Linux-audio-dev

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7450 discussions

by Chris Cannam

dssi-vst 0.6 released! ====================== The 0.6 release of dssi-vst is now available. dssi-vst is a DSSI plugin wrapper for Win32 VST effects and instruments with GUI support, allowing them to be loaded into any DSSI host. dssi-vst is available from the download page at http://dssi.sourceforge.net/ The 0.6 release contains a single fix to a crash on startup in the vsthost program. In other respects it is unchanged from 0.5. Chris

16 years, 8 months

Sample audio recorded at 192/24

by Jon Smirl

Can anyone point me to some uncompressed sample audio recorded at 192K samples with 24 bit precision? -- Jon Smirl jonsmirl(a)gmail.com

16 years, 9 months

[ANN] Qtractor 0.1.0 (frivolous debutante) released!

by Rui Nuno Capela

Can't hold it anymore... :) Since its primordial presentation on the LAC2007@TU-Berlin, almost one year ago, I guess it's finally ready for an official public release. So here it goes. Qtractor development has been going stealthy but has been matured nicely. Still alpha however, but quite practical nevertheless. Or so I believe. Yes, things might get bumpy, faster or slower though, we never know in advance. And quite frankly I don't give a damn whether how it might progress from now. But it will progress, that's what I shall write here engraved ;) Trust me. Qtractor has been my hobby, kind of personal purpose in life and should stay in that status for quite some time. You probably have noticed there's too many buts in this discourse of mine, and guess what? there follows some more for your pleasant delight. As long as all its ecosystem bears sustainability; no hidden thoughts; it's all about JACK, ALSA and ultimately Linux that I'm counting on. I've made myself ascertain: I will make no effort, whatsoever, in doing any kind of cross-platform dance. Although it seem feasible, just don't expect that kind of behavior from this side of the party. I'm not obliged to. I'm happy now with what I've got and to what has been achieve in this recent years. Linux is my home and you better get it right, I'm comfortable with it. It could be seen as my "masterpiece", although you might find I'm no master at all. Take it as my pet project, because, in fact, it is just that, really! If you feel minimally interested, you might want to come along and be welcome. I'll cherish you, that's what friends are. Willing to share the journey, and follow the turns. No commitments, just fun! Now, after that bunch of BS, let's get the facts straight, right behind the thoughts: Qtractor 0.1.0 (frivolous debutante) has been released! Good grief. As always, everyone is welcome to grab the source and also some selected binary packages, available from the official project site: http://qtractor.sourceforge.net http://sourceforge.net/projects/qtractor Direct link for the source tarball download: http://downloads.sourceforge.net/qtractor/qtractor-0.1.0.tar.gz For the clueless, a refurbished whitepaper is also available: http://downloads.sourceforge.net/qtractor/qtractor-0.1.0-whitepaper.pdf Also of note is this (strong) invitation to follow my personal blurbs, right from the upstream blog and forum site: http://www.rncbc.org Here follows the change-log. as recorded since that one last previous pre-release, which was tagged as 0.0.9.778 (adolescence prime) on the late year: - Audio clip time-stretching makes its debut, with code adapted and refactored from the SoundTouch library, under the (L)GPL umbrella. - New "Options.../Audio/Playback/Quick seek time-stretching" global option, providing a quick seek mode (hierarchical search) while doing all audio buffer time-stretching. - Changing session tempo will automatically apply the corresponding time-stretch percent factor to all in-place audio clips. Audio clip dialog also includes a new time-stretch property setting. - Tempo changes are now affecting clip offsets correctly, keeping the clip offset constant in time units (ticks), as are clip start and length properties already. - Mixer splitter sizes are now properly saved/restored when hidden. - Extended multi-selection is now featured on the files widget; all drag and drop functionality has been almost completely rewritten. - SSE optimization is now enabled where available (via configure). - Options for having separate dedicated ports for the audition/pre- listening player output, audio metronome output, MIDI control input/output and MIDI metronome output, are now in place. - A brand new subtle option sneaks in, affecting the drag-and-drop of the main track-view: View/Options.../Drop multiple audio files into the same track, whether to drop multiple external files into new or existing track as concatenated audio clips. - The audio metronome makes its debut as an alternative to the MIDI existing one; parameters include bar and beat audio sample files, accessible from the View/Options.../Audio/Metronome dialog. - Files widget action refactorization; the files context menu gets its due item icons and a new menu item for direct audio player accessibility. - MIDI time resolution changes (ppqn, ticks per beat) now tries to keep all session MIDI clip times unchanged as far as possible. - MIDI channel volume and panning control change events, CC#7 and CC#10 respectively, are now rendered unfiltered on playback . - First rendition of the long due implementation of an audition or pre-listening audio player is now in place; the files window got this new play/stop control button on its lower-right corner. - Actual instrument definition note (keys) and controller names are now in effect on the MIDI editor, whenever applicable. - Fixed instrument bank selection method, "Bank MSB" (2), which was broken enough to never send the correct bank number. - Mouse-wheel horizontal scrolling is now accessible on every view, while pressing a modifier key (Shift or Ctrl). - New auto-backward transport option: when enabled the playhead will be reset backward automatically whenever transport stops playing. - A suicide-crash has been fixed while invoking the bus dialog from the respective mixer bus strip context menu. - Master (default) buses are always set to Duplex mode, being now an enforced update policy while on the Buses dialog. - A stupid lockup bug (infinite loop) was spotted on the track bus assignment method and squashed (thanks, lexridge). - New keyboard shortcuts for toggling the Connections tool (F8) and the mighty Mixer tool (F9) windows. - Avoid showing a context menu while right-clicking on time rulers. - Audio clip waveform drawing gets additional closing points. - It is now possible to change the length/size of a clip by dragging its left or right edges, while in the main track-view. Shift+drag will also time-stretch to the resulting audio clip length. - Another off-by-one mistake was corrected, which was causing audio clips to go out-of-sync on loop turnover boundary; also changed the loop turnaround strategy, now honoring already cached periods. - A race-condition has been mitigated in the audio-buffer thread, that was exposed and lead to sudden application freezing upon changing some composite audio clip commands. - Take absolute audio peak values only, making peak files a little bit shorter and hopefully faster to load and draw as waveforms. Ah, never's too late to wish you all a Happy New Year! Cheers && Enjoy -- rncbc aka Rui Nuno Capela rncbc(a)rncbc.org

16 years, 9 months

wcnt-1.26-pre

by james jwm-art net

Pre-release of Wav Composer Not Toilet 1.26 wcnt is a not-real-time commandline text-file-based modular synth/sequencer/sampler for GNU/Linux to generate WAV audio files. Download from: https://sourceforge.net/project/showfiles.php?group_id=76646&package_id=256… Website: http://wcnt.sourceforge.net -------------------------------------------------------------------------- This is the second release building up to wcnt-1.26 Since wcnt-1.25.5, the program has undergone many important changes. * libsndfile: the audio file IO lib from mega-nerd.com allows wcnt to read and write *WAV* audio in other data formats besides 16bit pcm. Consequently, all 16bit 'audio' inputs and outputs have been removed. *** Make sure you have it installed *** :) * LADSPA: a number of modules (9) have been created to use a select few LADSPA plugins. These provide much better filters, reverb, limiting, and compression. More might be added in future. * orbit module: impliments three orbit fractals which iterate upon a trigger, and the output of which is scaled (via an iteration test) within the -1.0 to +1.0 range. * adsr_scaler data object: allows indivdual sections of previously defined adsr modules to be scaled on the time axis. it's quick and easy. * improved command line option handling: help describing the command line options. several new options such as --dont-run and --no-title. module help now lists the modules sorted into three alphabetical collumns to make life easier. * many memory leaks plugged, and numerous operational bugs squashed. * no more -ffast_math compiler optimizations causing dodgy calculations. * removed sine_wave and tri_wave modules altogether. * wave module: a new easy-to-use module for quickly generating sine, triangle, and sawtooth waveforms and a number of variations of these outputting in the 0.0 to +1.0 range (instead of -1.0 to +1.0). * wave_phase module: comes close to the old sine_wave and triangle_wave implimentations. seperate phase trigger and phase_step inputs, and seperate phase_step input for a shaping waveform. improved algorythm means it's more likely to do what it's meant to :). new parameter to invert every other phase (or every other partial phase etc), combined with shaping (ie multiplication of two waveforms) allows a greater variety of waveforms to be created. * dc_filter and rms modules: no longer do their calculations in such an extremely deffective manner. * deg_size type inputs and outputs renamed to the far more sensible phase_step type. * constant_freq and constant_note: two new constant modules which output translations of their parameter, so they're independant of the sample rate unlike doing the same thing with the constant module. * balance module: this is the modifier module renamed to show what it actually does: balance two signals. * modifier module: does something much more interesting than balance two signals - ie combining two waveforms to create a third. * many code changes and improvments. -------------------------------------------------------------------------- ***** Please note the online help at wcnt.sf.net is now out of date. I've begun working on inline help, the beginnings of which are included as a number of text files. The text files provide short descriptions and guidlines on the usages of individual modules. ***** All your old .wc files will now be broken with this version. Sorry - things change as I slowly learn. -------------------------------------------------------------------------- Download from: https://sourceforge.net/project/showfiles.php?group_id=76646&package_id=256… Website: http://wcnt.sourceforge.net best regards, james jwm-art net

16 years, 9 months

JJack 0.3 released - JACK for Java

by Jens Gulden

Hello, JJack 0.3 has been released: http://jjack.berlios.de/ JJack is a JACK audio driver for the Java Sound API and a framework for the Java programming language. It allows Java applications to use the JACK Audio Connection Kit. Changes in release 0.3: - now works as Java Sound driver for JACK, just add lib/jjack.jar to the classpath - includes pre-compiled native libraries for i386/Linux, amd64/Linux and Mac OS - ability to auto-load native library from local lib folder on Linux systems - several bug-fixes and feature additions Happy New Year 2008, Jens Gulden

16 years, 9 months

LAC 2008 : Booking hotels...

by Marc-Olivier Barre

On Aug 5, 2007 11:48 AM, LAC2008 Team <lac(a)linuxaudio.org> wrote: > Linux Audio Conference 2008 > Lectures / Demos / Workshops / Concerts / Linux Soundnight > Köln/Cologne, 28.2.-2.3.2008 > > The 6th Linux Audio Conference is taking place in Cologne (Germany) Feb 28th to > March 2nd 2008. > > The Academy of Media Arts[1], Cologne, is proud to host the Linux Audio Conference > 2008[2], where once a year programmers and artists, musicians, composers and > practioneers gather to discuss and explore new and important developments in > making music and sounds with Linux and Open Source software. Will there be a list of nearby hotels posted on lac.linuxaudio.org ? I'd like to be able to book in advance. Cheers, __________________ Marc-Olivier Barre, MarcO'Chapeau.

16 years, 9 months

Re: [LAD] [Jackit-devel] [PATCH] jack dbus and logs improvement

by Nedko Arnaudov

Dave Robillard <dave(a)drobilla.net> writes: > Hi all, > > Attached is a big patch of nedko's logs, midi, and dbus changes with > modifications. I removed the (IMO confusing and unnecessary) split of > jackd (nuking some redundant code) and made the single jackd executable > work as it always has, or in dbus control mode when run as jackd --dbus > > Example: > > $ ps aux | grep jack > dave 19064 0.0 0.0 3920 572 pts/2 S+ 20:56 0:00 > grep jack > > > $ jack_control start > --- start > > > $ ps aux | grep jack > dave 19067 0.5 0.2 74992 5804 ? Ssl 20:56 0:00 > /usr/local/bin/jackd --dbus > dave 19073 0.0 0.0 3916 568 pts/2 S+ 20:56 0:00 > grep jack > > > $ jack_control stop > --- stop > > $ ps aux | grep jack > dave 19076 0.0 0.0 3920 572 pts/2 S+ 20:56 0:00 > grep jack > > (All other jackd args and functionality remain completely unchanged). I'd like to hear what other ppl think about this. It works for me both ways. If most ppl like to have two modes merged in one executable just to see jackd is running not jackdbus, so be it, I'll merge those changes into dbus patch. > Also fixed quite a few warnings and doxygen errors. Having those as separate patches for review and commit in trunk would be great. > Remote controllable jackd is nice, but first thing's first: It would > REALLY be nice to have nedko's jackd-midi-alsa-munge and jack-logs > patches applied to trunk to kill the intolerably awful midi port naming > problem and shrink the size of this behemoth patch. Both are > straightforward, fix things that need fixing, and break nothing. > > PLEASE? :) PLEASE? :) > Attached patch is against most recent SVN, R1070 It is not usable directly. At least it misses some files introduced by the dbus patch: jackd.c:43:22: error: jackdbus.h: No such file or directory -- Nedko Arnaudov <GnuPG KeyID: DE1716B0>

16 years, 9 months

Overloading OSC Arguments

by Fred Gleason

Howdy Folks: I'm in the midst of laying out an OSC namespace for a new app, and have come across a couple of places where it might make sense to 'overload' different argument parameters onto the same command node (in the same sense that different argument lists can be overloaded into identically-named methods in C++). An example may help make it clear. Consider the following OSC path: /daw/cursor/set_position This would be a command to set a cursor position. If the supplied argument were a float32, the unit would be assumed to be seconds. If it were a string, a broken-down time representation ("HH:MM:SS") would be assumed, and so on. While I can find nothing in the OSC spec that would specifically forbid this sort of behavior, I'd like to be sure that, as a practical matter, the 'real-world' apps that are already out there would be able to deal with this sort of construct. Would anyone be aware of reasons why this sort of layout would not be a good idea? Cheers! |-------------------------------------------------------------------------| | Frederick F. Gleason, Jr. | Chief Developer | | | Paravel Systems | |-------------------------------------------------------------------------| | Research is what I'm doing when I don't know what I'm doing. | | -- Werner von Braun | |-------------------------------------------------------------------------|

16 years, 9 months

[ANN] QjackCtl 0.3.2 (unstable-qt4) released!

by Rui Nuno Capela

Greetings, It must be what should be called one late "Fall cleaning": right after yesterday's Qsynth release, and before going into full-speed season compromises, I'll just let it all go as is :) That's it, the world-famous Qt GUI front-end to the incomparable JACK Audio Connection Kit is here and now, shouting for a general heads-up. Sort of ;) QjackCtl 0.3.2 (unstable-qt4) has been released! It's all in the change-log: - Patchbay port matching has been slightly extended, this time allowing for the multiple or as many-to-many connections between socket plugs, provided these are specified in proper regex form (after a patch proposed by Dave Moore, thanks). - A new option to start the program minimized when the system tray icon is enabled, is now available from Setup/Misc/Start minimized to system tray (as kindly suggested by Marc-Olivier Barre). - Regression from QSystemTrayIcon (Qt4 >= 4.2) implementation, at least on X11 environments: while the main application widget was minimized to the system-tray, closing any other top-level widget was causing the immediate and unexpected application shutdown. - Some portaudio backend settings are now being enabled, specially suited for the jackdmp flavouring. - Server mode display blinking, usually shown as the RT indicator, is now an option (Setup/Display/Blink server mode indicator when started). - Tool/child windows position and size preservation fixed. - The connections/patchbay auto-refresh option has been finally removed due to several user requests, although deprecated for quite some time now it has been the probable cause of some periodic xrun occurrences due to graph-locking in jackd (while making Geoff Beasley angry in the process:). - Messages line limit was not being checked, now honored. - Simple as it could ever be, the build executive summary report is now given on configure. - Patchbay snapshot got its socket and port ordering back. - ALSA Sequencer support is now an optional feature on setup, preventing the annoying "MIDI patchbay will be not available" warning message, ruining window placement on Linux systems where the snd-midi-seq kernel module is not loaded or not favorable (eg. OSS) at startup (by request from Jussi Laako). - Get configure to try and detect the correct qmake location and insert it the search order, so let the qt4 tools take precedence when --with-qt option is given and older qt3 ones coexist and are found located ahead in the PATH. - The connections widget is now being properly refreshed, due to some quirk in the QTreeWidget which was preventing some items, specially the expanded ones, to disappear in the void. Meanwhile, with a hand from Stephane Letz, the client/port lookup method was changed to prevent duplicated, missing entries or worse, crashes due to weird behaved windows applications. - The xrun count stats can now be reset simply by middle clicking on the systray icon or the main window's display area (thanks to patch sent by Dominic Sacre). - An improved version of the "shiny" background image was issued. The original somehow looked like two different images put together, probably most apparent on a bright TFT screen (by Dominic Sacre). - A warning is now being issued, asking whether one wants to remove a corresponding Patchbay connection, when client/ports are being disconnected over the Connections window, thus avoiding automatic reconnection annoyance due to normal active Patchbay behavior. - The infamous "Keep child windows always on top" global option is now supposed to behave a little better when disabled, layering child windows as naturally as far the window manager dictates. - Input/Output Channel setting is now allowed to be greater than 32; the special default text is now displayed, also on Input/Output Latency and Priority settings spin-boxes. - Andreas Persson just sent a patch that makes it possible to compile and run qjackctl with Qt version 4.1. Applied without hesitation, thanks. Hurry, the source tarball, as some other binary forms, might be found in the usual and official place: http://qjackctl.sourceforge.net http://sourceforge.net/projects/qjackctl Cheers && Enjoy -- rncbc aka Rui Nuno Capela rncbc(a)rncbc.org

16 years, 9 months

jmax & jack

by Fons Adriaensen

Anyone knows how to create unconnected and sensibly named jack ports in jmax ? The menu in the configuration editor shows a mix of alsa device names (???), jack's alsa_pcm ports, and something called 'jMax jack output'. Selecting the latter creates a jack port, but any attempt to have more than one in this way fails. Selecting one of the alsa_pcm ones creates a jack port connected to the corresponding alsa_pcm port, and having the same name. Other jack clients don't show up. You can disconnect or reconnect it, but it keeps its original name which doesn't make any sense. What the alsa devices are doing in this menu is a complete mistery... Help ! -- FA Laboratorio di Acustica ed Elettroacustica Parma, Italia Lascia la spina, cogli la rosa.

16 years, 9 months

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Linux-audio-dev