Pd-list June 2003

pd-list@lists.iem.at

122 participants
165 discussions

How do you do this? GUI and GOP questions
by Matthew Allen 12 Jun '03

12 Jun '03

So in the last 3 weeks or so I've been able to really sit and work on trying to get a couple of my abstractions to the point where I could post them. One of the things GUI wise I've been struggling with is how to represent a list of symbols that the user can choose, a quick example would be having a user choose between 7 lengths of a step sequncer (2 steps, 4 steps, 6 steps, etc). I have been using hradio and vradio, but I need labels to appear on a GOP. My work around for this was to create Canvas objects of unit tall and place them along the vradio: #N canvas 0 0 452 302 10; #X obj 153 110 vradio 15 1 0 4 empty empty empty 0 -6 0 8 -262144 -1 -1 0; #X obj 153 125 cnv 15 60 1 empty empty 2_step 20 -8 0 8 -1 -1 0; #X obj 153 140 cnv 15 60 1 empty empty 4_step 20 -8 0 8 -1 -1 0; #X obj 153 155 cnv 15 60 1 empty empty 6_step 20 -8 0 8 -1 -1 0; #X obj 153 170 cnv 1 60 1 empty empty 8_step 20 -8 0 8 -1 -1 0; What do other people do to label H and Vradios for GOP's? This is fine for small lists, but really large ones (say 16 or greater) this becomes unmanageable. And as a more general question how do people deal with letting a user select a long list of symbols? I have a step sequencer I have been building and adding to for a while, that lets me select from 4 banks (labelled A-D) of 16 patterns. For doing things like morphing from one patern to another or other weird stuff I would really like to be able to have the user select A12 and D8 as opposed to 12 and 56 which will certainly confuse the new user. thanks m.

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Re: Real-time sound from rigid-body physics simulator?
by Hans-Christoph Steiner 12 Jun '03

12 Jun '03

FYI: this is a question for the pd-list. pd-dev is for questions directly related to developing pd and objects for pd. I am responding on pd-list. I just found some pd objects for "realizing physical models of impact interaction" which sounds like what you are looking for: http://www.soundobject.org/software.html It should be pretty straightforward to take force and velocity values into pd and use them to control sound. The CPU usage would mostly depend on the synthesis algorithm you use, but I think your target CPU usage should be reachable. .hc On Monday, Jun 9, 2003, at 15:07 America/New_York, Randy Demsetz wrote: > Hello all, I'm brand new to this list. I'm a game developer working on > an > upcoming title. I'd like to use the impact forces, velocities, etc. > from the > game's collision detection and physics engine (rigid body, not > deformable) > to create realistic physical sounds (such a ball rolling on a floor, > or a > box striking a wall and bouncing to the floor). It has to be real-time, > where the physics engine's values can only be sampled at 1/120th of a > second > intervals. It has to take up less than 5% of a 1.5GHz CPU processing > time. > > Can it be done? Are there code samples of this already done (free or > licensable)? > > Thanks, > Randy > > > _______________________________________________ > PD-dev mailing list > PD-dev(a)iem.kug.ac.at > http://iem.kug.ac.at/cgi-bin/mailman/listinfo/pd-dev

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Re: [PD] electrofringe (sorry, slightly OT)
by Chris McCormick 12 Jun '03

12 Jun '03

Contacting off list... Chris. On Thu, 12 Jun 2003 18:15:22 +1000 dmotd <inaudible(a)dmotd.cjb.net> wrote: > chris.. > will most probably be there this year.. > still trying to coordinate time+space etc.. > are you interested in holding patcher workshops? > can speak to some peeps about it? > i know there is already space allocated for > rt/audio/video/stuff but can't elaborate any further.. > would be v.interested in melding ideas.. > ciao.. > dmotd > > Chris McCormick wrote: > > Hey, > > Any pure-data people gonna be at electrofringe in Australia this > > year? > > > > Chris. > > _________________________________ > > chris(a)mccormick.cx > > http://www.mccormick.cx > > http://www.hypercube.com.au > > http://www.sciencegirlrecords.com > > > > _______________________________________________ > > PD-list mailing list > > PD-list(a)iem.kug.ac.at > > http://iem.kug.ac.at/cgi-bin/mailman/listinfo/pd-list > _________________________________ chris(a)mccormick.cx http://www.mccormick.cx http://www.hypercube.com.au http://www.sciencegirlrecords.com

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electrofringe (sorry, slightly OT)
by Chris McCormick 12 Jun '03

12 Jun '03

Hey, Any pure-data people gonna be at electrofringe in Australia this year? Chris. _________________________________ chris(a)mccormick.cx http://www.mccormick.cx http://www.hypercube.com.au http://www.sciencegirlrecords.com

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message-creation and parsing questions
by David Merrill 12 Jun '03

12 Jun '03

Hello pd-ers, I'm still getting the hang of pd, and I'm currently using it to build the mechanism to run a perceptual experiment. For each condition I want to read in values from a text file, play a tone, and record the result. The parts I'm having trouble with are: - how can I build up a message from parts? for instance, the [writesf~] object responds to an "open" message with a single argument, like: "open /tmp/output1.wav" but I want to be able to iterate, and supply "output2.wav", "output3.wav" etc.. I have looked at the docs for the [pack] object, but I'm not sure that it can receive messages as input and pack them, or output it's result as a message - is that correct? am I thinking about this in a wrong way? - how can I parse a line of text such as: "output1.wav 440 500 1500" that I get from a [textfile] [bang] into its constituent parts (preserving the appropriate types)? - (related to the above) is parsing a string different from parsing a list? much appreciated! -David Merrill

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Re:[PD-dev] new pure-data.org
by Winfried Ritsch 12 Jun '03

12 Jun '03

Hello, Now it starts... I have set up the http:://testpd.iem.at/ I have put nothing in except I copied a text in the frontpage. Its now just to play around, except the user data schould be hold Please make a join now and mail me which role you want with this account, I will set this. Poeple which have an IEM account (like guenter and miller msp ;-) already have an account which has to be initialized. I will add some tabs in the evening like proposed. Plan: If it got enough input I will rename it to pd.iem.at (in a week or so) please: any Domainname which should be mapped on the site please mail me I will make an entry in remapping. (I can also remap on an directory inside the side as an individual entrypoint). mfg winfried

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GEM: file size limit for loading movies?
by martin dupras 12 Jun '03

12 Jun '03

Hi, I'm developing a VJ patch. Everything works with an 1.6GB avi that I made using the indeo 5.0 codec loading into pix_film (windows). On the other, if I try a newer avi, which is 5.5GB (same codec) it loads (according to the console messages) but it doesn't display. Is there an upper file size limit to avi's that can be loaded in Gem objects, or pix_film specifically? - martin

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latency and gem crashing
by Brent Cody 11 Jun '03

11 Jun '03

Hello, Here are my two issues: ******FIRST******************************************************************* LATENCY (The following is a description of what happens without using gem. Specifically, I type ``pd -audiodev 3 -midiindev 1'') I have a midi controller going into an m-audio usb quattro, and the latency is around 0.5 seconds. I'm using windows xp. I have ``asio'' selected in the control panel for the quattro. If I try using ``-asio'' everything slows down to the speed of molasses. How can I reduce the latency to something reasonable? Does anyone else have the same setup as mine? *******SECOND****************************************************************** GEM CRASHING (I type ``pd -audiodev 3 -midiindev 1 -lib /pd/gem/gem'') Everything (except for the 0.5 sec latencey) works beautifully for about 15 minutes, when, invariably, either one of the two following things happen. 1.) An error window pops up and says something like ``a fatal error has occured.'' I click ``ok'' and pd closes. 2.) A bule dos-like screen comes up, but the text is so enlarged that I can't see the entire message. I can make out something like ``physical memory has been dumped.'' At this point I can't return to windows without restarting. When windows comes back it says it has compiled an error report and that I should send it to microsoft so that they can make windows better. Is there any hope for me making Gem more stable on my system? ******************************************************************************* Thanks... ---Brent --------------------------------- Do you Yahoo!? Free online calendar with sync to Outlook(TM).

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Newbie questions...
by Atte André Jensen 11 Jun '03

11 Jun '03

I'm pretty new to audio under linux, but installed Agnula including pd and alsa and the low-latency kernel. For now I starting out slow by focusing on audio and leaving midi for later... But I have some problems: I run pd with "pd -alsa -nomidi" but get: Sample width set to 2 bytes snd_pcm_hw_params_set_format (output): Invalid argument The test tone generated by pd under "Test Audio and MIDI" sounds very distorted. and the peaks under out are showing 60 and 80 (under -40 and -20). Another interresting (?) thing is that before running pd xmms works (with the "ALSA 0.9 output plugin [libALSA.so]" Output Plugin), but after having run pd xmms simply freezes (not crashes or dies, the time just stays on 00:00) and doesn't play anything. Any clues or pointers? Are there any known issues with pd/alsa/agnula? I tried google but the only thing I could find was someone having a similar problem on an ibook... Another question: When I get things going I dream about buying a PIV 2400 laptop for running pd and/or csound (not going to run any seqencers or the like live, simply softsynths controlled by midi controlers) for live performance. How well can I expect this to perform in terms of polyphony and latency with average complicated patches? Thanks in advance -- peace, love & harmony Atte

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Re: [PD] need help, pidip----- object trackingin MPEG-2 file
by supriya kher 11 Jun '03

11 Jun '03

Dear Yves Degoyon, I want to use the pdp_mgrid program of pidip to analyse my mpeg-2 files . Now i have problems installing pidip on my Redhat linux machine 7.3 The softwares I have installed are: 1. aalib1.2 2. ImageMagic-5.5.7 3. ffmpeg 4. pd-0.36-0 5. pdp-0.11.1 Now since for mgrid application i think i need to install pidip-0.11.2 I get an error ImageMagick "checking for XWindowByProperty in -lMagick... no" "configure: error: screen captures requires ImageMagick library!!" I have tested ImageMagick program independently and it is working fine. It executes all the sample programs in ImageMagick perfectly as directed in the installation manual of Image Magick. I am also attaching the "configure.log" file for pidip-0.11.2 in this mail. I would really appreciate your help in this regards. Eagerly waiting for your reply . Thank you for your time and help. With warm regards, Supriya Kher. >From: Yves Degoyon <ydegoyon(a)free.fr> >To: supriya kher <meetsupriya(a)hotmail.com> >CC: PD-list(a)iem.kug.ac.at >Subject: Re: [PD] need help, pidip----- object trackingin MPEG-2 file >Date: Tue, 10 Jun 2003 10:58:07 +0200 > >> >> >>I installed everything. But when I am installing pidip 0.11.2, it is >>giving error by saying "not getting Image Magick library". But I have >>installed Image Magick 5.5.7-9 . > > >from source or from an RPM ? >if from source, did you do the "make install" >and "ldconfig -v" ? besides, is /usr/local/lib >in your library search path in /etc/ls.so.conf ? > >if all of these are ok, send me the "config.log" file >that is in the PiDiP folder... > >> >>Please help me about it. Also I am particularly interested in running >>pd_mgrid.c file, in which it detects motion. Is there any help available >>for running the pidip software i.e. how to specify input parameters and >>all? > >every PiDiP object has a help patch with details >each parameter, it can be found in >/path/to/pidip/doc/help_<objectname>.pd. > >cheers, > >sevy > >ps : might be offline for a while, going to spain.....now!! >arriba !! > _________________________________________________________________ Looking for love? Yearning for friendship? http://www.msn.co.in/Romance/ You're in the right place

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Pd-list June 2003