Pd-list December 2011

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80 participants
108 discussions

[PD-announce] The forty-fifth meeting of the PureData users group of Montréal
by Mathieu Bouchard 09 Dec '11

09 Dec '11

.----------. | pdmtl#45 | `-=--------´ | .-=-----------------------------------------------------------, | La quarante-cinquième rencontre du club d'utilisateurs de / | PureData de Montréal aura lieu le samedi 10 décembre 2011 ( | de 13h00 à 17h00 au FouLab. \ `-=-----------------------------------------------------------` | .-=-----------------------------------------------------------, | Le FouLab est situé au local 33B du / | 999, rue du Collège, dans l'arrondissement Sud-Ouest, ( | à 5 minutes du métro Place-Saint-Henri (ligne orange). \ `-=-----------------------------------------------------------` | .-=------------------, | Entrée gratuite ! ( `-=------------------` | | .-=-------------. | à l'horaire : | `-=-------------´ | .-=---------------. | 1. Packet Party | | par MaxD | `-=---------------´ / / Packet Party est une patch développée pour intervention publique. Packet Party sonifie le trafic de réseaux informatiques, pour sensibiliser le public à propos des réseaux qu'ils utilisent régulièrement. | .-=-------------------------=-. | 2. démos de patchs diverses | | par Mathieu BOUCHARD | `-=------------=------------=-´ / `-------[#remap_image] / Je présenterai : a) polar.pd : pixélisation en coordonnées polaires b) zède1.pd : inversion complexe des coordonnées de l'image c) koch_polygon*.pd : construction récursive de polygones d) gl-poly-demo-with-blend.pd : troupeau de triangles e) joyeux_noël.pd : joyeux noël ! (il s'agit d'une patch des exemples de GridFlow, une patch variante d'une patch d'aide, et trois patchs inédites) | .-=----------------------------------------------------. | 3. (Œuvre sans titre) | | par le collectif //termostat\\ : | | Stéphanie CASTONGUAY, Jenny ABOUAV, Romain BERGER | `-=----------------------------------------------------´ / / L'œuvre consiste à capter les ondes présentes dans un espace et de « matérialiser » sous la forme d'image en mouvement l'aspect invisible de ces flux permanents qui transitent dans les espaces publics. À savoir, capter le chemin et l'action que les gens parcourent/actionnent sur internet à travers leurs téléphones portables, leurs ordinateurs et de le matérialiser dans l'espace où ces informations transitent, ne font que passer. À travers ce projet, la question de la proximité entre l'espace public et l'espace privé est primordiale. | .-=-----------=------------=-----------=-. | 4. Cercle de patcheux et de patcheuses | `-=------------------------------------=-´ / `--[s $0-allô] / Pour que tout le monde réponde aux questions de tout le monde, au sujet du tricotage de patchs, du gossage d'abstractions, du macramé de DSP, de la broderie linéaire récursive, et cætera et cætera... ______________________________________________________________________ | Mathieu BOUCHARD ----- téléphone : +1.514.383.3801 ----- Montréal, QC _______________________________________________ Pdmtl mailing list Pdmtl(a)lists.artengine.ca http://lists.artengine.ca/cgi-bin/mailman/listinfo/pdmtl _______________________________________________ Pd-announce mailing list Pd-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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making/updating Pd translations
by Hans-Christoph Steiner 09 Dec '11

09 Dec '11

Hi all, I recently ran into transifex, its like a github for translations. So I just threw up all of the Pd files there, so if anyone wants to make new or improve translations, you can do it in transifex, or like before, just download Pd sources and use a .po file editor, like PO Editor. https://www.transifex.net/projects/p/puredata/ .hc ---------------------------------------------------------------------------- "Making boring techno music is really easy with modern tools, but with live coding, boring techno is much harder." - Chris McCormick

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integer (mis)calculator
by Joe Newlin 09 Dec '11

09 Dec '11

Can someone explain what's going on in the attached example? I'm getting 7.1 minus 7 equals .099. I need to split two-digit integers, so this result is giving me problems. Thanks, JN -- www.joenewlin.net www.twitter.com/joe_newlin

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Patching-Circle Graz, 14.12.2011
by Peter Venus 09 Dec '11

09 Dec '11

Dear All! on Wednesday, 14th of December, the next Patching-Circle Graz will be held. We invite everybody, who is interested in Puredata, Processing, Supercollider etc. to attend and to share ideas, thoughts and problems. For this Patching-Circle we invited Jogi Hofmueller to do a short presentation of his Python-program "OSC-satellite", a tool that calculates satelite data from two-line-elements provided through celestrak ( http://celestrak.com/NORAD/elements ) and outputs the data via OSC. This data then can be used to control sound and media installations. The program was developed within the mur.sat project, which will launch a nano-satellite dedicated to arts in 2012. ( http://sat.mur.at ). After the presentation, we will experiment with the program, work on own stuff, chat and have some cold drinks. The Patching-Circle will be at 14.12.2011, 19°° CC, ESC im Labor, 2nd floor Jakoministr 16 8010 Graz cheers, peter

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[spectrogram~] won't show anything
by Caio Barros 08 Dec '11

08 Dec '11

Hello, I noticed that the object [spectrogram~] won't show anything in the array in my pd-extended. I'm using ubuntu 11.10 with pd-extended installed from the apt repository http://apt.puredata.info/auto-build/2011-12-07/ which seems the only place where I can find a compiled package. In the system's official package "puredata" the object works fine. I opened [spectrogram~] and using the [print~] object I noticed that [sqrt~] outputs only zeros, and the multiplications above shows some non-zero results.

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CVs
by Josh Moore 07 Dec '11

07 Dec '11

I just got out of a long and heated argument with someone who claimed he was an EE and told me that digital synthesizers use CVs. I tried to explain to him that if they did, it would be ONLY a numerical conversion so he was wrong and he still insisted that digital synthesizers used CVs. Has anyone had this kind of experience?

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Gem and audio, multiprocessors, Mac
by Jean-Marie Adrien 07 Dec '11

07 Dec '11

Hi list, Is there a strategy to optimize GEM video processing and real time audio on a single Mac using pd~ : Audio in subprocess or in main process ? Any startup flags ? chmod +s stuff ? shm settings ? Run two instances of PD with messages between them ? Subprocess fifo size ? The idea would be to give a priority to sound versus video, if absolutely necessary. Situation : On a single Mac (pro or mini), Gem (pix_video & tracking, ordinary resolution and fps) and real time audio (10 channels, mainly reading from disk), dispatched on four processor cores via pd~. The sound is generated in the subprocess (big latency 512), the video in the main patch. pd-extended 42.5 osX 10.7 &10.6, gem 93, 92. Problem : Sound is distorted when Gem is rendering, and becomes immediatly perfect when stopping rendering (destroying the gem window). Processors seem ok (each core at 75%). Sticking with this problem for a couple of months, Looked around in archives but didn't find any clear element. Thanks JM

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install Pd on ubuntu without internet; video-playback codec windows?
by Johnny Mauser 07 Dec '11

07 Dec '11

Dear list! i am trying to install pd-extended 0.42.5 on ubuntu 10.04 and am a total beginner with any linux. I was so happy to manage to install ubuntu, but now the Package Installer asks for more and more dependencies. My machine is not allowed to connect to internet, and i go crazy copying all the dependencies via usb stick from this internet-pc to performance-pc! How to easy-install Pd? I am trying linux, 'cause my patch has problems playing multible videos on windows. I use foto-jpeg decoded videos with quicktime for window, because i found that quicktime reads the framenumber correct instead of direct show. live-cam input is quite stable, but windows freezes from time to time with playback of 5 videos. I have quite a fast machine and an ssd drive which should be able to do the task i thought. So: which video format works well with windows? how do i get pd-extended on linux working? please exuse my confusion, too much operating system problems today; too less Pd... joson

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Re: [PD] Gem and audio, multiprocessors, Mac
by Marco Donnarumma 07 Dec '11

07 Dec '11

Hi Jean, there was actually a discussion few days ago here, about the [pd~] and optimization topic. However, for audiovisual processes, apparently it's still more reliable to use two different instances of Pd. One proceses the sound and the other the video. The video Pd instance might gain some more cpu resources when launched with the flag -noaudio. Then you want to exchange data between patches on a local network on your machine using [netsend] and [netreceive]. AFAIK, the main feature of [pd~] is to keep synced processes happening in different threads. Thus, when one of the processes slows down, the others slow down too. Which, can be good for audio projects, but audio and video patches won't work really well due to this feature. cheers, Marco > Is there a strategy to optimize GEM video processing and real time > audio on a single Mac using pd~ : > > Audio in subprocess or in main process ? > Any startup flags ? chmod +s stuff ? shm settings ? > Run two instances of PD with messages between them ? > Subprocess fifo size ? > > -- Marco Donnarumma Independent New Media and Sonic Arts Practitioner, Performer, Teacher ACE, Sound Design MSc by Research (ongoing) The University of Edinburgh, UK ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Portfolio: http://marcodonnarumma.com Research: http://res.marcodonnarumma.com | http://www.thesaddj.com | http://www.flxer.net Director: http://www.liveperformersmeeting.net

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OOP practices in Pure Data
by abel.jerome＠free.fr 07 Dec '11

07 Dec '11

Hi all, All along years of practice, I've developped with Pd as well as object oriented languages. Some methods and designs from OOP (object oriented programming) structure my patches, because I think they are very useful to clear thoughts and share patches. It is sometimes difficult to understand patches from other people, and more difficult when it is a complete project. Therefore I think it's quite "good" to link Pd programming with OOP. In the same idea, I like those resources : http://puredata.info/docs/tutorials/TipsAndTricks http://puredata.info/Members/bbogart/pddp http://puredata.info/docs/style-guide http://www.earcatching.com/pdconv/pdconv.pdf Sharing practices is also very useful to help eachother and beginners people structure their code (and their thoughts). Jerome http://jeromeabel.net

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Pd-list December 2011