Pd-list February 2006

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143 participants
216 discussions

Pd-0.38.4-extendedRC8
by Hans-Christoph Steiner 14 Feb '06

14 Feb '06

This is hopefully the final release. Just some minor fixes from RC7. One notable fix is the GNU/Linux build is compiled with Jack support now. Also, [list] has been backported from 0.39.2 and is included. http://at.or.at/hans/pd/installers.html .hc ________________________________________________________________________ ____ "[W]e have invented the technology to eliminate scarcity, but we are deliberately throwing it away to benefit those who profit from scarcity." -John Gilmore

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trouble building externals from HEAD cvs on Planetccrma FC3
by David O'Toole 14 Feb '06

14 Feb '06

Pd builds and installs fine from HEAD but I can't seem to get externals built. It churns for awhile, then: make -k externals make[1]: Entering directory `/home/dto/bigsrc/pd/externals/build/linux' cc -fPIC -DPD -DUNIX -funroll-loops -fomit-frame-pointer -O3 -march=athlon-xp -m3dnow -msse -mfpmath=sse -W -Wshadow -Wstrict-prototypes -Wno-unused -Wno-parentheses -Wno-switch -I. -I.. -I../../../pd/src -I../include -o "concat.o" -c "../src/concat.c" ../src/concat.c:1:39: ../../ggee/control/concat.c: No such file or directory make[1]: *** [concat.pd_linux] Error 1 make[1]: Target `externals' not remade because of errors. make[1]: Leaving directory `/home/dto/bigsrc/pd/externals/build/linux' make: *** [all] Error 2 [root@pod linux]# can anyone tell me what this error means ? [root@pod linux]# make -- Dave O'Toole dto(a)twu.net

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can't load pdp library in Pd-0.38.4-extended
by clairex 13 Feb '06

13 Feb '06

Hi List i'm a complete beginner. I've just installed Pd-0.38.4-extended on a G4 laptop with Mac OS X 4.4. i placed 'org.puredata.pd.plist' in ~/Library/Preferences. When i open Pd it says: "/Applications/Pd-0.38.4-extended-RC8.app/Contents/Resources/Scripts/../extra/pdp.pd_darwin: dlopen(/Applications/Pd-0.38.4-extended-RC8.app/Contents/Resources/Scripts/../extra/pdp.pd_darwin, 10): Symbol not found: _gluOrtho2D Referenced from: /Applications/Pd-0.38.4-extended-RC8.app/Contents/Resources/Scripts/../extra/pdp.pd_darwin Expected in: /usr/X11R6/lib/libGL.1.dylib" Then it says it can't open the pdp library and also: "pdp_text : severe error : could not load default font : no rendering !!!" I downloaded X11 from apple but it refused to install. Could this have anything to do with a partitioned hard drive? Could somebody kindly tell me what i can do about this? Thanks a lot Claire ___________________________________________________________ Win a BlackBerry device from O2 with Yahoo!. Enter now. http://www.yahoo.co.uk/blackberry

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PDDP Documentation Meeting - Feb 14th
by B. Bogart 13 Feb '06

13 Feb '06

Hey all, The next PDDP meeting is scheduled for this tuesday Feb 14th. 11.00 Pacific Time 14.00 Eastern Time 19.00 UTC 20.00 Central European Unfortunatly I will not be able to give the meeting my full attention, since I'll be stuck at work. I hope the rest of you continue the meeting and discuss the workThrough projects, the structure of the PDDP curriculum and the structure of the PDDP project itself. The notes from the last meeting are up at the usual place: https://www.puredata.info/dev/pddp Hope you can make it. .b.

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loading dir of soundfiles
by Mark Polishook 13 Feb '06

13 Feb '06

just wondering if there's an example or documentation somewhere for loading a directory of soundfiles (rather than reading one in at a time) so that the patch can figure out how many files exist and then load them, etc. tia, mp

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[SAT-ANNOUNCE]nSlam-2.0 & new xjimmies available
by Jean-Michel Dumas 13 Feb '06

13 Feb '06

[PLEASE BROADCAST] [MERCI DE DIFFUSER] get nSLAM 2.0 and the xjimmies library here : http://tot.sat.qc.ca/eng/nslam.html obtenez nSLAM 2.0 et la librairie xjimmies ici : http://tot.sat.qc.ca/fra/nslam.html --------------------------------- New Release announcement NSLAM AUDIO SUITE version 2.0 Multi-channel audio suite for streaming, spatialization and signal processing for musicians, sound artists, and audio/music system developers. Multi-platform: Linux, OSX, Windows What is nSLAM? nSLAM is an open-source audio suite for multi-channel audio application development, developed by the SAT Audio Group. It is written for the PD (Pure Data, by M. Puckette) environment and includes a library of low-level DSP objects called Â“xjimmiesÂ” (most of which, has been also ported to Max/MSP), online help, and example applications for multi-channel audio streaming and immersive audio, among others. The Â“xjimmiesÂ” library included with nSLAM v2.0 offers new functionality not defined in the original Â“jimmiesÂ” (IRCAM 1994) running under Max/MSP. Specifically, a number of new objects have been added for working with multichannel sound, sound source simulation and immersive audio. The name of the library, formerly Â“jimmiesÂ”, was changed to Â“xjimmiesÂ”, since the Â“XÂ”-platform library runs in both PD (Windows/OS-X/Linux) and now, in Max/MSP (Windows/OS-X). nSLAM includes some example applications, for didactic and practical purposes; the applications can be easily cannibalized by users looking for spare parts, or wishing to develop their own custom applications. Applications for multi-channel streaming and sound processing are offered. note: a version of xjimmies and the example apps for Max/MSP will soon be available (see http://www.tot.sat.qc.ca/eng/nslam.html) nSlam is developed and offered by the TOT audio group of the SAT (SocietÃ© des Arts Technologiques, MontrÃ©al) TOT audio group (http://www.tot.sat.qc.ca/eng/audio.html) Zack Settel Jean-Michel Dumas Simon Piette ------------------------------------ Nouvelle version disponible NSLAM AUDIO SUITE version 2.0 Suite audio multi-canal de streaming, de spatialisation et de traitement de signal ciblant les musiciens, les artistes sonores et les dÃ©veloppeurs de systÃ¨mes audio/musicaux. Multi-plateforme: Linux, OSX, Windows Qu'est-ce que nSLAM? DerniÃ¨re version : 1.0 nSLAM est une suite audio Ã code source ouvert qui facilite le dÃ©veloppement d'applications audio multicanal dÃ©veloppÃ©es par le Groupe Audio de la SAT. nSLAM a Ã©tÃ© Ã©crite dans l'environnement PD (Pure Data, par M. Puckette) et inclut une librairie d'objets DSP de bas-niveau apellÃ©s "xjimmies" (disponible aussi pour Max/MSP), de l'aide en ligne et des exemples d'applications pour le "streaming" d'audio multicanal (entres autres). La librairie "xjimmies" incluse Ã nSLAM v1.0 offre de nouvelles fonctionnalitÃ©s qui n'avaient pas Ã©tÃ© dÃ©finies Ã l'intÃ©rieur des "jimmies" (IRCAM 1994) originaux sous Max/MSP. Plus spÃ©cifiquement, de nouveaux objets ont Ã©tÃ© ajoutÃ©s pour faciliter le travail en audio multicanal, en simulation de source sonore et en audio immersif. Le nom de la librairie, anciennement "jimmies", est maintenant "xjimmies" puisque c'est une librairie de plateforme X qui fonctionne sous PureData (Windows/OSX/Linux) et maintenant sous Max/MSP (Windows/OSX). nSLAM inclut plusieurs exemples d'applications, tant didactiques que pratiques. Les applications peuvent facilement Ãªtre modifiÃ©es par les usagers qui dÃ©sirent dÃ©velopper leur propres applications. Des applications de "streaming" et de traitement sonore multicanal sont offertes. note: la librairie "xjimmies" sous Max/MSP sera disponible sous peu (voir http://www.tot.sat.qc.ca/fra/nslam.html). nSlam est dÃ©veloppÃ© et offert par le groupe audio TOT de la SAT (SociÃ©tÃ© des Arts Technologiques, MontrÃ©al) Le groupe audio TOT (http://www.tot.sat.qc.ca/fra/audio.html) Zack Settel Jean-Michel Dumas Simon Piette

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GEM Pix video transparency
by Jonathan Goodwin 12 Feb '06

12 Feb '06

I'm trying to figure out the best way to adjust the transparency of pix_video, so that I can overlay a live webcam feed over other videos. What would people recommend? I've had a little play with the alpha object, but I'm having a bit of trouble understanding the whole threshold arguments thing?! Jonathan

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Mapping library: Where or what is [resample]?
by Frank Barknecht 12 Feb '06

12 Feb '06

Hi, the help files in the externals/mapping library often use a [resample] object which I cannot find. Where can I get this and what does it do? Is it just a [scale]-like object? Ciao -- Frank Barknecht _ ______footils.org_ __goto10.org__

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definitions of data types
by Hans-Christoph Steiner 12 Feb '06

12 Feb '06

So there have been lots of emails over the years on what to call all the various types of data that Pd works with. In order to support the effort of getting to the bottom of this, I have started a wiki page to document all of the relevant details. http://puredata.org/dev/PdDefinitions I've also started putting related patches in CVS ("messageoddness" isn't the best name, but I haven't gotten around to changing it): /doc/additional/messageoddness The key thing to this discussion is to separate the implementation from the language. Pd is a language in its own right, and therefore when talking about definitions, we should not talk about how its implemented, but rather how Pd interprets things. For data types, I think its easiest to look to [route], [trigger], and [select], three Pd objects whose core function is to interpret data types. And this will give some perhaps surprising results. For example: [word( | [select symbol] this tells us "error: select: no method for 'word'", therefore [word( is not a symbol. [word( | [route symbol] This outputs on the right inlet, telling us [word( is not a symbol. [word( | [trigger symbol] This tells us "error: trigger: can only convert 's' to 'b' or 'a'". This error message seems to tell us that [word( is not a symbol also. So in Pd, [word( is not a bang, float, symbol, list, or pointer. So its currently undefined, and its an "element". A list is made up of "elements" also. There are "list" series and series which are currently undefined, meaning series of 2 or more elements which starts neither with an non-float element nor the selector "list". Which brings me to something like this: bang float (== numeric element) list (== list series) pointer symbol symbolic element selector series Here are some attempts at definitions: list: a series of 2 or more elements whose first element is either the selector "list", or a float, which causes the "list" selector to be implied. A 0-element list is a bang, a 1-element list is either a float or a symbol, are there any exceptions where a 0- or 1-element lists actually exists? I suppose only in a message box. symbol: a symbol is a two element series where the first element is the "symbol" selector and the second element is a symbolic element. But any series with a selector of "symbol" with more than two elements is automatically converted to a symbol by truncating all other symbolic elements but the "symbol" selector and the second element. selector series: a series of 2 or more elements whose first element is neither the selector "list" nor a numeric element. But it needs a better term. numeric element: any element which is a functional representation of a number. In Pd, a numeric element is the same as a float. symbolic element: any element which is not a functional representation of a number, usually in the form of words .hc ________________________________________________________________________ ____ "Computer science is no more related to the computer than astronomy is related to the telescope." -Edsger Dykstra

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Audio-Rate GOP possible?
by João Miguel Pais 12 Feb '06

12 Feb '06

Hi, I've made this abstraction, which is a GOP. It's a normal volume controller, audio on left sides (up+down), and level on right sides. But when I turn audio on, my CPU jumps to around 40% (Thinkpad 1.5Mhz, XP). That has nothing to do with how much signal is being processed by pd, I guess only with the updating of (semi-)Audio-Rate information by tcl/tk, which seems to be quite expensive. Is this only a windows issue, or is it a general problem from tcl/tk? Is it possible in any way to make an abstraction which can update (semi-)audio-rate information? Thanks, Joao -- Lugostr. 14 79100 Freiburg i. Br. Deutschland +49 (0)761 7074997 jmmmpais(a)googlemail.com

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Pd-list February 2006