Linux-audio-user October 2009

linux-audio-user@lists.linuxaudio.org

141 participants
173 discussions

by David Adler

Hello list, stumbling across some questions while editing, I raised two little issues on the 'Open Discussion' page of wiki.linuxaudio.org http://apps.linuxaudio.org/wiki/open_discussion#tagging_rules_for_plugins http://apps.linuxaudio.org/wiki/open_discussion#vamp_plugins_license_issue Given the small amount of activity there I thought posting here might accelerate the process. Could someone more involved than me please have a short look into it? regards, d

16 years

Live CDs

by Leslie P. Polzer

Hi folks, I'm looking for a good Live CD/DVD for music production. Some of the things I'd like to see: * preferably based on Ubuntu * decent hardware detection * recent versions of ZynAddSubFx, Guitarix, Bristol, QJackCtl, Rosegarden, Seq24, Hydrogen, QAMix, QSynth (but see the next point) * ability to add custom packages after booting; a build environment that lets me compile stuff residing on an USB stick would probably be the best solution There seem to be quite a few well-maintained Live distributions geared towards audio production out there, but I don't really want to download and test each one, so I'd like to hear about your experiences with them. Thanks! :) Leslie -- http://www.linkedin.com/in/polzer

16 years

linux-rt in Ubuntu Jaunty

by Josh Lawrence

Hello everyone, I remember some time back there were complaints on this list about the linux-rt kernel in Ubuntu Jaunty not being up-to-par for audio work. What were some of those complaints, and has the issue been resolved? -- Josh Lawrence http://www.hardbop200.com

16 years

The realtime preemption mini-summit

by Kim Cascone

http://lwn.net/Articles/354690/

16 years

LinuxSampler web site

by Kim Cascone

any have any info on what's up with the LinuxSampler web site? http://www.linuxsampler.org/ I haven't been able to get on it anyone else having this problem?

16 years

Re: [LAU] Live CDs

by Kim Cascone

> > Sadly though, the linux community still has many people who scream RTFM > when people ask for help. > I find this has become rampant in the Linux community - whereas back in 2006 when I started tinkering with Ubuntu on a PPC this was not the case... there has been a huge influx of people who like brow beating someone else in order to feel smarter e.g. better or superior to others...this is weenie behavior and it's a shame that this sort of attitude exists, especially in the music/audio FOSS community where educating others is imperative to keeping our community growing and being innovative > I made a simple inquiry in the #ardour channel a few months ago, and one > user who shall remain nameless felt it necessary to open up a private > chat window to be a miserable SOB and belittle me (and someone else that > I know) about our lack of knowledge in this one area. Not cool. personally, I've not found this attitude on the Ardour forum or on the email list but have not used the IRC channel so I can't comment on this as for building my own kernel: I'm a composer, touring musician and writer who doesn't have the time to start chasing down deps and trouble-shooting compile errors -- as much as I wish this were all a hobby I could poke at on the weekends I'm on constant deadlines and schedules that keep me busy at least 10 hours a day, 7 days a week. And since royalties are a thing of the past for most electronic musicians, wearing many hats is the only way one can make a living at this - and wearing many hats translates to a 70 hour workweek. So building my own kernel, app, plugins, whatever is a afternoon project I can't afford to spend time on without shooting myself in the foot. And is why some of us don't 'roll our own' and depend upon either those who do or use the repositories. Hence, bleeding edge instability and beta-testing updates/patches/new versions are not things professional musicians can afford to deal with. But I do appreciate the people who create places like GetDeb http://www.getdeb.net/ where those of us without the bandwidth can download binaries of the apps we need, install them and get up working as quickly as possible. I also appreciate developers who can interface with distro repositories well enough to keep updates of their software available. I also find the range of musicians on this list refreshing and enlightening -- some of you have spent time teaching me about the intricacies Linux audio and for this I'm eternally grateful. The willingness to teach others is what makes a community valuable IMO. just my 0.02 ciao! KIM

16 years

M-Audio FastTrack Pro, all four outputs in jack

by Dan S

Hi all - I use an M-Audio FastTrack Pro (USB soundcard) and it's nice - works smoothly with jack - except that it has four audio outputs, presented split into separate devices: * Device hw1:0 has the first two outputs * Device hw1:1 has the second two outputs and the two inputs Jack will only connect to one of the two devices for output, so I can't get four-channel output from my jack apps. This thread <http://www.mail-archive.com/alsa-user@lists.sourceforge.net/msg23839.html> suggests that using .asoundrc to aggregate the two devices into one virtual device should work, but for me it simply doesn't, the virtual device never shows up in qjackctl and even jackd from commandline can't connect to it by name. Has anyone experienced anything similar, and/or have any suggestions? Crazy workarounds welcome. Thanks Dan -- http://www.mcld.co.uk

16 years

Restrict qsynth to one MIDI channel?

by Jonathan E. Brickman

I want to have qsynth sit on just one MIDI channel, so I can switch sound production engines from Yoshimi to Qsynth and back with just a simple on-keyboard command. But Qsynth seems to insist on occupying the whole 16-channel-minimum spread, and my keyboard won't choose channels over 16. Anyone have a way? J.E.B.

16 years

Playing back clicks - where to dig in?

by Andrew Gaydenko

Hi! I use Kubuntu Karmic testing (will be released 29 Oct). After some upgrade I have got this problem: on high system load (say, building NetBeans from sources or other JVM-running intensive task - JVM is very greedy wrt CPU, starting multiple threads) clicks takes place on playing back (doesn't depends on player - MPD (very stable!) and Amarok using shows the same result). At first I have tried to play with different io schedulers: deadline and noop seem to be slightly better rather anticipatory and cfq, but still stutters takes place. So the problem seems to be related with CPU shareing rather hdd access. Where to dig in further? I'd like to avoid using of rt-kernel as far as I know generic one is able to be smooth wrt my situation.

16 years

vanilla kernel question

by Josh Lawrence

all of the recent talk about kernels has raised a question in my mind: if you are running a vanilla kernel (that is, without the realtime patch), do the typical pam settings made in limits.conf still apply? @audio - rtprio 99 since there is no "realtime" patch, would the rtprio setting become pointless? -- Josh Lawrence http://www.hardbop200.com

16 years

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Linux-audio-user October 2009