Pd-list February 2003

pd-list@lists.iem.at

127 participants
210 discussions

tcl/tk installation problems
by nick phillips 02 Feb '03

02 Feb '03

hello pd list, i'm having some problems with a pd installation on a debian woody system (2.4.20 kernel) which i'm having a hard time fixing. i've managed to install pd on linux successfully several times on this same machine, but i recently had a hard drive failure and have had to reinstall everything. now when i run ./configure from the pd/src directory i get error messages about "no X11 found" and "no tcl/tk header found." I have both installed on my system - X is in the usual /etc/X11 directory and tcl/tk is in /usr/include/tcl8.3h. i've tried adding a softlink to tk.h in my /usr/include directory but still pd can't find my tcl/tk headers. where is pd searching? do i need to add softlinks to another directory or add a qualifier to ./configure? any help would be appreciated, i'm a little stuck at the moment! (as an aside, i downloaded a beta debian package of pd (pd_0.35.0-test11_i386.deb) which installed ok. however the same basic pd patch i was running before uses 16% cpu versus 8% before my hard drive failure! i'm not sure what the problem could be but i figure installing from source may help...) thanks in advance, nick -- http://hominoid.net extreme computer punkmusik

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tutorial: how to map midi notes through a microtonal scale
by X. J. Scott 02 Feb '03

02 Feb '03

Hi everyone including Mike and Pat, Attached is an example of how to map midi note numbers to the frequencies of any arbitrary tuning, for use with any pd synth. The tuning file is stored externally and is easy to specify as plain ASCII text -- 128 of numbers with one pitch per line where the pitch is such that a standard middle C is 60.000 and a standard A440 is 69.000. There is no synthesiser here as this is a bare bones example of microtuning - this example just maps the last midi note in to a plain oscillator. It's up to those with an interest to patch this into their pd synths. The example tuning file used is simply Gioseffo Zarlino's 2/7 Comma Meantone of 1558, for those curious. - Jeff

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ASIO driver and Digi 001 under XP
by Guillaume Potard 02 Feb '03

02 Feb '03

Hello I am new to pd, I have a Digi 001 soundcard running with ASIO drivers under XP. Where do i select the soundcard ? ( a la MAX DSP status ). Can I remap the channels ? At the moment I can only output on the Sound Blaster Live which is also installed. Thanks for your help Guillaume

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FFTs
by e.pkelly 02 Feb '03

02 Feb '03

Hi all, Does anyone know of a cheaper (in CPU terms) way of doing phase-vocoding than the one detailed in the pd documentation (phase-locked vocoder patch)? Do FFTs get cheaper with smaller block~ and window sizes? Has anyone written externals which implement basic pvoc operations for less MHz? I can run two FFT re-synthesizers in my signal-driven patch before it's too much (with bonk~ and fiddle~ running also). Ed

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GridFlow 0.7.0
by Mathieu Bouchard 02 Feb '03

02 Feb '03

[fwd: pd-list(a)iem.kug.ac.at, jmax(a)ircam.fr, ruby-talk(a)ruby-lang.org, 0xFF(a)music.columbia.edu] I am proud to announce a new release of GridFlow. Before going on with the usual information, let me tell you that I have screenshots for you! Since some may want to see what kind of animations may be done using GridFlow, I also have added a 10-frame animated GIF. http://artengine.ca/jmax/gridflow/gallery/color_correction.jmax.png http://artengine.ca/jmax/gridflow/gallery/eclipse.jmax.jpg http://artengine.ca/jmax/gridflow/gallery/feedback_fractal.jmax.png http://artengine.ca/jmax/gridflow/gallery/fire.jmax.png http://artengine.ca/jmax/gridflow/gallery/polygon.jmax.png http://artengine.ca/jmax/gridflow/gallery/ripple.jmax.png http://artengine.ca/jmax/gridflow/gallery/motion_tracking.gif ----------------------8<--------cut-here--------8<---------------------- Here is a new release of GridFlow (a multi-dimensional dataflow processing library for Ruby, jMax and PureData, specialized in pictures and video) http://artengine.ca/jmax/gridflow/ http://artengine.ca/jmax/gridflow/download/gridflow-0.7.0.tar.gz If you have any questions and/or want to talk, there is the #dataflow chatroom on IRC.FreeNode.Net, where all MAX-like software is on-topic. If you have any trouble installing GridFlow, please send me an email about it or see me on IRC. version 0.7.0 (2003.02.01): * new classes: @cast, @join, @ravel, @grade, @perspective * new grid protocol supports several number types (added uint8,int16) * added number type support in most classes * added "option cast" for @in in some formats * can now specify number types in grid literals * added some MMX support (accelerates by 0%..40%) * @import: added optional 2nd arg specifying type. * @import: can convert symbols to grids of their ascii codes. * new [@import per_message] yields one grid per incoming message * [fps]: added options "user" "system" "cpu" for selecting clock * aalib: added options autodraw, draw, dump * aalib: added raw input (two channels: characters, attributes) * x11: added support for 256-color mode using a private colormap. * x11: added "use_stripes" for alternate 256-color rendering. * fixed problems with earlier versions of Ruby (like 1.6.2) * new samples: polygon.jmax * videodev_effects.jmax: added sort-effects, centre-of-gravity-tracking * the time profiler is back to working !!! * @scale_by, @downscale_by: added right inlet, for configuration * @store is a bit faster * ppm: accelerated by large amount * @outer,@inner,@inner2,@fold accelerated by obscene amount (the previous version was released on 2002.01.10) ________________________________________________________________ Mathieu Bouchard http://artengine.ca/matju

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pix_multiimage arguments
by Martin Dupras 02 Feb '03

02 Feb '03

Hi, I'm trying to use pix_multiimage to switch between a number (say 100) of 512x512 jpes. I can do 10, but the wildcard argument in the message box seems to only work for one digit. Is there a way to load more than ten images? Thanks. - martin

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osc-xtra for macromedia director [pc]
by t.g. 02 Feb '03

02 Feb '03

dear list has anybody a win-port for garry kling's OSCar -director-xtra ??? i would like to use pd with director _thanx tobias

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Re: [PD] some basic questions
by CK 01 Feb '03

01 Feb '03

I read: > 1) is there a way to switch off dsp computing in a subpatcher only, and how? > (i think i should know that) |switch~ | > 2) i remember a discussion thread about max-like poly (or even better - > poly~) objects a while ago... has there been any external code written in an > attempt to realize that? AFAIK there are pixes attempts to do it dyamically (i.e. using internal messages, maybe there was an external involved ... let pix answer that one) anyway -> http://pix.test.at/pd/nqpoly/index.html > 3) is it guaranteed (or at least intended - and under which circumstances) > that - contrary to Max/MSP - opening a new patcher and adding objects to the > signal tree doesn't result in an overall crackle? At least in my experiments > i could open fairly complex and cpu-intense patches in PD without audio > interruption. hmmm good one, sometimes there's trouble sometimes there is none ... > 4) i think to recall vaguely that there has been a project featuring a > tcl/tk-less pd patcher system (i think with GTK). If this is true, does that > still reside somewhere? that was pdgui by karl macmillan: http://gigue.peabody.jhu.edu/~karlmac/download/pd/ regards, x -- chris(a)lo-res.org Postmodernism is german romanticism with better http://pilot.fm/ special effects. (Jeff Keuss / via ctheory.com)

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pix_video ? (gem)
by t.g. 01 Feb '03

01 Feb '03

and one more question i don't get pix_video or pix_videoNt to work in gem for livecapture it always say's: pix_video: driver 'Microsoft WDM Image Capture (Win32)' error: GEM: pix_video: Unable to set video format why??? thx + greetings again _tobias

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Acoustic conversion.
by Alex from Idoia 01 Feb '03

01 Feb '03

Hello, I would like to understand the purpose of the objects [rmstodb] [dbtorms] [powtorms]. I understand (...) what are Decibels and RMS (not Power, sorry) but I do not know how to use them in pd. For example when using the object [*~] I know that the value 0 in its right inlet correspond to a mute but I have not idea what is the maximum I can set before distorting the signal in my speaker. Also, if I play a sound file from my hard disk, I do not know how to set a vslidder for example to set the volume of my file. Finaly, when using [threshold], I do not know how the arguments are expressed ,db, rms other ? If someone could clarify that for me that would be great. Thanks a lot.

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Pd-list February 2003