Linux-audio-user January 2008

linux-audio-user@lists.linuxaudio.org

142 participants
145 discussions

by Paul Davis

This is a maintainance release of JACK. Three important issues are fixed: * the old ALSA PCM port names are available, so that applications that either hardcode or have existing patching information containing these names will function. * the use of popen(3) to invoke jackd to determine the server directory has been fixed so that it works on systems that have closed a security risk with popen(). This was preventing correct startup on OS X, in particular. * USX2Y driver updates to enable JACK MIDI devices to show up in raw-usb mode (previously, raw-usb mode didn't initialize or call MIDI drivers properly). Download from either jackaudio.org or sourceforge: http://jackaudio.org/downloads/jack-audio-connection-kit-0.109.2.tar.gz http://prdownloads.sourceforge.net/jackit/jack-audio-connection-kit-0.109.2…

16 years, 11 months

LinuxSampler or JACK or what is the trouble?

by Julien Claassen

Hi everyone! I've still got some problems with my LS. I can load smaller gigsampler (upto 650M for sure) and even larger ones, bUT... But when I load my Old Lady Grand (1.3G) it loads perfectly, but when I try to connect LS to JACK the following happens: [Linuxampler console] [copeous output] Caching initial samples...OK cannot complete execution of the processing graph (Resource temporarily unavaila ble) zombified - calling shutdown handler Killed [JACK console] [copious output] Noise-shaped dithering at 16 bits jackd watchdog: timeout - killing jackd Aborted what's the trouble. I just compiled JACK 0.109.1 (svn from 29.01.2008) and LS 0.5.1 (tarball). My kernel is: host # uname -a Linux bach 2.6.23.1-rt11 #2 PREEMPT RT Sun Dec 30 22:43:22 CET 2007 i686 GNU/Linux I've got 512M RAM (no Xserver running), so mostly unused. I compiled my LS with 8 diskstreams min and 140 max, and max 128 voices, the rest was decided by the configure script. I even tried reverting the disk-stream options and the voices to normal. Jack was compiled without a lot of drivers I don't need, and with --enable-resize --enable-timestamps --enable-sse --enable-mmx --enable-optimization-by-compiler I start my jackd with: jackd --timeout 4000 -R -d alsa -d hw:1 -r 48000 -H -M -p 256 -z shaped I've got a 1.8Ghz CPU and my soundcard is an MAudio Delta 1010LT. One last note: I checked memory sage with top: Even with the big gigasample it only takes 41% and CPU-usage is marginal. So where would you suspect the most possible source for my problem? Kindest regards 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, 11 months

(no subject)

by '2+

did a dist-upgrade for UbuntuHardyAlpha3 last weekend and the RT kernel became a bit older than the generic one was using the system as CUI but since the setup for awesome went okay also installed emacs-snapshot-nox and supercollider even though ChucK works fine with jackd when i do emacs -sclang and try to boot the server it returns JackDriver couldn't connect alsa_pcm:capture_1 to SuperCollider:in_1 JackDriver couldn't connect alsa_pcm:capture_2 to SuperCollider:in_2 JackDriver couldn't connect SuperCollider:out_1 to alsa_pcm:playback_1 JackDriver couldn't connect SuperCollider:out_2 to alsa_pcm:playback_2 i wonder what is wrong i have to always install the brand new RT kernel manually? snapshot version of emacs-nox is not okay? (purging that version and installing 21 or 22 results into no emacs-nox existing) HardyAlpha3 seems to have pulseaudio enabled as default this has something to do with the error? -- '2+ http://micro.ispretty.com

16 years, 11 months

Re.: vst presets

by Hermann Meyer

> Does anyone know of a program that will allow use of vsti under linux > that also utilises the built in presets for the instrument? savihost ore vsthost from hermann seib run's under wine with wineasio. But latency is high. http://www.hermannseib.com/english/default.htm hermann

16 years, 11 months

Horrible number of xruns in Jack (Emu card)

by Darren Landrum

I hope someone can help me with this. I have: Athlon64 Dual-Core 6000+ 2GB DDR3 RAM, running dual-channel 3 x SATA hard disks Emu 1212m sound card Ubuntu Studio 7.10 (Gutsy, I think) Trying to run JACK at 44.1khz, at a 128 sample buffer I'm getting on the order of 50-60 xruns a second. Even at a 4096 sample buffer, I was getting one xrun every 2 seconds. I would think this setup should be able to handle a 64 sample buffer without any trouble. The one caveat is I did have to compile the latest stable ALSA from scratch, so that my sound card would work. Could it be related to the still-beta driver for my Emu card? Or maybe I need to recompile ALSA with some options? Thank you for any help. -- Darren Landrum

16 years, 11 months

LinuxSampler or JACK or what is the trouble?

by Julien Claassen

Hi everyone! I've got some problems with my LS. I can load smaller gigsampler (upto 650M I can confirm) and everything works. But when I load my Old Lady Grand (1.3G) it loads perfectly, but when I try to connect LS to JACK the following happens: Linuxampler console: ... Caching initial samples...OK cannot complete execution of the processing graph (Resource temporarily unavaila ble) zombified - calling shutdown handler Killed The JACK console: ... Noise-shaped dithering at 16 bits jackd watchdog: timeout - killing jackd Aborted what's the trouble. I just compiled JACK 0.109.1 (svn from today) and LS 0.5.1 (tarball). My kernel is: Linux bach 2.6.23.1-rt11 #2 PREEMPT RT Sun Dec 30 22:43:22 CET 2007 i686 GNU/Linux I've got 512M RAM (no Xserver running), so mostly unused. I compiled my LS with 8 diskstreams min and 140 max, and max 128 voices, the rest was decided by the configure script. Jack was compiled without a lot of drivers I don't need, and with --enable-resize --enable-timestamps --enable-sse --enable-mmx --enable-optimization-by-compiler I start my jackd with: jackd --timeout 4000 -R -d alsa -d hw:1 -r 48000 -H -M -p 256 -z shaped I've got a 1.8Ghz CPU and my soundcard is an MAudio Delta 1010LT. So where would you suspect the most possible source for my problem? Kindest regards 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, 11 months

Re: [LAU] Horrible number of xruns in Jack (Emu card)

by Norval Watson

I got the same processor running 64-bit debian sid running jack at 44.1khz, 64 sample buffer on Audiophile 2496 soundcard with no xruns. Are you running realtime kernel with realtime box checked in qjackctl/settings (or with -R option on command line)? (I got 4GB dual-channel RAM and 2 SATA DRIVES...) My kernel: 2.6.23.11-rt14 #1 SMP PREEMPT RT Wed Dec 26 08:47:49 EST 2007 x86_64 GNU/Linux Norv ----- Original Message ---- From: Darren Landrum <darren.landrum(a)sbcglobal.net> To: linux-audio-user(a)lists.linuxaudio.org Sent: Monday, 28 January, 2008 11:42:08 PM Subject: Re: [LAU] Horrible number of xruns in Jack (Emu card) Darren Landrum wrote: > I hope someone can help me with this. > > I have: > > Athlon64 Dual-Core 6000+ > 2GB DDR3 RAM, running dual-channel > 3 x SATA hard disks > Emu 1212m sound card > Ubuntu Studio 7.10 (Gutsy, I think) > > Trying to run JACK at 44.1khz, at a 128 sample buffer I'm getting on the > order of 50-60 xruns a second. Even at a 4096 sample buffer, I was > getting one xrun every 2 seconds. I would think this setup should be > able to handle a 64 sample buffer without any trouble. > > The one caveat is I did have to compile the latest stable ALSA from > scratch, so that my sound card would work. Could it be related to the > still-beta driver for my Emu card? Or maybe I need to recompile ALSA > with some options? > > Thank you for any help. I talked to my programming prof about this, and he thinks the fact that I'm using a 64-bit OS might have a lot to do with it. I'll try installing the 32-bit version of Ubuntu Studio at some point this week and see if that changes anything (I keep all of my data on a separate partition, so it's not a huge operation for me). -- Darren _______________________________________________ Linux-audio-user mailing list Linux-audio-user(a)lists.linuxaudio.org http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user Make the switch to the world's best email. Get the new Yahoo!7 Mail now. www.yahoo7.com.au/worldsbestemail

16 years, 11 months

wireless and realtime?

by Jon H

Hey all, I've been having problems trying to find a realtime kernel that has decent wireless support. I tried JAD 1.0, which performed quite nicely, but did not have adequate wireless support or even madwifi "out of the box", which I apparently need. I'm running a D-Link DA-2320 PCI card which uses the Atheros chipset (madwifi?) and when I inquired about it on their forums it didn't seem to take much priority. I think 64Studio also struggled with this card but it's about the only chipset locally available that has any track record at all with linux. This card IS quite nicely supported under Ubuntu and family "out of the box" but the kernel supplied with UbuntuStudio, while it handles my wireless nicely, is more sluggish, in regards to latency, than the vanilla Ubuntu kernel. I'm not afraid to try building a kernel for myself, just wondering why so many realtime kernels seem to lack the proper wifi support that IS available to linux in general? I also seem to remember reading somewhere some problem with certain wifi drivers co-existing with a stack or something needed for realtime? Thanks in advance, Jon

16 years, 11 months

Ardour2 + Debian (Testing)

by Josh Lawrence

I had to install Ardour2 tonight on a new Debian Testing box, but could not find Ardour in the Testing repos, so I built it from source. I thought it might be a good idea to take notes, as it might help someone else: http://www.hardbop200.com/2007/11/18/building-ardour2-on-debian-testing/ Basically this just has the apt-get stuff all written out for you. Again, hope this is helpful. -- Josh Lawrence http://www.hardbop200.com

16 years, 11 months

Music video made with linux for music made with linux

by Ken Restivo

My 7-year-old daughter was transfixed by a stop-action video remix of a Familjen song, and wanted to do something like that. So I sat her down with a digital camera and told her to have at it: http://www.youtube.com/watch?v=c4huY3paWec Video made with linux (qiv, ImageMagick, mencoder, avimerge), to go with music made with linux (seq24, specimen, fluidsynth, hydrogen, etc). It's only 38 seconds long, since stop-action is tedious, time-consuming process. But she was thrilled to learn how to do animation, and I was thrilled to have a video for one of my tunes! -ken

16 years, 11 months

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Linux-audio-user January 2008