Pd-list June 2008

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124 participants
197 discussions

and it's PR/Marketing, or those
by Adrian 23 Nov '08

23 Nov '08

I'm sorry for this more like OT, it's just my thought about improving PD and it's externals in another way. I'm struggling ... PD is one of the best tools for making people learn/experiment/perform/interact digital/electronic art at it's best. But where are the people that are PD's target. I'm trying to suggest that PD should try to follow a Popper-alike way of developing. Make it easy accessable for the people and use their input. Except if PD and it's externals are purely egoistic developments, which i don't think is the case ;) The more people you can involve the more feedback/developer/help you get in improving. I'm sorry for saying such things, as it is something that is an actual idea of most of the people here, i'm not trying to sell you for stupid. Maybe i'm just frustrated about my own lack of skill. I was fascinated about projects like pdp, gridflow and especially desiredata. But installing them is a hell for me as a OS X user, and the least i wanna do is search/install for all the necessary things. Now just some suggestions (excuse me for being rude): - Vastly improvement of the webcommunity, very important: Except for a very good maillinglist there is no real source for a community for pd on the net. The forum at hurleur.com is a joke, and that the official site is deadland is just sad. Furthermore the site needs to be ordered and probably hardly overworked, there is nothing wrong in making it accesible to as many people as possible by runnig it in plone, but is it nessecary? The people accesing the site now will probably not need that the site is universible compatible with every last browser on this earth and history, etc. - Improvement in usability of PD & e(xternals): Projects like the installers of iOhannes and desiredata are genial! All externals should follow a path where they can make themself accesible to the public with ease. It must be very frustrating to put lot's of effort and time into something and then nobody wants it. - And last, the documentation: Order, Unifying, Improve Please don't kill me for this mail. Lately i had a message in a Fortune-Cookie saying that "i have a reputation for being very straight forward and honest", i agree and want to follow that path. This mail is not meant to flame or criticize, especially not the developers. I bow down in front of the huge effort all of you put into PD & e. I just think the way of opening and easy accessing the public is the best way in proving that PD is the best and drive it's development. yours, adrian -- another incomplete website: http://conficere.ch/pds

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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

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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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[PD-announce] P.i.D.i.P. 0.12.23
by ydegoyon＠free.fr 13 Aug '08

13 Aug '08

hola, release of P.i.D.i.P. 0.12.23 which is a release to improve camera support in pdp, as says the log file : ###################################################################### 0.12.23 ( codename My Mum's Cam ) added pdp_v4l2 : video 4 linux 2 object code template from pdp_v4l and xawtv ( v4l2 driver ), thanks to Tom Schouten & Gerd Knorr <kraxel(a)bytesex.org> added pdp_ieee1394 : finally, the firewire camera object for linux written by Lluis Gomez i Bigorda ( <lluisgomez(a)hangar.org> ) ###################################################################### for compiling the new pdp_ieee1394, you need to install the libdv-devel on debian or ubuntu ( remark for Hans ).. also, there is no more tarballs on my website, all the code is in SVN, and if you want to install, i recommend to install pd extended... i think everybody should consider doing the same, and avoid all these tarballs everywhere, but as you like... que disfruteis! sevy _______________________________________________ PD-announce mailing list PD-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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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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Re: [PD] better tabread4~
by Matt Barber 24 Jul '08

24 Jul '08

For what it's worth, here's supercollider's cubic interpolation function, which differs from csound's and Pd's, which I believe are equivalent: static float cubicinterp(float x, float y0, float y1, float y2, float y3) { // 4-point, 3rd-order Hermite (x-form) float c0 = y1; float c1 = 0.5f * (y2 - y0); float c2 = y0 - 2.5f * y1 + 2.f * y2 - 0.5f * y3; float c3 = 0.5f * (y3 - y0) + 1.5f * (y1 - y2); return ((c3 * x + c2) * x + c1) * x + c0; } Matt > Date: Tue, 24 Jun 2008 23:50:06 -0500 > From: "Charles Henry" <czhenry(a)gmail.com> > Subject: Re: [PD] better tabread4~ > To: "Mathieu Bouchard" <matju(a)artengine.ca>, pd-list(a)iem.at > Message-ID: > <518fe7b20806242150yf1f3f1aicf129039778260b2(a)mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > On Tue, Jun 24, 2008 at 9:24 PM, Mathieu Bouchard <matju(a)artengine.ca> wrote: > >> I don't think that more than one alternative will be necessary. For 4-point >> table lookups that go through all the original points, I don't know why >> anyone would aim lower than a C2 piecewise-polynomial. Unfortunately, it >> would be somewhat too late to just call it [tabread4~]. Or not. > > How low is too low? hmmm.... > tabread4~ is deficient as Cyrille pointed out, because the resulting > function is not continuously differentiable (thanks for the > correction). So, what characteristics would be best for a "fast" > interpolating function? > > When we have an interval between samples, we wish to fit a polynomial > (because it's fast, I guess) that satisfies our constraints. > We could specify the polynomial has the same values at x[-1],x[0], > x[1], x[2] (tabread4~). Four constraints, determines a cubic > polynomial, works out as a linear algebra problem. > > or we could set x[0],x[1] and x'[0]=(x[1]-x[-1])/2 and x'[1]=(x[2]-x[0])/2 > again, 4 constraints, cubic polynomial, etc... > > or another 4 point scheme, with continuous 2nd derivative > setting x[0], x[1], x'[0]=(x[1]-x[-1])/2 and x'[1]=(x[2]-x[0])/2 > and x''[0]=x[1]-2*x[0]+x[-1] and x''[1]=x[2]-2*x[1]+x[0] > 6 constraints, 5th degree polynomial > > and if you additionally wanted it to actually go through x[-1] and > x[2], it would be 7th degree > > So, even for 4-point interpolation, there are some options that could > all be called tabread4~. > > But not all possibilities are worth analyzing... I'm not even sure > what kind of method to use to narrow the field. > > Chuck >

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[PD-announce] Pd-0.40.3-extended-rc2 released
by Hans-Christoph Steiner 22 Jul '08

22 Jul '08

For this release, there has been a lot of work in making the GUI and user experience much more fluid and easy. There is a new visual look that was designed to make patches more readable. Additionally, lots of things have been tweaked to make Pd behave more like a normal app. There has already been a lot of testing on these builds, so it is getting quite close to a final version. (Debian/PowerPC is missing now but will come later) http://at.or.at/hans/pd/installers.html Here is a partial changelog: - next visual appearance designed for readability - default locations for user-installed externals, helpfiles, etc. GNU/Linux: /usr/local/lib/pd-externals and ~/pd-externals Mac OS X: /Library/Pd and ~/Library/Pd Windows: %ProgramFiles%/Common Files/Pd and %UserProfile%/ Application Data/Pd - lots of standard key bindings added: Enter/Return for OK Escape for Cancel Ctrl/Cmd-W closes all windows on Mac OS X, Cmd-` cycles thru open windows on Mac OS X, Cmd-m minimizes windows Ctrl/Cmd-R raises/lowers Pd window Ctrl/Cmd-Shift-R shrinks/grows Pd window Ctrl/Cmd-Shift-L clears Pd window's text console Ctrl/Cmd-B opens the Help Browser - you can now use "~" in all paths to mean home folder, and on Windows you can use environment variables, lie %UserProfile% in paths - Cut/Copy/Paste now work directly into object and message boxes on all platforms - fixed Cut/Copy/Paste for the Pd window's console - [declare] and [import] now sorted out for loading (but much work needs to be done before there namespace support is complete) - "File -> Save As" defaults to the Home folder (~/) on Mac OSX - new patches default to the folder last saved in - included pgp_opengl aka 3dp on GNU/Linux and Mac OS X - 'hardware' and 'deprecated' removed from libraries loaded by default - On Debian/Ubuntu, the packages now install into /usr rather than / usr/local - On Mac OS X, you can now build "standalone" applications from the File menu. KNOWN BUGS - check http://puredata.info/dev/bugtracker before reporting bugs - Escape, Enter, and Ctrl/Cmd-W don't close the Path and Startup preferences - pdp_opengl is alpha and will definitely crash Pd - loading pdp_opengl will crash Pd if X11 is not open before trying to load it - the GUI runs slower on some older Macs ------------------------------------------------------------------------ ---- 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 _______________________________________________ Pd-announce mailing list Pd-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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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-list June 2008