Linux-audio-dev

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7513 discussions

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

5 years, 1 month

[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

5 years, 1 month

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

5 years, 1 month

[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

5 years, 2 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.

5 years, 2 months

Release: New Session Manager Version 1.4.0

by software＠linuxaudio.org

Linuxaudio.org presents: New Session Manager Version 1.4.0 ## Summary The theme for this release is to fix known bugs and issues with both the original Non-Session-Manager ("nsmd") server as well as its GUI (our "nsm-legacy-gui"). Problems and inconsistencies that have piled up for years were finally cleaned up (full changelog below). Users do not need to take any action (besides updating), the session save-format remains unchanged. Client programs, or rather their developers, do not need to change or adjust anything; all changes are "under the hood". We have no self-hosted website yet, but plan to establish one in the future. Until then the project can be found on Github: https://github.com/linuxaudio/new-session-manager/ https://github.com/linuxaudio/new-session-manager/releases/tag/v1.4.0 ## Full Release Announcement: New Session Manager (NSM) is a tool to assist music production by grouping standalone programs into sessions. Your workflow becomes easy to manage, robust and fast by leveraging the full potential of cooperative applications. It is a community version of the "NON Session Manager" and free in every sense of the word: free of cost, free to share and use, free of spyware or ads, free-and-open-source. You can create a session, or project, add programs to it and then use commands to save, start/stop, hide/show all programs at once, or individually. At a later date you can then re-open the session and continue where you left off. All files belonging to the session will be saved in the same directory. Check your distributions in a few days for New-Session-Manager 1.4.0 You can find the source release on Github: https://github.com/linuxaudio/new-session-manager/releases/tag/v1.4.0 Bullet Points * Drop-In replacement for the non-session-manager daemon nsmd and tools (e.g. jackpatch) * Simple and hassle-free build system to make packaging easy * Possibility to react to sensible bug fixes that would not have been integrated into original nsmd * Stay upwards and downwards compatible with original nsmd * Conservative and hesitant in regards to new features and behaviour-changes, but possible in principle * Keep the session-manager separate from the other NON* tools Mixer, Sequencer and Timeline. * Protect nsmd from vanishing from the internet one day. * The goal is to become the de-facto standard music session manager for Linux distributions Changes since new-session-manager v1.3.2 (2020-06-20) Add documentation and manpages. Highlight: Provide updated API-Document (core documentation) on https://linuxaudio.github.io/new-session-manager/api/index.html Legacy-GUI: Overhaul look and feel. Rewrite labels and buttons with unambiguous descriptions. Protect text-input dialog windows from empty strings, like "Add New Client" or "New Session" Scale icons, support more icon formats. Show all icons and buttons when attaching to a running nsmd session Various small fixes. Always show correct session name, no matter how the session was loaded or how the GUI was started nsmd: NSM_API_VERSION_MINOR from 0 to 1 (1.0 -> 1.1) Repair nsmd to correctly send client data when running headless and a GUI announces later. ClientId generation now prevent collision with existing IDs. nsmd command line option --load-session to directly load one (Berkelder, Rik) Better detection of clients that failed to launch leads to faster session startup (by 5 seconds) Users get informed by client-label if an executable is not present on the system or permission denied Fixed reply for listing sessions from a plain "Done." to proper reply path with empty string as terminal symbol "/reply", "/nsm/server/list", "" Fix operation reply to last treated client instead to reply to sender (Picot, Mathieu / houston) /nsm/gui/session/name send consistent session name/relative-path pair to the annouced GUI, no matter how the session was loaded. nsm.h :optional-gui: support to nsm.h, for other applications to include and use. (Meyer, Hermann / brummer ) This is a joint release from multiple people under the linuxaudio.org "brand". https://github.com/linuxaudio/new-session-manager Greetings, dvzrv, falktx and nils

5 years, 2 months

Kernel Patch for Tascam US4X4

by Guy Sherman

Hi All, Further to my earlier email about a python utility I wrote for manipulating the non-class-compliant settings of the Tascam US4X4 USB Audio Interface, I have created a kernel patch to add the relevant ALSA controls for the device. I'm looking to get it tested before I submit it as a kernel patch... would be a pity to have to resort to "it works on my machine" when submitting a patch for the linux kernel! The patch file is here: https://raw.githubusercontent.com/guysherman/linux-kernel-patches/main/0001… It is based on 5.8.0-rc1. Please let me know if anyone is available to help. Kind regards, Guy. -- Guy Sherman *e:* guy(a)guysherman.com *w: *http://guysherman.com

5 years, 2 months

PSIndustrializer 0.2.6 released

by Yury Alyaev

Hi all, After a long period of lethargy, with a help from Wladimir J. van der Laan, I have revived Power Station Industrializer, a percussion sound synthesizer base on physical modelling. You can download it here: https://sourceforge.net/projects/industrializer/files/ What is new in psindustrializer-0.2.6: Code upgrade for build against modern environment (autotools, gtk+-2, gtkglarea is replaced by gtkglext, esound is replaced by pulseaudio) Jack audio driver GUI improvements Config and presets files syntax is improved (read compatibility with old formats is preserved) Sound drivers can be configurable (this facility is so far implemented for ALSA driver) Bugfixes Regards, Yury.

5 years, 2 months

B.SEQuenzr 1.6 (B.SEQuencer LV2 plugin)

by Sven Jaehnichen

Hello, a new version of B.SEQuenzr is just released. B.SEQuenzr is a programmable multi channel step sequencer. Synchronization options are added as new features. And it comes along with some basic factory presets (arpeggios, drum beats) now. Key features: * Selectable pattern matrix size (8x16, 16x16, 24x16, or 32x16) * Progammability via controls for playing direction, jump, skip, and stop options placeable to any position within the matrix * Autoplay or host / MIDI controlled playing * Handles multiple MIDI inputs signals (keys) in one sequencer instance * Use musical scales and / or drumkits * Scale & drumkit editor * Notes can be associated with four different, configurable output channels * Output channels connectable with individual MIDI channels What's new: * Select between * Restart from step 0, * Restart from step 0 and sync with running steps, * Or continue from running step if key pressed * Enable MIDI Thru (important for downstream generator plugins!) * Factory presets added (Techno, Standard Rock, Jazz, and Disco drumkits) * Compiler error with gcc10 fixed Project page: https://github.com/sjaehn/BSEQuencer/ Releases: https://github.com/sjaehn/BSEQuencer/releases Instructions: https://github.com/sjaehn/BSEQuencer/wiki Videos: https://www.youtube.com/watch?v=J6bU4GdUVYc https://www.youtube.com/watch?v=iERRKL7J-KU https://www.youtube.com/watch?v=Ih6_so7goGw Enjoy and have fun Sven Jaehnichen

5 years, 2 months

mcpdisp-0.1.2 release

by Len Ovens

MCPDISP is a utility to add a display on to a Mackie Control based control surface that does not have it's own display such as the bcf2000. This is important if banking is being used (the project has more than 8 tracks) and also provides things like timecode or bar/beat readouts. At present this is a jackd only utility though it should be possible to bridge to ALSA using a2jmidid. Perhaps a later version will move to ALSA MIDI instead. The latest version can be found at: https://github.com/ovenwerks/mcpdisp/releases/tag/mcpdisp-0.1.2 Some Packaging scripts were optimizing the buffer to the stack. This release fixes that. Licenced as GPL-2+. -- Len Ovens www.ovenwerks.net

5 years, 2 months

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Linux-audio-dev