Pd-list July 2017

pd-list@lists.iem.at

61 participants
131 discussions

Gem Rutt-Etra / pix_data speed?
by Derek Holzer 17 Jul '17

17 Jul '17

Dear PD folks, I'm trying to cook up a Pd/GEM version of the Rutt-Etra scan processor, which sends audio signals to an analog CRT vector monitor/oscilloscope/etc to control the vertical and horizontal positions of its beam, plus its brightness. The video posted here is webcam->MaxMSP->MOTU soundcard->Vectrex console display, using the [jit.matrix] and [jit.peek] objects: https://www.instagram.com/p/BWk5imsAao1 To do this in GEM, I need to read the luma values of the pixels in a video stream according to their X and Y positions with the horizontal and vertical signal ramps which form the video raster on the CRT (using [phasor~] for the vertical scan and a multiplication plus a [wrap~] for the horizontal scan), and send that value out as a third audio signal to control the brightness of the scan line on the monitor. Here is a block diagram of the original Rutt-Etra for the curious: http://iasl.uni-muenchen.de/links/GCA_ill76.png The issue that I have run into so far is that [pix_data] from GEM only responds to control rate messages. PDP has the [pdp_scanxy~] object which does basically what I'm looking for: get luma values at given X Y coordinates of the image based on an audio signal input, and send those values out as an audio signal. I've gotten a rough raster with this already, but for various reasons I would prefer to stay clear of PDP. Can anyone tell me how fast the [pix_data] object can respond? I have been using a [metro] operating at a rate of one bang per sample, and I have set a [block~ 1] in the subpatch doing this analysis. [timer] reports an interval of 0.022 ms between bangs @44.1K, and 1.451 ms between changed pixel values coming from [pix_data]. (Unchanged values are redundant.) In fact, the rate between the metro and the GEM object match until I go under 64 samples, then it becomes erratic. Is a 64 sample block size hardcoded into [pix_data]? Can anyone see how I could get audio rate data out of [pix_data], or if there might be another way to get luma values with an audio signal? Thanks and best wishes! Derek -- derek holzer noise.art.technology http://macumbista.net

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Re: [PD] [PD-announce] pd 0.48-0test1 released
by Dan Wilcox 16 Jul '17

16 Jul '17

Simple answer: looks like the mac folder is missing in the source distribution tarball. > On Jul 15, 2017, at 11:02 AM, pd-list-request(a)lists.iem.at wrote: > > autogen fail on ubuntu linux 16.04 for me : > > chnry@hnry:~/pd/pd$ ./autogen.sh > autoreconf: Entering directory `.' > autoreconf: configure.ac: not using Gettext > autoreconf: running: aclocal --force -I m4/generated -I m4 > autoreconf: configure.ac: tracing > autoreconf: running: libtoolize --copy --force > libtoolize: putting auxiliary files in AC_CONFIG_AUX_DIR, 'm4/config'. > libtoolize: copying file 'm4/config/ltmain.sh' > libtoolize: putting macros in AC_CONFIG_MACRO_DIRS, 'm4/generated'. > libtoolize: copying file 'm4/generated/libtool.m4' > libtoolize: copying file 'm4/generated/ltoptions.m4' > libtoolize: copying file 'm4/generated/ltsugar.m4' > libtoolize: copying file 'm4/generated/ltversion.m4' > libtoolize: copying file 'm4/generated/lt~obsolete.m4' > autoreconf: running: /usr/bin/autoconf --force > autoreconf: configure.ac: not using Autoheader > autoreconf: running: automake --add-missing --copy --force-missing > configure.ac:164: installing 'm4/config/compile' > configure.ac:9: installing 'm4/config/missing' > configure.ac:492: error: required file 'mac/Makefile.in' not found > Makefile.am:45: error: required directory ./mac does not exist > Makefile.am:48: error: required directory ./mac does not exist > asio/Makefile.am: installing 'm4/config/depcomp' > autoreconf: automake failed with exit status: 1 > > > cheers > c -------- Dan Wilcox @danomatika <http://twitter.com/danomatika> danomatika.com <http://danomatika.com/> robotcowboy.com <http://robotcowboy.com/>

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Re: [PD] [PD-announce] pd 0.48-0test1 released
by Dan Wilcox 16 Jul '17

16 Jul '17

> On Jul 15, 2017, at 11:02 AM, pd-list-request(a)lists.iem.at wrote: > > I notice it looks quite differently in Mac OS, like there is a new font, but it still seems it is Monaco. But the font size is smaller and the boxes are thinner and wider. A subpatch will also have an extra space to the right after the text/name of the subpatch. You are seeing the retina rendering with a newer Tk, which still has those font issues as the rendered box size does not quite fit the font. I haven't been able to track down a fix yet. It's weird, though, as this shouldn't be the default yet and Pd should still be using 8.4 which is pixelated on retina screens but has correct object sizing. Miller, how did you build the mac distribution app? > I know there's a Pull Request where we're discussing a cross platform consistency for Pd (DejaVu Sans Mono as default font crossplatform), but it hasn't been merged yet, right? No. There's still the issue of making it work on Windows which has not been resolved yet. I am aware of the TWAPI extension but that is not ideal as Pd shouldn't rely on too many dependencies, especially for only loading a font on one platform. I may be able to get to that in a few weeks.` -------- Dan Wilcox @danomatika <http://twitter.com/danomatika> danomatika.com <http://danomatika.com/> robotcowboy.com <http://robotcowboy.com/>

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Re: [PD] [PD-announce] pd 0.48-0test1 released
by Dan Wilcox 15 Jul '17

15 Jul '17

You can also print the plist contents in Terminal with: # pd defaults read org.puredata.pd.plist & # pd gui defaults read org.puredata.pd-gui.plist > On Jul 15, 2017, at 7:19 PM, pd-list-request(a)lists.iem.at wrote: > > From: "me.grimm" <megrimm(a)gmail.com <mailto:megrimm@gmail.com>> > Subject: Re: [PD] [PD-announce] pd 0.48-0test1 released > Date: July 15, 2017 at 7:19:39 PM GMT+2 > To: Miller Puckette <msp(a)ucsd.edu <mailto:msp@ucsd.edu>> > Cc: pd_list Listserve <pd-list(a)iem.at <mailto:pd-list@iem.at>> > > > yeah sure. old plist: > > // !!! BINARY PROPERTY LIST WARNING !!! > // > // The pretty-printed property list below has been created > // from a binary version on disk and should not be saved as > // the ASCII format is a subset of the binary representation! > // > { audioapi = "4"; > audiobuf = "5"; > "audioindev1" = "0 2"; > "audioindevname1" = "Built-in Microph"; > "audiooutdev1" = "0 2"; > "audiooutdevname1" = "Built-in Output"; > blocksize = "64"; > callback = "0"; > defeatrt = "0"; > flags = ""; > "loadlib1" = "Gem"; > nloadlib = "1"; > noaudioin = "False"; > noaudioout = "False"; > nomidiin = "True"; > nomidiout = "True"; > npath = "1"; > "path1" = "/Users/megrimm/Library/Pd/Gem"; > rate = "44100"; > standardpath = "1"; > verbose = "0"; > zoom = "1"; > } -------- Dan Wilcox @danomatika <http://twitter.com/danomatika> danomatika.com <http://danomatika.com/> robotcowboy.com <http://robotcowboy.com/>

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timbreID version 0.7 testing
by William Brent 13 Jul '17

13 Jul '17

Hi all, I've finally gotten around to making some improvements and updates to the timbreID library, so I'd be grateful for any feedback and bug reports at this point. You can currently get source code and Linux/Mac/Windows binaries via deken. Below is a short list of the main additions. One major point is that I decided to use FFTW this time around. I've managed to get that working fine on Linux/Mac/Windows, but it would be great to get any advice on how to minimize the trouble that that dependency brings up. Makefile edits and suggestions are also very welcome, especially aspects that involve linking to FFTW on these 3 different platforms. UPDATES: Bark-based versions of all spectral features (barkSpecCentroid~, barkSpecSpread~, etc.) A cepstrum-based pitch tracker (cepstrumPitch~) An attack time analysis object (attackTime~) Spectral slope analysis objects (specSlope~, barkSpecSlope~) A waveform slope analysis object (waveSlope~) A DCT object (dct~) Various simple time-domain objects (peakSample~, minSample~, maxSample~, minSampleDelta~, maxSampleDelta~) Various conversion objects (bin2freq, bark2freq, etc.) Additional [tabletool] methods (clip, round, ceiling, floor, maximum magnitude, find zero crossings, mtof, ftom, dbtorms, rmstodb, bin2freq, freq2bin, bark2freq, freq2bark, auto-fit boundaries) Various improvements to the database/classification object [timbreID] There is also an updated examples package, which mainly addresses the change in functionality of [timbreID]'s fourth outlet, but has significant improvements for the concatenative and timbre space examples. It also includes a new example directory for audio segmentation. You can get that at http://williambrent.conflations.com/pages/research.html#timbreID. I've also set up a GitHub repo at wbrent/timbreID, which has everything (source, binaries, example patches). Thanks and feel free to write me on or off list. William -- William Brent www.williambrent.com “Great minds flock together” Conflations: conversational idiom for the 21st century www.conflations.com

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Re: [PD] [PD-dev] text edit window title
by Christof Ressi 13 Jul '17

13 Jul '17

hi, for [text define] it would be really useful to show the name of the text buffer! > Gesendet: Donnerstag, 13. Juli 2017 um 02:50 Uhr > Von: "Dan Wilcox" <danomatika(a)gmail.com> > An: pd-dev(a)lists.iem.at > Betreff: [PD-dev] text edit window title > > I've noticed when opening the context of the text family of objects (qlist, text, & textfile), the window title has what looks like dummy strings: "myname: text". > > I think it would be more useful if the "myname" was the name of the parent patch and the "text" part was the name of the calling object. > > So something like: mypatch.pd: qlist > > That would at least help in differentiating the windows beyond their contents. > > I did some poking around and can set the filename by changing the sys_vgui call in textbuf_open: > > sys_vgui("pdtk_textwindow_open .x%lx %dx%d {%s: %s} %d\n", > x, 600, 340, "myname", "text", > ... > > to > > sys_vgui("pdtk_textwindow_open .x%lx %dx%d {%s: %s} %d\n", > x, 600, 340, x->b_canvas->gl_name->s_name, "text", > > I'm not sure how to replace the "text" dummy with the parent text object type though. > > -------- > Dan Wilcox > @danomatika <http://twitter.com/danomatika> > danomatika.com <http://danomatika.com/> > robotcowboy.com <http://robotcowboy.com/> > > > > _______________________________________________ > Pd-dev mailing list > Pd-dev(a)lists.iem.at > https://lists.puredata.info/listinfo/pd-dev >

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Filterview, filterplot, filtergraph
by jmejia＠anestheticaudio.com 12 Jul '17

12 Jul '17

Frequently when using hcs' filterview object - I get tcl errors and the gui locks up. I haven't successfully found a logic or repeatability to them - but they happen a lot. (OSX, vanilla 0.47.1) It's a great object besides that and I'm wondering what else might be out there. I've been using Maelstrom's excellent filterplot.mmb abstraction(https://github.com/dotmmb/mmb) - which is really almost enough, although graphical/mouse input would be nice. In general this is an amazing collection of abstractions! Is there anything else that deals with graphical input and or output of filter coefficients for biquad~? Alex - any cyclone stuff in the works that might be like filtergraph in max? Thanks! -Jesse

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[pd] compiling gendy~ for libpd-ios
by Orestis Papadopoulos 11 Jul '17

11 Jul '17

Hi Everyone, I’m looking to compile an external that’s using the flext <https://grrrr.org/research/software/flext/> development layer. It’s called gendy <https://github.com/ssfrr/gendyflext>~ According to this wiki <https://github.com/libpd/libpd/wiki/Adding-Pure-Data-external-libraries-to-…> I need to compile it as a static library that will be used inside my xcode project. The only thing I was able to do so far was to compile it as a dynamic library for macOS. Everything works great in that executable. But I can’t get it to build in Xcode because I think I’m doing something wrong with flext. Thanks, Orestis

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Compiling a flext external as a static library to be used by libpd in iOS
by Orestis Papadopoulos 11 Jul '17

11 Jul '17

Hi Everyone, I’m looking to compile an external that’s using the flext <https://grrrr.org/research/software/flext/> development layer. It’s called gendy <https://github.com/ssfrr/gendyflext> I need to compile it with a target architecture of armv7 and to compile it as a static library. The only thing I was able to do so far was to compile it as a dynamic library for macOS. Everything works great in that executable. So far I’m pretty much familiar with how flext builds externals and I have managed to try some different things by editing its buildsys/config- files. But when I change the arch to armv7 my compilation fails. |/usr/include/sys/cdefs.h:707:2: error: Unsupported architecture| My config-mac-pd-gcc looks like this: |# where is the PD installation including source code? # (this should point to the main folder, which has a "src" (PD Vanilla) or "include" (PD extended) subfolder) PDPATH=/Applications/Pd-0.47-1.app/Contents/Resources # where is the PD executable? PDBIN=$(PDPATH)/bin/pd ############################################################### # prefix for flext installation # headers are in $(FLEXTPREFIX)/include/flext # libraries are in $(FLEXTPREFIX)/lib # build system is in $(FLEXTPREFIX)/lib/flext FLEXTPREFIX=/usr/local ############################################################### # where should the external be built? OUTPATH=pd-darwin # where should the external be installed? INSTPATH=$(PDPATH)/extra ############################################################### # STK (synthesis tool kit) support # http://ccrma.stanford.edu/software/stk # where to find the STK header files (e.g. stk.h) #STK_INC=/usr/local/include/stk # where to find the STK library (normally libstk.a) # (comment out STK_LIB if you don't use STK) #STK_LIB=/usr/local/lib/libstk.a ############################################################### # SndObj support # http://music.nuim.ie//musictec/SndObj # where to find the SndObj header files (e.g. sndobj.h) #SNDOBJ_INC=/usr/local/include/sndobj # where to find the SndObj library (normally libsndobj.a) # (comment out SNDOBJ_LIB if you don't use SndObj) #SNDOBJ_LIB=/usr/local/lib/libsndobj.a ############################################################### # make flags (e.g. use multiprocessor) MFLAGS=-j 2 # user defined compiler flags UFLAGS += # user defined linker flags LDFLAGS += # user defined optimization flags OFLAGS += # user defined debugging flags DFLAGS += # architecture-specific flags (optional) UFLAGS_ppc += -faltivec OFLAGS_ppc += DFLAGS_ppc += UFLAGS_i386 += OFLAGS_i386 += DFLAGS_i386 += UFLAGS_x86_64 += OFLAGS_x86_64 += DFLAGS_x86_64 += # cross-compilation (optional) ARCH=armv7 # ppc ppc64 # SDK for 10.6 #OSXSDK=/Developer/SDKs/MacOSX10.6u.sdk | I would appreciate it if anyone who’s done something similar before can help! Thanks, Orestis

1 0

Re: [PD] Filterview, filterplot, filtergraph
by Dan Wilcox 10 Jul '17

10 Jul '17

> Frequently when using hcs' filterview object - I get tcl errors and the gui locks up. I haven't successfully found a logic or repeatability to them - but they happen a lot. (OSX, vanilla 0.47.1) What are the errors? It can probably be fixed... -------- Dan Wilcox @danomatika <http://twitter.com/danomatika> danomatika.com <http://danomatika.com/> robotcowboy.com <http://robotcowboy.com/>

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Pd-list July 2017