Pd-list July 2008

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111 participants
206 discussions

-nogui on osx
by marius schebella 11 Jul '08

11 Jul '08

Hi, I am having some troubles getting -nogui option work on osx. right now there are several problems with that: if I add -nogui to the startup prefs, the icon in the task bar keeps jumping, but pd does not start up. I have to start pd from terminal to get it running. otoh, I would prefer a solution without terminal window. especially since when closing pd the terminal always stays open. any help on that would be welcome! marius.

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frequency components analysis
by Julian Villegas 11 Jul '08

11 Jul '08

Dear list, I'm using sigmund~ for extracting the freq. components of a sound but I was wondering if you know another object that does the same job using a different approach. I'd like to compare the results obtained by different methods. Thank in advance for your replies! Julian Villegas Me pregunto de un modo pensativo Que significa ser Colombiano? No se le respondi. Es un acto de fe JLB.

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Rainy days
by Andy Farnell 11 Jul '08

11 Jul '08

Something new to share for a bit of fun. It's for an exercise in the synthetic sound design book and it's about causality in sound. Some bits are old and maybe you've heard them before on my site, but the final ensemble is fresh. The first part is a wind model. It starts with a global (world) variable for windspeed and adds local gusts according to buildings nearby. Then objects are placed in the scene like telephone poles, trees and rocks. This is a new version that works by doing rule of thumb calculations on turbulence (critical Reynolds number from size and texture) to guesstimate the frequency (quasi- oscillation from vortex shedding). Thin wires whistle with a high sound and big buildings groan and wail with a much lower sound. Okay here's that... http://www.obiwannabe.co.uk/sounds/effect-wind3.mp3 Next there's rain If you're into graphics then the best way of thinking about this is as a "particle system", or rather it's about statistical distributions. Normally the rain just falls down in a regular stream and makes the sound of whatever it hits (usually ground, leaves or puddles of water). Noise is treated to get a certain distribution and width of clicks in a Gabor/Stockhausen sense, some things in the scene can be simple resonantors driven by the droplets. http://www.obiwannabe.co.uk/sounds/effect-plainrain.mp3 Now, another model in my box of tricks is a window pane I've built (from Perrys square lamina description... that's a glass laminar model made with banded waveguides.) Here's a few knocks on the virtual window with a virtual stick. http://www.obiwannabe.co.uk/sounds/effect-knockonwindow.mp3 So I sit here looking out of my real window, and I guess artists mimic their surroundings, so this sound is an insight into where I live. Tonight the rain is lashing down and the wind is howling in the trees like a typical British winter. I thought this would make a good example of causality. What if we take the wind environment, put the rain particles into the wind and add a window? Here's what it sounds like inside on a stormy day (the wind is deliberately modulated in a periodic way to accentuate the effect). http://www.obiwannabe.co.uk/sounds/effect-rainywindow.mp3 I hope this gives something interesting about potential of procedural audio fx with Pd, maybe this isn't the sort of thing one can do so easily with traditional sound design. best 2 all, andy --- Use the source

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ann: pd as the engine for our class installation
by John Harrison 11 Jul '08

11 Jul '08

This semester I taught a course where Engineers and Artists worked together to create interactive art. For the final project we took over an art gallery and built a virtual environment using 12 computers, 12 speakers, 12 projectors and several Arduinos. We built and networked everything in Pd/GEM. Unfortunately the video doesn't capture much of the very cool sounds of the environment, but at least you will see the networked sparklers running in GEM. I hope you enjoy: http://vimeo.com/994958 I am so grateful for Pd as a resource for me, my classes and my community. I send this hoping that perhaps a developer or 2 will find it gratifying to see some of the work that we are able to accomplish with this amazing tool. -John -- John Harrison http://alumni.media.mit.edu/~harrison

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flash server open on osx
by marius schebella 11 Jul '08

11 Jul '08

Hi, the flashserver object has a nice feature to open flash files from within pd, but unfortunately this does not work on osx. it works on windows, not sure about linux. flashserver announces that it is opening a file: "flashserver: going to open fooflash", but then nothing happens. Is someone maintainning this object? thanks, marius.

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using alternative preference files
by marius schebella 11 Jul '08

11 Jul '08

hi, I am planning to ship a striped down standalone pd versions that will provide a one click option to start a patch+interface. This will allow to run patches like applications without depending on any user preferences. Everything comes out of the box. It turns out that this is much easier on windows than on osx. (sorry, no tests on linux yet). One thing I don't know right now is where I find the settings which plist pd will use. I know that pd vanilla and pd-extended are using different plist files, is that defined in pd.tk? I need to provide a preferences file that has the -nogui option plus a relative path to the patch that should be started... hans, do you have some (online) docs, how the pd.apps are created? I know that the startup process of pd is slightly different than on osx (wish starting pd), I wonder if I have to change the app if I want to run a -nogui version? thanks again for any help. marius.

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how to send song position pointer?
by christian dietz 10 Jul '08

10 Jul '08

hi everyone! i'm trying to send a "song position pointer"-message to a sequencer via the midiout object, but i don't get it to work. as i understood the message has to be a status byte (in this case 242 (dez) ) followed by two data bytes to set the song position. i'm able to send the status byte. e.g. i can send start, stop, continue messages which don't need data bytes. thanks a lot. christian.

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why bother...
by Andre Schmidt 10 Jul '08

10 Jul '08

hello pd world, i have now come to the conclusion that FLOSS coding is just wasting my time, as i don't want to get abused by some dirty closed-source shameless bastards. so i won't be evolving this cool idea anymore: SimSUI - a Simple SVG User Interface - http://osku.de/simsui but as my first intention was to let it communicate with pd (add OSC to vanilla pd already!;), i would like to dedicate that small idea/code to pd(-list), my first open-source love... i could say "do what ever you want with that (lousy) code", but as long as closed-source is not illegal, every one can do what ever they want with every code, so no use to say the obvious... ask me again when the revolution starts! .andre p.s. some ass holes has/will probably software patented the idea anyway, so why bother...

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compiling pd-extended ubuntu hardy amd64
by Sergi Lario 10 Jul '08

10 Jul '08

I get some errors trying to compile pd-extended in a ubuntu hardy amd64. I did this steps: 1.- Get pd-extended trunk code via svn sll@sll-cube:/home/pd-extended$ svn co https://pure-data.svn.sourceforge.net/svnroot/pure-data/trunk/ ./ 2.- Get Gem code from http://gem.iem.at/ and copy the content sll@sll-cube:/home/pd-extended$ cp /home/sll/Escriptori/gem-0.91.1.tar.gz ./ sll@sll-cube:/home/pd-extended$ tar xzvf gem-0.91.1.tar.gz 3.- Rename floder to Gem sll@sll-cube:/home/pd-extended$ mv gem-0.91.1 Gem 4.- Compile pd-extended sll@sll-cube:/home/pd-extended/packages/linux_make$ sudo make install While I was getting errors I modifyed some code and install libs like this: A. add -fPIC to c-flags in gem2pdp B. install libswscale-dev C add -fPIC to miXed for cyclone - sll@sll-cube:/home/pd-extended/externals/miXed$ vim Makefile.common After each point I tried to compile another time with make install At the moment I get this errors and I don't know how follow with it. /home/pd-extended/externals/iem/hdspm_mixer/hdspmmixer.c:99: avís: unused parameter 'x' install: ha fallat stat() sobre «/home/pd-extended/externals/moocow/extended/build.moo/ext*/*.pd»: No such file or directory install: ha fallat stat() sobre «/home/pd-extended/externals/pmpd/*.pd_linux»: No such file or directory make[2]: [pmpd_install] Error 1 (ignored) install: ha fallat stat() sobre «/home/pd-extended/externals/pidip/*.pd_linux»: No such file or directory make[2]: *** [pidip_install] Error 1 make[1]: *** [externals_install] Error 2 make: *** [install] Error 2 (* avís = warning , ha fallat = has failed) If somebody knows anything about it, please let me know. Thanks, Sergi.

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Re: [PD] smallest number from a stream of numbers
by Hans-Christoph Steiner 09 Jul '08

09 Jul '08

Oops, I forgot to add, the min/trigger and track_min/max examples give the min/max for all of the past values. Cyrille's example with [last_n] gives you the min and max for the past thirty values. There is also [local_min] and [local_max] for tracking trends. .hc On Jul 9, 2008, at 11:00 AM, Hans Roels wrote: > I don't think you need lists for this, just 2 objects [min] > [trigger] and an initial value. in attach is an example with a > random stream of numbers. > hans r > > At 21:47 8/07/2008, you wrote: >> Frank Barknecht wrote: >> > Hallo, >> > cyrille henry hat gesagt: // cyrille henry wrote: >> > >> >> Ben Carney a écrit : >> >>> Hello there list! >> >>> >> >>> pretty simple question I think, but I'm a bit stumped. >> >>> >> >>> I have a stream of numbers coming in from a flex sensor and I >> would love >> >>> to be able to grab the lowest number from x amount of numbers, >> every 30 >> >>> numbers or so. >> >>> >> >>> I looked through the [list minmax] example, but could not >> figure out how >> >>> to make it do it "live". >> >>> >> >> | >> >> [mapping/last_n 30] >> >> | >> >> [list minmax] >> >> | >> > >> > Or >> > >> > [list-lastx 30] >> > | >> > [list-minmax] >> > >> >> Or how about >> >> /\ >> [moses] \ >> | \ >> [trigger a a] >> >> with a handmade counter that resets moses every n'th time. >> >> eni >> >> _______________________________________________ >> Pd-list(a)iem.at mailing list >> UNSUBSCRIBE and account-management -> http://lists.puredata.info/ >> listinfo/pd-list<maximum-minimum.pd> > _______________________________________________ > Pd-list(a)iem.at mailing list > UNSUBSCRIBE and account-management -> http://lists.puredata.info/ > listinfo/pd-list ------------------------------------------------------------------------ ---- As we enjoy great advantages from inventions of others, we should be glad of an opportunity to serve others by any invention of ours; and this we should do freely and generously. - Benjamin Franklin

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Pd-list July 2008