Linux-audio-user January 2008

linux-audio-user@lists.linuxaudio.org

142 participants
145 discussions

by Edward Tomasz Napierala

Version 2.2 of jack-keyboard can be downloaded from http://pin.if.uz.zgora.pl/~trasz/jack-keyboard/jack-keyboard-2.2.tar.gz jack-keyboard is a virtual MIDI keyboard - a program that allows you to send JACK MIDI events (play ;-) using your PC keyboard. It's somewhat similar to vkeybd, except it uses JACK MIDI instead of ALSA, and the keyboard mapping is much better - it uses the same layout as trackers (like Impulse Tracker) did, so you have two and half octaves under your fingers. -- If you cut off my head, what would I say? Me and my head, or me and my body?

18 years, 1 month

Re: [LAU] Resonance (i.e., bassist jokes)

by Sean Corbett

> > I cannot resist joining the fracas. > > A missionary visited a remote aboriginal village. The villagers maintained > a constant drumming all day and all night. It got on his nerves. After a > week, he started asking if they could please stop. "Oh no. Drums no stop. If > drums stop, BAD thing happen". So the missionary got on with his work. Days > went past, and he was starting to lose his mind. "Why, why, what is so awful > that you can't stop the drumming? It can't be worse than having to live like > this!" The reply came again, "No no! Drums no stop! Drums stop... bad, bad, > bad thing happen!". Nobody would tell the missionary what was this awful > consequence, and this soon made him even crazier than the incessant > drumming. Finally, after weeks of this, the missionary was coming undone. He > went to see the village elder, begging, "Please, please, tell me, what is > the awful, terrifying thing that happens if the drumming were to stop?!" > The chief regarded him for a while, then took pity on him and decided to > share the awful secret, "When drums stop, then... bass solo!" That one was great! Q: What's the difference between a keyboardist and a terrorist? A: You can negotiate with the terrorist. Q: How do you know when the drum platform is level? A: When the drummer is drooling from both sides of his mouth. -s

18 years, 1 month

[LAU] [ANN]gcomposer 0.9.1

by sed＠free.fr

Hello dear Linux Audio Users, Gcomposer is a little GTK-based tool to write music, targeting classic guitarists (and other musicians of course). It's fast, simple, keyboard-centric. The 0.9.1 versions includes ALSA MIDI support (not very tested, so if you have troubles with it, it would be friendly to report). There are also a few bugs fixed. Gcomposer is at: http://sed.free.fr/gcomposer Take care, Cedric.

18 years, 1 month

[LAU] ArdourVST - Latency Management

by Sebastian Tschöpel

Hello List, I worked with a (jacklab) VST-capable Ardour version and some free VST - plugins today and created some kind of a mic- channel strip with a deesser, eq, compressor, reverb, etc. The problem is: When I bypass the whole strip voice and music are perfectly synchronized. but when I turn all the effects on I have a bad latency between the (effect-free) music and the (channel-stripped) voice. When I use like 50 ladspa eq's, limiter or whatever at the same time in the same channel the voice in on time, so I assume that LADSPA plugins are either producing no latency (which i cannot believe) or there is some kind of a latency management. Is there something I can do about it (except delaying the other channels which is basically not possible since the delay changes with the number of effects) my machine is based on openSuse 10.2/JAD1.0 and I build ardourVST, following this link: http://wiki.jacklab.net/index.php/Ardour_with_VST thanks in advance -- Regards, Sebastian Tschöpel.

18 years, 1 month

[LAU] jack startup error under debian/sid

by Joel Roth

Hello everyone, I've just upgraded my debian system from etch to sid. Using the precompiled jack binaries, I get the following error. $ jackd jackd: symbol lookup error: jackd: undefined symbol: _jack_get_microseconds The error occurs regardless of command-line options, such as jackd -R -v -d alsa A web search turned up a suggestion to remove old jack libraries, which I've done. I now have these two packages. ii jackd 0.103.0-6 JACK Audio Connection Kit (server and example clients) ii libjack0 0.103.0-6 JACK Audio Connection Kit (libraries) The libraries are installed in /usr/lib/jack. -rw-r--r-- 1 root root 4096 Jun 23 2007 inprocess.so -rw-r--r-- 1 root root 4716 Jun 23 2007 intime.so -rw-r--r-- 1 root root 55712 Jun 23 2007 jack_alsa.so -rw-r--r-- 1 root root 8792 Jun 23 2007 jack_dummy.so -rw-r--r-- 1 root root 19024 Jun 23 2007 jack_freebob.so -rw-r--r-- 1 root root 28488 Jun 23 2007 jack_oss.so A strings search that they _do_ contain _jack_get_microseconds. Can someone suggest if there are anything else I might have missed? Regards -- Joel Roth

18 years, 1 month

[LAU] [ANN] dssi-vst 0.6

by Hermann Meyer

Hello thank you very much, It's build and run fine on my debian/sid system. I really like the way how it opens rosegarden for vst plugins. The crash you talk about is this the time out at startup which happens some times on my system ? greetings hermann

18 years, 1 month

[LAU] [ANN] dssi-vst 0.6

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

18 years, 1 month

[LAU] [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

18 years, 1 month

Re: [LAU] Resonance (i.e., bassist jokes)

by Sean Corbett

> > On Fri, 2008-01-04 at 06:58 -0500, Dave Phillips wrote: > > david wrote: > > >> But how do you call the guys hanging out with the musicians? - > Drummers. > I have to come out of lurking since there are demeaning musician jokes flying around.... A boy began taking electric bass lessons. When he came home from the first lesson, his father asked, "What did you learn at your lesson today?" "The first four notes on the first string," was the reply. When he came home from his second lesson, his father again asked, "What did you learn today?" "The first four notes notes on the second string," said the boy. Another week went by, and again when the boy came home his father asked, "What did you learn today?" The boy replied, "Oh, I skipped my lesson today... I had a gig."

18 years, 1 month

[LAU] [ANN] New bleeding edge repository for Ubuntu Studio with ardour 2.0-ongoing svn

by Raphaël Doursenaud

Hi all, http://archive.ematech.fr is a repository with latest svn revision of Ardour 2.0-ongoing packaged for Ubuntu Studio 7.10 (Gutsy Gibbon). Both i386 and amd64 versions of the package are available. I'll try to package the latest svn on a daily basis. The repository will soon host some new/custom/backported/hard-to-find bleeding edge packages for Ubuntu Studio. Best regards, Raphaël Doursenaud

18 years, 1 month

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Linux-audio-user January 2008