Pd-list March 2011

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139 participants
209 discussions

[PD-announce] Doctoral student (2 positions) in Aalto University School of Art and Design
by Koray Tahiroglu 03 Mar '11

03 Mar '11

This is related to my previous email. I just noticed this call for doctoral students. This is a paid position. Deadline is Tuesday 29 of March 2011. http://www.aalto.fi/en/current/jobs/teaching_and_research/tohtorikoulutetta… Key Qualifications: - The doctoral student must have a Master’s degree and possess a post-graduate study place in a University. - The research plan must be related to the research fields of the School of Art and Design. (here, the research group that I previously announced might be of interest to some of you - site is under construction - http://sopi.media.taik.fi ) - The research plan must include a schedule to take the doctoral degree. you can contact me directly if you have any questions about this call. Best, Koray ------------------------------------- M.Koray Tahiroğlu Media Lab, Aalto University, School of Art and Design http://sopi.media.taik.fi http://mlab.taik.fi/~korayt tel: +358 45 233 6272 _______________________________________________ Pd-announce mailing list Pd-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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pix_buffer_write not writing
by Pall Thayer 02 Mar '11

02 Mar '11

I'm trying to get pix_buffer_write to write pix_video to a buffer but it doesn't seem to be writing. Do I have to do something specific? Here's what I have. If I change the name of the pix_buffer_read buffer, the pd window spits out a stream of buffer not found errors, as one would expect. However, if I change the name of the pix_buffer_write buffer, nothing. So it looks to me like it's not doing anything at all. [pix_buffer video] [gemhead] | [pix_video] | [pix_buffer_write video] [gemhead] | [pix_buffer_read video] | [pix_texture] | [rectangle 4 3] -- ***************************** Pall Thayer artist http://www.this.is/pallit *****************************

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Re: [PD] How to capture sound & video from Pd/Gem
by Mitchell Turner 02 Mar '11

02 Mar '11

Markus, You may find some things that will help in the patches by Max Neupert. Though his patches keep the audio and video as separate files, the techniques work well. http://www.maxneupert.de/pd/ The files on Motion detection (17-documentation.pd in particular) and Audiovisual programming may help out. Hope this is helpful, Mitch On Mar 1, 2011, at 6:14 PM, pd-list-request(a)iem.at wrote: > Message: 1 > Date: Tue, 01 Mar 2011 22:29:32 +0100 > From: Markus Demmel <az(a)zankapfel.org> > Subject: [PD] How to capture sound & video from Pd/Gem > To: pd-list(a)iem.at > Message-ID: <4D6D653C.7000102(a)zankapfel.org> > Content-Type: text/plain; charset=ISO-8859-1 > > Hi List, > > does anybody know a good (working) way to capture audio and video from Pd/Gem > under linux? > > So far i tried using glc-capture, which gives good video results, but refuses to > record any sound at all. glc-capture should work with alsa, but it only outputs > error messages like this: snd_pcm_open (input): Device or resource busy or [ > 33.15s alsa_capture error ] initialization failed: Invalid argument ... > > markus

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Re: [PD] Music made with PD
by Eduardo Patricio 01 Mar '11

01 Mar '11

Thanks, Phil! I believe not. It's very simple. Hardware: six infrared distance sensors (to directly control several parameters), and two proximity sensors. Software: a simple granular synthesis implementation, a reverb and two delay modules (one for each output of the stereo) Basically you control directly some synthesis parameters, reverb and delay levels. There's a "score" system to make some pre-programed changes (it changes the samples used during the performance and some delay parameters) The proximity sensors turns on and off a second synthesis layer (a kind of automated buffered granular synthesis) which is created while you're playing. Also, you can control how quick the sensors respond to the gestures. GUI I guess that's all. Eduardo De: Phil Stone <pkstone(a)ucdavis.edu> Para: Eduardo Patricio <epatricio(a)yahoo.com> Cc: pd-list <pd-list(a)iem.at> Enviadas: Terça-feira, 1 de Março de 2011 13:43 Assunto: Re: [PD] Music made with PD Very nice! Have you discussed the Zin here before? If not, what is going on there? Phil Stone www.pkstonemusic.com On 3/1/11 8:15 AM, Eduardo Patricio wrote: >> Hello, list! > >> Two more videos: > >http://vimeo.com/20464262 - Wii stuff + Pd > >http://vimeo.com/20464964 - Zin (arduino based) + Pd > >> Cheers > >> Eduardo > > > >> _____________________________________ >Eduardo Patrício >http://www.eduardopatricio.com.br >+55 41 > 8434-0480 > >> > > >_______________________________________________ >Pd-list(a)iem.at mailing list >UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list

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passing a mat4 to a shader
by Matteo Sisti Sette 01 Mar '11

01 Mar '11

Hi, I see I can pass a 3- or 4- dimension vector to a glsl shader by delcaring a uniform variable of type vec3 or vec4 and sending [glsl_program] the vector as a list, for example, declaring in the shader: uniform vec4 mycolor; and sending [glsl_program] the message "mycolor 1 0 1 1". I tried the same with matrices (i.e. declaring uniform mat4 mymatrix and sending the message "mymatrix 1 1 1 1 ......") but it doesn't seem to work. I thought it would be a matter of finding out in which order to write the coefficients of the matrix, but whatever I send everything acts as if the matrix was always all-zero. Is it supposed to work? If so what may I be missing? I don't get any error message, neither when I link the program nor when I send the message with the matrix. It just acts like the matrix is always null. Thanks m.

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[OT] USB extender for PS3 Eye on Linux and PD
by Dario Pedrioli 01 Mar '11

01 Mar '11

Hi list, this is a bit OT but I trust in this list, so I ask here. I need an USB extender to plug a PS3 Eye webcam to my pc from 5/10 meters (or better more) Someone have hints or wonderful solutions? Note that I've used an analog cam with baluns and CAT5 cable with great success (25 meters with no problems - many thanks to David Kirkpatrick for his specs on the thread "Pd/GEM and camera for tracking" Sat, 7 Mar 2009 16:18:41) but for budget and framerate reasons I'm triyng with PS3 Eye and USB Ciao, Dario

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Music made with PD
by Eduardo Patricio 01 Mar '11

01 Mar '11

Hello, list! Two more videos: http://vimeo.com/20464262 - Wii stuff + Pd http://vimeo.com/20464964 - Zin (arduino based) + Pd Cheers Eduardo _____________________________________ Eduardo Patrício http://www.eduardopatricio.com.br +55 41 8434-0480

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[PD-announce] 3rd International Symposium on Ambisonics and Spherical Acoustics
by Erika Olsen 01 Mar '11

01 Mar '11

3rd International Symposium on Ambisonics and Spherical Acoustics June 2-3, 2011 Lexington, Kentucky, USA www.vis.uky.edu/ambisonics2011<http://www.vis.uky.edu/ambisonics2011> Dear Colleagues, Please note that the deadline for the submission of extended abstracts has been extended to March 9, 2011. Please find the original call for papers with the updated dates below. We would like to announce the 3rd International Symposium on Ambisonics and Spherical Acoustics, which will be organized by the Center for Visualization and Virtual Environments at the University of Kentucky. The Symposium will be held to provide an intensive exchange between industrial and academic researchers working in various research areas on spherical acoustics. The field of spatial sound reproduction is interdisciplinary by nature and closely related to a number of computer science and engineering areas such as acoustics, mathematics, signal processing, and perception. The symposium focuses on discussing the various problems and solutions concerning the capture, analysis, and re-synthesis of sound fields applying spherical acoustics; for example higher-order Ambisonics (HOA), and spherical microphone arrays. The symposium is going to be divided into oral presentations (keynotes and submissions), poster sessions, and will also feature demos and artistic performances. This symposium will benefit from a hemi-spherical loudspeaker array that will be installed in the Digital Amphitheater of the newly inaugurated Davis Marksbury Building. Original contributions are encouraged in, but not limited to, the following topics: * General considerations on spherical acoustics theory * Ambisonic for sound scene reproduction and virtual acoustic environments * Spherical microphone array systems and signal processing * Capture and analysis of radiation patterns * Spherical acoustic holography * Synthesis of directional and focused sound sources * Spherical loudspeaker array systems and signal processing * Theoretical considerations on comparative subjective and objective studies * Standardization, exchange, implementation and hardware issues Submission ========== Submissions will be judged based on extended abstracts (1000 words). Procedures to submit papers, posters, and demo sessions are detailed at the symposium website http://www.vis.uky.edu/ambisonics2011/. Final papers must be camera-ready conforming to the format specified on the submission website. Important dates =============== * Extended abstract (1000 words) submission due: March 9, 2011 * Papers, Notification of acceptance: March 28, 2011 * Camera-ready copy (full paper): April 30, 2011 * Registration opens: April 30, 2011 * Submission of Audio Material for Testing: May 13, 2011 * Symposium Dates: June 2-3, 2011 If you have any questions, please contact office(a)ambisonics-symposium.org<mailto:office@ambisonics-symposium.org> Symposium Chairs ================ General Co-Chairs Jens Hannemann (VisCenter) Kevin Donohue (VisCenter) Administrative Chair Erika Olsen (VisCenter) _______________________________________________ Pd-announce mailing list Pd-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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Re: [PD] unexpected behaviour in [route]
by rene beekman 01 Mar '11

01 Mar '11

Mybad, seems it's yet another leftover from my max-days where this was perfectly possible :) The route-help talks about the first element of a MESSAGE it receives, not the type of the first ARGUMENT that is is given upon creation - which seems to make all the difference. See my example patch in the original message. Jonathan's explanation (below) seems to explain why that would be the case. Thanks! > Date: Sun, 27 Feb 2011 15:43:53 -0800 (PST) > From: Jonathan Wilkes <jancsika(a)yahoo.com> > Subject: Re: [PD] unexpected behaviour in [route] > > In your quote of Miller's help patch you left off half the sentence.? Here's the > full quote: > > "Route checks the first element of a message against each of > its arguments, which may be numbers or symbols (but not a > mixture of the two.)"* > > The part before the comma is wrong-- that's not how [route] works.? The reality is: > 1) If the first arg is a symbol atom, then [route] is put in "selector" mode and checks > the selector against its arguments.? Subsequent args are assumed to be symbol atoms > (and if you try to use a float as a subsequent arg it will be treated as an empty symbol). > 2) If the first arg is a float, then [route] is put in "list" mode and checks the first element > of an incoming list against its arguments.? Subsequent args are assumed to be floats > (and if you try to use a symbol it will be treated as the value "0"). > > So what you quoted is the answer, as long as the questioner magically realizes to > ignore everything before the comma. > > * The parenthesis should be inside the period. > > -Jonathan >

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Pd-list March 2011