Pd-list June 2010

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144 participants
304 discussions

[PD-announce] Sonic Interaction Design training summer school in August 2010, Helsinki
by Koray Tahiroglu 15 Jun '10

15 Jun '10

We are in the last week of accepting participants to the COST-SID Product Sound Design Summer School at the Aalto Design Factory, Espoo, Finland, August 23-26, 2010. Could you please distribute the pointers to your info boards, mailing lists, networks, and encourage your students or collaborators to apply? Application DL: 21.6.2010 (soon) more info can be found at - http://trac.sme-ccppd.org/SID/wiki/SIDTrainingSchoolProductSoundDesign201008 - mirror: http://www.acoustics.hut.fi/~cerkut/temp/SummerSchool/ briefly, We are organizing an international Sonic Interaction Design training summer school in collaboration with COST-SID action and Aalto University / Design Factory. Summer school will take place between 23rd and 26th August 2010 in Helsinki, Finland. The training school will focus on product sound design methods in Product Design & Development context. Learning outcomes, the participants will be able to • use effective strategies for concept generation and communication regarding the usage of sound in future products, • prototype and evaluate an interactive sonic product according to a scenario given by the partnering companies HipUI and Powerkiss • earn 2 ECTS from the Aalto University Application, ( no registration fee, DL: 21.6.2010 ) The applicants should send, • a CV, • a letter of motivation that clearly indicates the applicant's motivation, previous experience with interactive product sound design, and expectations from this training activity, • an official transcript of completed and remaining studies, Best, Koray ------------------------------------- M.Koray Tahiroğlu Media Lab, Aalto University, School of Art and Design 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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Re: [PD] plugin~ external
by Kim Cascone 15 Jun '10

15 Jun '10

just curious but is it normal netiquette on the Pd list to hi-jack other people's threads? also, I find it odd that many people on the list were more interested in adding to the debate defining the term 'professional' (in posts titled -> Subject: Re: plugin~ external) rather than adding to the problem of [plugin~] not working properly not criticizing - just an observation the reason I'm devoting a lot of my energy to figuring out the [plugin~] external is because I'm editing the LADSPA chapter in the FOSS Pd manual online --> http://en.flossmanuals.net/bin/view/PureData/UsingLADSPAplugins and I want to make sure the text is a) true and b) easily understood by a n00b

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Re: [PD] plugin~ external
by Kim Cascone 15 Jun '10

15 Jun '10

Ok so here are some more 'issues' I'm using the 'lpf' LADSPA plugin to use as a simple example for the FOSS manual it has one control which is the cutoff frequency I instantiate the [plugin~ lpf] in a patch the console window reports: verbose( 1):plugin~: found plugin "lpf" in library "/usr/lib/ladspa/cmt.so" verbose( 2):plugin~: open_plugin (x, "lpf", "/usr/lib/ladspa/cmt.so", 44100)\; verbose( 1):plugin~: constructed plugin "Low Pass Filter (One Pole)" successfully verbose( 1):plugin~: plugin ports: audio 1/1 ctrl 1/0 verbose( 1):plugin~: plugin active plugin~: "Low Pass Filter (One Pole)" =============== first level of confusion =============== occurs when a user is looking for the 'lpf' messages on the command line using analyseplugin lpf they won't find it unless they read the console carefully and see the LADSPA plug is actually called 'cmt.so' and if they type in analyseplugin cmt.so they will have to scroll through the dozens of plugins inside 'cmt.so' for the lpf plug not a bug per se but there must be other plugs that come bundled like the cmt.so which present a similar confusion...? =================== the second level of confusion =================== occurs when sending [plugin~ lpf] an [info] message in a patch the [pd/print] object reports to the console: b: port in control Cutoff Frequency (Hz) 0 0.5 b: port in audio Input 0 1 b: port out audio Output 0 1 leading the user to believe that the Cutoff Freq is controlled with a float from [0 - 0.5] instead of [0 - 0.5*srate] (n times the sample rate) while 'analyseplugin cmt.so' reports: Plugin Name: "Low Pass Filter (One Pole)" Plugin Label: "lpf" Plugin Unique ID: 1051 Maker: "CMT (http://www.ladspa.org/cmt, plugin by Richard W.E. Furse)" Copyright: "(C)2000-2002, Richard W.E. Furse. GNU General Public Licence Version 2 applies." Must Run Real-Time: No Has activate() Function: Yes Has deativate() Function: No Has run_adding() Function: No Environment: Normal or Hard Real-Time Ports: "Cutoff Frequency (Hz)" input, control, 0 to 0.5*srate, default 440, logarithmic "Input" input, audio "Output" output, audio as you can see the [pd/print] object is not reporting the correct message to send for 'cutoff freq' it SHOULD read: b: port in control Cutoff Frequency (Hz) 0 0.5*srate but is reporting b: port in control Cutoff Frequency (Hz) 0 0.5 so it seems the [pd/print] object is not passing the '*' symbol is this a known issue or can it be changed? also, just as a data point the gf [print] object reports: error: [print foo]: close-paren without open-paren foo: port in audio Input 0 1 foo: port out audio Output 0 1

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Re: [PD] plugin~ external
by Kim Cascone 15 Jun '10

15 Jun '10

hc wrote: Hey Kim, Switching back to that topic ;) From my point of view Pd-extended is a giant thing. There are many things that could be done to improve it. Since you put a lot of effort into testing the plugin~ stuff, then its worth it to me to put effort into making sure the whole thing is smoothly integrated into Pd-extended. That's my two bits... .hc Hans of course I have a vested interest in being able to host plugins in Pd I'm trying to move some of my Max/MSP sound design patches forward to Pd/Linux so I can finish up work on a new CD I'd really like to do some processing without resorting to firing up the old Powerbook and working in Max/MSP again...nothing against Max/MSP but I'd rather keep everything Linux for now instead of bailing and taking the easy way out but I appreciate your efforts to improve Pd and just want to let you know if there is anything I can do to be of help please don't hesitate to drop me an email :) ciao! KIM

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Re: [PD] plugin~ external
by Kim Cascone 15 Jun '10

15 Jun '10

hc wrote: Hey Kim, Switching back to that topic ;) From my point of view Pd-extended is a giant thing. There are many things that could be done to improve it. Since you put a lot of effort into testing the plugin~ stuff, then its worth it to me to put effort into making sure the whole thing is smoothly integrated into Pd-extended. That's my two bits... .hc Hans of course I have a vested interest in being able to host plugins in Pd I'm trying to move some of my Max/MSP sound design patches forward to Pd/Linux so I can finish up work on a new CD I'd really like to do some processing without resorting to firing up the old Powerbook and working in Max/MSP again...nothing against Max/MSP but I'd rather keep everything Linux for now instead of bailing and taking the easy way out but I appreciate your help to integrate and if there is anything I can do to be of help to you please don't hesitate to drop me an email cheers! KIM

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[Fwd: Re: pix_opencv and pdp_opencv for Mac OSX 10.6 ???]
by ydegoyon＠gmail.com 15 Jun '10

15 Jun '10

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[PD-announce] NYC Pd/Max Patching Circle this Sunday, June 20th
by Hans-Christoph Steiner 15 Jun '10

15 Jun '10

http://puredata.info/community/NYCPatchingCircle We are reviving the New York City Patching Circle and making it a monthly thing! Every third Sunday of the month, we'll be meeting at NYC Resistor. We spend enough time alone staring at our computers; we are proposing to work together. So often issues that arise when working can be solved with a quick two minute discussion that would take hours to solve alone. We have Dorkbot to see people's work, we have Share where anyone can play, we have workshops and universities to learn from. This is a meeting where we all can come to work. This is an informal gathering of patching and patchers (Pd, Max/MSP/ Jitter, and even vvvv, Eyesweb, Labview, etc.). Beginners and Experienced welcome. Open to everyone, students, the public, etc. Work on school projects, personal projects, ask for help, help others, or just patch quietly to yourself, in a room full of other people patching patches and helping other people patch. Every third Sunday of the month, starting June 20th 2010 Directions NYC Resistor, http://www.nycresistor.com/ 87 3rd Avenue, (between Bergen and Dean) 4th Floor Brooklyn, NY 11217 Tel. +1.347.850.4872 or +1.347.586.9270 2/3/4/5/B/D/Q/N/R to Atlantic/Pacific LIRR to Atlantic Terminal F/G to Bergen _______________________________________________ Pd-announce mailing list Pd-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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Lists
by Sean Harrigan 14 Jun '10

14 Jun '10

Hi I am new to PureData and I am trying to fo some frame by frame processing of some videos. i was thinking of using pix_dump to get a list of values and then look at the RGB values of each pixel in each frame. i am having trouble getting pix_dump to produce a list that i can step through, obtaion the values and change values in the list if needed. Any help about how to approach this is greatly apperciated or if you think there is a better way to look at the RGB values of the pixels in the frame. Thank you in advanced for all your help. ~Sean

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Re: [PD] Video Processing
by Ben Baker-Smith 14 Jun '10

14 Jun '10

> > Hi I am new to using PureData and I am looking for my help.? I am trying to > take a video file, currently one from the harddrvie but eventually a > streaming feed, and look at each pixel in each frame and consider the RGB > values of the pixels.? I want to then look at those values and calculate a > ratio of R-G and G-B and then determine what color I would like to? change > that pixel based on the ratio.? I believe I have found a good way to get the > data of the pixel, by taking a metro and a counter with the width and height > of the video and divinding by the width and and height and stepping through > the frame and send it to pix_data.? i unpack the RGB values and calculate > the ratio i need.? I am having trouble changing the pixel value to the color > i want.? I am looking for some insight on the best way to approach?this, or > if there is a better way to do it from scrath, or if you think it would be > more efficient to use another program and if you all know > of any other programs.? Thank you for your help. > ? > ~Sean It seems to me that the most efficient way of doing this would be with a custom GLSL shader. Ben Baker-Smith -- http://bitsynthesis.com

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Video Processing
by Sean Harrigan 14 Jun '10

14 Jun '10

Hi I am new to using PureData and I am looking for my help. I am trying to take a video file, currently one from the harddrvie but eventually a streaming feed, and look at each pixel in each frame and consider the RGB values of the pixels. I want to then look at those values and calculate a ratio of R-G and G-B and then determine what color I would like to change that pixel based on the ratio. I believe I have found a good way to get the data of the pixel, by taking a metro and a counter with the width and height of the video and divinding by the width and and height and stepping through the frame and send it to pix_data. i unpack the RGB values and calculate the ratio i need. I am having trouble changing the pixel value to the color i want. I am looking for some insight on the best way to approach this, or if there is a better way to do it from scrath, or if you think it would be more efficient to use another program and if you all know of any other programs. Thank you for your help. ~Sean

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Pd-list June 2010