Linux-audio-dev

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7534 discussions

[linux-audio-dev] [ANN] JJack 0.1 - Java for JACK initial release

by Jens Gulden

Hello, JJack 0.1 - Java bridge API for JACK has initially been released. http://jjack.berlios.de/ JJack is a framework for the Java programming language that allows creating and running portable audio processor clients for the JACK Audio Connection Kit. There are 3 alternative ways to run JJack clients: - using the JJack shell application - as JavaBeans - as standalone application Please let me know if you have created a Java audio application with JJack, it can be made available for download on the JJack site if you like. If someone knows how to compile the native bridge library libjjack.c for other OSs than Linux, please send the resulting binary to me. Co-developers are always welcome. Make noise. Jens

21 years, 8 months

[linux-audio-dev] Linux soundapps pages updated

by Dave Phillips

Greetings Earthlings: The subject line says it all.... http://www.linuxsound.at (Europe) http://linuxsound.jp (Japan) http://linux-sound.org (US) Best regards, Dave Phillips

21 years, 8 months

[linux-audio-dev] kernel preemption patch and 2.4.19

by Michael Ost

What specific benefits have folks seen by turning on the kernel preemption patch in a 2.4.19 kernel? We found that a nasty system crash was fixed by turning off preemption. The crash would happen fairly reliably by switching between virtual terminals a number of times. It locked up the system hard. So hard that we can't really find the problem in the kernel; we just found a work-around basically by trial and error. We turned on kernel preemption basically because "everyone was doing it". We haven't noticed any obvious, serious problems or differences since turning preemption off. Does anyone have some suggestions about what differences to expect and what we might have a closer look at? Also, we are newbies about reporting this kind of crash. Any clues about where to report it or ask about it? Thanks for any help... mo =================================== Michael Ost, Software Architect Muse Research, Inc. most(a)museresearch.com

21 years, 8 months

[linux-audio-dev] Latencytest of filesystems (ext2, ext3 w. defaults)

by Roger Larsson

Result looks OK with a SuSE kernel (I think they have lowlatency patch applied), worst was ext2 - it was diskread that had most problems... ext3 - diskread (!?) diskrm included for reference http://w1.910.telia.com/~u91005836/index.html [I have to recheck the results when I am awake :-] Patches are attached - with extras (see below). Hmm... the output should really add kernel version: uname -r "2.4.21-215-athlon" Close, but does not tell that it is precompiled by SuSE X11 server and filesystem type: how to find that automatically? I use, XFree86 nv Extras: * some filehandling (non local root of testing) and * run with min(SCHED_FIFO)+1 not max - it is a CPU hog (80%) [the more CPU usage the less prio] - show that it works to avoid creating a trend... /RogerL -- Roger Larsson Skellefteå Sweden

21 years, 8 months

[linux-audio-dev] Re: LADSPA proposal ...

by Juhana Sadeharju

>From: Fons Adriaensen <fons.adriaensen(a)skynet.be> > >- use sscanf() to read the rest. How about the following string: s = "pi 3.14159 e 2.71828". First I do: sscanf(s,"%s %f\n",) Then I do: sscanf(snext,"%s %f\n",) How to get the snext? Somebody mentioned that sscanf returns the number of bytes consumed, but the manual page reads: "These functions return the number of input items assigned". -*- Will the proposed LADSPA library be both for plugin developers and for host developers? Plugin authors need no more write those cryptic LADSPA plugin description files? Jack style dev library? Great thanks. Regards, Juhana

21 years, 8 months

[linux-audio-dev] soundonsound (surroundsound)

by Juhana Sadeharju

>From: Fons Adriaensen <fons.adriaensen(a)skynet.be> >> >> http://www.soundonsound.com/sos/Aug01/articles/surroundsound1.asp?session=d… > >Hi Paul, interesting pointer, it's in my bookmarks now ! Thanks ! Maybe you should check all those Synth Secret articles and turn them to something usable. :-) Regards, Juhana

21 years, 8 months

Re: [linux-audio-dev] re: [linux-audio-user] A bit of good news -- paper now available for your viewing pleasure and/or comments

by eviltwin69＠cableone.net

Very nice. I like the fact that you didn't sugar-coat it. There can be problems but it's usually worth the effort. I was disappointed that you didn't mention JAMin - AFAIK the only serious audio mastering software for Linux ;-) Jan On Fri, 28 May 2004 00:05 , 'Ivica Ico Bukvic' <ico(a)fuse.net> sent: >Ok, so the rough version of the paper (following initial 10-hour revisions >that converted my brain into a gray mush) is now available in the PDF format >from my website. If you are interested in providing some feedback as to how >I can make the paper even better, please let me know asap as I only have >another day or so before I need to turn-in the paper. > >Also please note that the paper will be available in the ICMC proceedings as >a short version that lacks chapters 7 and 9 due to space constraints. The >full paper will be available online-only. > >The url to the PDF is as follows: >http://meowing.ccm.uc.edu/~ico/temp_online.pdf > >Any comments and/or suggestions are welcome and appreciated (although I >honestly cannot guarantee that all of them will make it into final revision >due to aforementioned deadline). > >Time to hit the sack... >Best wishes, > >Ivica Ico Bukvic, composer & multimedia sculptor >http://meowing.ccm.uc.edu/~ico/ > > >

21 years, 8 months

[linux-audio-dev] XRuns with the Audiophile 24/96 M-Audio

by Remi Bernhard

Hello, I read a lot a great thing about the audiophile 24/96 on the net, and i decided to buy it to get better latency than my old sblive! I just received the audiophile 24/96 and unfortunatly, i have a lot of XRuns with when i run jackd. I already tried the following : - i changed irq (several changes : irq5, then irq 10) - Disable nearly all the inboard harware (serial port, parallel port, usb) - i changed the Pci port - i tried to run jackd as root - i even tried to raise buffer at big values : 512, 1024, and even there i have some (1 or 2) xruns - i'm now trying with kernel 2.6.6 to see if things are better Hardware : MSI K7N2Delta MB Athlon 2400 Nvidia Geforce 4mmx Audiophile 24/96 M-Audio Sofware : Debian/Testing Kernel 2.6.5 Alsa 1.0.4rc2 Realtime-Lsm 0.1.0 Do you have ideas, before i return the card to the shop ? Regards, Rémi Bernhard.

21 years, 8 months

[linux-audio-dev] [ANN] Specimen 0.2.9 Released ("I'm Not Dead Yet")

by Pete Bessman

Howdy folks! The newest version of Specimen is available for immediate download from www.gazuga.net (direct: http://www.gazuga.net/specimen-0.2.9.tar.gz). Features include: * A piano for graphically asigning note ranges * A very happenin' bank building interface that uses an embedded File Chooser (gtk+-2.4 required for this) * LASH/LADCCA support * Extensive repairs, most notably to the waveform display (it's alias- free) and the panning code (it works). * A completely revamped audio rendering system * Sundry cleanups and fixes Many thanks to Loki Davison, the new and official co-developer, for his fabulous contributions to this release, and for bitch-slapping me into getting back to work on this code (rather than piddling around with vaporware). Stay tuned for more... [pb] -- "The direct use of physical force is so poor a solution to the problem of limited resources that it is only employed commonly by small children and great nations." --David D. Friedman

21 years, 8 months

[linux-audio-dev] Thanks all!

by Ivica Ico Bukvic

Big thanks to all who helped me iron out the inconsistencies in my paper. I will be sending the final draft shortly and posting the online version during the conference this upcoming November. Best wishes, Ivica Ico Bukvic, composer & multimedia sculptor http://meowing.ccm.uc.edu/~ico/

21 years, 8 months

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