbc.suse.x86_84.rpm https://download.sf.net/padthv1/padthv1-lv2-0.9.13-53.rncbc.suse.x86_84.rpm - AppImage [9] package (JACK stand-alone only): https://download.sf.net/padthv1/padthv1-0.9.13-53.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://bitbucket.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 http://non.tuxfamily.org/nsm/ [7] ALSA, Advanced Linux Sound Architecture https://www.alsa-project.org/ [8] LV2, Audio Plugin Standard, the extensible successor of LADSPA http://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/2076 Enjoy && Stay safe! -- rncbc aka. Rui Nuno Capela rncbc(a)rncbc.org

2 years, 7 months

[ANN] The QStuff* Summer'20 Release batch #1

by Rui Nuno Capela

Greetings Here goes the first bunch of 'QStuff*', QjackCtl [1], Qsynth [2], Qsampler [3], QXGEdit [4], QmidiCtl [5] and QmidiNet [6], all bumped to **version 0.6.3** while on this (Northern) Summer'20 season. ** QjackCtl - JACK Audio Connection Kit Qt GUI Interface [1] ** QjackCtl 0.6.3 (summer'20) is out! QjackCtl is a(n ageing 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-0.6.3.tar.gz - source package: https://download.sf.net/qjackctl/qjackctl-0.6.3-43.rncbc.suse.src.rpm - binary package: https://download.sf.net/qjackctl/qjackctl-0.6.3-43.rncbc.suse.x86_64.rpm - AppImage [20] package: https://download.sf.net/qjackctl/qjackctl-0.6.3-43.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: - Clock source and Self connect restriction options have been added to Setup / Settings / Advanced (only enabled when JACK D-BUS control interface is in effect). - Added preliminary support for JACK CV signal-type ports and JACK OSC event-type ports (Graph only). - Left-clicking on the system-tray icon now simply toggles the main widget visibility, disregarding if already hidden undercover to other windows. - Graph nodes and ports are now presented with some gradient background. - Fixed Setup dialog Cancel (or close) behavior when Settings > Parameters > Frames/Period (aka. buffer-size) it's the only setting that's changed. - Early fixing to build for Qt >= 5.15.0. ** Qsynth - A fluidsynth Qt GUI Interface [2] ** Qsynth 0.6.3 (summer'20) is out! 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-0.6.3.tar.gz - source package: https://download.sf.net/qsynth/qsynth-0.6.3-43.rncbc.suse.src.rpm - binary package: https://download.sf.net/qsynth/qsynth-0.6.3-43.rncbc.suse.x86_64.rpm - AppImage [20] package: https://download.sf.net/qsynth/qsynth-0.6.3-43.x86_64.AppImage 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: - Left-clicking on the system-tray icon now simply toggles the main widget visibility, disregarding if already hidden undercover to other windows. - Early fixing to build for Qt >= 5.15.0. ** Qsampler - A LinuxSampler Qt GUI Interface [3] ** Qsampler 0.6.3 (summer'20) is out! 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-0.6.3.tar.gz - source package: https://download.sf.net/qsampler/qsampler-0.6.3-43.rncbc.suse.src.rpm - binary package: https://download.sf.net/qsampler/qsampler-0.6.3-43.rncbc.suse.x86_64.rpm - AppImage [20] package: https://download.sf.net/qsampler/qsampler-0.6.3-43.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 Change-log: - Early fixing to build for Qt >= 5.15.0. ** QXGEdit - A Qt XG Editor [4] ** QXGEdit 0.6.3 (summer'20) 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. 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-0.6.3.tar.gz - source package: https://download.sf.net/qxgedit/qxgedit-0.6.3-33.rncbc.suse.src.rpm - binary package: https://download.sf.net/qxgedit/qxgedit-0.6.3-33.rncbc.suse.x86_64.rpm - AppImage [20] package: https://download.sf.net/qxgedit/qxgedit-0.6.3-33.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: - Early fixing to build for Qt >= 5.15.0. ** QmidiCtl - A MIDI Remote Controller via UDP/IP Multicast [5] ** QmidiCtl 0.6.3 (summer'20) 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. 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-0.6.3.tar.gz - source package: https://download.sf.net/qmidictl/qmidictl-0.6.3-23.rncbc.suse.src.rpm - binary package: https://download.sf.net/qmidictl/qmidictl-0.6.3-23.rncbc.suse.x86_64.rpm - AppImage [20] package: https://download.sf.net/qmidictl/qmidictl-0.6.3-23.x86_64.AppImage - Android packages: https://download.sf.net/qmidictl/qmidictl-0.6.3-23.armeabi-v7a.apk https://download.sf.net/qmidictl/qmidictl-0.6.3-23.arm64-v8a.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://bitbucket.com/rncbc/qmidictl.git Change-log: - Early fixing to build for Qt >= 5.15.0. ** QmidiNet - A MIDI Network Gateway via UDP/IP Multicast [6] ** QmidiNet 0.6.3 (summer'20) 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. 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-0.6.3.tar.gz - source package: https://download.sf.net/qmidinet/qmidinet-0.6.3-23.rncbc.suse.src.rpm - binary package: https://download.sf.net/qmidinet/qmidinet-0.6.3-23.rncbc.suse.x86_64.rpm - AppImage [20] package: https://download.sf.net/qmidinet/qmidinet-0.6.3-23.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: - Early fixing to build for Qt >= 5.15.0. 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/ See also: https://www.rncbc.org/drupal/node/2108 Enjoy && Have fun! -- rncbc aka. Rui Nuno Capela rncbc(a)rncbc.org

3 years, 9 months

SoundTracker 1.0.1 released

by Yury Alyaev

Hi all! I have decided to release finally SoundTracker v1.0.1. Lacking feedback after the 1.0.1-pre1 release I had to spent enough time to test it thoroughly. During this testing, I have found and fixed numerous bugs. Now ST seems to be matured enough to be released. You can download it here: https://sourceforge.net/projects/soundtracker/files/ 1.0.1 release contains no new features compared to 1.0.1-pre1, it is the bugfixing release only. So its list of features is the same as for 1.0.1-pre1: Regards, Yury. What is new in soundtracker-1.0.1 (29-Jul-2020): * Improved mouse usage in the instrument editor (yaliaev) * Indication of pressed keys in the instrument editor (yaliaev) * Better look of the scopes (yaliaev) * Record indicator in the sampling monitor (yaliaev) * More configurable colors (yaliaev) * Logarithmic scale of the amplification slider; numeric entry in addition to the slider; ability to determine the optimal amplification (yaliaev) * Extended editor on the module info page with functions of exchanging and copying samples and instruments, mixing samples and tuning a sample using another one as a reference (yaliaev) * Different selection modes in tracker, selection can be extended with SHIFT (yaliaev) * A new method of waveforms' drawing in the sample displays in addition to the existing one (yaliaev) * Automatic file extension adding (optional) (yaliaev) * More convenient keybindings; new keybindings are added (see README) (yaliaev) * Some more keys are made configurable including that for song / pattern playback (yaliaev) * New playing modes are added: Playing selected block and Playng from cursor, playback looping control (yaliaev) * Facility for loading somewhat broken modules (yaliaev) * Stepping volume / FX parameter with mouse wheel (yaliaev) * Improved export to audio file (yaliaev) * Volume column can be displayed like in FT2, with letters, mnemonics and optional decimal volume representation (yaliaev) * Jack input driver (yaliaev) * Improved live recording using PC keyboard: better key pressing / releasing times are recorded using FXes (yaliaev) * Some other small improvements (GUI, usability) (yaliaev) * Some bugfixes including the CPU overhead with graphics (yaliaev)

3 years, 9 months

[LAA] Mamba - Virtual Midi keyboard for Jack Audio Connection Kit release 1.1

by Hermann Meyer

Hi Mamba release v1.1 is out Mamba - Virtual Midi keyboard https://github.com/brummer10/Mamba Mamba features * Virtual Midi Keyboard for Jack Audio Connection Kit <https://jackaudio.org/> * including NSM <https://linuxaudio.github.io/new-session-manager/> support * Channel selector * Bank and Program selector * Keyboard mapping for qwertz, qwerty and azerty selectable from menu * PC Keyboard mapping selector from C0 to C4 * Pitchbend, Balance, Modwheel, Detune, Expression, Attack, Release, Volume and Velocity controllers * Sustain and Sostenuto switches * Midi Through: forward midi input to output * Midi input highlighting * resizable to a full range 127 key view * Midi live recording and looping Mamba is released under the 0BSD license regards hermann

3 years, 9 months

update of jkmeter

by Fons Adriaensen

Hell all, jkmeter-0.8.0 is now available at the usual place: <http://kokkinizita.linuxaudio.org/linuxaudio/downloads> Changes: * some code cleanup, * added the -k12 option. Ciao, -- FA

3 years, 9 months

B.Jumblr 1.4.0 (LV2 plugin)

by Sven Jaehnichen

Hello, it's time for a new release of B.Jumblr, a pattern-controlled audio-stream & sample re-sequencer. Now it comes along with multiple pattern pages and optional MIDI control. What's new: ----------- * Up to 16 pattern pages * More compact GUI <-> DSP data transfer * MIDI-controlled pattern playback * MIDI learn Repository: https://github.com/sjaehn/BJumblr Releases: https://github.com/sjaehn/BJumblr/releases Tutorial video: https://www.youtube.com/watch?v=DFSi7TMqvMw Acknowledgments: ---------------- * Milkii Brewster for ideas about principle and features * unfa for ideas about multiple patterns and automation * Rob van den Berg for the plugin name Enjoy and have fun Sven Jaehnichen

3 years, 9 months

[RFT] ALSA control service programs for Fireworks board module

by Takashi Sakamoto

Hi, This is request-for-test (RFT) to the ALSA control service programs for devices with Fireworks board module. The program is available in 'topic/service-for-efw' of below repository, and the RFT is corresponding to Pull Request #2: * https://github.com/alsa-project/snd-firewire-ctl-services/ If you have listed devices and handle them by ALSA fireworks driver, please test the service program according to the below instruction. * Mackie (Loud) Onyx 1200F * Mackie (Loud) Onyx 400F * Echo Audio Audiofire 12 (till Jul 2009) * Echo Audio Audiofire 8 (till Jul 2009) * Echo Audio Audiofire 12 (since Jul 2009) * Echo Audio Audiofire 8 (since Jul 2009) * Echo Audio Audiofire 2 * Echo Audio Audiofire 4 * Echo Audio Audiofire Pre8 * Gibson Robot Interface Pack (RIP) for Robot Guitar series Background ---------- The models with Fireworks board module are already supported by ALSA fireworks driver for their isochronous packet stream functionality and vendor-specific transaction. Although the driver allows userspace applications to process PCM frames and MIDI messages in the packet streaming, it doesn't support the other functionalities such as volume control since it can be achieved by any usespace application which executes ioctl(2) to ALSA hwdep character device for the transaction. The service program is to satisfy the demand to control the models. ALSA control applications can request the control by IPC to the service program. In detail of mechanism, please read README.rst in the repository[1]. You can see some illustrations. How to build ------------- The project depends on several libraries in below repositories: * glib[2] * alsa-gobject v0.1.0[3] * libhinawa v2.0.0[4] Before building it, please install them with gobject-introspection support. The project is written by Rust programming language[5] and packaged by cargo[6]. To build, just run below commands in the environment to connect to internet: ``` $ git clone https://github.com/alsa-project/snd-firewire-ctl-services.git -b topic/service-for-efw $ cd snd-firewire-ctl-services $ cargo build ``` All of required crates are downloaded automatically, then start build. Executables ----------- After building, `snd-fireworks-ctl-service` executable is available. When running, the program adds and maintains control elements, then enter event loop to dispatch events. The added elements are visible and manipulable for any userspace applications. The program dispatch any manipulation event for transactions to control actual device. The executable has an option for the numerical ID of sound card. ``` Usage: snd-fireworks-ctl-service CARD_ID where: CARD_ID: The numerical ID of sound card. ``` It's easy to run the executable by cargo, like: ``` $ cargo run --bin snd-fireworks-ctl-service 2 ``` Receiving SIGTERM signal terminates the event loop, then the program finishes. During runtime, any ALSA control applications can enumerate and manipulate the added control elements. This is an example of Echo Audio AudioFire 2: ``` $ amixer -c 2 controls numid=33,iface=MIXER,name='clock-detect' numid=2,iface=MIXER,name='clock-rate' numid=1,iface=MIXER,name='clock-source' numid=36,iface=MIXER,name='input-meter' numid=34,iface=MIXER,name='midi-in-detect' numid=35,iface=MIXER,name='midi-out-detect' numid=6,iface=MIXER,name='monitor-gain' numid=7,iface=MIXER,name='monitor-gain',index=1 numid=8,iface=MIXER,name='monitor-gain',index=2 numid=9,iface=MIXER,name='monitor-gain',index=3 numid=10,iface=MIXER,name='monitor-gain',index=4 numid=11,iface=MIXER,name='monitor-gain',index=5 numid=12,iface=MIXER,name='monitor-mute' numid=13,iface=MIXER,name='monitor-mute',index=1 numid=14,iface=MIXER,name='monitor-mute',index=2 numid=15,iface=MIXER,name='monitor-mute',index=3 numid=16,iface=MIXER,name='monitor-mute',index=4 numid=17,iface=MIXER,name='monitor-mute',index=5 numid=24,iface=MIXER,name='monitor-pan' numid=25,iface=MIXER,name='monitor-pan',index=1 numid=26,iface=MIXER,name='monitor-pan',index=2 numid=27,iface=MIXER,name='monitor-pan',index=3 numid=28,iface=MIXER,name='monitor-pan',index=4 numid=29,iface=MIXER,name='monitor-pan',index=5 numid=18,iface=MIXER,name='monitor-solo' numid=19,iface=MIXER,name='monitor-solo',index=1 numid=20,iface=MIXER,name='monitor-solo',index=2 numid=21,iface=MIXER,name='monitor-solo',index=3 numid=22,iface=MIXER,name='monitor-solo',index=4 numid=23,iface=MIXER,name='monitor-solo',index=5 numid=38,iface=MIXER,name='monitoring' numid=37,iface=MIXER,name='output-meter' numid=31,iface=MIXER,name='output-mute' numid=30,iface=MIXER,name='output-volume' numid=4,iface=MIXER,name='playback-mute' numid=5,iface=MIXER,name='playback-solo' numid=3,iface=MIXER,name='playback-volume' numid=32,iface=MIXER,name='stream-playback-routing' ``` Access permissions for relevant character devices -------------------------------------------------- The executable manipulates below character devices to dispatch, and emit events from end to end. The '%u' is the numerical number of instance in each subsystem: * ALSA control character device (/dev/snd/controlC%u) * ALSA hwdep character device (/dev/snd/hwC%uD%u) * Linux firewire character device (/dev/fw%u) Feedback -------- Any feedback is welcome. For questions, please use mailing list of alsa-devel or alsa-users[7]. For issues, please use service of github.com[8]. Issues ------ The name of control elements are not fixed yet since the convention of name for element set is not clear yet for recording equipment. Users may feel inconvenience to which channel corresponds to which physical port. Furthermore, in the case that element set includes several elements, it's unclear that which element corresponds to which physical port as well. ALSA control core has no feature for the above issues at present. [1] https://github.com/alsa-project/snd-firewire-ctl-services [2] https://gitlab.gnome.org/GNOME/glib [3] https://github.com/alsa-project/alsa-gobject/ [4] https://github.com/alsa-project/libhinawa [5] https://www.rust-lang.org/ [6] https://doc.rust-lang.org/cargo/ [7] https://www.alsa-project.org/wiki/Mailing-lists [8] https://github.com/alsa-project/snd-firewire-ctl-services/issues Regards Takashi Sakamoto

3 years, 9 months

WIP, RFC: jack2_split

by Florian Paul Schmidt

Hi, I had a hunch that's there is a way to trade latency for parallelism in serial jack graphs (at least on jack2/jackdmp setups). Comments welcome.. https://github.com/fps/jack2_split README.md below: jack2_split A program that facilitates parallelism in serial jack graphs by introducing latency. Only useful for jack2/jackdmp - it does nothing but add latency in jack1 setups. What? If you have a jack processsing graph that looks like this: capture -> A -> B -> playback where A and B are jack clients, then A and B must be scheduled in series due to the linear dependency. Running A and B serially might produce xruns (i.e. violate the scheduling deadline imposed by jackd) while running only A or only B might not. jack2_split can be used to remedy the situation by using the following graph: capture -> A -> jack2_split -> B playback jack2_split breaks the serial dependency by registering two jack clients which respectively only have terminal input and output ports. It copies the buffers from its inputs to its outputs after the current process cycle. This introduces one additional period of latency into the graph, but allows jack2/jackdmp to schedule A and B in parallel (e.g. on two cores). -- https://fps.io

3 years, 9 months

[LAA] Guitarix2 release version 0.41.0

by Hermann Meyer

I'm pleased to announce the release of guitarix2-0.41.0 A virtual guitar amplifier for Linux running with jack (Jack Audio Connection Kit) released under the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This is a major release. It introduce some new features and fix several bugs Changelog: * Add Slovak translation by Jozef Riha * Fix issue #104 lv2 plugins contains executable stack, patch by Alexander Tsoy * Fix issue #105 Compile error on 0.40.0 * Fix issue #109 cannot initialize a variable of type 'char ' with an rvalue of type 'void ' * Fix issue #110 error: unknown type name 'va_list' * Add NSM support * Add midi out for tuner * Add low/high cut filter before tuner * GxTuner set to use same precision then the tuner in guitarix * Use tab-box for LV2 plugs with to much controls * Disable GxVibe, because it is broken * Fix several Bug's and hopefully don't introduce to much new one's You could get it here: https://sourceforge.net/projects/guitarix/ or here: https://github.com/brummer10/guitarix regards hermann

3 years, 9 months

[sound/usb/line6] Question on PODHD Edit features like implementation

by Nicolas SCHWARTZ Aurryon

Dear Linux Audio Dev Team, I am looking to re implement and publish with the help of Wireshark a software like Line6 PODHD 500x Edit for my POD HD500X (modification of guitar pedal effects). To do this I need to claim the usb interface that is already used by the snd-usb-podhd and redo the initialisation, also already done by snd-usb-podhd. Therefore, to have both the audio and the pedal management I would need to modify the module mentioned above. This would aim to create a bridge between kernel and the userspace, that redirects the usb urb bulk requests that are not used by the audio part, to an interface (only isochronous is used after the init). In the objective to be merged upstream in the future, how should I proceed: * Use midi interfaces and create a fake one, knowing that the proprietary but readable protocol is not midi compliant? * Create a char device for the podhd pedal boards? Within the same module? * Other suggestions? In the same way, I am looking for suggestion regarding the data transmitted within this interface. Would something like struct {int message_len, char * data} be sufficient to be transmitted at every urb bulk request? Thanks in advance, Nicolas SCHWARTZ PS: I can share with you my test code and my current analysis on the messages sent/received by the pod when clicking on buttons/sending message from the PC, if needed.

3 years, 9 months

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Linux-audio-dev July 2020