Linux-audio-user January 2010

linux-audio-user@lists.linuxaudio.org

166 participants
153 discussions

[LAU] Find out what causes the xruns....

by rosea grammostola

Hi, As you probably read on the yoshimi thread, Yoshimi works great on Ubuntu 9.10, but I have many xruns on my main system Debian testing. Is there a good way to find out what is causing it? \r

16 years

[LAU] instability of sirlab vocoder and derivatives

by Robert Persson

Hello Has anyone got the sirlab vocoder or either of its derivatives (the ladspa and lv2 plugins) working properly? If so, which version(s) are you using, and which version(s) of jack and/or any plugin hosts are you using? I have been trying to use v2.9 of the standalone, v.3 of the ladspa plugin and the current version of the lv2 plugin. The standalone plugin barely works; as soon as I change a patch in zynaddsubfx, one or both applications will crash. The LV2 plugin is completely non-functional. It crashes Ingen every single time an attempt is made to load it. It crashes lv2rack more often than not. On the occasions when it does load successfully into lv2rack it behaves really weirdly. It kills all sound to the right alsa out channel, so that no jack client can use it, whether or not that client is directly connected to lv2rack. It makes no sound itself except for the occasional squeak. I can't give you so much detail on the ladspa plugin right now, beyond to say that it really doesn't work either Is it worth persevering with the vocoder, or is it really not usable at the moment?

16 years

[LAU] yoshimi creeps... 0.051

by cal

The main change in 0.051 is to the recorder start logic, which sort of goes like - - Select your wav file, and the recorder becomes armed. - When armed, recording starts with the first note-on event, or a click on the Record button. - When armed, a click on the Stop button disarms the recorder. - When recording, a click on the Stop button stops the recorder, leaving it armed. <http://sourceforge.net/projects/yoshimi/files/> Bon apetit. cheers, Cal

16 years

[LAU] quick follow-on to the RPM2010 thread

by frank pirrone

Been a chaotic day of poly-tasking so as I switched my brain-state momentarily back to Rosea's question and my last reply I realized I wanted to state the essence of the issue, if for no other reason than to re-focus on it in my own mind, and to simply hear myself say it. I know the world doesn't need me to issue any kind of statement on the matter of OS/software Freedom but the underlying philosophical commitment of the original Packet-In collaboration for RPM08 was the purest application of the concept and the practice. EVERYthing about what we did was Free, and for all the classical reasons. We used all free OS and software tools and offered our work under CC by SA also as unencumbered and Free. We wanted to be able to "give" everything to anyone interested in revisiting our work, retracing our footsteps, remixing and extending what we created - building up and out from where we left off. Nobody said it better than Newton in his comment about seeing further by standing upon the shoulders of giants. LOL, we are NOT the giants in that metaphor...well, actually we are but modesty, if not reality, compels me to reject any such characterization. I mean, this is the essence of what was always the academic way, and the scientific way, and the philosophical way...before the Age of Intellectual Property, Copyrights, and Patents. Knowledge built upon freely shared prior knowledge, and tools inspiring the creation of greater tools. We hoped others might build upon our music and anticipated the delight at hearing a remix, or someone substituting their soaring vocals or guitar for my humble efforts. It never happened, but I can't think of a greater "reward" for what we did should it ever. So, think of it as a kit that you can Freely give to anyone who is interested, and who can in turn Freely pass it on, inside which are ALL the parts needed to first do everything we did but more importantly to start at that point and do something we never imagined. Frank

16 years

Re: [LAU] instability of sirlab vocoder and derivatives

by humbert.olivier.1＠free.fr

Hi, I don't know if they work properly or not but, it's that we have on LinuxMAO.org: http://www.transformate.de/x/pawfaliki.php?page=DownLoads http://www.sirlab.de/linux/descr_vocoder.html (yours) https://gna.org/projects/lv2vocoder I am of benefit of this mail to quickly introduce myself : I read this list since 2 or 3 months, good M-L ! I'm musician (drums, guitars, voice, too all that makes sounds just-for-fun), teacher's one too (drums, batucada, african's percussions, rock's workshop, road's art, ...) I'm too administrator for http://www.linuxmao.org . My english is not the best one, but I made some french's translations for correct this with : Audacity (website and manual) and Hydrogen (GUI) at the moment. Translation for Ardour's manuals are "on the road in my head", but nothing has begun. Happy to meet you all. Olivier

16 years

[LAU] New easy listening gospel online

by Julien Claassen

hello all! I just put up a short piece. It was more intended as a test for the latest Nama version, yet I think it's OK enough to upload. Direct links: http://juliencoder.de/nama/a_gospel.ogg http://juliencoder.de/nama/a_gospel.mp3 Or read more about it here: http://juliencoder.de/nama/music.html All instruments are software, all recording, processing, mixingand mastering done in Nama. Enjoy and as always feedback is very welcome! Kindly yours Julien -------- Music was my first love and it will be my last (John Miles) ======== FIND MY WEB-PROJECT AT: ======== http://ltsb.sourceforge.net the Linux TextBased Studio guide ======= AND MY PERSONAL PAGES AT: ======= http://www.juliencoder.de

16 years

[LAU] LADI Session Handler - Preview 2

by Marco Castorina

Hi all, sorry to bother you again. I'm trying out the new version of LADISH, and I have some problems for capture. Using Qjackcl I've no problem, but when LADISH try to start jack I get this message: (please see screen shot) I've and M-Audio Fasttrack pro and I'm on Ubuntu 9.10. I installed the Jack version (1.9.5) that comes with Ladish... Here it is the command with which Jackd is started in Qjackctl: JACK server starting in realtime mode with priority 89 audio_reservation_init Acquire audio card Audio1 creating alsa driver ... hw:1,0|hw:1,1|512|3|44100|0|0|nomon|swmeter|-|32bit Using ALSA driver USB-Audio running on card 1 - M-Audio FastTrack Pro at usb-0000:00:1d.1-2, full speed configuring for 44100Hz, period = 512 frames (11.6 ms), buffer = 3 periods ALSA: final selected sample format for capture: 16bit little-endian ALSA: use 3 periods for capture ALSA: final selected sample format for playback: 16bit little-endian ALSA: use 3 periods for playback port created: Midi-Through:midi/playback_1 port created: Midi-Through:midi/capture_1 port created: FastTrack-Pro:midi/playback_1 12:40:50.092 ALSA connection graph change. port created: FastTrack-Pro:midi/capture_1 port created: TiMidity:midi/capture_1 port created: TiMidity:midi/capture_2 port created: TiMidity:midi/capture_3 port created: TiMidity:midi/capture_4 12:40:51.839 Server configuration saved to "/home/marco/.jackdrc". 12:40:51.839 Statistics reset. 12:40:51.856 Client activated. 12:40:51.871 JACK connection change. 12:40:51.875 JACK connection graph change. And here's the configuration I use with Ladish: <jack> <engine> <option name="driver">alsa</option> <option name="realtime">true</option> <option name="realtime-priority">89</option> <option name="temporary">true</option> <option name="client-timeout">1000</option> <option name="port-max">256</option> </engine> <drivers> <driver name="loopback"> </driver> <driver name="net"> </driver> <driver name="netone"> </driver> <driver name="alsa"> <option name="capture">1</option> <option name="playback">0</option> <option name="device">hw:1</option> <option name="rate">44100</option> <option name="period">512</option> <option name="nperiods">3</option> <option name="hwmon">false</option> </driver> <driver name="dummy"> </driver> </drivers> <internals> <internal name="audioadapter"> </internal> <internal name="netadapter"> </internal> <internal name="netmanager"> </internal> <internal name="profiler"> </internal> </internals> </jack> Thanks again for your patient. Marco Send instant messages to your online friends http://uk.messenger.yahoo.com

16 years

[LAU] Good, efficient compressor in LADSPA and/or SLV2?

by Ken Restivo

I'm going to be mixing a record in Ardour on Linux (yay). Can anyone recommend a good, efficient (low CPU usage) mono compressor for use on individual tracks? I've tried the CALF compressor, which seems good, but it's stereo and seems to use a good deal of CPU. Perhaps one might say: "Try them all out and use the one that sounds best to you". Well that won't work, because no compression sounds good to me. Compression fatigues my ears very quickly, and makes everything sound like a beer commmercial (wait, those are the same thing). But if we want a hit single, then we'll have to just crush every track with compression, I'm sure. Anyway, any compressor preferences would be greatly appreciated. -ken

16 years

[LAU] alsa problems post jack

by Rustom Mody

This is on debian lenny. I wanted to try rosegarden. It seemed to want jack. Installing jack messed up something about the basic sound setup, so that now when I boot my machine sound does not work. After running alsaconf it works. Note that deinstalling jack and rosegarden has not removed the problem. I could post the output of lsmod before and after alsaconf if someone can decipher that

16 years

[LAU] Req: Educational research?

by Ketil Thorgersen

Hi list I am a researcher in music education in Sweden. I mainly lurk on this list and others, but have understood that at least some of you work with education in some way or another. I have used linux as my preferred platform for years, and have followed this list and the linux audio development with great interest for years. However, I have never been doing any research into how open source music software can be, or is, deployed in educational settings. Since this is an interest, I would like to read up on whatever research has been done in that area before doing anything. Does any of you know where to look? Seaching on google scholar shows very little! Best regards Ketil Thorgersen Doctor in music education, Stockholm University

16 years

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Linux-audio-user January 2010