Linux-audio-dev September 2016

linux-audio-dev@lists.linuxaudio.org

28 participants
19 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

ALSA Sequencer timestamp on event without scheduling

by Felipe Ferreri Tonello

Hello all, I have a question. I would like to send sequencer events without scheduling but with a timestamp information associated with. Is that possible? Thanks, Felipe

8 years, 4 months

Re: [LAD] aBLETON lINK

by Perry Nguyen

hi, I've posted about Ableton Link a number of times now on LM and LAD but I was never satisfactorily responded to.. Here's my post from LM https://linuxmusicians.com/viewtopic.php?f=1&t=14913 here's the same thing I posed on LAD http://linux-audio.4202.n7.nabble.com/ableton-link-and-live-tempo-changing-… well I hope someone sees my post this time. But anyway I'm just copying my message from LM if anyone has opinions: Hey rui, I've noticed the discussions on github/LAD (the latter of which i am still unable to post on[image: :?] ) and your PR to Link. It seems like you've made reasonable progress with it-- can you comment on how feasible the ideas I described in my original post are? I am still vaguely under the impression that if a Timebase master client is Link-capable then any transport-aware client (e.g. most LAU apps today) would be able to follow any tempo changes described by the master and therefore automatically have "Link support"-- from my understanding the JACK Timebase includes transport control and BPM information (though maybe not beat sync information like Link?). Then can't a timebase master client be Link-obedient just in regards to BPM but operate transport independently (since Link doesn't have transport a transport representation anyway)? Though after reading your post to LAD a couple times over it seems like there is possibly overlooked but important incongruity between BPM and "linear/real-time".. and perhaps that limits the ability of word-clock time designators like JACK from seamlessly following BPM? If that is the case it is still unclear to me what the specific technical details of that incongruity are.

8 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, 7 months

[ANN] Qtractor 0.7.9 - A Snobbier Graviton release

by Rui Nuno Capela

So it's the last equinox'16... And the last of the Qstuff* End of Summer'16 release parties [7][8]. Qtractor 0.7.9 (snobbier graviton) is now released! Release highlights: * Audio/MIDI metronome anticipatory offset (NEW) * Current clip highlighting (NEW) * SFZ sample file archive/zip bundling (NEW) * MIDI transpose Reverse tool (NEW) * MIDI (N)RPN running status and NULL support (NEW) * MIDI Controllers catch-up algorithm (FIX) * MIDI track Instrument menu (FIX) * JACK shutdown and buffer-size changes (FIX) 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: 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-0.7.9.tar.gz - source package: http://download.sf.net/qtractor/qtractor-0.7.9-27.rncbc.suse.src.rpm - binary packages: http://download.sf.net/qtractor/qtractor-0.7.9-27.rncbc.suse.i586.rpm http://download.sf.net/qtractor/qtractor-0.7.9-27.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 (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. And the boring complete change-log follows: - JACK buffer-size change handling has been deeply improved, now doing an immediate session restart, while preserving all external connections as much as possible. - Introducing an audio and MIDI metronome anticipatory offset, kind of latency compensation, to respective option settings cf. View/Options.../Audio, MIDI/Metronome/Offset (latency). - Fixed LADSPA plug-in preset switching, incidentally broken as NOP, ever since late Haziest Photon's crash-landed. - MIDI Track/Instrument cascading menus have been found empty broken on Qt5 builds, now fixed. - MIDI RPN/NRPN running status and RPN NULL reset command are now supported (input only). - Fixed a sure immediate crash on removing audio buses that are current targets of any active Aux-send inserts. - Fixed yet another old bummer that was reaping off assigned MIDI controllers on existing track's gain/volume or panning controls, when adding any single new track. - Fixed missing feedback on MIDI controllers assigned to any of monitor, record, mute and solo track/bus state buttons. - Eye-candy warning: the current clip, not necessarily the one currently selected, is now highlighted with a solid outline; linked MIDI clips are also highlighted with an alternate dashed outline. - SFZ file conversion, and bundling of the respective sample files, is now supported when saving as zip/archive (*.qtz). - Fixed track monitor, record, mute and solo dangling states, on Track/Duplicate command. - Slight regression on the LV2 State Files abstract/relative file-path mapping, trading QFileInfo::canonicalFilePath() for QFileInfo::absoluteFilePath(), and thus skipping all symlink dereferences in the process. - Fixed a one first linking/ref-counting glitch, affecting recently recorded MIDI clips which might have their initial clip length still un-quantized to MIDI resolution (BBT). - A brand new and discrete MIDI clip editor command tool has been added: MIDI Tools/Transpose/Reverse. - Discretely fixed MIDI Controllers catch-up algorithm. - Fixed a borderline mistake on plug-in parameter port index mapping to its corresponding symbolic name, especially if newer plug-in versions are loaded on older saved sessions. 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 [7] The QStuff* End of Summer'16 Release http://www.rncbc.org/drupal/node/1696 [8] Vee One Suite 0.7.6 - The Eleventh beta release http://www.rncbc.org/drupal/node/1699 See also: http://www.rncbc.org/drupal/node/1700 Enjoy && Have (lots of) fun. -- rncbc aka Rui Nuno Capela

8 years, 7 months

aBLETON lINK

by Tito Latini

What is the content of the network packets ? Regardless, I'll ignore software with that technologogy.

8 years, 7 months

spectmorph-0.3.1

by Stefan Westerfeld

spectmorph-0.3.1 has been released. Overview of Changes in spectmorph-0.3.1: ---------------------------------------- * Added plugins for LV2 and VST api. * New instruments: bassoon, cello, bass-trombone, reed-organ. * Added different templates to get standard morph plans quickly. * LV2|VST|JACK will start with default plan now (instead of empty plan). * Standard instrument set location (~/.spectmorph/instruments/standard): - plan templates can refer to instruments in that directory without storing any absolute path (index will be instruments:standard) - in almost any case, loading instruments isn't necessary anymore * Resize MorphPlanWindow automatically if operators are removed. * Changed time alignment during morphing: - morphed sounds should starty at the beginning of the note (no extra latency) - Start marker for instrument notes no longer necessary - SpectMorphDelay plugin no longer necessary * Some improvements for building new instruments: - make some smenc parameters configurable (--config option) - improvements to soundfont import - new fundamental frequency estimation for tune-all-frames - support global volume adjustment (instead of auto-volume) * Various bugfixes. What is SpectMorph? ------------------- SpectMorph is a free software project which allows to analyze samples of musical instruments, and to combine them (morphing). It can be used to construct hybrid sounds, for instance a sound between a trumpet and a flute; or smooth transitions, for instance a sound that starts as a trumpet and then gradually changes to a flute. Also interpolating between two samples of the same instrument (different attack velocity of a piano) could be interesting. SpectMorph is implemented in C++ and licensed under the GNU LGPL version 3 SpectMorph is still under development. This means: * the fileformat is not yet stable - instruments or morph plans may not work with newer versions of SpectMorph * the algorithms for synthesizing sounds are still under development - newer versions may sound different To sum it up: if you compose music using SpectMorph, don't expect newer versions to be compatible in any way. Integrating SpectMorph into your Work ------------------------------------- In order to make music that contains SpectMorph, you currently need to use Linux. There are four ways of integrating SpectMorph sounds into music you create: - LV2 Plugin, for any sequencer that supports it. - VST Plugin, especially for proprietary solutions that don't support LV2. - JACK Client. - BEAST Module, integrating into BEASTs modular environment. Links: ------ Website: http://www.spectmorph.org Download: http://www.spectmorph.org/downloads/spectmorph-0.3.1.tar.bz2 There are many sound samples on the website, which demonstrate morphing between instruments. -- Stefan Westerfeld, Hamburg/Germany, http://space.twc.de/~stefan

8 years, 7 months

[ANN] Vee One Suite 0.7.6 - The Eleventh beta release

by Rui Nuno Capela

Hello again! 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 yet another drum-kit sampler, are here released on their eleventh beta iteration, joining the so called Qstuff* End of Summer'16 release frenzy [10]. 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 common change-log says: - MIDI RPN/NRPN running status and RPN NULL reset command are now supported (input only). - The core engine implementation is now delivered as a shared object library, common to both the JACK stand-alone client and the LV2 instrument plug-in. - Discretely fixed MIDI Controllers catch-up algorithm. And here they come again! **synthv1 - an old-school polyphonic synthesizer [1]** synthv1 0.7.6 (eleventh official beta) released! 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/synthv1-0.7.6.tar.gz - source package: http://download.sf.net/synthv1/synthv1-0.7.6-29.rncbc.suse.src.rpm - binary packages (openSUSE Tumbleweed): http://download.sf.net/synthv1/synthv1-0.7.6-29.rncbc.suse.i586.rpm http://download.sf.net/synthv1/synthv1-0.7.6-29.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 0.7.6 (eleventh official beta) released! 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/samplv1-0.7.6.tar.gz - source package: http://download.sf.net/samplv1/samplv1-0.7.6-29.rncbc.suse.src.rpm - binary packages (openSUSE Tumbleweed): http://download.sf.net/samplv1/samplv1-0.7.6-29.rncbc.suse.i586.rpm http://download.sf.net/samplv1/samplv1-0.7.6-29.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 0.7.6 (eleventh official beta) released! 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/drumkv1-0.7.6.tar.gz - source package: http://download.sf.net/drumkv1/drumkv1-0.7.6-25.rncbc.suse.src.rpm - binary packages (openSUSE Tumbleweed): http://download.sf.net/drumkv1/drumkv1-0.7.6-25.rncbc.suse.i586.rpm http://download.sf.net/drumkv1/drumkv1-0.7.6-25.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 Licence: 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. 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 [10] The QStuff* End of Summer'16 Release http://www.rncbc.org/drupal/node/1696 See also: http://www.rncbc.org/drupal/node/1699 Enjoy && have (lots of) fun ;) -- rncbc aka. Rui Nuno Capela

8 years, 7 months

Re: [LAD] Ableton Link GPL...

by Rui Nuno Capela

On 09/15/2016 03:33 PM, Rui Nuno Capela wrote: > On 09/15/2016 11:58 AM, Daniel Swärd wrote: >> Hi. >> >> Now that Ableton Link has been publically released as GPL, does anyone >> have any ideas/plans to integrate it into your projects? >> >> http://ableton.github.io/link/ >> > > i do (qtractor) > hmm.. been trying converting the linkhut example to jack and ... it plays well, links well with peers over the W/LAN, but dang it does draw upwards any cpu load chart over here :/~ who's willing to try this? here's my (early) test code: (please note that it includes the needed ableton::Link stuff verbatim): http:/www.rncbc.org/datahub/ableton-link-jack-1.tar.gz nb. you also need asio-dev(el) installed (http://think-async.com/) cheers -- rncbc aka. Rui Nuno Capela

8 years, 7 months

Re: [LAD] Tascam US-16x08 0644:8047

by OnkelDead

On my UbuntuStudio 16.04 (4.4.0-36-lowlatency) the streaming interfaces (16xin & 8xout) works perfect with the stock driver / JACK. The intention of my custom snd-usb-audio is to offer the build-in DSP features of the US-16x08. So I didn't made changes to the streaming interfaces but added some mixer quirks to the stock driver. Add. I did coded a custom mixer application (QT5) to control the EQ and compressor function via those new mixer interfaces. ranokio wrote > With JAck capture only works fine on Playback only mode, I have 8 > independent neat outputs If you have problems with the streaming interfaces, I guess my driver wont help you. You may investigate the diff-file based on my changes in Ubuntu 16.04 which you'll find here <http://www.paraair.de/snd-usb-audio/us16x08.diff> . Note! Because I'd never investigate Fedora sources, I assume you should NOT apply the patch to your kernel source directly. Greets Detlef -- View this message in context: http://linux-audio.4202.n7.nabble.com/Tascam-US-16x08-0644-8047-tp96678p101… Sent from the linux-audio-dev mailing list archive at Nabble.com.

8 years, 7 months

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Linux-audio-dev September 2016