Linux-audio-user November 2005

linux-audio-user@lists.linuxaudio.org

147 participants
156 discussions

Re: [linux-audio-user] Ingo's RT patch: please tell this newbie the best jack settings

by thewade

> 1) The current kernel from Ingo would be 2.4.16-rt9. I think that rt5 > didn;t last very long and had some problems. Please try -rt9. OK, will do. > 2) Make sure you reinstall the realtime-lsm package after building that kernel. If I remember correctly this also included a PAM patch: does it still? I will investigate. > 4) Making best use of the kernel requires that you understand the ISR > number for your sound card and reset it's priority higher. This helps > a lot in reducing or eliminating xruns. How does one control the IRQ number of the device? I thought this was determined by the hardware. Can you point me to a URL so that I might learn more? (I dont really know what terms to search for) > 7) Make sure you have the Jack FIFOS mounted on tmpfs. Of course! > As a comment, I don't personally like Jack in /usr local. You might > consider rebuilding Jack one of these days with: > > ./configure --prefix=/usr I was using a modified jack.spec file from the CVS distro of jack. I will change my version but perhaps I should suguest this change to the jack people as well? > Hope this all helps a bit,. It does very much! I didnt really realize that the LSM module ran on top of the rt patch! Does your kernel have Default linux capabilities enabled? I cannot remember if this is supposed to be on or off with the LSM module... Thanks for the help Mark! -thewade

19 years

Re: [linux-audio-user] Ingo's RT patch: please tell this newbie the best jack settings

by thewade

> On Thu, 2005-11-10 at 17:05 -0800, thewade wrote: > >/ I am curious how to get PD running on my machine /> >/ processing complex patches but with a latency of 5.33 msec (128 frame /> >/ buffer size I think) or less. I would even settle fo 10msec (256) with /> >/ no XRUNS. /> >/ /> > You don't need the -rt kernel for that, the standard kernel will work. > > Lee I am using kernel 2.6.13-1.1526_FC4 and the Hammerfall HDSP multiface on an AMD64 3400+ laptop in i386 mode, and the best I can do with no XRUNS in jack is 42.7msec latency (48kHz at 1024 frames). This is not becasue of PD. If I lower the framecount with only jackd running and switch windows I get XRUNS. This is why I want to use the rt5 kernel. How did you get such low latency with the standard kernel? Is there a howto page somewhere? Thanks, -thewade

19 years

Re: [linux-audio-user] Ardour and Linux

by Sampo Savolainen

Quoting Soenke Hahn <SoenkeHahn(a)web.de>: > > I want to have a look at Ardour and if you could point me to an OS and > how > > >to install what, then that'd help me a lot. > > > > > I'd recommend ubuntu: www.ubuntu.com > It's good for beginners and laptops :) > Take a look in the wiki there on how to install software...i think there I'd recommend anything else than ubuntu! As an ardour dev, I've tried helping people fix their ubuntu systems to get ardour (and other application) working smoothly. They've ran into strange problems etc. which newbies can't handle by themselves. If you are a linux newbie and your primary goal is to get Linux audio working smoothly, you should go for Fedore Core 3 + Planet CCRMA (http://ccrma.stanford.edu/planetccrma/software/) (btw. I have nothing against ubuntu or debian, I use debian myself and wouldn't change it for the world. But. I'm not a newbie) Sampo Savolainen

19 years

[linux-audio-user] Icons required for DSSI plugins

by Nigel Henry

Hi Folks. Anyone got any icons for the following synths? Hexter Xsynth Fluidsynth Whysynth Sineshaper Smack If not, I'll have to get back on KDE's icon editor. (Not really up to speed with GIMP). Nigel.

19 years

[linux-audio-user] Hello

by Brian Hennessey

Hello all - first post here. I trying to move to Linux after years with Cakewalk/Cubase/etc. I have been recently inspired to get into csound, using Rosegarden or seq24 to drive it. First. Thanks to Emmanuel. The page is a great resource. I had been using Demudi, but the error the loading snd-virmidi module made me look for alternatives. So now I am using Debian testing. I have followed the directions on the Emmanual's page (compiled kernel, realtime-lsm module, etc) but, but when I try to configure jack: #./configure --prefix=/usr --enable-posix-shm --with-default-tmpdir=/mnt/ramfs I get: Build support for ALSA.........false (or something similar, I am at work now) #cat /proc/asound/cards returns info about my card, and I am fairly sure I have alsa set up correctly.(alsamixer and aconnect seem to work fine) any ideas why jack configure is not detecting ALSA? where is it looking? (i have /usr/src/linux linked to /usr/src/linux-2.6.14.2 and config file is there). I have booted to the new 2.6.14.2 kernel. Any help is appreciated. -Brian Hennessey __________________________________ Yahoo! FareChase: Search multiple travel sites in one click. http://farechase.yahoo.com

19 years

[linux-audio-user] linuxsampler compilation problems

by Carlos Pino

Hi there, Im trying to compile linuxsampler from source and get this message at the make process: Synthesizer.cpp:54: instantiated from here ../common/Resampler.h:142: error: memory input 2 is not directly addressable make[4]: *** [Synthesizer.lo] Error 1 make[4]: Leaving directory `/home/supertux/proceso/linuxsampler/linuxsampler-0.3.3/src/engines/gig' make[3]: *** [all-recursive] Error 1 make[3]: Leaving directory `/home/supertux/proceso/linuxsampler/linuxsampler-0.3.3/src/engines' make[2]: *** [all-recursive] Error 1 make[2]: Leaving directory `/home/supertux/proceso/linuxsampler/linuxsampler-0.3.3/src' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/home/supertux/proceso/linuxsampler/linuxsampler-0.3.3' make: *** [all] Error 2 Before this I compiled libgig (as explained at the web project) with succes. I've googled a lot but didn't found information about this error message. Could someone give some light? I don't know what must I look for. Thanks in advance. Saludos Cheers -- Carlos.

19 years

[linux-audio-user] Reg. Audacity & finding Peak level

by Hasse Hagen Johansen

Hi I have tried looking for an answer on google etc. I have recorded a file (not in audacity but on a portable recorder) I would like to find the peak level in that file, but I can't get audacity to show it to me. I have tried the Peak Monitor and it seems to look thorugh the file, but it doesn't show me the level(or I can't find where it show it to me) It is a minor problem, and I can get Sox to show me, but I cannot believe that audacity can't do that? Regards Hasse H. Johansen

19 years

[linux-audio-user] RMS and peak levels: meters

by Marcos Guglielmetti

What apps can I use to gauge (meter) audio RMS and peak levels? I need yo know exactly the average of peak levels, and the RMS loudness of an audio file. As instance, suppose I want to master my song at a similar RMS level as another audio file has. What should I use? -- Marcos Guglielmetti Coordinador del desarrollo de Musix GNU+Linux (www.musix.org.ar) fecha: sáb oct 29 00:45:01 CEST 2005 ___________________________________________________________ 1GB gratis, Antivirus y Antispam Correo Yahoo!, el mejor correo web del mundo http://correo.yahoo.com.ar

19 years

[linux-audio-user] LAU - List Administration Quistion/Issue

by Mark Knecht

Hi all, Josh Lawrence is someone that signed up for this list but the list seems to be denying his attempts at posting. He has written me off line to help him out. Who is the list admin and how can we get this worked out for Josh? Thanks, Mark

19 years

[linux-audio-user] [HOWTO] How to create music with GNU/Linux

by Emmanuel Saracco

Hi, I am currently writing a Tutorial ("How to create music with GNU/Linux") under GFDL. Current working copy is available here (in HTML, PDF and DocBook XML format): http://esaracco.free.fr/documentations/linuxaudio/linuxaudio/ http://esaracco.free.fr/index.php Comments, corrections and contributions are welcome. ----- Table of Contents ----- Forword 1. System settings and tuning 1.1. My own system configuration 1.2. File system 1.3. Linux Kernel 1.4. Realtime module 2. Building required audio softwares 2.1. Jack Audio Connection Kit 2.2. Qjackctl 2.3. LADSPA 2.3.1. LADSPA plugins 2.4. DSSI 2.5. Hydrogen 2.6. QSynth 2.7. ZynAddSubFX 2.8. Rosegarden 2.8.1. Building from a CVS branch 2.8.2. Building the stable 1.0 release 2.9. Ardour 2.10. Jack Timemachine 2.11. Rezound 3. Soundfonts 3.1. Getting soundfonts 3.2. Using soundfonts 3.2.1. With Soundblaster soundcard 3.2.2. With other soundcards 4. Create music 4.1. Execute Jack at first 4.2. Playing with ZynAddSubFX 4.3. Playing with Hydrogen 4.4. Playing with Rosegarden 4.4.1. Rosegarden settings 4.4.2. Using soft synthetizers 4.5. Playing with Ardour 5. Capturing and encoding 5.1. Playing with Timemachine 5.2. Playing with Rezound 5.3. Playing with Oggenc and Lame A. Usefull Audio Links A.1. Mailing-lists A.2. Web sites B. My compositions Colophon ----- Thanks, Bye

19 years

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Linux-audio-user November 2005