Pd-dev February 2004

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Re: [PD] [gem] audio waveform display
by zack 28 Feb '04

28 Feb '04

Does anyone have any ideas/leads on how to display a real-time audio waveform in the GEM environment? thanks, Zack

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print in pyext
by Sukandar Kartadinata 26 Feb '04

26 Feb '04

Hi list, I have encountered a strange behaviour with multiple outlets in pyext in combination with 'print' commands from within the Python code. First, however, I'd like to thank Thomas Grill (and whoever else might be involved) for this wonderful extension to pd - it's really a flashback to those days when Pyrite became available for MAX. And much more! now to illustrate the problem here's the pd as well as the py code: sequence.pd: #N canvas 0 0 454 304 12; #X obj 168 131 print >>>; #X obj 125 155 print >>; #X obj 83 103 pyext sequence test; #X msg 125 74 bang; #X connect 2 1 1 0; #X connect 2 2 0 0; #X connect 3 0 2 1; sequence.py: try: import pyext except: print "ERROR" class test(pyext._class): _inlets=3 _outlets=3 def bang_1(self): print "pyext entered ----------------------------" print "something else" self._outlet(2,'output2') self._outlet(3,'outlet3') The problem is that sometimes when [bang] is clicked the outlet 3 doesn't fire. One of the following clicks however will actually "retrieve" that lost message, i.e. outlet 3 fires twice. Sometimes one has to click a 100 times on bang before it happens, sometimes one has to click very fast, sometimes the "clicking rhythm" has to be changed, sometimes though it happens right on the first click after the patch is loaded. Removing the second print command results in far less dropouts, but they still happen. More prints make it worse. I am not sure wether it happens with less outlets. Of course, I have gotten rid of all print commands for the moment, but I'd be still curious to know wether this is a known problem and if there might be a fix. Or, maybe, you can't reproduce it, like with my strange crashing-on-floats-bug I reported a while ago.... (which still persists btw) Thanks, Sukandar

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bare bones autoconf/automake scripts for PD
by august 26 Feb '04

26 Feb '04

Hey there, anyone have a barebones configure.in file for use with PD? How about one for use with FLEXT? thanks -august.

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flext and stk
by Georg Holzmann 25 Feb '04

25 Feb '04

Hello! I tried to make some externals with flext and the STK lib for C++. But when I build these externals (for example the stk1 and stk2 from the flext-tutorial by Thomas Grill) I everytime got the same mistake (with MSVC++ 6 on WinXP): Linking... LINK : fatal error LNK1104: cannot open file "stk_d.lib" Error executing link.exe. But I cannot find the file "stk_d.lib" and it isn't in the package from the stk-homepage. Thanks for every help, LG Georg -- GMX ProMail (250 MB Mailbox, 50 FreeSMS, Virenschutz, 2,99 EUR/Monat...) jetzt 3 Monate GRATIS + 3x DER SPIEGEL +++ http://www.gmx.net/derspiegel +++

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new tcl is 25% faster...
by Josh Steiner 25 Feb '04

25 Feb '04

i was just looking at the tcl.tk site and noticed tcl 8.4.4 looks like its around 25% faster than 8.3.5. anyone happen to know where miller is getting wish83.exe? i'd like to try out 8.4.4 to see if it helps my performance environment noticably. anyone experimented with 8.4.4 yet? i wonder if its fully compatable... http://wiki.tcl.tk/1611.html -- ________________________________________________________________ live experimental electronic music -- http://bluevitriol.com independent u.s. drum'n'bass -- http://vitriolix.com

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Graphical PD externals
by B. Bogart 24 Feb '04

24 Feb '04

Hello All, I'm still on that slow process of learning how one writes graphical externals. I was wondering if anyone has a very simple graphical external example? Perhaps something that just creates a label widget, perhaps with a property dialog to change the text therin? I'm currently looking at the simplest graphical things I can find, which are the iemgui objects, bang etc.. Are these now internals? Are they written differently than if they were externals? Thanks all. Ben

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DSP beginners code
by Matthew Laughlin 24 Feb '04

24 Feb '04

Dear everyone, I am trying to develop a granular synthesis object in C for PD. I have finished the online HOWTO for making externals which essentially finished at the DSP part. Unfortunately I have nery little clue as to programming DSP code, and I was wondering if anyone had any good links to places I could start to learn it or book recommendations for starting into this area. I have looked at the CSound sources for their granular synth opcodes, but I don't understand them. Thanks very much in advance, Matthew _________________________________________________________________ Express yourself with cool emoticons - download MSN Messenger today! http://www.msn.co.uk/messenger

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MIDI output devices
by Padraig Kitterick 23 Feb '04

23 Feb '04

Hi all, I am working on a project for a course Im doing which uses PD (in windows) to program a device which understands system exclusive MIDI messages. After discovering that sysex out doesn't seem to be fully implemented under windows yet I went ahead and wrote an external to do it. All is working fine but at the moment I have to hard-code the midi device number into the code. What I would like to be able to do is to use the device which is selected in PD's midi settings. I've searched the lists but can't seem to find anything related to this. Could anyone tell me how I do this? p.s. just in case anyone is wondering why I don't just patch the PD source tree (which would be easier of course): I don't want people to have to use a custom build. I would prefer that they can just link in an external at run-time. Also, this is just a small part of a larger project which we want packaged in one external. Many thanks in advance, Padraig Kitterick

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Re: flext.dsp
by Thomas Grill 23 Feb '04

23 Feb '04

> I may be misunderstanding how this distribution is supposed to function, but I have not been able to find a flext.dsp in the newest pd/windows distribution. I did find it by going back through the history, it seems to have disappeared circa 0.4.1. Maybe this is intentional... or it is assumed that one would have older installations previously installed... > > Can you explain? Hi Christian, this is intentional. First of all, i'm no longer using and maintaining .dsp files since i changed to VC.NET, which has .vcproj files. Second, the Visual Studio project files cannot easily be configured, since the necessary switches are hidden in many property sheets. Therefore, the preferred method is to use the provided make system. For Windows (and VC++) edit config-pd-msvc.txt to match your setup, and then, from the command prompt of the VC system, run build-pd-msvc.bat. For other platforms and/or compilers similar files are to be used. best greetings, Thomas

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Re: [PD] Flext (or lack of it)
by Marc Lavallée 22 Feb '04

22 Feb '04

Hi Steven. Let's continue this discussion on the dev list... On Sat, Feb 21, 2004 at 04:50:49PM -0800, stevenyi wrote: > You can use cygwin to compile without requiring cygwin.dll by using > the commandline flag -mno-cygwin. This ends up using native libraries, > similarly to how mingw does. That's good news, but first I need to compile flext (0.4.5). I hope you or Thomas can help. Here's the problem: $ make -f makefile.pd-cygwin g++ -c -O6 -DFLEXT_SYS=2 -mcpu=pentium4 -msse -I/cygdrive/c/pd/src -Isource source/flbase.cpp -o pd-cygwin/flbase.o In file included from /usr/include/c++/3.3.1/i686-pc-cygwin/bits/gthr-default.h:37, from /usr/include/c++/3.3.1/i686-pc-cygwin/bits/gthr.h:98, from /usr/include/c++/3.3.1/i686-pc-cygwin/bits/c++io.h:37, from /usr/include/c++/3.3.1/bits/fpos.h:44, from /usr/include/c++/3.3.1/iosfwd:49, from /usr/include/c++/3.3.1/bits/stl_algobase.h:70, from /usr/include/c++/3.3.1/bits/stl_tree.h:86, from /usr/include/c++/3.3.1/map:66, from source/flclass.h:23, from source/flext.h:66, from source/flbase.cpp:17: /cygdrive/c/pd/src/pthread.h:260: error: redefinition of `struct timespec' /usr/include/sys/types.h:100: error: previous definition of `struct timespec' /cygdrive/c/pd/src/pthread.h:482: error: conflicting types for `typedef struct pthread_t_*pthread_t' etc... So there's a conflict between the pthread definitions of Cygwin and PD. How can I fix this problem? B.T.W., I run the Gnome desktop under Cygwin, this is very cool! -- Marc

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Pd-dev February 2004