Linux-audio-user April 2006

linux-audio-user@lists.linuxaudio.org

171 participants
186 discussions

[linux-audio-user] Re: First trip to Europe

by olivier

>The french consular service are not really speedy when >it comes to >visa's. I'd avoid them. french administration is a big mess, try other options in the same time ... >I'm curious: Is hitchhiking legal in Europe ? that's legal, at your own risk, but assurances company make problems to the trucks, and to the professionnals drivers, they don't bring you anymore, and in the highway you can't be on the road or the peage, just before the peage, or on the rest area. that's not easy as it was, I'm not talking about social enginering just for fun ;-) ___________________________________________________________________________ Faites de Yahoo! votre page d'accueil sur le web pour retrouver directement vos services préférés : vérifiez vos nouveaux mails, lancez vos recherches et suivez l'actualité en temps réel. Rendez-vous sur http://fr.yahoo.com/set

17 years, 5 months

[linux-audio-user] Re: [linux-audio-dev] (no subject)

by Kjetil S. Matheussen

Esben Stien: > > "Kjetil S. Matheussen" <kjetil(a)ccrma.stanford.edu> writes: > >> snd as a widget in ardour > > How about doing this with the verse protocol and daemon or in the same > spirit?. That way, any editor that supports this protocol, could edit > a live region. > Thats an insanely large project you are proposing. :-) Hacking snd into ardour should only require a days work or something because snd can be compiled as a gtk widget.

17 years, 5 months

[linux-audio-user] Re: more on DVD and DVD audio

by Aaron Trumm

ok boys and girls i'm back here's a stupid question somebody may know about... if i were, say, encoding some AC3 file with, say, ffmpeg tools - would i start with a six channel wave file or something? and then what order are the channels in? i assume the encoder is going to have a way it wants to do that and if I have my center channel in what it thinks is right surround - well that could be a problem, yeah? my guess from the learning i've done so far is it goes: 1 - left 2 - right 3 - center 4 - sub 5 - right surround 6 - left surround anybody have confirmation? thanks! - A

17 years, 5 months

[linux-audio-user] Re: LKML: Time to remove LSM

by vlad

> I'm posting this just as a perspective ... > > I would rather use *BSD. > > for 2 reasons: > reason 1: (not really relevant here) > I like unix at its roots, it just makes me feel good. > > reason 2: (totally effin relevant) > The BSDs don't have this fractured user base. > Sure you can switch between Net* Open* and Free* (Dragon* too), > but you do that for big reasons *UP-FRONT*. > > Its frustrating how fractured linux has become. > (But, maybe it always was.) > Switching distros *IS* a solution. > Switching distros *IS* a solution that should only > happen *ONCE* because your switching from a bad distro. > > unix/linux is beautiful (in one sense, not all) because it lasts. > You can come back to a system that been sitting in a closet > (or sitting at a colo, doing its job) *YEARS* later, and > there it is. The computer. Working. Working well. > That's really nice. > > I use linux because of ALSA, period. > > We need to realize that an audio workstation is not a "server". > It is obvious that realtime takes precedence over security in > "audio land". (I don't mean that in a bad way at all.) > > BUT, linux is still a server OS too. Its kind of everything. > > uhmm, i don't remember what my point was, but i wrote too much > to delete it.... > > -- > paul w hello, i don't think this should be a discussion about changing the dists!!! moving to another distribution should be the last thing to do! and for better reasons then only a package that is newer or "better" or "easier" to handle. this is nonsense! btw, the libpam-modules package w/ rlimits is also in DeMuDi (from "http://demudi.agnula.org/images/1.2.1/README.PACKAGES": libpam-modules 0.76-22) and debian sarge and the current ubuntu (both also version 0.76-22). vlad

17 years, 5 months

[linux-audio-user] Ardour sound output problems

by tim hall

Does anyone have any useful insights into why ardour (0.99) so often starts up with no sound? - particularly if the last session was kicked out by jack (0.100.7). When it works it will run for a whole session, but I am having to reboot a little too often to get sound back for my liking. Restarting jack or alsa alone does not usually sort this. I am at such a loss to know how to debug this sort of problem The reproducible error is that jack kicks out ardour after more than 3 minutes recording. No sound out of any other audio application, even after restarting alsa. Usually at this point logging in/out does not help either and I have to reboot to get sound back. I have checked all the obvious things like channel inputs and outputs. However it is not always as predictable as this. I am using rather low-end hardware which may explain some things, like the short recording window. I think I have been fairly thorough with my system configuration, but there are so many variables to take into account. The one unusual thing I am doing at the moment is running rtlimits with positive nice values for non audio apps rather than negging the audio ones. Whether that is actually making any difference to anything is rather hard to tell at this stage. Linux xingta 2.6.16.5-realtim #1 PREEMPT Tue Apr 18 03:20:06 BST 2006 i686 GNU/Linux model name : Pentium III (Katmai) cpu MHz : 499.120 MemTotal: 320792 kB SwapTotal: 2000052 kB 0 [FM801AU ]: FM801 - ForteMedia FM801-AU ForteMedia FM801-AU at 0x1800, irq 10 Having to reboot after every take is a bit of a PITA. The problem seems to be ardour specific, but I am largely in the dark. What I could really do with is some guidance on how to go about troubleshooting and/or finding methods of getting the sound output back that do not involve rebooting. -- cheers, tim hall http://glastonburymusic.org.uk/tim

17 years, 5 months

[linux-audio-user] ANN: mjoo 0.0.4 released

by Leonard "paniq" Ritter

mjoo 0.0.4 has just been released. http://www.mjoo.org This is a big leap forward from 0.0.3, as I entirely reimplemented mjoo in Python, while keeping only the core dsp code in C++. The graphical subsystem is now powered directly by OpenGL, thus substantially faster on hardware accellerated video cards. What you can do with this release is use mjoo as a mixer for jack. You can add port cells to the view by right clicking into the mjoo window and picking an object type from the context menu. Use e.g. QJackCtl (http://qjackctl.sourceforge.net/) to connect other apps to mjoo and vice versa. Middle-click-drag resizes the cells. By moving a cell over another cell, the smaller cell has an influence on the larger cell. e.g. move a small "in"-cell over a larger "out"-cell. "in" will be routed to "out". The amplitude of the signal depends on how much of "in" is enclosed by "out". You can use the Ctrl key to select multiple cells. This release has also initial support for LADSPA plugins (DSSI plugins and serialization is supported but broken) and controllers. Click right on a LADSPA plugin in the view to bring up a new controller for it. I leave it up to you to find out how it works. -- -- leonard "paniq" ritter -- http://www.mjoo.org -- http://www.paniq.org

17 years, 5 months

[linux-audio-user] Re: LKML: Time to remove LSM

by vlad

> On Wednesday 19 April 2006 12:27, vlad was like: > > btw, the libpam-modules package w/ rlimits is also in DeMuDi > > (from "http://demudi.agnula.org/images/1.2.1/README.PACKAGES": > > libpam-modules ? ? ? ? ? ? ? ? ? ? ? ? ? 0.76-22) > > and debian sarge and the current ubuntu (both also version 0.76-22). > > Only the Ubuntu version is patched to support rtlimits. The versions in Debian also the breezy version? > are vanilla. Do not assume things based on version numbers alone. > but how can i recognize, whether the pam-modules support rtlimits or not? i guess, i am now totally confused?!? vlad

17 years, 5 months

[linux-audio-user] ANN: mjoo 0.0.5 released

by Leonard "paniq" Ritter

mjoo 0.0.5 has just been released. http://www.mjoo.org I extended the LADSPA plugin controllers with helper lines that visualize parameter values through angle and distance. ALSA Sequencer and DSSI plugin support is now in, although FluidSynth and XSynth aren't working at the moment. Loading/Saving should now work well. mjoo autoconnects to the alsa pcm out and ins now. A lot of bugs have been fixed. -- -- leonard "paniq" ritter -- http://www.mjoo.org -- http://www.paniq.org

17 years, 5 months

[linux-audio-user] back with some electrojazz...

by perlanegra proyect

Hi everybody... these days I've been playing with my little groovebox and I've performed the terrible soundcheck of some weeks ago... this one has been done with some more time, so it's a bit different from the other... (this one hasn't got that terrible hiss) it's still a single groovebox, but u can perform it, be free to use/sample/destroy it. 4 those electribe sound lovers, enjoy it... the link: http://www.archive.org/details/Pure_Groovebox_Series_EP (any kind of comment is good) -- ... visit always http://perlssdj.blogspot.com 4 cool stuff !!...

17 years, 5 months

[linux-audio-user] midi programming question regarding channels

by paul wisehart

Hi All, What's the canonical way to play a "one instrument" chord in midi? Do I send multiple note-on events to the same channel? Or, should I split them up into different channels, and make sure that the used channels have the same program (or patch-value?)? My intuition says stack up the notes on the one channel. That would be more analoguous to a band situation where each channel is an instrument. But, in practice are most midi synths able to handle enough multiple notes on a channel? For example a "piano" channel should be able to take up to say 5 notes, and still play them distinctly. Or the same with a guitar channel where a guitar chord is commonly plucked on 5 or 6 strings. I'm using a soft-synth in my developement/learning/experimenting, but I hope to eventually use hardware midi modules, and not have to modify my code. So quick question recap... "Should I stack up to 6 note-ons on one midi channel, or should I figure out how to split them up into multiple channels?" I've been reading up up on general midi issues, but I haven't seen any relevant docs about this. thanks for any info/pointers/flames, -- paul w

17 years, 5 months

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Linux-audio-user April 2006