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7502 discussions

rtirq update - 2013 edition (was: rtirq as systemd service?)

by Rui Nuno Capela

(apologies for the x post) > On 03/30/2013 11:50 AM, Simon Lewis wrote: > > Since fc17 upwards uses systemd and not sysvinit, should rtirq be made a > systemd service? > rtirq has been updated for both old sysvinit and the new systemd support. upstream packages available: http://www,rncbc.org/archive/#rtirq http://www,rncbc.org/archive/rtirq-20130402.tar.gz http://www,rncbc.org/archive/rtirq-20130402-31.src.rpm http://www,rncbc.org/archive/rtirq-20130402-31.noarch.rpm cheers && thanks -- rncbc aka Rui Nuno Capela rncbc(a)rncbc.org

12 years, 3 months

[ALPHA] ladspa.m.*

by Florian Paul Schmidt

Hi, after a somewhat productive weekend I'm happy to announce some alpha quality software (i.e. bug ridden, not feature complete) for your consideration and feedback :) But: release early, release often XD I went a little overboard with modularization and separation of concerns, so in the end it became four packages (with possibly one more in the future - a LV2 plugin to load the synths/instruments). Documentation is also very much lacking, but each package contains at lease a single example file to illustrate the usage. * ladspa.m - https://github.com/fps/ladspa.m ladspa.m is a header only c++ library to build and run general synthesis graphs made up out of LADSPA plugins. The interface is kept deliberately kept simple and unsafe, as it is expected that one uses higher level tools to build these synthesis graphs (e.g. using a library on top op ladspa.m.swig or ladspa.m.proto). * ladspa.m.swig - https://github.com/fps/ladspa.m.swig ladspa.m.swig are SWIG generated python bindings for ladspa.m. This allows building and running general synthesis graphs made up of LADSPA plugins from within python. This requires ladspa.m. NOTE: I just saw that the swig interface definition lacks the ability to connect outside buffers onto plugin ports. This will be fixed in the next few days.. * ladspa.m.proto - https://github.com/fps/ladspa.m.proto ladspa.m.proto contains google protobuf definitions for general synthesis graphs made up of LADSPA plugins. It also contains a definition for an instrument file format. This library does not depend on either of the two above. It becomes useful with the last package (ladspa.m.jack) and possibly in the future with an LV2 plugin to load and run these (to be announced when done). The python bindings generated for ladspa.m.proto can be used to generate synth and instrument files that can be loaded by ladspa.m.jack. The instrument file definition allows for polyphony while at the same time putting no constraints on the inner structure of the instrument (each voice is made up out of plugins, they can be identical or not between all voices).. An example is included which defines a simple sawtooth instrument with exponential envelopes and with 5 identical voices except for a different delay setting on each voice. https://github.com/fps/ladspa.m.proto/blob/master/example_instrument.py Pipe its output into a file called e.g. instrument.pb. This you can then load into ladspa.m.jack.instrument. Here's a little example of the generated instrument file loaded into ladspa.m.jack.instrument and playing a little 120bpm loop (from ardour3) with it: https://soundcloud.com/fps-2/t-m This also highlights the need for a higher level interface on top of it to ease the process.. * ladspa.m.jack - https://github.com/fps/ladspa.m.jack ladspa.m.jack is a library which allows loading ladspa.m.proto synth and instrument definition files into jack hosts that are provided as example clients. ladspa.m.jack.synth allows loading a synth definition file and run it in the jack graph. ladspa.m.jack.instrument allows loading an instrument definition file and provides a midi in port which allows playing the synth. But like I said this is all ALPHA software and I just announce it because someone else might have fun with it. Please report all issues that you find either per email to me, on LAD or LAU or on the issue trackers of the github projects.. Have fun, Flo -- Florian Paul Schmidt http://fps.io

12 years, 3 months

[ANN] QjackCtl 0.3.10 - The singing swan rehearsals...

by Rui Nuno Capela

Who would tell or whisper such a thing? Is this an april fool's announcement? nope. QjackCtl 0.3.10 is out! Website: http://qjackctl.sourceforge.net Project page: http://sourceforge.net/projects/qjackctl Downloads: - source tarball: http://downloads.sourceforge.net/qjackctl/qjackctl-0.3.10.tar.gz - source package (openSUSE 12.3): http://downloads.sourceforge.net/qjackctl/qjackctl-0.3.10-2.rncbc.suse123.s… - binary packages (openSUSE 12.3): http://downloads.sourceforge.net/qjackctl/qjackctl-0.3.10-2.rncbc.suse123.i… http://downloads.sourceforge.net/qjackctl/qjackctl-0.3.10-2.rncbc.suse123.x… Weblog (upstream support): http://www.rncbc.org License: QjackCtl is free, open-source software, distributed under the terms of the GNU General Public License (GPL) version 2 or later. Change-log: - Session infra-client management finally being added. - Preparations for Qt5 migration. - Transport tempo (BPM) precision display fixed to 4 digits. - Color-candy (dang old ANSI terminal?) escape sequences are now silently stripped from jackdbus messages captured log (one-liner from original patch by Brendan Jones, thanks). - List ALSA device card id. string instead of device number, while on setup dialog. - Japanese (ja) translation added (by Takashi Sakamoto). See also: http://www.rncbc.org/drupal/node/628 Enjoy && Have fun! -- rncbc aka Rui Nuno Capela rncbc(a)rncbc.org

12 years, 3 months

Is dynamics interpolation available in linuxsampler?

by Nikita Zlobin

Last time i tried to make a roll with G-Town Church Bassdrum, but it appears ugly. Did not try to humanize timing, but expecting it much better with interpolation. May be, it is some hidden feature, which is not used in most freeware gig and sfz banks?

12 years, 3 months

A request for a simple app

by Alex Stone

I've been working with large lscp files, over a hundred .idfs for muse 2, etc, for sometime now, and i'm pretty well knackered from manually creating large monolithic instrument config files of some sort or another, for the same sample library set, across apps. I propose the following, and i'm wiling to put some money in someone's pocket for this: A simple app (CLI is ok but GUI based preferred) that: 1) automatically converts lscp files containing single or multiple midi instrument maps into individual midnam files. 2) automatically converts muse2 .idf files into midnam files. 3) converts midnam files into muse2 .idf files Obviously needs to work properly, and create correct ( auto app checked) midnam and .idf files. App needs to be opensource (obviously), and public, for those other poor souls who have to struggle with large instrument files, particularly those using large sample libs with copious articulations per instrument, and for whom automation of these excruciating data processing tasks would save massive amounts of time and effort. Thanks, and if you're interested, contact me privately, Alex Stone.

12 years, 3 months

MusE 2.1.2 released

by Robert Jonsson

Hi all, Time for another update for general consumption, minor changes done but quite a few of them! Nearly arbitrary list of changes from the changelog: - Allow reading old drummaps for new style drumtracks - Added metronome icon in main window - Fixed moving events with keyboard in Drum editor - Added theme support, Light, Dark and Ardour so far - Added missing line draw shortcut (F) to drum editor. - Added new french translation from Yann Collette - Added: Pan and Zoom tools to editors. P + Z shortcuts. Added a Settings item for alternate behaviour. - Fixed: Pianoroll and Drum Editor 'Snap' boxes not remembering 1st or 3rd columns. - Fixed: Arranger 'Snap' was not stored or remembered. - Fixed: Accelerator buttons shift/ctrl/alt for moving/copying/cloning / restricting movement. - Fixed: Shift key restricting movement: Ignore snap setting now. - Fixed: Resize shift key ignore snap setting now. - Fixed: Draw new item shift key ignore snap setting now. - Fixed: Shift key was not snapping to vertical. - Fixed: ALL 'Speaker' related playing of notes. Works with new notes, moving notes, piano press etc. - Fixed: ALL 'Speaker' related notes now send true note-offs instead of zero-velocity note-ons. - Fixed: Drum 'Cursor' mode was playing double notes. - Fixed: New Drums 'Cursor' mode and instrument up/down movement was broken, jumping all over the place. - Added prebuilt PDF of manual (work in progress) - Improved: Shortcut listings: Added Wave/Score categories. Re-categorized several keys. Updated README.shortcuts - Improved: Right-click menus expanded. Now also shows 'Tools' menu when clicked on parts. - Added choice of new metronome with different sounds and adjustable volume. - Fixed gain adjustment with 'Other' choice in wave editor, it was reversed For more information and additional changes see the full changelog: http://lmuse.svn.sourceforge.net/viewvc/lmuse/trunk/muse2/ChangeLog?revisio… Find the download at: https://sourceforge.net/projects/lmuse/files/ MusE on! The MusE Team

12 years, 3 months

JACK latency chart

by Joel Roth

Hi all, I once saw a helpful chart showing how latency propagates through the JACK graph, through the capture and playback ports of each node. Can anyone provide a link? I want to make sure I understand correctly, that my app's latency callback should be checking capture latency at the input ports and setting playback latency on the output ports. Thanks, Joel -- Joel Roth

12 years, 3 months

JAudioLibs (JNAJack, etc.) code on GitHub

by Neil C Smith

Hi All, Just a note that I've extracted JNAJack (Java bindings for JACK) from the Praxis LIVE repository, along with other elements of the JAudioLibs code, and it's now on GitHub at https://github.com/jaudiolibs Should make it easier for people to work with (and contribute to!) the code. Downloads and other facilities are still on the Google Code site at http://code.google.com/p/java-audio-utils/ for now. Best wishes, Neil -- Neil C Smith Artist : Technologist : Adviser http://neilcsmith.net Praxis LIVE - open-source, graphical environment for rapid development of intermedia performance tools, projections and interactive spaces - http://code.google.com/p/praxis OpenEye - specialist web solutions for the cultural, education, charitable and local government sectors - http://openeye.info

12 years, 3 months

Mixing audio: Implementing pan and balance

by Tim E. Real

Hi, I need some advice, clear up some confusion: I noticed our app uses this pan formula: vol_L = volume * (1.0 - pan); vol_R = volume * (1.0 + pan); where volume is the fader value, pan is the pan knob value which ranges between -1.0 and 1.0, and vol_L and vol_R are the factors to be applied to the data when sending a mono signal to a stereo bus. When pan is center, 100% of the signal is sent to L and R. At pan extremities, the signal is boosted by 3dB. But according to [1], we should be using a Pan Law [2], where pan center is around 3dB to 6dB down and pan extremities is full signal. So I want to change how we mix mono -> stereo and use true Pan Law. I could add a Pan Law selector, seems like it might be useful for various studio acoustics. Then I noticed we use the same formula above to apply 'balance' (using the same pan knob) when sending a stereo signal to a stereo bus. But according to [3] we should be using a true balance control, not those same pan factors above. And according to [1]: "Note that mixers which have stereo input channels controlled by a single pan pot are in fact using the balance control architecture in those channels, not pan control." So I want to change how we mix stereo -> stereo and use true balance. But then I checked some other apps to see what they do. In an unofficial test I noticed that QTractor seems to do the same thing, that is, when pan is adjusted on a stereo track, one meter goes up while the other goes down. RG seems not to have stereo meters and Ardour I couldn't seem to make pan affect the meters, I will try some more. My questions: Is the pan formula above popular? What is the consensus on stereo balance - use a Pan Law, being the formula above or otherwise, or use a true balance? What should I do in the remaining case sending a stereo signal to a mono bus? If I am using a Pan Law as balance, the two signals will have already been attenuated at pan center so I could simply sum the two channels together. But if instead I use true balance, at center the two signals are 100%. So should I attenuate the signals before summing them to a mono bus? Currently as our pan formula above shows, there would be no attenuation. Thanks. Tim. [1] http://en.wikipedia.org/wiki/Panning_%28audio%29 [2] http://en.wikipedia.org/wiki/Pan_law [3] http://www.rane.com/par-b.html#balance

12 years, 3 months

jackmixdesk-0.3-r3

by Ulrich-Lorenz Schlueter

Hello list, after a long long time I removed some ugly bugs from JackMixDesk. Latest source package is available from: http://sourceforge.net/projects/jackmixdesk/files/jackmixdesk/jackmixdesk-0… Regards, Uli

12 years, 3 months

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Linux-audio-dev