Linux-audio-user June 2008

linux-audio-user@lists.linuxaudio.org

138 participants
116 discussions

by Johannes Mario Ringheim

After upgrading to Ubuntu Hardy (8.04), I'm having (too many) xruns on two different machines. Both worked perfectly on 7.04. On both machines the "RT" indicator on qjackctl keeps blinking. On 7.04 it was always dimmed, and everything worked fine. Does someone know what that "RT" indicator in qjackctl means? When it is dimmed, do you not have proper realtime scheduling? On my laptop, with a Behringer UCA202 USB soundcard, there are xruns on some of the "RT" blinks. On my PC, with an M-Audio Delta66, there are one xrun on the first blink, and on every subsequent blink a message saying "XRUN callback (40 skipped).". Then there's about forty lines saying "delay of 36196.000 usecs exceeds estimated spare time of 11579.000; restart ...". I've included a portion of the jackd output below. Things I've tried so far are modifying /etc/security/limits.conf, installing linux-rt kernel and adding "nohz=off" in /boot/grub/menu.lst. I've also tweaked the settings in qjackctl. Higher latency makes less of the problems, but there are still xruns while the computer(s) are idle. Any suggestions would be welcome! --- 19:15:36.392 /usr/bin/jackd -R -P70 -dalsa -dhw:1 -r44100 -p512 -n3 jackd 0.109.2 Copyright 2001-2005 Paul Davis and others. jackd comes with ABSOLUTELY NO WARRANTY This is free software, and you are welcome to redistribute it under certain conditions; see the file COPYING for details JACK compiled with System V SHM support. 19:15:36.410 JACK was started with PID=6360. loading driver .. apparent rate = 44100 creating alsa driver ... hw:1|hw:1|512|3|44100|0|0|nomon|swmeter|-|32bit control device hw:1 configuring for 44100Hz, period = 512 frames (11.6 ms), buffer = 3 periods ALSA: final selected sample format for capture: 32bit little-endian ALSA: use 3 periods for capture ALSA: final selected sample format for playback: 32bit little-endian ALSA: use 3 periods for playback 19:15:38.553 Server configuration saved to "/home/djauto/.jackdrc". 19:15:38.554 Statistics reset. 19:15:38.601 Client activated. 19:15:38.603 JACK connection change. 19:15:38.625 JACK connection graph change. 19:15:42.826 XRUN callback (1). delay of 36342.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36257.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36270.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36270.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36278.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36286.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36274.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36275.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36275.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36279.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36276.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36263.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36271.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36275.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36277.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36277.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36278.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36279.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36280.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36273.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36273.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36274.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36280.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36273.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36275.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36281.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36278.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36275.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36273.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36276.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36258.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36265.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36277.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36275.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36283.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36276.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36272.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36276.000 usecs exceeds estimated spare time of 11564.000; restart ... 19:15:44.609 XRUN callback (37 skipped). delay of 36275.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36271.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36275.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36274.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36275.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36278.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36274.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36271.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36275.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36286.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36261.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36255.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36261.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36272.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36275.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36276.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36277.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36281.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36276.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36274.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36273.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36283.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36274.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36275.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36277.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36275.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36281.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36281.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36286.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36282.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36275.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36269.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36280.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36285.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36276.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36284.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36276.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36276.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36280.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36275.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36271.000 usecs exceeds estimated spare time of 11564.000; restart ... 19:15:46.613 XRUN callback (40 skipped). delay of 36289.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36262.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36279.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36280.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36276.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36282.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36274.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36277.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36255.000 usecs exceeds estimated spare time of 11564.000; restart ... delay of 36271.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36274.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36279.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36275.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36272.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36278.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36280.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36276.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36275.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36280.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36273.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36272.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36272.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36279.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36280.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36273.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36278.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36263.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36256.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36263.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36278.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36283.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36277.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36276.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36273.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36274.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36273.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36272.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36275.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36274.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36277.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36276.000 usecs exceeds estimated spare time of 11579.000; restart ... delay of 36273.000 usecs exceeds estimated spare time of 11579.000; restart ... 19:15:48.617 XRUN callback (41 skipped). -- Ringheims Auto - Fri musikk for bilstereo! http://ringheimsauto.org

16 years, 5 months

looking for alternatives to ac3jack, because it just won't build

by Eric Steinberg

I'm unable to build ac3jack on my Hardy system; stuck in dependency hell. Is there another way to output an AC3 stream so that I can mix audio for DVD? Or is there a .deb somewhere for ac3jack?

16 years, 5 months

Microtuneable Software / Piano

by Peter Plessas

Dear List, i am searching for a way to simulate a microdetuned piano using some softsampler or other instrument on linux. So far i have been using fluidsynth for normal tuning, but need to specify the tuning myself for an upcoming piece. Any hints are greatly appreciated, regards, PP

16 years, 5 months

I found IT !! asoundconf-gtk

by Leonardo Palomares

Looking for an easy way to select one or other audio card... I always having problems with this (have tried alsa instructions, but it is though for me) found this small applet, but very good indeed(well for me, it is great) asoundconf-gtk maybe here is someone who can get use for it too. sorry for the noise to the rest out there. Greets Leo

16 years, 5 months

psychosynth error

by schoappied

Hi, When I want to install psychosynth at Debian lenny/sid I'll get: $ psynth3d [/xmlconf] ERROR: Could not open config file for reading: /home/dirk/.psychosynth/psychosynth.xml [/gui] INFO: Loading settings. [/xmlconf] ERROR: Could not open config file for reading: /home/dirk/.psychosynth/psynth3d.xml [/gui] INFO: Initializing Ogre. [/gui] INFO: Initializing OIS. [/gui] INFO: Initializing synthesizer. sample_rate 44100 block_size 256 num_channels 2 [/alsa] WARNING: Could not write to device. (Broken pipe) [/alsa] WARNING: Could not write to device. (Broken pipe) [/alsa] WARNING: Could not write to device. (Broken pipe) [/alsa] WARNING: Could not write to device. (Broken pipe) [/alsa] WARNING: Could not write to device. (Broken pipe) [/alsa] WARNING: Could not write to device. (Broken pipe) [/gui] INFO: Initializing networking. [/gui] INFO: Initializing scene. [/alsa] WARNING: Could not write to device. (Broken pipe) [/alsa] WARNING: Could not write to device. (Broken pipe) [/gui] INFO: Initializing CEGUI. [/alsa] WARNING: Could not write to device. (Broken pipe) terminate called after throwing an instance of 'CEGUI::GenericException' Aborted Help needed at studioschoappied! ~d

16 years, 5 months

Watching how others do their audio work

by Ken Restivo

Some folks on em411.com have started doing what I consider to be a very useful and helpful thing: they are posting screencasts of them doing their audio work. http://www.vimeo.com/1175424 http://www.vimeo.com/1177447 http://www.stickam.com/editMediaComment.do?method=load&mId=179552672 I find it very educational to see their workflow, how they compose, and how they navigate through their sequencers, synths, and DAWs. It might be helpful to other Linux audio users if some folks could post screencaptures of them navigating through Ardour, Rosegarden, Muse, Seq24, CheeseTracker, or whatever. It also might be helpful to the developers of Linux audio programs to see the steps the users take and where the workflow or presentation might be improved or streamlined. Also, what screen capture program do you recommend for linux? One that will support JACK and capture the alsa_pcm output sync'ed to the screen capture? I haven't been doing much studio work lately (it's all been live stuff) but I might have a go at this sometime too. By the way, I assert(Vimeo > YouTube). Vimeo videos are easier to download, the quality is MUCH higher, and the A/V sync is much better. -ken

16 years, 5 months

Newbie wiki

by schoappied

Hi, There is an article for newbies online, to introduce Linux for music composing and production. It is written for people who have no experience with Linux and people who work with Linux but not with Linux audio yet. So it contains information about Linux, Linux audio applications, installation, dualboot, Linux audio distributions, hardware support, VST issue, commercial software and introducing JACK and Qjackctl. You can find the article at: http://wiki.linuxmusicians.com/doku.php?id=newbies Comments are welcome. ~d

16 years, 5 months

Re: [LAU] Rosegarden/distro

by Svend-Erik K Madsen

Roger E skrev: > > > Svend-Erik Kjær Madsen wrote: >> lør, 14 06 2008 kl. 13:48 +1000, skrev Roger E: >> >> >>> You're bound to get some comments on a post like that! >>> I agree that studio64 is probably the best. I don't use Suse on the >>> getting in bed with the devil principle. But I also prefer Kde or >>> Xfce to Gnome. >>> The latest Musix is very impressive, though maybe not really cutting >>> edge. dyne:bolic is very cool. >>> However I make most music on my everyday Debian/kde testing, which >>> is updated regularly. No RT kernel like Studio64 or Musix etc., but >>> Jack still runs nice with about 6ms latency on the vanilla kernel. >>> And no rebooting after browsing, mailing or killing evil zombies in >>> a 3d game. :) >>> >>> Roger >>> >> >> Hi Roger >> >> Could you share the secret behind getting a plain debian running >> "stable" round 6ms without any other apps affecting the invironment ? >> I guess if you have found the right settings it does not matter which >> desktop to choose ? >> >> /Sv-e >> >> >> >>> _______________________________________________ >>> Linux-audio-user mailing list >>> Linux-audio-user(a)lists.linuxaudio.org >>> http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user >>> >> >> >> > I've attached a png snapshot of my Jack settings. Just about to leave > for work or I'd send text. (or which text file has these?) > I think my secret is using an M-Audio Audophile 2496. > And the kernels in an updated testing (Lenny atm) seem to get more > audio-friendly over time so stable (Etch atm) may be a little harder. > Then again Musix is based on Etch and works great. > > Cheers,Roger > > ------------------------------------------------------------------------ > Ok, I've got an RME Multiface, but if I use a samplerate of 96000 my ADAT is no good. /Sv-e

16 years, 5 months

Graduating from Ubuntu Studio

by Christian Delahousse

Hey Guys, I started playing with Ubuntu Studio and Linux about a year ago and I now feel that I am passed the beginner level. I don't have an indepth knowledge of the command-line but I do know my way around, I have a good knowledge of the way things work and I've learned the software fairly well. Lately, Ubuntu Studio has been getting on my nerves with all the bloat. I just want a system for digital signal processing (ie. a computer version of a guitar pedal board) with the lowest latency possible and Ubuntu seems to be taking up alot of space and resources. So, I think I'm at the level where I can benefit from a stream lined, more "user-unfriendly" system. Firstly, do you guys think that a move away from Ubuntu Studio would be beneficial? Secondly, what would you guys suggest as a good alternative? I've heard good things about Studio64 and Debian... Any advantages with these? I'll be installing it on a AMD64 equipped laptop. I want the focus to be on realtime stuff but I might run a few WINE apps and maybe VSTs. Thanks -Chris

16 years, 5 months

Slightly OT: Re-Installing GRUB

by Christopher Stamper

It's kinda OT, but I really need some help and this is the most active forum I know of. I've been running a dual-boot system: Ubuntu Studio and Window$ XP. Of course, Windows needs reinstalled every month because of 'problems', so I just finished a reinstall. The problem is, it re-wrote my MBR and put its dumb boot loader in. Now my pc will only boot windows, because GRUB is no longer in the MBR. My drive looks like this: hd0,0: Windows hd0,1: swap hd0,2: Studio So I need to have GRUB in (hd0,0)'s MBR to boot. When I try "grub-install /dev/sda0" it install grub. However, using the chainloader on (hd0,0) causes grub to start *again *instead of windows, thus causing an endless loop. So I need to install it in the MBR without messing with the boot sector, I think. (I've done the dos command fixmbr and fixboot, so now windows boots and linux wont again.) Any suggestions would be greatly appreciated! Thanks! (I'm not at all worried about messing with my MBR) -- Christopher Stamper Email: christopherstamper(a)gmail.com Web: http://tinyurl.com/2ooncg gTalk: http://tinyurl.com/6e359r Skype: cdstamper

16 years, 5 months

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Linux-audio-user June 2008