Pd-list September 2006

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139 participants
230 discussions

[Pdmtl] PDMTL LE 16 SEPTEMBRE (fwd)
by Mathieu Bouchard 12 Sep '06

12 Sep '06

as originally posted on pdmtl(a)artengine.ca (http://ns.artengine.ca/mailman/listinfo/pdmtl) .----. ,-o---------------------. | ,-o-------------------------- ----- --- -- - | PUREDATA MONTRÉAL #22 | | | Summary: `-o-------------------o-' | | MIKE WOZNIEWSKI about AudioTWIST | `--' | THOMAS O FREDERICKS about Arduino/Wiring .-o---------------- -------. | ALEXANDRE QUESSY about Craslab | Samedi 16 septembre 2006 | | THOMAS O FREDERICKS about 8teen | 13:00 à 17:00 | | MATHIEU BOUCHARD about DesireData `-o------------------------' `---------------------------- ----- --- -- - | [t a a]-----. | | ,-o-----, ,-o---------------------------------------------------------, | $0 / | ; at Atelier RATs (atelier de Marc Fournel) / | \ | 6545, avenue Durocher, Espace 401 Montréal / `-o-----` | près du coin Parc/Beaubien \ | | http://artengine.ca/pdmtl/rats_map.jpg \ | `-----------------------------------------------------------` [t a a] | | | .-o--------------------------------------------------- ----- --- -- - | | 1. MIKE WOZNIEWSKI - AudioTWIST | | | | I will be presenting material based on my Masters' thesis, which is | | now a major component of AudioTWIST (soon to be released as part of | | the 'Territoires ouverts' project at la SAT). | | | | AudioTWIST is a 3D audiovisual framework intended to support | | interactive audio installations and live performance with 3D sound. | | It allows for the creation of modelled virtual environments where | | objects in 3D space are used control audio processing. Users have | | very detailed control over the directivity of sound and the | | parameters of acoustic propagation. Audio can thus be 'directed' | | through a virtual scene in a precise manner, allowing for | | complicated DSP tasks to be performed. | | | | The framework is deployed as a set of Pd objects and patches that | | artists can use to organize their interactions and controls. | | Custom-designed Pd externals provide access to various classes | | from the OpenSceneGraph (OSG) library, which allows for a graphical | | rendering of the scene. Additionally, OSG allows importing of various | | model formats (.3ds, .obj, .flt, etc.), animations, lighting, and | | various other 3D graphics tools. The combination of Pd and OSG gives | | artists the ability to create immersive environments with distributed | | rendering, fully three-dimensional audio, and simple high-level | | control of 3D content. | `-o--------------------------------------------------- ----- --- -- - | [t a a] | | | .-o--------------------------------------------------- ----- --- -- - | | 2. THOMAS OUELLET FREDERICKS - Arduino/Wiring en Pd | | | | L'Arduino est un interface à transducteurs (senseurs) open source | | USB très facile à programmer et utiliser. SimpleMessageSystem est une | | librairie qui facilite la communication avec Pure Data. ascii4pd est | | une série d'abstractions pour faciliter la communication sérielle et | | ascii dans Pure Data. | | | | Arduino: http://www.arduino.cc | | SimpleMessageSystem et ascii4pd: http://tof.danslchamp.org/code.htm | `-o--------------------------------------------------- ----- --- -- - | [t a a] | | | .-o--------------------------------------------------- ----- --- -- - | | 3. ALEXANDRE QUESSY - Craslab | | | | Parlera de son expérience de cet été à Craslab (Le centre de | | ressources Art Sensitif) à Paris. | `-o--------------------------------------------------- ----- --- -- - | [t a a] | | | .-o--------------------------------------------------- ----- --- -- - | | 4. THOMAS OUELLET FREDERICKS - 8teen | | | | 8teen est un patch Pure Data de composition sonore (un sampler | | spécifiquement conçu pour le travail en temps réel sur des boucles | | de rythmes. C'est aussi une recherche sur l'élaboration d'une | | interface graphique qui peut être présentée au public et qui traduit | | les actions du performeur. | | | | 8teen peut présentement: | | - jouer 3 boucles différentes simultanément, | | - changer une des boucles en temps réel sans déranger la sortie | | audio, | | - ajuster le tempo de chaque boucle pour qu'elles soient | | synchronisées. | | - diviser chaque boucle en 8 marqueurs. Le performeur peut déclencher | | jusqu'à trois lectures simultanées de la même boucle à partir de | | n'importe quel marqueur, 8teen s'assure que toutes les lectures | | sont synchronisées. | | Image: http://tof.danslchamp.org/8teen.html | `-o--------------------------------------------------- ----- --- -- - | [t a a] | | | .-o--------------------------------------------------- ----- --- -- - | | 5. MATHIEU BOUCHARD - DesireData | | | | DesireData est une branche de PureData avec une interface- | | utilisateur complètement différente. Je ferai la démonstration du | | undo multiple, zoom, navigation par le clavier, class browser, | | copy+paste entre deux pd, ainsi que les deux éditeurs de | | configuration, ainsi que les 8 langues disponibles: anglais, | | français, allemand, norvégien, catalan, espagnol, portugais, ainsi | | qu'italien. | `-o--------------------------------------------------- ----- --- -- - | [the end] _ _ __ ___ _____ ________ _____________ _____________________ ... | Mathieu Bouchard - tél:+1.514.383.3801 - http://artengine.ca/matju | Freelance Digital Arts Engineer, Montréal QC Canada _______________________________________________ Pdmtl mailing list Pdmtl(a)artengine.ca http://ns.artengine.ca/mailman/listinfo/pdmtl

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Problem PmPD and PPC
by julien bellanger 12 Sep '06

12 Sep '06

hello, I have some Pb to use pmpd with a Ubuntu Dapper / PPC powerbook. PD : 0.39.2 Gem : ver: 0.90 ? I compile @ i have pmpd.pd_linux and that's all. when i open 00_pmpd.pd I have " stripdir ... couldn't create " message ? Any idea ? someone use it on the same plateform ? thks JB

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[urn] in Zexy vs. [urn] in maxlib, cyclone and Max/MSP
by Frank Barknecht 12 Sep '06

12 Sep '06

Hi, while porting RTC-lib, I've found, that the [urn] object in Zexy behaves slightly different from the one used in Max, Maxlib and Cyclone. The difference is small but can be nasty: [urn] in Max, maxlib and cyclone does not send out a random number if the urn is empty and the right outlet bangs. To clear the [urn] and start with a fresh supply, one has to manually send a "clear" message in Max. [urn] in zexy however does send the new nummber directly and also automatically clears the urn. There seems to be an undocumented "noauto" flag in zexy-urn to control this behaviour. This flag defaults to "automatic", but I would suggest to make it default to the "manual" mode as in the other three [urn]s use to avoid confusion. Nameclashes are bad only, if the behaviour you get differs. Ciao -- Frank Barknecht _ ______footils.org_ __goto10.org__

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how to open max patches via cyclone??
by Kevin McCoy 12 Sep '06

12 Sep '06

Hello list, I am sure this has come up before, but I have max patches that I cannot get to open under pd-extended .38 for OS X. I haven't tried it on Linux yet. None of them will open. I read that cyclone should be able to read both binaries and text files... can someone walk me through this, or is there a wiki or how-to somewhere? I searched the list and couldn't find anything. When I try to open one, renamed to pat, Pd does... nothing. The open dialog closes and nothing happens. Help appreciated! And cheers to Frank for his work on RTC-lib! I have the cyclone library enabled along with zexy and a couple others. Kevin

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joypad rumble
by Max Neupert 12 Sep '06

12 Sep '06

hi list, i've got an saitek impact joypad here and it works nicely with hcs [hid]. i was wondering if there is any way to get the human output device to work too (the “rumbling” vibration feedback motors function). thx, m.

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PDP and PiDiP: webcam video is pulsing
by padovani 12 Sep '06

12 Sep '06

Hi list... I'm running PD-0.39.2-test4-extended on Ubuntu 6.06 and I got my new Quickcam Pro 4000 to run. But, when I get the video, it pulses (in approx. 2300 msec intervals) a image with more bright than the other frames. I tried with different values for metro and it is the same. The webcam works without pulses in other programs like Ekiga... Could anyone give me any sugestion? (maybe a library problem??) Another question: there is a way to hide the Gnome-window frame of the video? _______________________________________________________ O Yahoo! estÃ¡ de cara nova. Venha conferir! http://br.yahoo.com

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Re: [PD] PDP and PiDiP: webcam video is pulsing
by bigswift＠cox.net 12 Sep '06

12 Sep '06

What version of PDP/pidip? That was fixed in 0.12.5 i am pretty sure. pp ---- padovani <josepadovani(a)yahoo.com.br> wrote: > Hi list... I'm running PD-0.39.2-test4-extended on Ubuntu 6.06 and I got > my new Quickcam Pro 4000 to run. > But, when I get the video, it pulses (in approx. 2300 msec intervals) a > image with more bright than the other frames. > I tried with different values for metro and it is the same. > The webcam works without pulses in other programs like Ekiga... Could > anyone give me any sugestion? (maybe a library problem??) > Another question: there is a way to hide the Gnome-window frame of the > video? > > > > _______________________________________________________ > O Yahoo! está de cara nova. Venha conferir! > http://br.yahoo.com > > > _______________________________________________ > PD-list(a)iem.at mailing list > UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list -- Patrick Pagano Digital Media Specialist University of Florida Digital Worlds Institute 352-294-2082

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Mastermind (data structure GUI too)
by Chuckk Hubbard 12 Sep '06

12 Sep '06

I want to set it so the numbers 1-8 select the colors too. The way I have the colors selected is so roundabout, though, that I actually couldn't figure out how to do it with the keyboard. Originally I had it so you would click the squares for your guess and they would change color, cycling through the pallette. This wore my wrist out pretty quickly. -Chuckk

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Re: [Pd] Pd to CV for a Moog (OT)
by Chuckk Hubbard 12 Sep '06

12 Sep '06

On 9/11/06, Damian Stewart <damian(a)frey.co.nz> wrote: > you know the way a Mac laptop power light kind of 'snores' when it's in > sleep mode? normally to make a light fade in and out like this you adjust > the voltage up and down. but since you only have two possible voltages on a > digital device - on (+5V or +12V or something) and off (0V) - you have to > create the inbetween voltages by flicking on for a portion of time then off > for a portion of time. to generate a +5V signal on a +5V digital output, > turn it on all the time. to generate a 0V signal, turn it off all the time. > to generate +2.5V, turn it on for 10 microseconds, then off for 10 > microseconds, repeatedly - and then low-pass filter the output (using a > capacitor and a resistor). to generate +1.25V, turn it on for 5 > microseconds, then off for 15 microseconds, repeatedly, and low-pass filter > the output - you get the idea, hopefully. > > this is how the snoring power light works - the light is actually flicking > on and off thousands of times a second but your eye acts as a low-pass > filter and mixes them all together into a continuous glow... and > theoretically you can do the same thing to get a control voltage for your Moog. This is awesome. I get it now. Though I'm not familiar with the sleep light on Mac laptops, unfortunately. Would it be any harder to use the DAC output, converting the voltage from that? It has a low-pass filter, albeit one I can't control. But then I don't have to look up all those serial port connection diagrams. I have to write music some time during all this! > > I don't know exactly how a Moog's PWM works, but from > > his description I thought I might just as well generate sine, ramp, > > square, triangle and pulse waves in Pd and run them through the > > filters and envelopes on the synth. And where's the fun in that? But > > if no other possibilities work out, I can use that. > > Since it's largely the filtering characteristics (and the hum, and the > noise) that make analog gear sound 'analog', that's not actually such a bad > idea. It's sounding better and better. I like the idea of being able to use the FM possibilities of the oscillators, though, and I actually think the guy teaching me the Moog might be offended if I suggest using digital synthesis, lol. Thanks. -Chuckk

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pd externals load/unload
by alberto.zin＠poste.it 11 Sep '06

11 Sep '06

Hi all, two small questions: Q1: suppose I'm working on an external: start pd, load it, control its behaviour, destroy it, change the code, recompile it, replace it *in the same session of PD*: is this supposed to crash pd? This happens to me, and the external debugging process means open/close pd million times (number varies according to coding skills ;-) Are there shortcuts to this? Q2: If I have two externals with the same name, one in the same directory of the opened patch (which contains an instantiation of it) and the other in the pd search path, which one is loaded? Thanks guys, Alberto Zin http://puredata.org/Members/AlbertoZ

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Pd-list September 2006