Pd-list September 2008

pd-list@lists.iem.at

108 participants
165 discussions

vanilla-knob
by Steffen Leve Poulsen 01 Oct '08

01 Oct '08

Hi Made an attemp to make a knob in Pd-vanilla. might be usefull with endless rotary enconders. It has a numbox underneath, so you can shift>drag and use negatives. mvh/Stef #N canvas 50 375 402 315 10; #X floatatom 104 117 5 0 0 0 - - -; #X obj 104 161 outlet; #X obj 102 102 cnv 15 49 49 empty empty empty 20 12 0 14 -233017 -66577 0; #N canvas 0 0 486 336 \$0-draw 0; #X obj 43 23 cnv 1 3 3 empty empty empty 20 12 0 14 -24198 -66577 0 ; #X obj 42 23 cnv 1 3 3 empty empty empty 20 12 0 14 -24198 -66577 0 ; #X obj 42 24 cnv 1 3 3 empty empty empty 20 12 0 14 -24198 -66577 0 ; #X obj 42 25 cnv 1 3 3 empty empty empty 20 12 0 14 -24198 -66577 0 ; #X obj 42 26 cnv 1 3 3 empty empty empty 20 12 0 14 -24198 -66577 0 ; #X obj 42 27 cnv 1 3 3 empty empty empty 20 12 0 14 -24198 -66577 0 ; #X obj 42 28 cnv 1 3 3 empty empty empty 20 12 0 14 -24198 -66577 0 ; #X obj 41 29 cnv 1 3 3 empty empty empty 20 12 0 14 -24198 -66577 0 ; #X obj 41 30 cnv 1 3 3 empty empty empty 20 12 0 14 -24198 -66577 0 ; #X obj 41 31 cnv 1 3 3 empty empty empty 20 12 0 14 -24198 -66577 0 ; #X obj 40 32 cnv 1 3 3 empty empty empty 20 12 0 14 -24198 -66577 0 ; 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3 3

Re: [PD] biquad~ with elementary filters [was: Re: dinosaurs ...]
by Damian Stewart 30 Sep '08

30 Sep '08

Charles Henry wrote: >> wow - this is a bit above my head at the moment. i can go from equations in >> C to pd, but only if i have the equations themselves to look at... > > It's easy. I've done it half a dozen times. For example, > http://lists.puredata.info/pipermail/pd-list/2007-01/046315.html > > Look at the help file for biquad~ in Pd. The equations are there. last time i looked at the equations in biquad~'s help patch, my brain melted. > Here's the transfer function: > Y/X=(ff1 + ff2*z^(-1) + ff3*z^(-2))/(1 - fb1*z^(-1) - fb2*z^(-2)) > > or > > Y/X=(ff1*z^2 + ff2*z^1 + ff3)/(1*z^2 - fb1*z^1 - fb2) > > All that you need to do to find the complex zeros is to use quadratic formula > on the numerator (ff1*z^2 + ff2*z^1 + ff3) > > and do the same to find the complex poles on (1*z^2 - fb1*z^1 - fb2) dude, that's not 'easy'. i can barely remember how the quadratic formula works with pen and paper, let alone in C, and let alone to the point where i could confidently transfer from C to Pd. i'd have no idea where the bugs were... and indeed, no idea and once i've got these 'complex zeros' and 'complex poles' i don't have any idea how to plug them into czero~ and cpole~ (or is it rzero~ and rpole~?) objects. -- damian stewart | skype: damiansnz | damian(a)frey.co.nz frey | live art with machines | http://www.frey.co.nz

6 18

pduino and xbee
by nick burge 30 Sep '08

30 Sep '08

Hello list. Does anyone know if pduino/firmata is compatible with using the xbee shield on an arduino?? I know the arduino for pd input system works with it. But its only good for analog input. thanks. Nick Burge.

2 2

pdextended video tutorial (installation)
by patrick 30 Sep '08

30 Sep '08

greetings, i recorded the process of installing pd extended on linux, mac and windows. it's uploaded on puredata.info: http://puredata.info/Members/patrick in flv format (flash video). it should open with VLC. anyone prefer another format like ogg / theora? linux http://tinyurl.com/62d7en mac http://tinyurl.com/6dm85b windows http://tinyurl.com/5a4r6d if the video looks ok to you guys, should we add a link on puredata.info/downloads or maybe in documentation and / or http://en.flossmanuals.net/puredata? tutorial video for pdmtl are coming soon. pat

2 2

firmata sporadic at enabling analog ins?
by Spencer Russell 30 Sep '08

30 Sep '08

I've got an arduino with 5 capacitive distance sensors plugged into the analog ins. I just flashed the newest firmata-standard, and now things aren't working as expected. the first thing I do is connect to /dev/ttyUSB0, which works fine. Then I send the messages [analogIns 0 1( [analogIns 1, 1( etc... to the arduino object. The funny thing is that any given input only seems to turn on about 1 in 4 times I send the message. Once it's on PD receives the data like a champ. I tried adding delay between connecting via serial and turning on the inputs, but it didn't seem to help even when adding a 2 second delay after the connection, and 500ms delay between turning on each input. thanks, spencer

2 2

Re: [PD] biquad~ with elementary filters [was: Re: dinosaurs ...]
by Martin Peach 30 Sep '08

30 Sep '08

Any chance of an interactive implementation like zplane in max/msp? Looks like it could be done with data structures or gem... Martin

2 1

Save settings: Pd 0.40.3-extended, Windows XP
by Marko Timlin 30 Sep '08

30 Sep '08

I´m now using Pd version 0.40.3-extended under Windows XP: Before that I was using Pd-0.39.3-extended and to store any kind of adjustments like smaller latency, soundcard and midi controller I just had to: Go to “File/Startup…”and hit [Save all settings] after changing the latency. How could I do that now with the newer version? Anyways the newer version looks really better than the older one :-) Thanks for that. Marko

2 1

pd-extended nightlies and Ubuntu Intrepid
by Chris Wenn 30 Sep '08

30 Sep '08

I'm testing Ubuntu Intrepid (to support my firewire chipset), and attempting to install Pd-0.40.3-extended-20080914-ubuntu-hardy-i386.deb; or Pd-0.42.0-extended-20080914-ubuntu-hardy-i386.deb produces dependency conflicts - Pd-extended wants to install liblame0 which conflicts with libmp3lame0 (and thus just about every video application in Ubuntu, for some reason) # sudo apt-get install liblame0 Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: libtwolame0 libdc1394-13 mplayer-skins libsvga1 libglide2 libdvbpsi4 libggi-target-x libxosd2 libenca0 libggi2 libgii1 libgii1-target-x libiso9660-5 libvcdinfo0 libebml0 libmatroska0 Use 'apt-get autoremove' to remove them. The following packages will be REMOVED: blender dvgrab ffmpeg ffmpeg2theora gsopcast gstreamer0.10-ffmpeg gstreamer0.10-plugins-bad-multiverse gstreamer0.10-plugins-bad-multiverse-dbg gstreamer0.10-plugins-ugly-multiverse gstreamer0.10-plugins-ugly-multiverse-dbg libavcodec51 libavdevice52 libavformat52 libmjpegtools0c2a libmp3lame0 libquicktime1 libsynfig0 libsynfigapp0 libvlc0 libxine1-all-plugins libxine1-ffmpeg libxine1-plugins mplayer openmovieeditor synfigstudio ubuntustudio-graphics ubuntustudio-video vlc vlc-nox vlc-plugin-pulse The following NEW packages will be installed: liblame0 0 upgraded, 1 newly installed, 30 to remove and 0 not upgraded. Need to get 185kB of archives. After this operation, 78.9MB disk space will be freed. Do you want to continue [Y/n]? Not sure if I should be reporting this here - if anyone can point me in the right direction I'd be grateful. Chris

2 4

Gem pix and PDP failure - tatiana works with many errors.
by Mark Pasquesi 30 Sep '08

30 Sep '08

I) MAC problems (Aiii) PDP loads and fails with the attached mixer patch. Also fails with help pix_film patch. Though at times it functions. Tatiana is stable, but pd output states there are tons of errors. But it never crashes, and deals with live very well. Suggestions on how to debug???? Minimac osx.4.11, pd extended 40.3 binary... - x 11 and dev tools installed, computer not optimised with fftw3 process. Functioning perfectly - x-11 gimp, ardour, inkspace... (MAcports and Fink are in failure and conflict - I find them equally frustrating since 2007 - at the moment i go to the program sites, source or darwin forge, and install binaries or build needed sources) This is output from failing mix patch.... PDP: pure data packet version 0.12.5-darcs [pdp_qt]: setting LIBQUICKTIME_PLUGIN_DIR to: /Applications/Pd-extended_2008.app/Contents/lib/libquicktime PiDiP : additional video processing objects for PDP version 0.12.22 ( ydegoyon(a)free.fr ) pdp_colorgrid: version 0.4 by Yves Degoyon (ydegoyon(a)free.fr) & Lluis Gomez i Bigorda (lluis(a)artefacte.org) error: $1: argument number out of range error: [pix_filmDarwin]: unable to find file: ... you might be able to track this down from the Find menu. error: $1: argument number out of range error: [pix_filmDarwin]: unable to find file: PDP: pure data packet version 0.12.5-darcs [pdp_qt]: setting LIBQUICKTIME_PLUGIN_DIR to: /Applications/Pd-extended_2008.app/Contents/lib/libquicktime PiDiP : additional video processing objects for PDP version 0.12.22 ( ydegoyon(a)free.fr ) pdp_colorgrid: version 0.4 by Yves Degoyon (ydegoyon(a)free.fr) & Lluis Gomez i Bigorda (lluis(a)artefacte.org) error: $1: argument number out of range error: [pix_filmDarwin]: unable to find file: ... you might be able to track this down from the Find menu. error: $1: argument number out of range error: [pix_filmDarwin]: unable to find file: 2) This is from the Kernel panic produced on the machine by the pix_film help and the mixer patch.... Rather strange, no? attached are the 2 patches... panic(cpu 1 caller 0x001A49CB): Unresolved kernel trap (CPU 1, Type 14=page fault), registers: CR0: 0x8001003b, CR2: 0x561c90ba, CR3: 0x00de8000, CR4: 0x000006e0 EAX: 0x00000000, EBX: 0x0599e800, ECX: 0x004b2c9c, EDX: 0x354b1038 CR2: 0x561c90ba, EBP: 0x2548b268, ESI: 0x00000400, EDI: 0x0599e808 EFL: 0x00010206, EIP: 0x561c90ba, CS: 0x00000008, DS: 0x00000010 Backtrace, Format - Frame : Return Address (4 potential args on stack) 0x2548b078 : 0x128d0d (0x3cc65c 0x2548b09c 0x131f95 0x0) 0x2548b0b8 : 0x1a49cb (0x3d2a94 0x1 0xe 0x3d22b8) 0x2548b1c8 : 0x19b3a4 (0x2548b1d8 0x2548b248 0xe 0x340048) 0x2548b268 : 0x561c8590 (0x599e800 0x2548b73c 0x18fca88 0x18fca88) 0x2548b318 : 0x561c86bf (0x2548b73c 0x598c18c 0x1 0x1) 0x2548bb58 : 0x561c8460 (0x2 0x2548bf48 0x598c18c 0x0) 0x2548bb88 : 0x325824 (0x475ee04 0x0 0x2 0x2548bf48) 0x2548bbc8 : 0x1d0535 (0x3b40a04 0x475ee04 0x2 0x2548bf48) 0x2548bc18 : 0x1df94a (0x598c18c 0x0 0x2 0x2548bf48) 0x2548bc68 : 0x1d774a (0x2548bcb8 0x2548be2c 0x2548be6c 0x1a3736) 0x2548be48 : 0x1d7bb8 (0x0 0x2548be6c 0x495566c 0x325824) 0x2548bf58 : 0x37b300 (0x5080bb8 0x4955628 0x495566c 0x0) 0x2548bfc8 : 0x19b77e (0x480a658 0x0 0x19e0b5 0x483159c) No mapping exists for frame pointer Backtrace terminated-invalid frame pointer 0xb0101368 Kernel version: Darwin Kernel Version 8.11.1: Wed Oct 10 18:23:28 PDT 2007; root:xnu-792.25.20~1/RELEASE_I386 Model: Macmini1,1, BootROM MM11.0055.B08, 2 processors, Intel Core Duo, 1.83 GHz, 2 GB Graphics: Intel GMA 950, GMA 950, Built-In, spdisplays_integrated_vram Memory Module: BANK 0/DIMM0, 1 GB, DDR2 SDRAM, 667 MHz Memory Module: BANK 1/DIMM1, 1 GB, DDR2 SDRAM, 667 MHz 3) If you'd like tatiana output, let me know.... Tell me if this might be related.... Ubuntu live video access - kino and PD tests.. on my Omnibook XE3: The issue is clearly permissions. On Ubuntu xen 710, default does not allow video use without root. If we are cross programming, might there be permission errors?? (I did give my user video access, which fixed Kino access - but not PD!) If it is permissions, Where are PD's hardware permissions given? How can we load with access by default on Ubuntu and Dyne:bolic? Thus kino, when not launched as root, will not access video on the Ubuntu box. I just ran a test with Kino - terminal boot as root resolved this. Here's the results from kino boot from gui - warning: raw1394 kernel module not loaded or failure read/write dev/raw1394. Could this also be a problem with pd-extended access? How can we change this permission without breaking ubuntu 'standards'. (I changed permissions recursively last week on Ubuntu and caused panics that forced me to reinstall completely.....) I have found contradictory advice, and confusing boot script proposals that have also resulted in less than ideal results... No interface, terminal only Ubuntu - Fun, in other words. I imagine this is the same problem I had on the embedded Dyn:bolic pd and Kino. Both did not function on 710 (OmnibookXE3 and minimac), both functioned on the Ubuntu 704 minimac build, (first time I saw gridflow function!!! On dynebolic - lovely!!!) However, I have to ask at what point Dynebolic is dependent on its host system...Why can't it function even when Ubuntu 710 does not??? Since on the minimac, I had no such problem on the 7.04 Ubuntu and its embedded dyne:bolic. So are these permissions demands a result of an overzealous response by Ubuntu to their former security weaknesses...?? Sorry this is so Long. Hope it's clear. MArk

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new vanilla list-abs: list-slice, list-value and more
by Luke Iannini 30 Sep '08

30 Sep '08

Hallo, I continue to collect list-abs (among other things) in SVN under abstractions/senderfruit/, but I thought I'd highlight a few recent ones that I have found particularly handy as of late: list-slice - the latest addition: works just like Python's slice notation, and thanks to list-splat, even accepts negative indices. [list-slice 2 -2] gives the list minus its first two and last two elements. [list-slice 5 0] gives the 5th element (which is always Lelu) through the end of the list, or [list-slice 0 4] for the first 4 elements (rapping, scratching, graffiti and breakin'). list-value and its brother list-value-extend: [value] for lists. All same-named [list-value] objects always hold the same list, even newly created ones. list-value-extend is a handy shortcut that appends new values rather than replacing. Both accept [clear( to clear their contents. list-dripx is just like list-drip, except it drips "x" values at a time (e.g. [a b c d e f g h i( becomes [a b c( [d e f( [g h i( ) list-proc-insert does decorating: cross connect it with a process to process incoming lists and then insert the results back into the original list. For example, append the length of a list onto the original list (oh no, now it is creating paradoxes). It has uses, I promise, I just can't remember them right now. Finally, list-split-at, which simply splits a list every time it encounters a delimiter, so [a b * c d e * f(-[list-split-at *] gives [a b( [c d e( [f(. This time, these are all thankfully French vanilla bean. (well, except for [import] statements, feel free to strip them if you don't need them or make a dummy [import] object) Cheers Luke

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Pd-list September 2008