Linux-audio-dev June 2016

linux-audio-dev@lists.linuxaudio.org

8 participants
10 discussions

by Tim Goetze

http://quitte.de/dsp/caps.html The latest release of the caps audio plugin suite contains a number of bug fixes and improvements as well as changes intended to make it more suitable for low-power systems. http://quitte.de/dsp/caps.html#CHANGES Most notably, support for a variety of little-used features has been dropped, reducing the binary size by roughly a third. There's also a new plugin implementing simplistic linear emulation of several guitar amplifier loudspeaker cabinets with reduced computational complexity: http://quitte.de/dsp/caps.html#CabinetIII The compressor plugins now report current gain reduction: http://quitte.de/dsp/caps.html#Compress http://quitte.de/dsp/caps_0.9.24.tar.bz2 Cheers, Tim

6 years, 6 months

Hi, I'm new

by Guy Sherman

Hi all, I just found this list after being directed to the IRC channel over the weekend. I'm new here! Lately I've been dabbling in a bit of open-source audio development (I say open-source rather than linux, because I've been dabbling on both linux and windows). Anyhow, amongst other things I've been trying to teach myself about DSP, so I wrote a really (really, really, really) naive distortion plugin. I was wondering if anyone would be interested in taking a look at it and giving me some feedback, and tips on where to go next. I wrote a little about it here: http://guysherman.com/2015/08/30/my-first-ever-audio-plugin/ And the code is at: https://github.com/guysherman/si-plugins I've got some other projects on the boil that I've been talking about with the crew from the Ardour list, which I'll mention here when they take shape a little more. Cheers, Guy. -- Guy Sherman *e:* guy(a)guysherman.com *w: *http://guysherman.com

8 years, 6 months

Tascam US-16x08 0644:8047

by Greg

Greetings, I am fairly new to USB dev (in linux in particular, but also in general), but I would very much like to try to get support for the above device working in snd-usb-audio. - Is this an appropriate place to discuss snd-usb-audio? - Are there any recommended reading pointers for behavior of the quirk table? I patched parse_audio_format_rates_v2(), get_sample_rate_v2(), and set_sample_rate_v2(), and through some sort of beginner luck was able to get aplay audio out of the first two channels. That was incomplete hackery though (eg fixed sample rate), and I would like to learn how to properly add quirk support. There have been other reports that this device worked OOTB, but I fail to see how! I've also been examining the traffic to the device with wireshark and a win7 vm, but the learning curve for USB is a bit steep, so I am digesting. (: If anyone can provide suggestions on lsusb output alone, here's what I have: http://pastebin.com/pA9MLQet cheers, Greg [x-post from alsa-devel due to empty thread - see: http://mailman.alsa-project.org/pipermail/alsa-devel/2015-July/094682.html]

8 years, 7 months

io GNU/Linux 2016.03 out

by Manu Kebab

Hi all :) A new release of io GNU/Linux is available for download (32 and 64-bits) Features: * Fully configured system for live and/or install * Kernels 4.6.2 and 4.6.2-rt * Enlightenment e21-rc as window manager * All sounds through Jack2 * Hundred of audio, graphics, video, internet, utilities and system programs. Get it at http://io.gnu.linux.free.fr/ Feedbacks welcome, enjoy MK

8 years, 9 months

[ANN] Qtractor 0.7.8 - The Snobby Graviton is out!

by Rui Nuno Capela

Qtractor 0.7.8 - The Snobby Graviton is out! ------------------------------------------- So it's first solstice'16... The world sure is a harsh mistress... yeah, you read that right! <a href="http://en.wikipedia.org/wiki/The_Moon_Is_a_Harsh_Mistress">Heinlein's Moon</a> have been just intentionally rephrased. Yeah, whatever. Just about when the UK vs. EU is there under close scrutiny and sizzling winds of trumpeting (pun intended, again) coming from the other side of the pond, we all should mark the days we're living in. No worries: we still have some feeble but comforting news: Qtractor 0.7.8 (snobby graviton) is out! Nevertheless ;) 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. Change-log: - MIDI file track names (and any other SMF META events) are now converted to and from the base ASCII/Latin-1 encoding, as much to prevent invalid SMF whenever non-Latin-1 UTF-8 encoded MIDI track names are given. - MIDI file tempo-map and location markers import/export is now hopefully corrected, after almost a decade in mistake, regarding MIDI resolution conversion, when different than current session's setting (TPQN, ticks-per-quarter-note aka. ticks-per-beat, etc.) - Introducing LV2 UI Show interface support for other types than Qt, Gtk, X11 and lv2_external_ui. - Prevent any visual updates while exporting (freewheeling) audio tracks that have at least one plugin activate state automation enabled for playback (as much for not showing messages like "QObject::connect: Cannot queue arguments of type 'QVector<int>'"... anymore). - The common buses management dialog (View/Buses...) sees the superfluous Refresh button finally removed, while two new button commands take its place: (move) Up and Down. - LV2 plug-in Patch support has been added and LV2 plug-ins parameter properties manipulation is now accessible on the generic plug-in properties dialog. - Fixed a recently introduced bug, that rendered all but one plug-in instance to silence, affecting only DSSI plug-ins which implement DSSI_Descriptor::run_multiple_synths() eg. fluidsynth-dssi, hexter, etc. Website: http://qtractor.sourceforge.net Project page: http://sourceforge.net/projects/qtractor Downloads: http://sourceforge.net/projects/qtractor/files - source tarball: http://download.sf.net/qtractor/qtractor-0.7.8.tar.gz - source package: http://download.sf.net/qtractor/qtractor-0.7.8-26.rncbc.suse.src.rpm - binary packages: http://download.sf.net/qtractor/qtractor-0.7.8-26.rncbc.suse.i586.rpm http://download.sf.net/qtractor/qtractor-0.7.8-26.rncbc.suse.x86_84.rpm Git repos: http://git.code.sf.net/p/qtractor/code https://github.com/rncbc/qtractor.git https://gitlab.com/rncbc/qtractor.git https://bitbucket.org/rncbc/qtractor.git Wiki (on going, help wanted!): http://sourceforge.net/p/qtractor/wiki/ 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 http://qtractor.sourceforge.net [2] Qt framework, C++ class library and tools for cross-platform application and UI development http://qt.io/ [3] JACK Audio Connection Kit http://jackaudio.org [4] ALSA, Advanced Linux Sound Architecture http://www.alsa-project.org/ [5] Linux Audio consortium of libre software for audio-related work http://linuxaudio.org [6] GPL - GNU General Public License http://www.gnu.org/copyleft/gpl.html See also: http://www.rncbc.org/drupal/node/1057 Enjoy && Have (lots of) fun. -- rncbc aka Rui Nuno Capela

8 years, 10 months

[ANN] Vee One Suite 0.7.5 - The Tenth beta is out!

by Rui Nuno Capela

Hiya! The 'Vee One Suite' aka. 'the gang of three' old-school 'homebrew' software instruments, respectively synthv1 [1] as a polyphonic subtractive synthesizer, samplv1 [2] a polyphonic sampler synthesizer and drumkv1 [3] as one drum-kit sampler, are here released once again, now in their tenth reincarnation. All still available in dual form: - a pure stand-alone JACK [4] client with JACK-session, NSM [5] (Non Session management) and both JACK MIDI and ALSA [6] MIDI input support; - a LV2 [7] instrument plug-in. The esoteric change-log goes like this: - LV2 Patch property parameters and Worker/Schedule support are now finally in place, allowing for sample file path selections from generic user interfaces (applies to samplv1 [2] and drumkv1 [3] only). - All changes to most continuous parameter values are now smoothed to a fast but finite slew rate. - All BPM sync options to current transport (Auto) have been refactored to new special minimum value (which is now zero). - In compliance to the LV2 spec. MIDI Controllers now affect cached parameter values only, via shadow ports, instead of input control ports directly, mitigating their read-only restriction. - Make sure LV2 plug-in state is properly reset on restore. - Dropped the --enable-qt5 from configure as found redundant given that's the build default anyway (suggestion by Guido Scholz, while for Qtractor, thanks). The Vee One Suite are free, open-source Linux Audio [9] software, distributed under the terms of the GNU General Public License (GPL) [8] version 2 or later. And then again! **synthv1 - an old-school polyphonic synthesizer [1]** synthv1 0.7.5 (tenth official beta) is out! synthv1 is an old-school all-digital 4-oscillator subtractive polyphonic synthesizer with stereo fx. LV2 URI: http://synthv1.sourceforge.net/lv2 website: http://synthv1.sourceforge.net downloads: http://sourceforge.net/projects/synthv1/files - source tarball: http://download.sf.net/synthv1/synthv1-0.7.5.tar.gz - source package: http://download.sf.net/synthv1/synthv1-0.7.5-28.rncbc.suse.src.rpm - binary packages (openSUSE Tumbleweed): http://download.sf.net/synthv1/synthv1-0.7.5-28.rncbc.suse.i586.rpm http://download.sf.net/synthv1/synthv1-0.7.5-28.rncbc.suse.x86_84.rpm git repos: http://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 0.7.5 (tenth official beta) is out! samplv1 is an old-school polyphonic sampler synthesizer with stereo fx. LV2 URI: http://samplv1.sourceforge.net/lv2 website: http://samplv1.sourceforge.net downloads: http://sourceforge.net/projects/samplv1/files - source tarball: http://download.sf.net/samplv1/samplv1-0.7.5.tar.gz - source package: http://download.sf.net/samplv1/samplv1-0.7.5-28.rncbc.suse.src.rpm - binary packages (openSUSE Tumbleweed): http://download.sf.net/samplv1/samplv1-0.7.5-28.rncbc.suse.i586.rpm http://download.sf.net/samplv1/samplv1-0.7.5-28.rncbc.suse.x86_84.rpm git repos: http://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 0.7.5 (tenth official beta) is out! drumkv1 is an old-school drum-kit sampler synthesizer with stereo fx. LV2 URI: http://drumkv1.sourceforge.net/lv2 website: http://drumkv1.sourceforge.net downloads: http://sourceforge.net/projects/drumkv1/files - source tarball: http://download.sf.net/drumkv1/drumkv1-0.7.5.tar.gz - source package: http://download.sf.net/drumkv1/drumkv1-0.7.5-24.rncbc.suse.src.rpm - binary packages (openSUSE Tumbleweed): http://download.sf.net/drumkv1/drumkv1-0.7.5-24.rncbc.suse.i586.rpm http://download.sf.net/drumkv1/drumkv1-0.7.5-24.rncbc.suse.x86_84.rpm git repos: http://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 References: [1] synthv1 - an old-school polyphonic synthesizer http://synthv1.sourceforge.net/ [2] samplv1 - an old-school polyphonic sampler http://samplv1.sourceforge.net/ [3] drumkv1 - an old-school drum-kit sampler http://drumkv1.sourceforge.net/ [4] JACK Audio Connection Kit http://jackaudio.org/ [5] NSM, Non Session Management http://non.tuxfamily.org/nsm/ [6] ALSA, Advanced Linux Sound Architecture http://www.alsa-project.org/ [7] LV2, Audio Plugin Standard, the extensible successor of LADSPA http://lv2plug.in/ [8] GNU General Public License http://www.gnu.org/copyleft/gpl.html [9] Linux Audio consortium of libre software for audio-related work http://linuxaudio.org See also: http://www.rncbc.org/drupal/node/1048 Enjoy && have lots of fun ;) -- rncbc aka. Rui Nuno Capela

8 years, 10 months

mididings not compatible with Boost 1.60 ?

by Jonathan Brickman

Just tried to run a mididing [sic?] with Boost 1.60. Using the latest git of mididings. Got this: TypeError: No to_python (by-value) converter found for C++ type: boost::shared_ptr<mididings::backend::BackendBase> I found many similar reports with other tools, all referencing Boost 1.60, all talking about reverts to Boost 1.5* as the solution. Anyone have other ideas? I'd rather not revert Boost if I don't have to do so. -- *Jonathan E. Brickman jeb(a)ponderworthy.com <http://login.jsp/?at=02e47df3-a9af-4cd9-b951-1a06d255b48f&mailto=jeb@ponder…> (785)233-9977* *Hear us at http://ponderworthy.com <http://ponderworthy.com> -- CDs and MP3s now available! <http://ponderworthy.com/ad-astra/ad-astra.html>* *Music of compassion; fire, and life!!!*

8 years, 10 months

IEM Music Residency Program 2017 - Call for Applications

by IOhannes m zmoelnig

(sorry for cross-posting; please distribute) The IEM – Institute of Electronic Music and Acoustics – in Graz, Austria is happy to announce its call for the 2017 Artist-in-Residence program. http://residency.iem.at/ The residency is aimed at individuals wishing to pursue projects in performance, composition, installation and sound art, development of tools for art production and related areas. Individuals are asked to submit a project proposal that is related to the fields of artistic research of the IEM, as: * Spatialization/higher-order Ambisonics * Sonic Interaction Design * Audio-visuality * Algorithmic Composition * Algorithmic Experimentation * Standard and non-standard Sound Synthesis * Live Coding Duration of residency: 5 months Start date: June 1st 2017 (negotiable) Monthly salary: approx. EUR 1100 (net) *APPLICATION DEADLINE: 1st of October 2016* _The Institute:_ The Institute of Electronic Music and Acoustics is a department of the University of Music and Performing Arts Graz founded in 1965. It is a leading institution in its field, with more than 25 staff members of researchers and artists. IEM offers education to students in composition and computer music, sound engineering, contemporary music performance and musicology. It is well connected to the University of Technology, the University of Graz as well as to the University of Applied Sciences Joanneum through three joint study programs. The artwork produced at IEM is released through the Institute's own OpenCUBE and Signale concert series, as well as through various collaborations with international artists and institutions. IEM's main activities are centered around the following research areas * Computer Music * Artistic Research * Signal Processing and Acoustics _What we expect from applicants:_ * A project proposal that adds new perspectives to the Institute's activities and resonates well with the interests of IEM. * Willingness to work on-site in Graz for the most part of the Residency. * Willingness to exchange and share ideas, knowledge and results with IEM staff members and students, and engage in scholarly discussions. * The ability to work independently within the Institute. * A dissemination strategy as part of the project proposal that ensures the publication of the work, or documentation thereof, in a suitable format. This could be achieved for example through the release of media, journal or conference publication, a project website or other means that help to preserve the knowledge gained through the Music Residency and make it available to the public. * A public presentation as e.g. a concert or installation, which presents the results of the Artist Residency. _What we offer:_ * 24/7 access to the facilities of the IEM. * Exchange with competent and experienced staff members. * A desk in a shared office space for the entire period and access to studios including the CUBE which has a 24-channel loudspeaker system and infrared motion tracking, according to availability. * During the period from July 1st until end of September the resident will have extensive access to the studios of the IEM. * Regular possibilities for contact and exchange with peers from similar or other disciplines. * Infrastructure (electroacoustic music studios, icosahedral loudspeaker array, motion capture technology). * Concert and presentation facilities (CUBE 24 channel loudspeaker concert space). * A monthly salary of approx. EUR 1100 net per month in addition to health and accident insurance. _What we cannot offer to the successful applicant:_ * We can not provide any housing. * We also cannot provide continuous assistance and support, although the staff is generally willing to help where possible. * We can not offer any additional financial support for travel or material expenses. An application form providing more information is available at http://residency.iem.at/ Feel free to contact residency(a)iem.at <mailto:residency@iem.at>if you have any questions.

8 years, 10 months

Downtime linuxaudio.org web services

by Jeremy Jongepier

Dear all, Due to maintenance to the network that the linuxaudio.org server is part of there will be scheduled downtime of all websites and some other services from Friday June 2 23:00 until Saturday June 3 09:00 EST. We apologize for any inconvenience this might cause. Best regards, Jeremy Jongepier root(a)linuxaudio.org

8 years, 10 months

DSSI, OSC and Ladspa UUID vs MIDI channel

by Joël Krähemann

Hi all Could someone explain me why the MIDI channel is used to identify DSSI instances? You could use the URL instead. Bests, Joël

8 years, 10 months

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Linux-audio-dev June 2016