Pd-list January 2008

pd-list@lists.iem.at

133 participants
232 discussions

Notch filter
by yvan volochine 24 Jan '08

24 Jan '08

Hello all ! I'd like to make a 2pole notch filter. I found a few topics about notch filters on this list but I didn't understand everything. I read that I could make one with biquad~ but this object is somehow obscure to me. I don't know how to deal with the 5 parameters. In maxmsp, you have the filtergraph~ object which "translates" your Freq, Q and so on for use with biquad~ but in pd I just don't get it... The filtergraph pd objects are also difficult for me to understand. Could someone explain me how I can make a notch with biquad~ (or with any other native pd objects) please ? Thanks. _y

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[PD-announce] Pd 0.41-0 released
by Miller Puckette 24 Jan '08

24 Jan '08

Pd 0.41-0 is available on CVS and on http://crca.ucsd.edu/~msp/software.html cheers M _______________________________________________ PD-announce mailing list PD-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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[PD-announce] Formation PureData au CRAS à Mains d'Oeuvres (Saint-Ouen)
by Jack 24 Jan '08

24 Jan '08

Initiation à Pure Data, niveau 2. Dimanche 27 janvier 2008 de 11h à 18h. Salle Star Trek (deuxième étage). La formation permet de progresser dans la compréhension et l'utilisation du logiciel. Les exemples utilisés pour l'apprentissage permettent de gérer textes, sons, videos, objets 3D. L'apprentissage se fait au pas-à-pas, en suivant une progression lente de manière à bien intégrer les bases. Formation pour 30 participants. Pré-requis: il est nécessaire d'amener votre ordinateur. Cette journée est destinée aux débutants qui ont suivi la journée du 20 janvier 2008, ou à ceux qui ont commencé un auto-apprentissage de PD. Formateur : Jean-Marie Boyer Réservations obligatoires à : formations (à) craslab.org Tarif plein 20 € / Tarif réduit 15 €, sur présentation de justificatifs (chômeurs, étudiants, adhérents Art Sensitif, Audoniens). _______________________________________________ PD-announce mailing list PD-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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Basic question about Mac Os X
by marco trevisani 24 Jan '08

24 Jan '08

After 13 years working with Linux i have now to deal with a Mac (for instance an iMac running 10.4.11 and pd 0.39-extended) and all seems new.... the basic question then... while i wait for a USB card (btw any recommendation is very welcome) i was trying making some test with PD patches but when i connect and use the line-in built-in in the machine i have troubles getting any recognizable sound to the dac~. It looks like the problem is with the adc~ since osc~ to dac~ produce the sound i would expect to hear. I put to zero the built in microphone (is there any way to mute it completely??), and played with line in levels but nothing acceptable is coming out. Just to clarify, the problem seems related directly with PD, because other applications that use line in they reproduce the sound at a decent quality. Any hint would be greatly appreciated...Sorry for downgrading the level of the discussion on this list... :-) Thank you, ciao, marco trevisani

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Interesting behaviour in Vanilla PD using 'expr'
by Mike McGonagle 23 Jan '08

23 Jan '08

Hello all, Last night I was trying to learn a bit about the 'expr' external, and I found something that would probably be considered a bug. I opened up the help file for 'expr', and then opened up the Lorenz example. I started the audio generation, and banged on the example. It started to play, and play, and play... I didn't stop the example, but I did close the window for the example, and it continued to play, and play, and play... I then tried the same thing in Extended (one of the more recent nightly builds), and it doesn't do the same thing. It shuts the audio down. Mike

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convert reson filter bandwidth to decay time
by Libero Mureddu 23 Jan '08

23 Jan '08

Hi, I have a simple patch with a [click~] object connected to a [reson~] filter. I'd like to know how it is possible to convert the bandwith parameter of the filter to decay lenght (in milliseconds). In SuperCollider there is a particular version of the "resonz" filter called "ringz", here is the description: Ringz.ar(in, freq, decaytime, mul, add) This is the same as Resonz, except that instead of a resonance parameter, the bandwidth is specified in a 60dB ring decay time. My knowledge of filters is too little to be able to convert the between the two parameters by myself, any help appreciated! thanks, libero

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need help for pd + arduino (ubuntu)
by francois 23 Jan '08

23 Jan '08

Hello, I'm trying to comunicate pd with arduino (under linux ubuntu), with pduino for example, but my pd 0.40-2 version doesn't have "pd-cvs/externals/iem/comport". Where can I find externals? I suppose I will need as well "pd-cvs/externals/iemlib" and "pd-cvs/externals/hardware/arduino" maybe? I tried to install a pd extended version from http://puredata.info/downloads but the installer is asking for "libflac7"... May I get some help? Thanks a lot. FranÃ§ois

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Gem slow down in Ubuntu 7.10 amd64
by Vadim Smahtin 23 Jan '08

23 Jan '08

Hi. I have trouble, using gem in Ubuntu Gutsy 64. When i create Gem window and start render i always get somthing, such a- "can't create single buffer window, serious error". Then i have big slow down for all video in gemwin. If i disable desktop effects, i also get slow down in all my videoplayers in Ubuntu. How i can fix it? I think, problem in videodrivers, or PD rendering type. Sorry for basic questions, it's my first OSS system and program. Big thx.

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Re: [PD] [GEM] Initialization arguments
by beau 23 Jan '08

23 Jan '08

Is it possible to send PD a variable at startup. I.E. I want to create a patch that loads a simple model. The catch is I want to send the model to load at start of pd. for example: pd -modelpath [load $model] | | | [Model]

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Fwd: another [declare -lib] strangeness
by Mike McGonagle 23 Jan '08

23 Jan '08

---------- Forwarded message ---------- From: Mike McGonagle <mjmogo(a)gmail.com> Date: Jan 23, 2008 1:49 PM Subject: Re: [PD] another [declare -lib] strangeness To: IOhannes m zmoelnig <zmoelnig(a)iem.at> I can't seem to recreate this with structs. I will have to look back through some of my older stuff, as I would get messages warning of duplicate struct definitions, and to get rid of it, I would delete the first line from the parent of the subpatch containing the struct declaration. Mike On Jan 23, 2008 1:24 PM, Mike McGonagle <mjmogo(a)gmail.com> wrote: > Hum, I have noticed something similar when declaring struct objects, too. > Is this a related behavior? > > Mike > > > On Jan 23, 2008 9:58 AM, IOhannes m zmoelnig <zmoelnig(a)iem.at> wrote: > > > hi > > > > originally i wanted to write the following feature-request: > > using [declare] to load libraries (e.g. [declare -lib mylib]) works > > nicely. > > however, when i have several abstractions all depending on the same > > library (and thus all have an instance of [declare -lib mylib]), i get > > an error "mylib: already loaded" for each abstraction depending on > > "mylib" but the first. > > would it be possible to suppress this warning? (i don't see a reason to > > keep it) > > > > i wrote a wee example to illustrate this behaviour, and while doing so i > > noticed a real weirdness: > > when i save a patch holding an abstraction with a [declare -lib mylib], > > this parent patch will also have the "#X declare -lib mylib" line > > (without a direct representation in the patch) > > what is even weirder is, that it gets an additional line for each > > abstraction containing a [declare]. > > e.g. if i have 4 instances of an abstraction in my patch, i will get 4 > > additional declare-lines. > > loading this patch, i will get 7 errors that "mylib: already loaded" (4 > > warnings from the abstractions; 3 warnings from the patch; only the 1st > > declare-line in the patch gets evaluated properly) > > > > is this by design? > > or is it a "bug"? (i cannot see any harm right now, but it is a bit > > annoying) > > > > > > all this is happening with Pd-0.41-0test11 on linux. > > > > fgmasdr. > > IOhannes > > > > _______________________________________________ > > PD-list(a)iem.at mailing list > > UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list > > > > > > > > -- > Peace may sound simple—one beautiful word— but it requires everything we > have, every quality, every strength, every dream, every high ideal. > —Yehudi Menuhin (1916–1999), musician > -- Peace may sound simple—one beautiful word— but it requires everything we have, every quality, every strength, every dream, every high ideal. —Yehudi Menuhin (1916–1999), musician -- Peace may sound simple—one beautiful word— but it requires everything we have, every quality, every strength, every dream, every high ideal. —Yehudi Menuhin (1916–1999), musician

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Pd-list January 2008