Pd-list April 2011

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111 participants
160 discussions

Re: [PD] Graph a circle arc in an array?
by Patrice Colet 09 Apr '11

09 Apr '11

hi, the attached patch attempt to reproduce the following formula taken from 'circle' in wikipedia http://upload.wikimedia.org/math/b/f/f/bffc9ed6838d804b4da5198cb3a86be4.png ----- "Tyler Leavitt" <thecryoflove(a)gmail.com> a écrit : > Hello all, > > > I am trying to graph a section of a circle into an array. I have been > trying to wrap my head around [sin] and [cos] but none of my > configurations get results. If you had a circle with radius 100 with a > center at (0, 0) I'm trying to get the upper right quadrant (positive > x and positive y). The start point being (100,0) and the end point > being (0,100). > > > Any ideas on moving forward? > > > Tyler > _______________________________________________ > Pd-list(a)iem.at mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list -- Patrice Colet

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Making a Realtime Convolution External
by Seth Nickell 09 Apr '11

09 Apr '11

I'm planning to release our realtime convolution engine (extracted from http://meatscience.net/pages/convolution-reverb) as a GPLed Pd external. It currently accepts 4-channel ('true stereo'), two channel or mono impulse responses, with stereo or mono output. Performance is excellent if you have SSE3 and has a fallback in case you don't, and it aims for accuracy (basically that means multi-stage scaling to keep floats within healthy sizes). 1) I'd love to swipe the convolve~ external name, currently installed by mjlib as part of pd-extended. convolve~ from mjlib appears to be a copy of pin~ ? so I think it could be taken? Maybe I mis-read the code. I've cc'ed mark who can probably clarify. 2) Anyone have requests for features/api? Its currently simplistic: - takes a "read FILENAME" message, loads the file, does a test convolution against pink noise to normalize the gain to something sane - caches the last N impulse responses, as the test convolution takes a little time - allows setting the cache size with a "cachesize N" message - disable normalization with "normalize 0" or "normalize 1" Features I'm considering (let me know if they sound useful): - load from an array instead of from disk (no gain normalization?) - It wouldn't be hard to enable MxN convolution if that floats somebody's boat. 3) I can compile/test on Mac & Linux, anyone up for helping me with Windows? 4) Would this be of interest for Pd-extended? 5) I'd love to build a granular convolution engine.... takes two real-time signals, and extracts grains from one to convolve against the other. Anyone have ideas about this? thanks all, -Seth

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Re: [PD] What version of GEM should I use with pd 0.43-0 vanilla
by patko 09 Apr '11

09 Apr '11

----- "Billy Stiltner" <billy.stiltner(a)gmail.com> a écrit : > Thanks or the info. > Yeah I couldn't find msvcr71.dll anywhere till I looked in max/msp. I > also could not figure out why that pd 0.42.5 gem worked without it > before I installed pd 0.43. Everything seems to be working great > now. > Maybe you have uninstalled pd-extended 0.42.5 before, then it has uninstalled gem and dll's it needs, and maybe the pd-extended 0.43 install script omit to put this dll? > I do try to keep my patches working using only vanilla except for > ~moog and Gem. > I would like to be able to do a moog abstraction with vanilla > filtering objects. I just recently listened to some of the iem vcf > filters. They sound pretty good too. yes they do, did you try ggee filters? they are the best ones I've heard on pd, maybe because they use [biquad~]. you know when you add an external path it will be available from all pd versions because it's litterally a full path name that is added by the new tcl interface, and because vanilla and extended shares the same config file. that's why I use to start patches made for vanilla with a .bat script, then I can set exactly what I need in pd for my application. > > The problem with using externals with cross platform applications is > if you don't supply the library on all 3 platforms then there may be > some people that cant use your patch. > That's why I think that pd-extended should add only externals available on all 3 platforms. It's not really the job of patch developpers to provide cross platform externals and libraries but the job of the external developpers. > On 4/7/11, patko <colet.patrice(a)free.fr> wrote: > > > > pd binary needs msvcr71.dll to load gem certainly because it has > been > > compiled with visual studio, > > it's funny because when it was about using cygwin to compile things, > we > > stopped because we had to add cygwin-1.dll... > > > > anyway just copy and paste msvcr71.dll to your vanilla bin dir and > it should > > be able to load gem dll unless it mlisses other dll's, we never know > :o) > > or put this dll to your windows/system32 folder, to share it with > both > > versions, but personaly I don't like to put things in this folder, > because > > it sometimes create problems in other applications. > > > > I also don't use libdir, I really find it complicated, conflictual, > and > > useless, you just need to put the external folder name before > external name > > like this: > > > > > > [flatspace/prepend] or [cyclone/prepend] or [cxc/cxc_prepend]or > > [iemlib/iem_prepend] > > > > that's why I also never use abstractions that use externals without > > namespace, or that use externals at all, unless the abstraction is > packaged > > with the external itself, like in gridflow for example, or unless > the > > external is in extra folder. > > > > ----- "Billy Stiltner" <billy.stiltner(a)gmail.com> a écrit : > > > >> Hey > >> When I only try to load libdir I get > >> I do get an error at start up saying libdir: can't load library. > >> > >> When I try to load Gem I get a dialog about missing msvcr71.dll > >> then > >> > >> libdir: can't load library > >> C:\\audio\\pd-0.43-0\\pd\\extra\\Gem\\Gem.dll: couldn't load > >> Gem: can't load library > >> > >> The version of gem I'm using is the one that comes with pd 0.42.5 > >> extended. > >> > >> I just copied the directory to the vanilla ext directory. > >> > >> A strange thing is now when I run pd vanilla 0.42.5 I get the same > >> error. > >> Maybe I should use the Gem that is in the 0.42.5 vanilla ext > >> directory? > >> > >> _______________________________________________ > >> Pd-list(a)iem.at mailing list > >> UNSUBSCRIBE and account-management -> > >> http://lists.puredata.info/listinfo/pd-list > > > > -- > > Patrice Colet > > -- Patrice Colet

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[PD-announce] new Pd music release on GOSUB10
by Chun Lee 09 Apr '11

09 Apr '11

Dear all: Its been a long time since I last wrote on the list, and I am happy to use this opportunity to annouce the new music release on GOSUB10 by 0xA. More details below. Release link: http://gosub10.org/GOSUB10-004.html Compute audio and enjoy:) Chun === GOSUB10-004 - expr~ === expr~ from 0xA is GOSUB10's fourth release. 0xA is a band made not out of people, but objects and patches. Snippets of codes that bleep and blink are added and modified in the online repository, where it all began. As the repository grows, 0xA evolves with it. Aymeric Mansoux, Chun Lee and Olivier Laruelle are the current active contributors. They have performed 0xA across Europe, North America and Asia in galleries, clubs and festivals. expr~ is the first music release of 0xA, consists of retro sounding tracks made almost entirely with the [expr~] object in Pure Data. No tweaking of number boxes and sliders, no clever generative algorithms, just switch the audio on and listen. The source code for this release (implemented in Pure-data) is free software distributable under the terms of the GNU General Public License (version 3 or greater). For repository, see: http://gitorious.org/0xa Copyleft: This is a free work, you can copy, distribute, and modify it under the terms of the Free Art License. Released on 3rd April 2011. == TRACKLISTING == 01 0xA - Winter_Solstice 02 0xA - 0903-4 03 0xA - Nandsynth 04 0xA - Moving_Souf 05 0xA - Cafe_Kuroshio 06 0xA - Family_Mart == WHATIS GOSUB10 == Dedicated to innovative music and audio/visuals, the GOSUB10 label will feature an eclectic group of musicians drawn together by their shared use of Free/Libre/Open Source Software (FLOSS). Freely distributed by stream, download and special DVD releases, and made available through an open license, GOSUB10 is run by the GOTO10 collective – an international group of artists, musicians and programmers, dedicated to FLOSS and digital arts. Brought to life in a intensive four day work sprint but years in the making, the GOSUB10 netlabel is a natural extension of GOTO10's activities supporting and promoting digital art alongside FLOSS tools through workshops, festivals, exhibitions, writing, and more. == URL == http://gosub10.org :* readme (END) _______________________________________________ Pd-announce mailing list Pd-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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sample stretcher?
by João Pais 09 Apr '11

09 Apr '11

Hi, I am looking for an object (or patch) that can stretch samples (rate of < or > than 1), like e.g. elasticx~ for max. I'm already looking around, but thought if I ask here for sugestions, people who know more than me can give a better example. Does anyone have a good sugestion? Thanks, JoÃ£o Pais

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developing pd-gem externals
by Juliana Vizzotto 08 Apr '11

08 Apr '11

Dear all, My name is Juliana Kaizer Vizzotto, I'm an assistant professor at computer science lab at Federal University of Santa Maria/Brazil. I have some students working with pure data. We are trying to develop some externals to work with fractals generation in pure data. We are using opengl for the images and we would like to develop a new gem object. However we don't have examples of how to create new gem objects, like cube, for instance. We download the svn development sources... Please, it would be great to have the source of cube, for instance, or any other tip. It would be great if you could help us. Thank you very much! Sincerelly, Juliana Kaizer Vizzotto. * *

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[PD-announce] Live Media Concert I C::ntr::l Nature at Screenplay, plus artist talk, Berlin
by Marco Donnarumma 08 Apr '11

08 Apr '11

(sorry for x-post) I C::ntr::l Nature v3.0 Audiovisual concert for augmented bass guitar, Xth Sense biosensing technology and butterfly by Marco Donnarumma. http://marcodonnarumma.com/works/i-cntrl-nature/ Saturday 9th April h. 19.00 Panoramasaal, .CHB, Berlin http://chb.screenplaynights.com/en/av-night/programm/ Panel discussions, performances and installations by Mia Makela, Pierce Warnecke, Yroyto, Olga Mink, Abstract Birds, Servando Barreiro among the others. SCREENPLAY represents contemporary audiovisual art with special focus on generative or cinematographic performance as well as performance involving live-camera-feedback. SCREENPLAY shows an eclectic selection of artists who explore aestetic principles on the frontiers of new technologies, interactive story-telling and the interplay of audio and video. ~~ Artist Talk Saturday 9th April h 20.30 NK, Berlin http://www.nkprojekt.de/artist-presentation-by-marco-donnarumma/ Donnarumma will present some of his works, all deploying self-designed, Pure Data-based software, eventually focusing on the ongoing research project for biophysical live media 'Xth Sense'. http://res.marcodonnarumma.com/projects/xth-sense/ Best wishes, -- Marco Donnarumma Independent New Media and Sonic Arts Professional, Performer, Instructor ACE, Sound Design MSc by Research (ongoing) The University of Edinburgh, UK ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Portfolio: http://marcodonnarumma.com Lab: http://www.thesaddj.com | http://cntrl.sourceforge.net | http://www.flxer.net Event: http://www.liveperformersmeeting.net _______________________________________________ Pd-announce mailing list Pd-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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[PD-announce] workshop: Pd as your embeddable audio engine
by Hans-Christoph Steiner 08 Apr '11

08 Apr '11

http://www.nycresistor.com/2011/04/07/class-pd-as-your-embeddable-audio-eng… "Pd as your embedded audio engine" will teach all about embedding libpd as the sound engine for your app, whether its iPhone, Android, Java, OpenFrameworks, Processing, etc. This workshop provides a broad spectrum of different ways of connecting Pd to other things. Having hardware isn't a requirement either. The workshop will cover ways of interfacing with Pd from computer to computer. Bring your laptop and devices that you want to install libpd on (Android, iPhone, etc.) HTML and/or programming knowledge will certainly help. The aim of this workshop is to give a broad spectrum of different ways to interface to Pd. So it will be dipping very slightly into Python, C, Java, Javascript, but this is usually "glue code" and all of the code will be fully provided. You do not need to be proficient in these languages at all, the workshop will also cover methods that also just use Pd with no code at all. Here is an outline of topics: * Introduction * History of Pd as an engine * Ways to interface with a Pd process * Midi & OSC * FUDI * stdout * Python + sockets * pdsend/pdreceive * Parsing patches in three languages * libpd on Android and iOS * PdWebKitDroid * RjDj and ScenePlayer * WebPd Purchase a ticket here: http://www.eventbrite.com/event/1491957485 Workshop: Pd as your embedded audio engine Taught by: Chris McCormick, http://mccormick.cx/chrism When: Saturday, April 23, 2011 from 1:00 PM - 5:00 PM (EDT) Where: NYCResistor, 87 3rd Ave, Brooklyn, http://nycresistor.com Register now! http://www.eventbrite.com/event/1491957485 _______________________________________________ Pd-announce mailing list Pd-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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creating an engaging interactive art in public space
by Adityo Pratomo 07 Apr '11

07 Apr '11

hi there everyone Just a normative non-technical question here. I was wondering how would you guys create an engaging interactive art piece for a public space? I was just doing a casual internet browsing the other day, looking at various interactive art in public space, then suddenly that question popped up. I think that art in public space is very much different with one on gallery or museum, because people won't have that mind set of actually having an interaction with an art piece. If so then, what are your strategies to create one? Are you assuming that people or passer-by will automatically react to that interactive art? Or is there anything else? Thank you guys, have a great day :D Cheers, Adityo -- www.adityo.net

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[PD-announce] Forty-first meeting of the PureData Users Group of Montréal
by Mathieu Bouchard 07 Apr '11

07 Apr '11

---------- Forwarded message ---------- Date: Thu, 7 Apr 2011 10:46:43 -0400 (EDT) From: Mathieu Bouchard <matju(a)artengine.ca> To: pdmtl(a)artengine.ca Subject: [Pdmtl] pdmtl#41 (annonce) .----------. | pdmtl#41 | `-=--------´ | .-=-----------------------------------------------------------. | La quarante-et-unième rencontre du club d'utilisateurs de / | PureData de Montréal aura lieu le samedi 9 avril 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. deux présentations par Peter PLESSAS | `-=----------------------------------------´ a) Un grand jukebox : La «Demosuite» de la salle de concert «Mumuth» à Graz. http://www.kug.ac.at/en/studies-further-education/studies/infrastructure/th… b) Un tsunami sur le piano : Le transfert d'un séisme à la partition de l'oeuvre "Kloing!" de Olga Neuwirth. Peter Plessas est un chercheur et musicien détenant une MA en ingénierie sonore de l'Université de Musique et Technologie de Graz, Autriche. Il est vaguement affilié à l'Institut de Musique Électronique et d'Acoustique de Graz (IEM), et a été un chercheur invité à UC-Berkeley, travaillant sur la capture audio spatialisée avec des ensembles de microphones. Un créateur avide et un performeur de musique avec électronique live, Peter a collaboré avec des compositeurs tels que Peter Ablinger, Alvin Lucier et Olga Neuwirth ainsi qu'avec les ensembles Musikfabrik et Klangforum Wien parmi beaucoup d'autres. Il a performé à l'English National Opera, Amsterdam Muziekgebouw et le Cologne Philharmonic. Pour plus d'informations voir : http://plessas.mur.at Peter Plessas is a researcher and musician holding a MA in sound engineering from the University of Music and the University of Technology, Graz Austria. He is loosely afiliated with the Graz Institute of Electronic Music and Acoustics - IEM and has been a visiting scholar to UC Berkeley, working on spatial audio capture with microphone arrays. An avid creator and performer of music with Live-Electronics, Peter has collaborated with composers such as Peter Ablinger, Alvin Lucier and Olga Neuwirth as well as with ensembles Musikfabrik and Klangforum Wien amongst many others. He has performed at the English National Opera, Amsterdam Muziekgebouw and the Cologne Philharmonic. For more information see: http://plessas.mur.at .-=-----------------=-------------------=-----------------=-. | 2. table ronde sur le FlossManual de PureData en français | | proposée par Alexandre CASTONGUAY | `-=---------------------------------------------------------´ Une préparation d'une session de travail sur le manuel FLOSS de PureData en français. Je voudrais que nous regardions comment poursuivre le travail sur le livre de PureData qui est le résultat du Book Sprint qui a eu lieu à mains d'oeuvres en février dernier. J'aimerais d'abord écouter Alexandre Quessy sur son expérience et déterminer comment nous pouvons bonifier le manuel. * Pour bien cadrer la discussion, les intéressés devraient consulter la version en ligne -> http://fr.flossmanuals.net/Puredata/Introduction * Préparez vos suggestions sur les chapitres ou informations manquantes. * Proposition d'une fin de semaine de travail en avril ou mai. .-=-------------=---------------=-------------=-. | 3. système de documentation auto-modifiant | | présenté par Mathieu BOUCHARD | `-=---------------------------------------------´ Les modèles (templates) existants de PDDP demandent des efforts supplémentaires pour s'y conformer : dans ceux-ci, il y a beaucoup d'alignement d'objets à faire soi-même, et beaucoup de temps à passer à écrire des grandeurs d'objets [cnv] dans des dialogues de propriétés. Ce sont autant d'excuses pour ne pas suivre ces modèles, en se disant que si on a le temps de documenter 10 classes d'objets avec PDDP, on peut à la place documenter 15 classes sans PDDP. Je vais montrer comment on peut à la fois suivre un modèle attrayant et documenter en le même temps probablement documenter une vingtaine de classes, le modèle servant d'accélérateur et non de ralentisseur. En particulier, je montrerai comment : * utiliser des abstractions peut séparer le contenu, sa forme et sa présentation ; * accélérer la création de ces abstractions et des commentaires ; * des contraintes sur la structure du contenu (la forme) peuvent être encodées de telle sorte à ce que des objets soient créés automatiquement ; * des contraintes sur la présentation du contenu peuvent être encodées dans les abstractions de sorte à ce qu'on n'ait pas à déplacer les objets soi-même ; * on peut automatiser les captures d'écran pour rendre les patchs d'aide facilement disponibles sur le web. Je parlerai aussi des améliorations possibles à ce système. (Cette présentation sera bien entendu beaucoup plus détaillée que les autres fois où j'en ai parlé à pdmtl) .-=-------------=---------------=-------------=-. | 4. table ronde pour le logiciel libre au CALQ | | proposée par Alexandre CASTONGUAY | `-=---------------------------------------------´ Une discussion sur comment faire valoir les outils libres (et aider à leur développement) auprès du CALQ. Nous pouvons faire le point sur les échanges qui ont eu lieu sur cette liste et sur la lettre que nous voulons co-signer. Je vais prendre part à des sessions de consultation du CALQ sur le sujet donc je voudrais être un relais efficace de nos points de vue. _______________________________________________________________________ | Mathieu Bouchard ---- tél: +1.514.383.3801 ---- Villeray, Montréal, QC _______________________________________________ Pd-announce mailing list Pd-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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Pd-list April 2011