Pd-list May 2008

pd-list@lists.iem.at

134 participants
212 discussions

Re: [PD] looking for open dmx external
by David Kirkpatrick 05 Oct '08

05 Oct '08

Hi Jim,I developed an external with Adrian 'Packrat' Taylor that allows pd to talk to the Enttec USB DMX Pro. It is called [dmxsend], and is part of the Packrat library (.dll). You can find it at www.packratproductions.com.au/davidkirkpatrick. I've included a simple help patch to show the basic functions and how they work. If you have any questions, let me know. Also, if you want to try and get it working on OSX or linux you're welcome to try. David Kirkpatrick>Hi, does anyone know where I can find an external for the Entec Open DMX>USB device, preferably for Linux though I can also use windows if I have>to. Thanks.>Jim _________________________________________________________________ Overpaid or Underpaid? Check our comprehensive Salary Centre http://a.ninemsn.com.au/b.aspx?URL=http%3A%2F%2Fcontent%2Emycareer%2Ecom%2E…

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(no subject)
by David Schaffer 27 Aug '08

27 Aug '08

Hello, Does anyone know the size limit of a 44.1k stereo wav file that "soundfiler" can handle? So far, I haven't been able to write more than 36562276 samples to a table (which represents 829 seconds of sound if I get it right). What can I do in order to be able to read larger files? Thank you. D.S http://www.flickr.com/photos/schafferdavid/ http://audioblog.arteradio.com/David_Schaffer/ _________________________________________________________________ Invite your mail contacts to join your friends list with Windows Live Spaces. It's easy! http://spaces.live.com/spacesapi.aspx?wx_action=create&wx_url=/friends.aspx…

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SQLdb V0.0 is posted
by Mike McGonagle 23 Aug '08

23 Aug '08

http://puredata.info/Members/mjmogo Hello all, Just wanted to let you know that I have posted the latest "findings" on this external... basically, it is set up with two distinct objects, one the represents the Database connection [SQLdb], and a SQL query [SQLquery]. Please bend, fold, spindle, mutilate, or treat as any other piece of software. In other words, tell me what you think is wrong, and please be specific... Mike -- Peace may sound simple—one beautiful word— but it requires everything we have, every quality, every strength, every dream, every high ideal. —Yehudi Menuhin (1916–1999), musician

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schedule a sequence of events
by altern 24 Jul '08

24 Jul '08

hi i needed to schedule a sequence of events, in this case start/stop certain parts of a patch over time. I wanted to be able to pass to an abstraction a list of time intervals (in secs and with variable length) and then get output a series of bangs after each of the intervals. I attach the solution I found, not sure if this is clever or there is maybe something already done for this? I use drip, coll and delay. It receives a list of times like 2 3 0.5 and outputs the index at the right time. In this case after 2 secs outputs num 0, after 3 secs num 1, and after half a sec more outputs num 2. I called it sequence but i bet this name is already taken and it would be wise to rename it with another one. thanks for any feedback or ideas enrike #N canvas 328 332 784 519 10; #X msg 144 366 next; #X msg 97 201 clear; #X obj 31 218 drip; #X obj 31 261 i; #X obj 58 261 + 1; #X obj 31 239 t b f; #X msg 46 193 0; #X obj 31 326 coll xxxx; #C restore; #X obj 58 391 delay; #X obj 31 282 pack f f; #X text -2 388 index; #X text -2 350 time; #X obj 33 391 f; #X msg 138 201 stop; #X obj 31 351 * 1000; #X obj 14 170 t b l b b; #X text -35 198 wait; #X obj 33 451 outlet; #X obj 14 80 inlet; #X obj 97 170 t b b; #X obj 178 102 tgl 15 0 empty empty empty 0 -6 0 10 -262144 -1 -1 1 1; #X obj 58 414 spigot 0; #X msg 166 71 1; #X obj 178 19 inlet; #X msg 65 38 0.5 1 2 3; #X obj -35 218 delay 50; #X connect 0 0 7 0; #X connect 1 0 7 0; #X connect 2 0 5 0; #X connect 3 0 4 0; #X connect 3 0 9 0; #X connect 4 0 3 1; #X connect 5 0 3 0; #X connect 5 1 9 1; #X connect 6 0 3 1; #X connect 7 0 14 0; #X connect 7 1 12 1; #X connect 8 0 21 0; #X connect 9 0 7 0; #X connect 12 0 17 0; #X connect 13 0 8 0; #X connect 14 0 8 0; #X connect 15 0 25 0; #X connect 15 1 2 0; #X connect 15 2 6 0; #X connect 15 3 22 0; #X connect 15 3 19 0; #X connect 18 0 15 0; #X connect 19 0 1 0; #X connect 19 1 13 0; #X connect 20 0 21 1; #X connect 21 0 12 0; #X connect 21 0 0 0; #X connect 22 0 20 0; #X connect 23 0 20 0; #X connect 24 0 15 0; #X connect 25 0 0 0; #X coords 0 -1 1 1 95 19 1 100 100;

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Rainy days
by Andy Farnell 11 Jul '08

11 Jul '08

Something new to share for a bit of fun. It's for an exercise in the synthetic sound design book and it's about causality in sound. Some bits are old and maybe you've heard them before on my site, but the final ensemble is fresh. The first part is a wind model. It starts with a global (world) variable for windspeed and adds local gusts according to buildings nearby. Then objects are placed in the scene like telephone poles, trees and rocks. This is a new version that works by doing rule of thumb calculations on turbulence (critical Reynolds number from size and texture) to guesstimate the frequency (quasi- oscillation from vortex shedding). Thin wires whistle with a high sound and big buildings groan and wail with a much lower sound. Okay here's that... http://www.obiwannabe.co.uk/sounds/effect-wind3.mp3 Next there's rain If you're into graphics then the best way of thinking about this is as a "particle system", or rather it's about statistical distributions. Normally the rain just falls down in a regular stream and makes the sound of whatever it hits (usually ground, leaves or puddles of water). Noise is treated to get a certain distribution and width of clicks in a Gabor/Stockhausen sense, some things in the scene can be simple resonantors driven by the droplets. http://www.obiwannabe.co.uk/sounds/effect-plainrain.mp3 Now, another model in my box of tricks is a window pane I've built (from Perrys square lamina description... that's a glass laminar model made with banded waveguides.) Here's a few knocks on the virtual window with a virtual stick. http://www.obiwannabe.co.uk/sounds/effect-knockonwindow.mp3 So I sit here looking out of my real window, and I guess artists mimic their surroundings, so this sound is an insight into where I live. Tonight the rain is lashing down and the wind is howling in the trees like a typical British winter. I thought this would make a good example of causality. What if we take the wind environment, put the rain particles into the wind and add a window? Here's what it sounds like inside on a stormy day (the wind is deliberately modulated in a periodic way to accentuate the effect). http://www.obiwannabe.co.uk/sounds/effect-rainywindow.mp3 I hope this gives something interesting about potential of procedural audio fx with Pd, maybe this isn't the sort of thing one can do so easily with traditional sound design. best 2 all, andy --- Use the source

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[PD-announce] cheap AVR/HID sensor board
by Derek Holzer 05 Jul '08

05 Jul '08

Martin Howse just posted his documentation of a simple HID sensor board, costing approx EUR 5 to make, which can be used over USB with PD, SuperCollider, etc. http://1010.co.uk/avrhid.html This board was used during a sensor workshop which took place at Pickled Feet in Berlin on 15 March 2008, with the second part taking place on 26 April 2008. Details here: http://1010.co.uk/workshop.html Further docs could include step-by-step programming instructions, sensor connection schematics and sample PD patches. Feedback more than welcome! best, d. -- derek holzer ::: http://www.umatic.nl ::: http://blog.myspace.com/macumbista ---Oblique Strategy # 175: "What are the sections sections of? Imagine a caterpillar moving" _______________________________________________ PD-announce mailing list PD-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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Trax - Sinusoidal Model Synthesis in Pure Data
by Rich E 30 Jun '08

30 Jun '08

www.teafordragons.com/rte/trax.html This is a patch I've been working on for quite some time now, finally packaged with some documentation and an example qlist with it. Trax is a fancy additive synthesizer that stores partials in data structures and re-synthesizes them using [oscbank~]. It gets the sinusoidal models from SDIF files with 1TRC frames, which have to be imported with [sdiflists]. I'd like to know how well it works for others, it makes great sounds on my Ubuntu laptop, although I had much worse results on a Macbook. You can get the externals from cvs or: www.teafordragons.com/rte/software.html I personall control Trax with a Wacom Intuos3, so there are mappings programmed for it that get wacom data using [linuxevent]. *note: I chose not to use [hid] because it is possible to call the wacom with [linuxevent /dev/input/wacom], which is always symbolically linked to the correct /dev/input/event*. I couldn't ever get [hid] to do find the wacom on its own, without specifying exactly which event number it is on. You can also listen to a couple pieces I wrote using Trax, which also use other fun Pd stuff and recorded in Ardour: www.teafordragons.com/rte/music.html Now, on to SMS, Spectral Model Synthesis, that is.. cheers, rich

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[openpanel]/[savepanel] directory, [cd]
by Rich E 24 Jun '08

24 Jun '08

Hi all, I noticed the nice, new feature in [openpanel] and [savepanel] to specify a directory to open in. This saves much, much time navigating to the right directory. But it seems to only work if you specify the full path or the directly lays in the relative path of where pd was opened from (which is almost never the case on Mac, and hardly ever on other systems). It should open from anything within the relative path of where the patch is. Which brought me to another question; is there any way currently to do a 'cd' or 'pwd' in pd? I tried: [pwd ( | [shell] but this has the same problem of openpanel and savepaned; it gives you the path that pd was opened from. [cd /home/full/path/to/patch ( | [shell] doesn't seem to do anything, and would be a workaround if it did. regards, Rich

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[PD-announce] Proof Me! PD FLOSS Manual
by Derek Holzer 24 Jun '08

24 Jun '08

Dear Pure Dataheads, following the PD FLOSS Booksprint in Croatia last month, the 0.1 version of the Pure Data FLOSS Manual is now online! http://flossmanuals.net/puredata The Pure Data FLOSS Manual is conceived as a beginner's approach to Pure Data which, unlike most of the existing documentation, doesn't assume that the user has a degree in mathematics or computer science before they get started! Currently, information on installing and configuring PD, the interface, dataflow tutorials and audio tutorials are included. The FLOSS Manuals philosophy is that chapters from the different available FLOSS Manuals can be "remixed" to create new manuals (for course readers & curriculums, classroom manuals, etc etc). Everything is published under the GNU General Public License. Adam Hyde, Luka Prinčič and myself busted some serious ass to get this up, and now we're ready to take on our toughest customers: YOU. We'd really appreciate it if members of this list could read through the chapters, keeping the following points in mind: 1) Is the text clear and consistent? 2) If technical jargon is used, is it defined inline or included in the Glossary in the back? 3) Are the tutorials complete, or are some steps or information missing? 4) Grammar/spelling, of course 5) Could each chapter exist as a self-standing tutorial outside the context of the PD Manual (i.e. could it be "remixed" with chapters from other FLOSS Manuals without losing anything)? Those not so familiar with Pure Data are encouraged to go through the different tutorials and give feedback as to whether they need more (or less!) information, and whether different parts are redundant or need to be split off from the chapters they are in. Experienced PD users are also welcome, of course! Also, we are still seeking help getting graphics and screenshots for several sections. And there is a HUGE to-do list if you want to get more seriously involved in the project! Thanks and best wishes! Derek ----TO DO BY CHAPTER LIST---- # Pure Data # Introduction ---cover image, important! # WhatIsGraphicalProgramming ----icons/graphics to go with concepts in text ----icons of modular synth with patch cables or similar analog "patching" ----flowchart of inputs and outputs between PD and audio, MIDI, network, video, Arduino/motors, etc ----chart describing relationship of PD to Externals # WhatIsDigitalAudio ----icons/graphics to go with concepts in text ----icon of speaker cone movement ----icon of microphone to voltage to soundcard ----icon of soundcard to voltage to speaker movement ----icon of clipping audio ----icon/graph illustrating Nyquist foldover # Installing # Linux (source) # Windows # InstallingOSX ---Updated Extended installation instruction ---Screenshots of installation # ConfiguringPD ---Screenshots of config menus from all three operating systems (slightly different locations on OSX, Windows, Linux) ---Better introduction to Path, Startup and how to configure Externals with Extended # TroubleShooting ---"I don't hear any sound!" Screenshot "compute audio" button + audio settings in PD, Maybe also audio control panels from different OSes? ---"The test tone sounds distorted!" Add screencap of testtone.pd patch ---"I'm not seeing any audio input!"audio settings in PD, with inputs and outputs highlighted ---"I don't see any MIDI input!" Screencaps: audio/midi prefernces with midi highlighted, OSX: Audio MIDI Setup.app, Linux: QJackctl, Windows: MIDI Ox/MIDI Yoke Junction ---"I get the message "... couldn't create" when I open a patch and there's a dashed line around my object!" Screencap: patch with uncreated objects (missing path/external problem) # Getting Started # StartingPD ---"Starting PD with the Clickable Icon": OSX, Linux screencaps # TheInterface ---Screenshots of different menus from all three OSes # AudioTutorials ---"Introduction": block diagram of synthesizer architecture, as desribed in text ---Formatting: messages like "bang" inside quotes (no Caps, as I have done with "Bang" in some places and need to change...) # AudioStreaming # DataflowTutorials ---give titles to screenshots so that readers can tell which patches match which images (some do this, some don't...) ---"Math": examples/discussion of [expr]??? ---"Order of connecting and [trigger]": explain the patches in-line, rather than only in comments in screenshots (so that text is searchable, copy/pasteable..) ---Screencaps are very aliased, to the point where you can't read the ~ in the object names. Should they be redone at new resolution or with antialiasing? # Appendices # PureGlossary ---format of object names = [italics in square brackets], must be formatted correctly ---format of glossary words in general text: we don't have one yet. Bold on first use in chapter maybe? Needs formatting all through text. # ListofObjects ---incomplete, please add more libs ---maybe more discussion of externals needed as well ---formatting of object names? # PureLinks ---always welcome # Credits ----MORE CHAPTERS/SECTIONS TO DO----- * Configuring "Path" and "Startup" + adding Externals VERY IMPORTANT! * MIDI tutorial (keyboards, sliders, etc, input + output to/from devices or other programs) * HID sensor tutorial * Patching strategies (advanced usage and examples of GoP, Abstractions mostly) * Audiofile manipulation (tables + Extended objects) * Realtime effects tutorial (delays, filters, etc) * GEM VJ tutorial (pix_film, pix_movie) * Networked data (OSC, netsend/netreceive) -- derek holzer ::: http://www.umatic.nl ::: http://blog.myspace.com/macumbista ---Oblique Strategy # 36: "Consult other sources -promising -unpromising" _______________________________________________ PD-announce mailing list PD-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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DMX oriented library for PD?
by David Schaffer 20 Jun '08

20 Jun '08

Hi, Is there such thing as a DMX language oriented library for pd? I never heard of it but it would certainly be an amazing step forward for the program: being able to deal with sound, video, midi and lighting control signals would make it a must-have for theaters... Considering pd's control signals abilities, it shouldn't be too hard to emulate a lighting board's functions, and also the sound/lighting interraction could be much deeper. Has anyone thought of this before? I know there's usb-dmx boxes out there... D.S

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Pd-list May 2008