Pd-list October 2008

pd-list@lists.iem.at

109 participants
170 discussions

Scope of [block~] and [switch~]
by David F. Place 22 Oct '08

22 Oct '08

Hi, I am trying to understand oversampling to eliminate foldover from my patches. In the help file for block~ we read: The block~ and switch~ objects set the block size, overlap, and up/down-sampling ratio for the window. (The overlap and resampling ratio are relative to the super-patch.) This is confusing to me. If the overlap and resampling ratio are relative to the super-patch, then shouldn't block~ set the block size, overlap, and up/down-sampling ratio for the window and all its sub windows? (sub-patches and abstractions) Is that how it works, in fact? If not, do you have to include all of the audio rate objects at the same level in a patch without using sub-patches or abstractions? Thanks for reading. Cheers, David

5 14

adding 'debian' folder to trunk
by Hans-Christoph Steiner 22 Oct '08

22 Oct '08

Anyone have a problem if we add a 'debian' folder to the trunk? That's the standard debian setup, then it would be possible to build .debs for all the libs by downloading trunk and running the build in the nromal way. For Pd itself, there probably should be a pd/debian folder. Ideally Miller would include Günter's debian folder that he uses for the official debian package. .hc ------------------------------------------------------------------------ ---- As we enjoy great advantages from inventions of others, we should be glad of an opportunity to serve others by any invention of ours; and this we should do freely and generously. - Benjamin Franklin

2 2

dirty flag + donecanvasdialog = false
by João Pais 22 Oct '08

22 Oct '08

Hi, I was working on a dynamic GUI abstraction that rescales itself when created, and noticed that donecanvasdialog makes the patches go dirty. since these abs go dirty at time of creation, they remain dirty until the main patch eventually closes. That creates problemas, because when the main patch is closing, it asks if changes should be saved as many times as the abstractions were used. And if changes aren't saved, pd just crashes/hangs up indefinitely, until forced to shut down. I don't know all uses of donecanvasdialog, but if one of its uses is to allow for dynamic GUI patches to be used, it might make sense to remove the dirty flag activation. That might be easier to do than add another choice in the canvas properties, so that dirty flag doesn't get activated (I guess). Best, JoÃ£o Pais -- Friedenstr. 58 10249 Berlin Deutschland Tel +49 30 42020091 Mob +49 162 6843570 jmmmpais(a)googlemail.com skype: jmmmpjmmmp http://www.puredata.org/Members/jmmmp IBM Thinkpad R51, XP, Ubuntu GG Pd-Ext-0.39-2-t5, Pd Van 0.40-t2

1 0

pdp_v4l2 with MacBook Pro 3rd iSight on Ubuntu (success)
by Hans-Christoph Steiner 22 Oct '08

22 Oct '08

Hey, Sergi and I just figured out how to use the macbook pro iSight camera with pdp_v4l2, so I thought I just post here how for the record: By default the iSight with pdp_v4l2 seems to use MJPEG colorspace, so I was getting a "pdp_v4l2: unsupported color model" error. We sent the [format 1( to get the YUYV space, as reported in the Pd window, and it works! .hc ------------------------------------------------------------------------ ---- I spent 33 years and four months in active military service and during that period I spent most of my time as a high class muscle man for Big Business, for Wall Street and the bankers. - General Smedley Butler

5 6

d-triad, d-note, and d-modes
by Damian Stewart 22 Oct '08

22 Oct '08

hey list, here's a collection of pure-Pd objects that enable some easy harmony computation. first there's [d-modes], which, although it uses a slightly weird and clunky outlet interface, can give you entire scales based on any root note in all of the principal musical modes: ionian, dorian, phrygian, lydian, mixolydian, aeolian, locrian, pentatonic, pentatonic altered, and in sen. next, there's [d-note], which converts a human-readable note representation like 'C 3' into a MIDI note like 60. last, there's [d-triad], which spits out lists of MIDI notes to construct chords (not just triads). no longer do you need to remember the difference between minor 7 and minor major 7, nor to remember all of your key signature sharps and flats. just send it a sequence of messages like [mode mixolydian, root C 3, inversion 2, m7M ( and it will spit out a list of MIDI note values to play a second-inversion minor major 7 chord with root C 3 in the mixolydian mode. pretty handy? i think so. also included are [d-default] and [d-default-symbol] which allow nice handling of default creation arguments when not all creation arguments are specified, [d-smooth~] which is just a [line~] wrapped up nice, and [g-date5] which is a five-output pure-pd [demux] replacement. everything except the [d-smooth~] is documented with help patches. comments, as always, appreciated. let me know if you find it useful. released as GPLv3. chur d -- damian stewart | skype: damiansnz | damian(a)frey.co.nz frey | live art with machines | http://www.frey.co.nz

1 0

pd in 64 bit machine
by Ricardo Dueñas Parada 21 Oct '08

21 Oct '08

Hi everyone, I recently got a new 64 bit machine and I want to know if there are real advantages by installing a 64 bit OS. All I want to do in that machine is to work with Ardour, pd, and maybe a copule effect-boxes for live signal processing and recording. I didn´t see 64 bits packages on puredata.info, why is that? Is there any chance I can help to provide those packages? Any comment is appreciated. _ricardo

2 1

Re: [PD] live distro with pd extended
by aymeric mansoux 21 Oct '08

21 Oct '08

Hey Hans, > > first check, what frank suggested. then, if you still are missing > > something, you could try to simply copy the missing libraries from a > > pd-extended archive's /extra do the <pd-install>/extra on your > > pure:dyne. > > Or even better, just copy the whole folders, then the namespace > prefixes and library loading can work too. If not, you can do > [declare -path] (right? or that broken). > > Ideally, pure:dyne would use the same library layout as Pd-extended > so that patches will be compatible. We talked about it in the past. > Otherwise, we get yet another distro/file layout working against us > to the struggle for broadly compatible patches. that sounds very dramatic ;) We did switch to this layout a while ago, indeed after some talks around this issue, the only difference is that we use Pd vanilla and we package externals separately and we make everything possible to have 100% conform Debian packages. We start to have a pretty good collection now. pd-abstractions - A collection of Puredata abstractions pd-arduino - arduino firmware for puredata pd-bassemu - bassemu for Pd pd-comport - comport - PD External for the serial Ports pd-container - C++ STL containers for Pd pd-creb - an extension library for Pd pd-cxc - cxc externals for Pd pd-dynext - dynamic object management for PD pd-flext - flext for Pure Data pd-gem2pdp - bridge between Gem and PDP externals for Pd pd-gem - Graphics Environment for Multimedia, for Pd pd-gem-source - Graphics Environment for Multimedia, for Pd, sources pd-ggee - externals collection for Pd pd-gridflow - multi-dimensional dataflow processing for Pd pd-hid - hid library for Pd pd-iemlib - iemlib for Pure Data pd-iemmatrix - matrix processing library from IEM, for Pd pd-libstdcpp - Pd library to link libstdc++ pd-lyonpotpourri - The Pd external collection from Eric Lyon. pd-mapping - pd mapping external pd-maxlib - general, analysis and composition objects for Pd pd-mixed - Pd externals from miXed pd-motex - motex externals for pd pd-mrpeach - Pd externals from mrpeach pd-msd - msd library for Pd pd-oscbank - oscbank~ external for Pd pd-osc - OSC for Pure Data pd-pdlua - a Lua embedding for Pd pd-pdp - a packet processing library for pure data pd-pdp-opencv - OpenCV bindings for Pd via PDP pd-pidip - additional video objects for PDP for puredata pd-pix-opencv - OpenCV bindings for Pd via GEM pd-pool - a hierarchical storage object for PD pd-py - py/pyext - python script objects for PD pd-sigpack - signal object library for Pd pd-unauthorized - Unauthorized Externals for Pd pd-vasp - vasp for Pd pd-vbap - vbap for Pd pd-xsample - xsample library for Pd pd-zexy - Addon library for Pd Anyone who wants to try: deb http://debian.goto10.org/debian/ lenny main contrib non-free deb-src http://debian.goto10.org/debian/ lenny main contrib non-free Help and suggestions always welcome! a.

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block~ vs. freeverb~
by David F. Place 20 Oct '08

20 Oct '08

Hi, Now that I have upsampling working, I hear that the output of freeverb~ is completely different when it is computed in an upsampled environment. There's hardly any reverb effect at all. Any ideas? Cheers, David

2 4

Building Externals
by Alex 20 Oct '08

20 Oct '08

Can someone tell me how to build the new svn externals? I downloaded from the svn: https://pure-data.svn.sourceforge.net/svnroot/pure-data/trunk/externals I run make mrpeach [I'm only worried about this external at this time] and I get: 09:20:13 $ make mrpeach Makefile:27: /packages/Makefile.buildlayout: No such file or directory grep: /sigpack/source/sIgpAck.c: No such file or directory grep: /zexy/src/zexy.h: No such file or directory make: *** No rule to make target `/packages/Makefile.buildlayout'. Stop. The README says to go here: http://puredata.org/docs/developer/ And there I see some information about "Directory Layout for Developers" (but about the old cvs repo) and some other stuff, but no info about how to simply build the externals using make. Is there no step-by-step list of instructions? It seems to me that in an effort to make things 'easy' and 'centralized' this has actually become more complicated and less easy. It would be easier for me if I could just dl the externals I want, and run 'make' in their respective directories [maybe editing the destination path before I do that]. A larger build script could simply export some environment variable(s) to set global defaults for these paths [if a sane, standard makefile is given to all developers to work from]. Maybe I'm missing some vital information though? -Alex

7 12

'pure' pd DSP abstractions wanted!
by Jamie Bullock 20 Oct '08

20 Oct '08

Hi everyone, I'm looking self-contained DSP abstractions that only use Pd - no externals. Things like reverbs, different types of filters, delays, a pitch shifter, harmonizer -- a kind of basic 'FX' toolbox. I'm thinking very much along the lines pdmtl/fx.* but without the external dependencies. Thoughts I've had so far: - Pull stuff out of the Pd help patches - Pull stuff out of the list archives - Remove the dependency requirements from pdmtl/fx.* But, maybe someone has a nice 'set' of such abstractions sitting on their hard drive, that they wouldn't mind releasing into the public domain -- or under some permissive license. TIA, Jamie -- www.postlude.co.uk http://www.linkedin.com/in/jamiebullock

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Pd-list October 2008