Pd-list April 2006

pd-list@lists.iem.at

136 participants
232 discussions

[ANN] SwingOSC 0.40
by Sciss 26 Apr '06

26 Apr '06

kieka, SwingOSC v0.40 is online now: http://sourceforge.net/projects/swingosc/ SwingOSC is an OpenSoundControl (OSC) server that allows dynamic creation and control of Java classes, for example to create graphical user interfaces. Example classes for SuperCollider are provided. New in this version is a first example of using SwingOSC inside Pure Data. SwingOSC requires a Java 1.4+ virtual machine. what's new in SwingOSC 0.40 : * OSC syntax change: using nested blob'ed OSC messages is deprecated ; instead nesting is achieved by using special string arguments. this makes SwingOSC really usable in other clients such as Pure Data. * added first examples for Pure Data * sc classes: all modified to use the new OSC syntax. added JPen, JSCUserView, JSCTextView, fixed JSCHLayoutView and JSCVLayoutView, added mouse, component resize and focus traversal tracking, modified the JMouseBase gui, optimized performance, fixed a lot of bugs. * MultiStateButton was moved to the de.sciss.gui package and is slightly modified. sorry for crosspostings. best wishes, -sciss-

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Re: [PD] amplitude of modal synthesis
by frablanc 26 Apr '06

26 Apr '06

The continous-time equation is : (d²x/dt²)/F² +(dx/dt)/(Q*F)+x = E, where E stands for the excitation, F the "proper" pulsation (not the frequency) of the system, and Q the quality coefficient. the derivations are discretized using : d²/dt² --> (Z - Z^(-1))Fe², and d/dt --> (Z - Z^(-1))Fe/2 (Fe is the samplerate); After some algebra, this leads to the difference equation: x(n) = 1/(Fe²/F² + Fe/(2QF))* [ (2Fe²/F² - 1)x(n-1) + (Fe/(2QF) - Fe²/F²)x(n-2) + E(n-1)]; anyway, i did a mistake in the biquad~ coefficients (the excitator coefficient), and now highest pulsations are louder than the lowest, but the difference is smaller ... here is the new patch. François. > interesting problem, could you describe the equation you used? > > cyrille > Accédez au courrier électronique de La Poste : www.laposte.net ; 3615 LAPOSTENET (0,34 /mn) ; tél : 08 92 68 13 50 (0,34/mn)

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sfplay~
by Sciss 26 Apr '06

26 Apr '06

hallo, i'm using pd 0.38-extended from sourceforge. i was wondering what the preferred way to stream sound files is. first attempt was sfplay~ as in max and this object seems to exist. only i get an error message saying that libsndfile complains about a version mismatch. then i used readsf~ which seems to work, only - as opposed to the statement in the help file - it doesn't accept 24bit files, i tried aiff (comes out as noise, probably wrong endianess) and wave (unknown header format), au (NeXT) interestingly works in 24bit. best, -sciss-

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writing to the serial port with [comport]
by Hans-Christoph Steiner 26 Apr '06

26 Apr '06

I am trying to write data from Pd to Arduino. Has anyone used [comport] to write out serial data before? Any example patches? I can only get TX_OVERRUNS errors. .hc ________________________________________________________________________ ____ http://at.or.at/hans/

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calling all in Madrileños and anyone nearby
by Hans-Christoph Steiner 26 Apr '06

26 Apr '06

I am here in Madrid working at Conde Duque at the Media Lab Madrid with Enrique Tomas from this list, and lots of other people. Its an open workshop, so anyone can come by and check things out, play around, etc. Let's make more Pd connections! http://www.interactivos.org/ .hc ________________________________________________________________________ ____ 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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Cubemixer with hdsp and 8 lodspeakers?
by rodrigo＠anorg.net 25 Apr '06

25 Apr '06

hi all! I'm trying to make an ambisonic installation and I can dispose of 8 aktive genelec lodspeakers and an rme multiface card (8 outputs). Since I'm not an expert in the issue, it would be great if someone could answer the questions below or point me to the right direction (there's a lot of stuff about this around, and I'm a little disoriented!). I'm taking a look at the Cubemixer ( http://iem.at/projekte/acoustic/awt/abcde/project_view), and it seems like everything I need is already implemented there. But from what I've read, it looks like it is implemented for 16 Loudspeakers an an rme 9632. Is it possible to do it only with 8? What would be the ideal position of the speakers then? What configuration changes do I have to do, and which output channel gets assigned o what speaker? What do I have to do to use the hdsp instead of the rme 9632? First of all, it is important for me to know if its possible to reconfigure the cubemixer to do this, and how much work in your opinion would it take. If not, perhaps you know some other way to do ambisonics with the equipment I have. thanks a lot in advance! cheers, rodrigo

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mtx_*~ in pd-extended ubuntu
by João Miguel Pais 25 Apr '06

25 Apr '06

I've been trying out pd-ext in ubuntu. As it was said, not all externals are yet automatically compiled. One of them seems to be mtx*_~, although zexy is there (zexy 2?). the matrix externals are in iemmatrix, so maybe zexy isn't in version 2.0 yet. is there a wiki-page where this information is maintained? can someone in charge (H-C?) start one, where people (ie. me :) ) know, where to get/update this kind of informations? of course that pd isn't commercial and there isn't enough support to make the docs updated as possible. but it would help a bit if the users could know where to get updated informations. each can find it's own sollution (most of them just compile what's missing), but then there's still someone who has to use time writing these kind of messages, figuring out what's wrong, etc. Joao -- Lugostr. 14 79100 Freiburg i. Br. Deutschland +49 (0)761 7074997 jmmmpais(a)googlemail.com http://www.puredata.org/Members/jmmmp

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Attempting to send a string containing spaces through pack.
by Luke Yelavich 25 Apr '06

25 Apr '06

Hi all. I am attempting to use pack to join a couple of strings together, but haven't been able to work out how to send one string of data with spaces in it through as one symbol. string1 Spaced String | | | | ---------- |pack s s| ---------- | | ------- |print| ------- Thanks in advance. -- Luke Yelavich GPG key: 0xD06320CE (http://www.themuso.com/themuso-gpg-key.txt) Email & MSN: themuso(a)themuso.com ICQ: 18444344

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modelling a 808-snaredrum
by Roman Haefeli 25 Apr '06

25 Apr '06

hi though i could realize my idea (thanks to cyrille and frank), this was not the solution for my original problem: modelling the snare-sound of the snaredrum of tr-808. i could extract the (original) pure snare-sound by subtracting a soundsample without snare from a sample with both membrans and snare (here: http://www.netpd.org/~roman/sd_snare.wav). when looking at the waveform, it doesn't really look like noise, rather like a kind of filtered dirac, triggered randomly in time. i was not able yet to create this sound in pd (i haven't come even close to it :-( ), though i'm convinced it should be possible, when it was possible to do it the analogue way. if someone has made any efforts in this stuff, i would be very interested ( i'm surely not the first person on the list, who tries to simulate fancy hardware like tr808 and tr909). for everybody interested: attached is my first try to emulate the 808-bassdrum. cheers roman

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how to generate such a signal in pd?
by Roman Haefeli 25 Apr '06

25 Apr '06

_ max peak /| /| / | / | /| / | /| / | / | _ min peak / | /| / | / | / | /| / |/ |/ |/ |/ |/ | specs: - the angles of the ramps should be constant - the peaks should be randomly distributed between min_peak and max_peak roman ___________________________________________________________ Telefonate ohne weitere Kosten vom PC zum PC: http://messenger.yahoo.de

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Pd-list April 2006