Pd-list October 2007

pd-list@lists.iem.at

166 participants
302 discussions

Re: [PD] Array indexing for the wind and the birds
by Enrique Erne 31 Oct '07

31 Oct '07

On Ven Oct 26 1:26 , Roman Haefeli sent: >On Thu, 2007-10-25 at 16:22 -0400, Mathieu Bouchard wrote: > >> On Tue, 23 Oct 2007, Roman Haefeli wrote: > >> > >> > the main problem with dynamic patching is, that it is very likely, that > >> > it causes audio drop-outs. > >> > >> It wouldn't take much code to introduce something that can wrap dynamic > >> patching in a way that prevents any DSP recompilation at the wrong moment. > >> > >> E.g. If I have a patch that has 40 DSP objects, and then I instantiate an > >> abstraction that has 10 dsp objects, 20 times, this recompiles DSP 20 > >> times, taking a total of 10*(40+(10+10*20)/2) = 1450 dsp_add calls. If the > >> dynamic creations dominate, the time increases quadratically, which is one > >> kind of "gets bad quite quickly". > >> > >> Bracketing a bunch of dynamic object creations with a dsp-disable / > >> dsp-enable pair, you just recompile once at the end, in the above example > >> totalling to 40+10*20 = 240 dsp_add calls, which is exactly the size of > >> the dsp graph you have at the end. > > > >that is what i do in netpd since last change. whenever a patch is > >loaded, it is not openen per message anymore but created dynamically as > >an abstraction. i found out, that it takes _much_ less time, if dsp is > >turned off before and turned on after creating it. this is probably the > >difference between what you describe as linear and quadratic increase. > > > >> Getting any better than linear time is somewhat harder, especially for pd, > >> but linear is already much better than quadratic. > >> > >> > especially when creating ~-objects, the dsp graph needs to be > >> > recompiled, which requires some cpu power. > >> > >> ... uninterruptible cpu power. > >> > >> but if patches don't expect the dsp to be updated immediately, the job > >> could be spread over several logical time blocks. > > > >don't know how to do that. there is no way in pd to tell how much behind > >schedule pd is with computing, or is there? anyway, in the case of netpd > >it wouldn't help anyway, since complete patches are created as single > >abstractions. i wouldn't know how to break that into smaller chunks. > there was a thread: slowly load patches/abs without dropout http://lists.puredata.info/pipermail/pd-list/2007-01/046107.html the attached patch reads and creates a patch slowly triggered by a metro. as far as i remember i didn't implemented a correct array-creation. eni

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resyncing audio
by matteo sisti sette 31 Oct '07

31 Oct '07

Hi, I'm using PD Vanilla 0.40.2 under WinXP, with a Motu Ultralite soundcard, of which I use 4 channels in and 2 channels out. I don't use ASIO, because I coundn't in any way get more than 2in/2out channels working with asio (with this card), and because with asio enabled I sometimes got some pd crashes. So I enabled an option in Motu's control panel that puts it in some sort of "legacy" mode which allowed PD to recognise all its channels in mmio mode. Also, I send and receive MIDI events (mention it just in case it may be related) Every once in a while, I get a "Resyncing audio" message. Forgive my ignorance, but what does it mean exactly? I heard about a "-noresync" command line option, but I can't see it listed when I type "pd -?", and also I don't know what side effects it could have? I'm not sure about what triggers the "resyncing audio" messages. Every once in a while, in my patch it happens that I trigger too many events at the same time causing small audio dropouts (obviously I'm trying to fix this) but I'm not sure whether that's when I get "resyncing audio". Should I expect it to be so? Thank you in advance m. -- Matteo Sisti Sette matteosistisette(a)gmail.com http://www.matteosistisette.com

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"gl invalid enumerant" on windows with Intel graphics card
by altern 30 Oct '07

30 Oct '07

hi again For an installation i have to use a machine with a built in Intel graphics card (dont know exactly the card). I was able to test it briefly but i get an error "GL invalid enumerant" (or something like this, the output is in spanish) and the webcam texture is not loaded, so i just get a white rectangle. I guess the error comes from pix_texture. However I only get this error on that machine. No other machine i tested the patches in had any problem like this. I have been checking the pd list and i found here http://lists.puredata.info/pipermail/pd-list/2007-01/046438.html a suggestion to send "mode 0" to pix_texture. I have not been able to test this as I dont have the machine with me. But i will have access to it tomorrow for very limited time so i would like to know in advance if this might be a solution or if there are other approaches to this issue. thanks enrike

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Re: [PD] Ableton Live control with Pure Data ¿ReWire?
by Max Neupert 30 Oct '07

30 Oct '07

good to know. now i have something what i can recommend to my windows friends. http://www.midiox.com/index.htm Am 27.10.2007 um 02:28 schrieb Matthew Logan: > Arduino>Pd>MIDI Yoke>Live. I'm on Windows and that's what I use. > > On 10/26/07, Max Neupert <abonnements(a)revolwear.com> wrote: whoops, > i forgot you're on windows - i'm sorry (for the noise). > > > Am 26.10.2007 um 20:23 schrieb Max Neupert: > > > you're thinking too complicated. > > just use > > arduino -> Pd -> MIDI -> Live > > very simple. > > > > > > > > Am 26.10.2007 um 14:53 schrieb Enrique Tomas: > > > >> Hi amigos > >> I have a question. I would like to control an Ableton Live version > >> 6 session using my Arduino based interface (under Windows ) . My > >> project is controlling Live with an Arduino. > >> > >> Because Ableton Live doesn't have OSC...(and liveapi.org is down) I > >> think that the only way to do that is ReWire. > >> I have tried to configure Pd in Ableton Live ReWire settings but I > >> can't see Pd as an available input. ReWire is configured because I > >> can see other software as Cubase, Reason, etc. > >> > >> Does anyone have an idea about how to do this? Is there any other > >> option? > >> > >> thanks > >> Qq > > > > _______________________________________________ > > PD-list(a)iem.at mailing list > > UNSUBSCRIBE and account-management -> http://lists.puredata.info/ > > listinfo/pd-list > > > _______________________________________________ > PD-list(a)iem.at mailing list > UNSUBSCRIBE and account-management -> http://lists.puredata.info/ > listinfo/pd-list >

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patch for dollar sign fix in pd-extended?
by Rich E 30 Oct '07

30 Oct '07

I was wondering if there is a way to get Miller's fixes for the dollar sign variables into the pd-extended build. I have some patches that use sends like "$1.$2-volume", which works fine in pd v.40, but not in .39. I'd like to keep using pd-extended, Hans has done an excellent job with all the extra externals and making it look nice. Alternatively, I could try to add the extra features I like within pd-extended to Miller's pd. I have done this with the [libdir] object, which seems to be working, but the fonts are still ugly. Is there an easy way to get pd-extended fonts into the miller-pd? regards, rich

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Good sounding PD reverb patches - anyone?
by Thomas Jeppesen 30 Oct '07

30 Oct '07

Hi all, I'm looking for good sounding reverb patches. Hopefully some that are more complex and better sounding than the one distributed with PD. So are there anyone out there experimenting with reverb-algorithms in pd? And are you willing to share your patches? Cheers! Thomas :)

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Set as maximum value of a number box, another number
by Javier Garcia 29 Oct '07

29 Oct '07

hi, I would like to set as maximum value of a number box, the number of the frames of a movie. You know, for example [pdp_qt] sends the number of the frames of the video you open. Is it possible? br. GARFF _________________________________________________________________ Express yourself instantly with MSN Messenger! Download today it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/

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big files with textfile
by marius schebella 29 Oct '07

29 Oct '07

Hi, textfile can handle bigger files than msgfile, but there seems to be a limit, too. I tried to open a >250MB file, and Pd crashed. marius.

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Bbang ~ Max/Pd users group in Brussels
by Andrew Brouse 29 Oct '07

29 Oct '07

Dear Pure Data and Max programmers, A new users group is being set up in Brussels for those interested in Max and Pd. Yves Bernard of iMAL has kindly set up a mailing list to further this end, more info is here: http://www.imal.org/mailman/listinfo/bbang Anyone is welcome to subscribe and those interested in participating in this group are highly encouraged to do so. Pd and Max enthusiasts from within the surrounding high-speed rail neighbourhood are especially welcome. We are looking towards planning a first meeting sometime before the end of this year with following meetings happening approximately monthly. best regards, Andrew Brouse

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pix_movie from CVS
by Olivier Heinry 29 Oct '07

29 Oct '07

hi list, I compiled on staruday latest Gem CVS version. I noticed a new outlet on pix_movie and asked myself what it could be (though I read it should show FPS). Binding a print box to it hasnt revealed much. ++ O.

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Pd-list October 2007