Pd-dev August 2014

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Number of objects in pd-extended versus pd vanilla
by Edgar Berdahl via Pd-dev 25 Sep '14

25 Sep '14

Hello, Does anyone know how many objects there are in pd extended versus in pd vanilla? Best, Edgar

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pd-extended installer puts libraries in system32 folder. Is it a bad idea?
by Rafael Vega 25 Sep '14

25 Sep '14

Hi. First post here :) I just spent a couple of hours figuring out why a c++ program I compiled on windows (not my main OS) would not run. I am linking my program with libstdc++ and compiling with the MinGW toolset. Now, I have pd-extended installed on the same machine and when it installed, it put it's own copy of libstdc++ in c:\WINDOWS\system32. The way Windows loads libraries is: first looks on the directory where the exe is, then it looks on the system folder and then it looks on the PATH. The problem with my program was, then, that the MinGW linker did not like the version of libstdc++ put in the system folder by pd-extended installer. Uninstalling pd-extended "fixed" the issue. So, I just want to throw this out there: Should the pd-extended installers avoid putting libraries on the system folder to avoid this kind of confusion? My 2 cents. Thanks! :) -- Rafael Vega email.rafa(a)gmail.com

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[pure-data:bugs] #1154 iemlib/mp3play~ missing or forgot to remove its help file
by teo8976 24 Aug '14

24 Aug '14

--- ** [bugs:#1154] iemlib/mp3play~ missing or forgot to remove its help file** **Status:** open **Group:** v0.43 **Created:** Sun Aug 24, 2014 01:17 AM UTC by teo8976 **Last Updated:** Sun Aug 24, 2014 01:17 AM UTC **Owner:** nobody Pd version 0.43.4-extended ubuntu 14.04 In the iemlib folder there's a mp3play~-help.pd help file, but there's no such thing as an mp3play~ object or abstraction either in iemlib or elsewhere. So either the external is missing, or, if it has been purposefully removed, then somebody forgot to remove the help file. --- Sent from sourceforge.net because pd-dev(a)lists.iem.at is subscribed to https://sourceforge.net/p/pure-data/bugs/ To unsubscribe from further messages, a project admin can change settings at https://sourceforge.net/p/pure-data/admin/bugs/options. Or, if this is a mailing list, you can unsubscribe from the mailing list.

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replacing obsolete email address
by Claude Heiland-Allen 22 Aug '14

22 Aug '14

Hi devs, Please can someone replace my obsolete email address in svn trunk? find -not -path "*.svn*" -type f -print0 | \ xargs -0 sed -i "s|claudiusmaximus@goto10.org|claude@mathr.co.uk|g" Should just be some stuff in pdlua and Gem recursion tutorial. Thanks, Claude -- http://mathr.co.uk

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[pure-data:patches] #529 Fixes for menu layout glitches in Tk Cocoa
by Kevin Walzer 21 Aug '14

21 Aug '14

--- ** [patches:#529] Fixes for menu layout glitches in Tk Cocoa** **Status:** open **Group:** bugfix **Labels:** pd-extended tk-cocoa **Created:** Thu Aug 21, 2014 12:55 AM UTC by Kevin Walzer **Last Updated:** Thu Aug 21, 2014 12:55 AM UTC **Owner:** Hans-Christoph Steiner The attached patch improves the layout of menus in Pd-extended when run on the Cocoa version of Tk/Mac. Specifically: 1. Fixes the placement of an "Apple" menu at the end of the main menubar; this is actually not needed at all because other procedures (cf. tkAboutDialog) do the right thing already. 2. Maps the display of the help browser to Tk's native help command on the Mac via tk::mac::ShowHelp. 3. Fixes the graying out of the help menu when the help browser is displayed by removing an unnecessary procedure. --- Sent from sourceforge.net because pd-dev(a)lists.iem.at is subscribed to https://sourceforge.net/p/pure-data/patches/ To unsubscribe from further messages, a project admin can change settings at https://sourceforge.net/p/pure-data/admin/patches/options. Or, if this is a mailing list, you can unsubscribe from the mailing list.

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van der Pol oscillator external
by Alexandros Drymonitis 20 Aug '14

20 Aug '14

I'm trying to translate CSound code from the FLOSS manuals for a van der Pol oscillator to make a Pd external. The CSound code is here http://en.flossmanuals.net/csound/g-physical-modelling/ (you have to scroll down till you reach the van der Pol section). I think I get what's going on there, but the results I get when writing the output to an array, are not the same as the ones provided in th FLOSS manuals. Here's my perform routine: t_int *vanDerPol_perform(t_int *w) { // Copy the object pointer t_vanDerPol *x = (t_vanDerPol *) (w[1]); // Copy signal vector pointers t_float *frequency = (t_float *) (w[2]); t_float *factor = (t_float*) (w[3]); t_float *excitor_freq = (t_float*) (w[4]); t_float *excitor_amp = (t_float*) (w[5]); t_float *output = (t_float *) (w[6]); // Copy the signal vector size t_int n = w[7]; // Dereference components from the object structure float twopi = x->x_twopi; float sr = x->x_sr; float si = x->x_si; float si_factor = x->x_sifactor; float phase = x->x_phase; float step = (float) EXCITOR_STEPSIZE; // Local variables float phase_local; float drive_sine; // sinewave to excite the oscillator // van der Pol samples float aa; float av = 0; float ax = 0; // damping factor float c; // Perform the DSP loop while(n--){ // excitor code si = *excitor_freq++ * si_factor; phase_local = phase / step; drive_sine = cos(phase_local * twopi) * *excitor_amp++; // van der Pol code c = 2 - 2 * cos(*frequency++ * twopi / sr); aa = (-c) * ax + *factor++ * (1 - ax * ax) * av; av += aa; ax = ax + av + drive_sine; *output++ = av; // update phase phase += si; while(phase > step) phase -= step; while(phase < 0) phase += step; } // Update object's variables x->x_phase = phase; x->x_si = si; // Return the next address in the DSP chain return w + 8; } In the FLOSS manuals it says that it is excited by a sine wave oscillator, so this is what I do in the code above, but I don't know what I'm doing wrong. Are there specific values I should set for frequency, excitation frequency, excitation amplitude and damping? The math is over my head to be honest, so I'm trying to copy an applied example and this code looks much like the CSound's code...Can someone give some insight?

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Pd-dev August 2014