Pd-list April 2012

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98 participants
109 discussions

GEM: storing pix_background settings?
by Iain Mott 05 Apr '12

05 Apr '12

Hello, I'm working on an installation that will have stable lighting - and I'll be using pix_background in combination with pix_video to capture and isolate the image of individual participants and mix the participant's image (now with a black background) with other video sources. My question is, can the calibration of pix_background (achieved by sending it a "reset" message while capturing the plain background without participant) be saved to file and later reloaded - or will I need to perform the "reset" calibration each time Pd is started? Can this be done simply or will I need to delve into the C code? Has anyone tried this? Cheers, Iain

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GEM UI
by Martin Eckart 03 Apr '12

03 Apr '12

Hi all, I need help conceptualizing the best solution to my problem. I've created a Gem application in which I use the 'view' message to pan the camera around the space. Now I want to create a user interface that is fixed to the frame of the screen. I've succeeded already but my current solution is clunky (I created an 'offset' abstraction that calculates the proper offset for each UI element whenever the camera is panned) and is conceptually convoluted. I think it's more complicated than it needs to be. Is there a way to define a frame or object group for Gem objects? Something where I could just use a single transformXYZ for the group offset from the camera position and then work with each sub-object as if it were fixed to the screen? How might you fix UI elements to screen borders while moving the camera through the application space? Thanks, -martin

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Melbourne Patching Circle is happening!!!!
by Richie Cyngler 03 Apr '12

03 Apr '12

There is a new electronic arts community meet-up, and you’re invited to the first one ever! Media Lab Melbourne is proud to host the Melbourne Patching Circle. This is a regular meeting for musicians, artists, and those who are ‘just plain curious’ to have a place to share/teach/learn about current projects of varying sources. People from all backgrounds and levels of experience are welcome. Everyone is encouraged to bring whatever current media projects you may be working on, or just simply show up and see what the Melbourne community is getting up to. Video editors, Musicians, Graphic designers, circuit builders, general hackers, or just people that are curious are all equally encouraged. There will be an emphasis on Open Source tools for artists and musicians, and creative programming environments such as Pure Data, Max/MSP, Processing, OpenFrameworks, VVVV, and so on. Electronic hardware, sensors and micro-controllers will also feature. This is an open community and there are really no restrictions on what content you bring as long as it is some kind of electronic art. It will be a good idea to bring your laptop, and invite your friends along. Patching Circle meet-ups are going to be weekly, sign up to either the Media Lab Melbourne email for event info, or join the Melbourne Patching Circle Community list at patchmelbourne(a)googlegroups.com. Here’s the facebook event: https://www.facebook.com/events/374040299285069/ Event details: Thursday April 5th 7pm – 11pm 136A Cromwell Street, Collingwood If anyone on this list is in please Melbourne come along! -- Richie Cyngler www.glitchpop.com

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[PD-announce] Dance, Music, Laptop Orchestra (Ⓓ☊∈∀)
by Eldad Tsabary 03 Apr '12

03 Apr '12

Ⓓ☊∈∀ Dance, Music, Laptop Orchestra This Wednesday 4/4 at 5PM, Concordia Electroacoustics and Dance students collaborate in an afternoon dance show featuring a series of one-minute long dance/EA pieces by advanced students and a performance of Concordia Laptop Orchestra (CLOrk) with dance. The Orchestra performance will feature group-beat-making through CLOrk's proprietary OSC/MIDI WLAN-Sync (programmed in PD). The audience is invited to walk inside the performance area, among the dancers and live musicians, during the show. Snacks will be served. Admission is free Wednesday April 4th 2012 @ 5PM Address: Black Box studio (265), 7th floor, John Molson (MB) Building Concordia University 1455 Guy Street (corner de Maisonneuve W.) Montreal QC Canada Guy-Concordia Metro The show is organized by Concordia's Contemporary Dance and Music departments Including pieces by: Chris Gorman, Jared Jukes, James Piggott, Greg Marino, Patrick McDowell, Ryan White, Ryan McNabb, Elena Stoodly, Bobby Lehoux, Michael Baker, Kevin KcDonald, Karim Lakhdar, Daniel Kaga, Frankie Fiore, Marguerite Luu, Suki Benning, David Fiorentino, Camilo Gidi, and Charles Bale Dancers: Sophia Wright, Auja Ragnarsdottir, Pascale Yensen, Greg Selinger, Levana Prud'homme, Emilia Gallo, Maxine Segalowitz, Olivia Filippo, Aditi Dixit, Melinda Ellerton, Laura Battcock, Breanna Harvey, Michaela Gerussi, Vero Dalo, Veronique Ranger, Tanya Cyr, Emmalie Ruest Concordia Laptop Orchestra: Michael Baker, Jeffrey Clifford, Pat De Luca, Frankie Fiore, Sophie Genest, Camilo Gidi, Kevin Jamey, Karim Lakhdar, Emily Laliberte, Fernando Leppe, Kevin McDonald, Kris McDougall, Ralph Nakhle, Andy Poblete, Elena Stoodley, Stephen Trepanier, Justin Trubiano, and Matt Wood Organizers: Prof. Silvy Panet-Raymond (Dance) Prof. Eldad Tsabary (Electroacoustics) _______________________________________________ Pd-announce mailing list Pd-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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pddp keywords
by Jonathan Wilkes 03 Apr '12

03 Apr '12

Hello, I've gone through a substantial portion of externals and added pd META subpatches to them so that every object can be searched by author, description, license, keywords, aliases, xlets and their methods, and help patch author. In addition my search plugin can also do full-text searches. However, keyword searches based on the pd META data are useful when a) the help patch doesn't adequately describe what the object does-- which is the case for a lot of the external documentation, and b) the help patch makes reference to concepts related to what the user is searching for, but the object itself doesn't perform the desired function. I've gone through and tagged various help patches with keywords (which are all listed on the home page of the search plugin), but I'm sure there are things I've missed. More importantly, I've added some tags to get the ball rolling and now would like to clarify the tags to get more meaningful search results for the user. One example is the keyword "bandlimited": the definition currently is, "object that describes itself as bandlimited"! Thus, I only tagged those objects which called themselves band limited in their description, and this obviously has left out many objects. So what is a decent, short definition for bandlimited? And what external objects (or internal objects, if there are any) should be tagged with that keyword? In case you want to help out on any of the other keywords, the search plugin is here: http://puredata.info/Members/jancsika/searchandbrowseplugin/view?searchterm… -Jonathan

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hslider/vslider - mismatch of input and output
by Iain Mott 02 Apr '12

02 Apr '12

Hi, I've noticed something strange with hslider and vslider. I you give them a large range, the inputs and outputs aren't always equal or at least they are out by a factor greater than 1. For example with the range 0 - 55000, if you connect a number object to hslider's input and enter 6034, the output reads 6032.68. Couldn't find this reported elsewhere - though perhaps i didn't search hard enough. This result is on linux. Cheers, i

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[PD-announce] BEAM Night - Tanaka, Donnarumma, Zamborlin, Bugs, Leafcutter LDN 4th April
by Marco Donnarumma 02 Apr '12

02 Apr '12

BEAM night @ Cafe OTO Wednesday 4th of April at 20:00 Tickets at £5 in advance (otherwise £7 on the door). http://www.wegottickets.com/event/157574 BEAM Festival presents BEAM NIGHT – a special one-off taster event held at Cafe OTO. Following BEAM’s mission, the acts of this night were all featured at BEAM 2011 and all use unusual and/or homemade interfaces to perform. http://www.beamfestival.com/beam-night/ - Atau Tanaka & Adam Parkinson play iPhones as sensitive, handheld controllers. - Bruno Zamborlin performs Cafe OTO’s wall – possibly for the first time?! With his invention, Mogees, which read gestural language on any surface. - Marco Donnarumma’s Music for Flesh is a visceral sensor performance using his instrument system Xth sense, which has just been named “the world’s most innovative new musical instrument” and awarded First Prize at the Guthman Musical Instrument Competiton in Atlanta. - Tom Bugs (maker of Bugbrand synth products) appears in a rare performance using his Modular Synths and also sets up a mini-installation for the night. - The beguilingly creative Leafcutter John conjures up soundscapes with his new explorations in light and sound. hope to see some of you there, best wishes, -- Marco Donnarumma New Media + Sonic Arts Practitioner, Performer, Teacher, Director. 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 _______________________________________________ Pd-announce mailing list Pd-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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ANNOUNCE: ANTSynth - Pure Data prototype premiere
by Lorenzo Sutton 01 Apr '12

01 Apr '12

Dear Pd community, The international research team of which I am a humble member (PPMR - ParaPonera Music Research) is proud to release today the first working prototype of ANTSynth (see below) developed as Pure Data patch. Attached is a standalone prototype patch which should work directly in Pd (make sure DSP is working and use the main toggle to start). Testing and (constructive) critique are very welcome (please consider this is very preliminary!!) Regards, Lorenzo. A little background on Antsynth (more details and links in the patch and future posts): ANTSynth is a cutting edge, innovative synthesis method. It stands for Ant Stimulation Turmoil Synthesis. Inspired by Natural Science, Biology and pioneering Engineer studies it creates unique additive-aggregate mesh-able (over)tones with complete formations of broad spectra which in turn the modern composer can imply (we think) in any composition. ANT synthesis is inspired by the Natural Sciences as it translates into sound some of the most interesting patterns of ants' complex social behaviour as outlined by Ted R. Schultz in his paper Â“In search of ant ancestorsÂ”. ANTSynth is created by an international team of biologists, engineers, sound designers and programmers (PPMR) and will be released as Open Source in the hope that it will be useful for the future generations of researchers, sound designers, artist, biologists, composers. Many questions and issues about the feasibility and optimisation of ANTSynth remain but preliminary results seem to be promising. Minimal background bibliography: D. Moody , A Field Study of the Ant Trail Phenomenon , Division of Natural Science , The University of Findlay , 2000 John M. Chowning, The Synthesis of Complex Audio Spectra by Means of Frequency Modulation, Journal of the Audio Engineering Society, 1973 Julius O. Smith III. "Additive Synthesis (Early Sinusoidal Modeling)". Retrieved 2012-01-14. "The term "additive synthesis" refers to sound being formed by adding together many sinusoidal components" - https://ccrma.stanford.edu/~jos/sasp/Additive_Synthesis_Early_Sinusoidal.ht… Ettershank, G. 1965. A new modular-design artificial ant nest. Turtox News, 43:42Â–43. Holldobler, B., M. Moglich, and U. Maschwitz. 1974. Communication by tandem running in the ant Camponotus sericeus. Journal of Comparative Physiology, 90:105Â–127. Horn, D. J. 1976. Biology of insects. W. B. Saunders, Philadelphia. [Pages 3, 16Â–31, 207Â–208, 238Â–240] Jacobson, M. 1972. Insect sex pheromones. Academic Press, New York. [Pages 1Â–2, 79Â–100, and 101Â–120] Markin, G. P. 1968. Handling techniques for large quantities of ants. Journal of Economic Entomology, 61:1744Â–1745. Moody, D. L. 1981. Ant trails. The American Biology Teacher, 43:452Â–453. Wilson, E. O. 1963. Pheromones. Scientific American, 208:100Â–114.

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"nop" as patch chord segmentation - gui version?
by Mirko Maier 01 Apr '12

01 Apr '12

hi list, as some of you might use it this way, with "nop" / "nop~" (no operation) you can actually have segmented patch chords in pd. i wonder if someone could write a gui version (a small point e.g.) which is smaller than the ordinary object box? i can't but i think it would be a good thing. best mirko -- NEU: FreePhone 3-fach-Flat mit kostenlosem Smartphone! Jetzt informieren: http://mobile.1und1.de/?ac=OM.PW.PW003K20328T7073a

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Pd-list April 2012