Pd-list January 2007

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139 participants
222 discussions

ead~?
by pete mcpartlan 14 Apr '07

14 Apr '07

I've been reading obiwannabe's great tutorials, and he keeps using [ead~] where can i get this? Oh and I dont want to install a new version of PD, I'm in the middle of a big project and I don't want to risk some things changing. thanks, pete

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Broken links all over the place in Pd-extended help files (was: [PD] mapping library examples)
by Kyle Klipowicz 28 Mar '07

28 Mar '07

Oh, ok. That sounds awesome and useful, thanks for the info! However... I tried looking at a random mapping patch in pd-0.39.2-extended-test7 but got what I did a few months back when I tried to look at it. I opened the amplitude_n-help.pd file and it generated this: error: inlet: expected '' but got 'list' error: inlet: expected '' but got 'list' error: inlet: expected '' but got 'list' error: inlet: expected '' but got 'list' error: inlet: expected '' but got 'list' error: inlet: expected '' but got 'list' error: inlet: expected '' but got 'list' error: inlet: expected '' but got 'list' ... etc. I found the culprit: inside the min_n.pd abstraction there are two undefined objects, minimum and maximum. Now my question is this: If we are getting to the point of expecting users to magically know how use the import function, why is it not automatgically included in all the help patches that utilize functions that must be imported in order to not create a broken patch? It seems to me that all help patches should include the necessary import calls so that they are not broken. It seems to me that more than half of the included help patches that I try to open on a fresh Pd-extended install (following all install instruction, i.e. copy the proper files to places on OSX) are broken for this reason. If this is the case, how can we claim that Pd-extended is easier to use and more refined? Please don't take these criticisms personally, I am a big fan of the work that has gone into this project. I would just like to understand these things. I may be missing something. But if I am, then for sure a hundred less-experienced users are too, and they may be scared away! With respect, ~Kyle On 1/30/07, Hans-Christoph Steiner <hans(a)eds.org> wrote: > > Basically, we are trying to come up with a whole collection of > fundamental building blocks for mapping controller data to something > being controlled. It need not only be for music, but that's my > background. Cyrille has a broader background in terms of mapping > than I. While we use these objects with controllers and sensors, > there is nothing that ties them to such uses. They could be used for > any situation where you want to manipulate ranges of data. > > Here's the academicese version: > > http://nime.org/2006/proc/nime2006_106.pdf > > Abstract > > Mapping has been discussed for decades, yet there is not a standard > catalog of mapping methods. The Mapping Library for Pd is a fledgling > library of mapping primitives with the aim of cataloging existing > mapping methods. Also included are techniques for conditioning sensor > data to make it usable in the context of instrument design. > > .hc > > On Jan 30, 2007, at 9:36 AM, Kyle Klipowicz wrote: > > > Yes, please do. I recall looking at it briefly, but didn't know what > > it was created to be used for. Is it in tandem with HID? > > > > ~Kyle > > > > On 1/30/07, padawan12 <padawan12(a)obiwannabe.co.uk> wrote: > >> > >> Hans, please could you give a very quick summary of the mapping > >> library > >> and the problems it's intended to solve (for those of us who > >> missed the > >> announce, or forgot). > >> > >> Cheers > >> Andy > >> > >> On Mon, 29 Jan 2007 18:17:49 -0500 > >> Hans-Christoph Steiner <hans(a)eds.org> wrote: > >> > >> > > >> > Cyrille and I started work on the mapping library a while back. > >> I am > >> > wondering how many people have used some of the objects, and > >> whether > >> > anyone would be willing to share a project where they used some of > >> > the objects. We are writing a paper about the progress of this > >> > library, so it would be nice to include some examples from the real > >> > world (i.e. outside what we do ;) > >> > > >> > .hc > >> > > >> > > >> --------------------------------------------------------------------- > >> --- > >> > > >> > I have the audacity to believe that peoples everywhere can have > >> three > >> > meals a day for their bodies, education and culture for their > >> minds, > >> > and dignity, equality and freedom for their spirits. - Martin > >> > Luther King, Jr. > >> > > >> > > >> > > >> > _______________________________________________ > >> > PD-list(a)iem.at mailing list > >> > UNSUBSCRIBE and account-management -> http://lists.puredata.info/ > >> listinfo/pd-list > >> > >> _______________________________________________ > >> PD-list(a)iem.at mailing list > >> UNSUBSCRIBE and account-management -> http://lists.puredata.info/ > >> listinfo/pd-list > >> > > > > > > -- > > > > http://theradioproject.com > > http://perhapsidid.blogspot.com > > > > (((())))(()()((((((((()())))()(((((((())()()())()))) > > (())))))(()))))))))))))(((((((((((()()))))))))((()))) > > ))(((((((((((())))())))))))))))))))__________ > > _____())))))(((((((((((((()))))))))))_______ > > ((((((())))))))))))((((((((000)))oOOOOOO > > > > ------------------------------------------------------------------------ > > Mistrust authority - promote decentralization. - the hacker ethic > > > -- http://theradioproject.com http://perhapsidid.blogspot.com (((())))(()()((((((((()())))()(((((((())()()())()))) (())))))(()))))))))))))(((((((((((()()))))))))((()))) ))(((((((((((())))())))))))))))))))__________ _____())))))(((((((((((((()))))))))))_______ ((((((())))))))))))((((((((000)))oOOOOOO

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isosonic curves : level the perceptual loudness of different pitches
by Alexandre Quessy 05 Mar '07

05 Mar '07

Hi all, I would like to create an abstraction to adjust the amplitude of synthetic sounds according to the ear sensitivity. At a given amplitude, we hear the notes in the middle range louder than the high and low notes. This perceptual property of the audition can be somewhat undesired in a musical work. (in my opinion at least) The equal lines of actual amplitude of notes that seem to have the same loudness are called "isosonic curves". Here are 2 different graphics of these curves : http://www.multimedia.uqam.ca/cours/audio/images/diag/sonpsy_isoson.gif http://www.comm.uqam.ca/GRAM/illu/mus/nature/CourbeDIsosonie.GIF A few links that might give you a few hint for the calculations : http://en.wikipedia.org/wiki/DB%28A%29 http://en.wikipedia.org/wiki/Weighting_filter http://en.wikipedia.org/wiki/Stevens%27_power_law Anyone would have a formula or a table containing data that could help me to calculate this ? For instance, we would be able to generate sine waves of any frequencies that would be perceived as having the same intensity for all of them, by changing their amplitude according to this leveling formula . This way, we could hear our low freq notes as much as the middle ones. Very valuable. :) Thanks ! -- Alexandre Quessy http://alexandre.quessy.net

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Google Summer of Code
by Hans-Christoph Steiner 18 Feb '07

18 Feb '07

http://code.google.com/soc/ Does anyone know if Google is going to run the Summer of Code program again? If so, I'll happily setup the "mentoring organization" part of it. .hc ------------------------------------------------------------------------ Looking at things from a more basic level, you can come up with a more direct solution... It may sound small in theory, but it in practice, it can change entire economies. - Amy Smith

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Live Apectrum Analyzer
by Thomas Mayer 08 Feb '07

08 Feb '07

Hello, as I'm diving deeper and deeper into Pd and externals, I'm willing to do some video works. One of my aims is to create a spectrum analyzer, preferably with pdp and pidip, as I have just compiled those without any problems. Now, that I'm reading about the different objects, I don't have a clue how to accomplish that. Is there an easy online tutorial available? Or did anyone do that already and is willing to share his/her patch with a newby? My aim is to get something like http://www.bastwood.com/aphex.php but I guess, that will be in five years or so ;) cu Thomas -- "Prisons are needed only to provide the illusion that courts and police are effective. They're a kind of job insurance." (Leto II. in: Frank Herbert, God Emperor of Dune) http://thomas.dergrossebruder.org/

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Playing a bitmap
by Chuckk Hubbard 08 Feb '07

08 Feb '07

Has anyone done this with Pd? I thought I remembered something in GEM, but I can't find it anywhere. Just to have a cursor scroll left to right and assign the different values of pixels to different musical properties... -Chuckk -- "Far and away the best prize that life has to offer is the chance to work hard at work worth doing." -Theodore Roosevelt

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gem - feedback & perspective
by Thoralf Schulze 07 Feb '07

07 Feb '07

hi there, i'm stuck with a problem that really drives me nuts: i have a fairly complex 3d scene. my aim is to take a snapshot of a part of this scene via pix_snap2tex, render this texture on a rectangle that covers exactly the same area where the snapshot has been taken and do this over and over again to create trails of objects moving over this part of the scene. now, no matter what i do, the positions of the moving objects and their representations in the snapshots are always slightly off. as a result, the trails are not what they are supposed to be - they tend to vanish in the middle of the snapshot, instead of representing the motion of the moving objects. everything is perfectly fine when doing the same thing with just a single [rectangle 5.33333 4] filling the whole screen, so it works in principle. but i do need to have other parts of the scene visible as well ... i guess that OpenGL's perspective calculations are kicking in here - is there any way of preventing this? i extensively played around to get this straight: among other things, i tried [ortho], another attempt was to make the single rectangle partly transparent with [alpha], but none of these ideas worked. i greatly appreciate any help - thank you, thoralf. ___________________________________________________________ New Yahoo! Mail is the ultimate force in competitive emailing. Find out more at the Yahoo! Mail Championships. Plus: play games and win prizes. http://uk.rd.yahoo.com/evt=44106/*http://mail.yahoo.net/uk

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edit or play mode information
by Chuckk Hubbard 05 Feb '07

05 Feb '07

Sorry, I left the list out on my earlier reply... I have used: [x] | [pd-subpatch editmode $1( Instead of Ctl-E, and then the same toggle can be used to tell the patch whether editmode is on for the subpatch. I have my sequencer score set up so that hitting E once lets go of the note-cursor and enters edit mode; hitting E again leaves edit mode but leaves the note-cursor unattached to the mouse; and hitting Q at any point binds the note-cursor to the mouse. Of course Ctl-E still works, but in my patch there's no reason not to have just E enter editmode- it only works when that subpatch is active. -Chuckk On 1/28/07, robbert van hulzen <robbert(a)performers.net> wrote: > dear all, > i'm attempting to build an abs to control whether or not hitting a key has > an effect: i'd like the space bar to do a number of things when in play mode > but not in edit mode. i came up with the patch below, however, working on > several open patches will screw it up as it works with a counter that keeps > track of the number of times command-e has been hit (resulting in 1 or 0 > which controls a spigot). i'd like to replace this 'relative' control with > an 'absolute' one, in other words i'm wondering whether i can retrieve the > mode status of the patch somewhere so i can have that control the spigot. > any ideas would be much appreciated. > cheers, robbert > > -- > Pd-0.39.2-extended-test5 > mac osx 10.4.8, 15" G4 PB 1.67 GHz, 1 GB ram > > #N canvas 0 22 672 629 10; > #X obj 50 280 tgl 23 0 go \$0-go empty 0 -6 0 8 -241291 -1 -1 0 1; > #X obj 50 202 key; > #X obj 50 228 sel 32; > #X obj 80 339 select 0 1; > #X obj 83 391 list; > #X obj 50 365 \$0; > #X msg 83 417 \; \$1-go color \$2 \$3 22; > #X msg 125 365 19 16; > #X obj 50 313 t b f; > #X msg 80 365 15 22; > #X obj 27 20 keyname; > #X obj 115 72 sel e; > #X obj 71 150 demux; > #X obj 115 124 f; > #X obj 145 124 + 1; > #X obj 71 46 t s b s; > #X msg 115 98 -1; > #X obj 101 176 sel Alt_L; > #X obj 134 202 + 1; > #X obj 101 202 f; > #X obj 167 202 mod 2; > #X obj 101 228 == 0; > #X obj 50 254 spigot 1; > #X connect 0 0 8 0; > #X connect 1 0 2 0; > #X connect 2 0 22 0; > #X connect 3 0 9 0; > #X connect 3 1 7 0; > #X connect 4 0 6 0; > #X connect 5 0 4 0; > #X connect 7 0 4 1; > #X connect 8 0 5 0; > #X connect 8 1 3 0; > #X connect 9 0 4 1; > #X connect 10 1 15 0; > #X connect 11 0 16 0; > #X connect 12 1 17 0; > #X connect 13 0 14 0; > #X connect 13 0 12 1; > #X connect 14 0 13 1; > #X connect 15 0 12 0; > #X connect 15 1 13 0; > #X connect 15 2 11 0; > #X connect 16 0 13 0; > #X connect 17 0 19 0; > #X connect 18 0 20 0; > #X connect 19 0 18 0; > #X connect 19 0 21 0; > #X connect 20 0 19 1; > #X connect 21 0 22 1; > #X connect 22 0 0 0; > #X coords 0 -1 1 1 23 23 1 50 280; > > > > _______________________________________________ > PD-list(a)iem.at mailing list > UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list > -- "Far and away the best prize that life has to offer is the chance to work hard at work worth doing." -Theodore Roosevelt -- "Far and away the best prize that life has to offer is the chance to work hard at work worth doing." -Theodore Roosevelt

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Re: Looping
by PORRES 04 Feb '07

04 Feb '07

thanks, the samples seem to be ok when looped in sound forge and all... check the wave loop file attached. cheers alex Charles Henry <czhenry(a)gmail.com> wrote: Hey, there, Alex, I had been talking about this with Andy a while back, and we concluded that clicking occurs because of phase discontinuities between the beginning and end of the loop. Could you send me the loop? Any thoughts, Andy? Best wishes, Chuck On 1/30/07, PORRES wrote: > hi there, I edited a nice sample to play looped in od, but it clicks a lot, > i dont know why... anyone ever had this problem and has any ideas on > overcoming it? > > cheers > > alex > > Charles Henry wrote: > By the way, Kim, could you tell me what the feedback loop is? (what > kinds of operations are you using?.... is it linear?...etc...) If > it's linear, you should be able to replace the feedback loop with an > equivalent operation, which circumvents the whole problem. > > Chuck > > _______________________________________________ > PD-list(a)iem.at mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list > > > > ________________________________ > 8:00? 8:25? 8:40? Find a flick in no time > with theYahoo! Search movie showtime shortcut. > > --------------------------------- 8:00? 8:25? 8:40? Find a flick in no time with theYahoo! Search movie showtime shortcut.

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Re: [GEM-dev] Re: pix_video and dv1394 capture on Edgy
by Mathieu Bouchard 03 Feb '07

03 Feb '07

On Thu, 28 Dec 2006, Studio Zodiak wrote: > I tried to get 1394 running with ubuntu edgy without success also. > Maybe try using a webcam before you die of frustration. > I did. It changed my life : ) Both GEM and GridFlow would benefit from supporting a camera interface based on libraw1394, libavc1394, etc., instead of the rather unstable and deprecated direct interface to the kernel. Another possibility would be to support videojack/unicap as a uniform interface to cameras. I think that this might be a good idea because there's only so much effort that we can bother to do trying to support V4L1, V4L2, lib*1394.so (both DV and DC), (btw what is/was libdv1394? it doesn't exist on Ubuntu), and then SANE and... did I forget any? And then it's a good idea to have it in a separate thread/process (don't you love a V4L driver that doesn't support non-blocking mode and ignores SIGALRM ?). Despite those thoughts I still haven't had a look at unicap yet, still too many other things TODO first. _ _ __ ___ _____ ________ _____________ _____________________ ... | Mathieu Bouchard - tél:+1.514.383.3801 - http://artengine.ca/matju | Freelance Digital Arts Engineer, Montréal QC Canada

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Pd-list January 2007