[PD] [PD-announce] Urban Screens and Public Space International Seminar / Sept.28-29-30 at Medialab-Prado
*Urban Screens and Public Space* *International Seminar* *September 28, 29 and 30, 2009 @Medialab- Prado Madrid (Spain)* This international seminar aims to reflect on the relationships established between urban screens and the public space in which they are immersed, questioning the kinds of space, communities and personal interactions they activate. The program includes lectures given by internationally renowed artists and experts, as well as roundtables, discussion groups and the presentation of urban screen projects in Spain, such as the screen at Plaza de Las Letras (Medialab-Prado) in Madrid, the facade of the C4 in Cordoba, or the communicating building of Alcorcon City Council (Madrid). Participants: *Mirjam Struppek* (Interactionfield http://www.interactionfield.de/), *Susa Pop* (Public Art Lab http://www.publicartlab.org/), *Jeffrey Huang* (Media Design Lab), *Kim Halskov *(Digital Urban Living http://www.digitalurbanliving.dk/), *Jan and Tim Edler* (Realities United http://www.realities-united.de/), and *United Visual Artists* (UVA http://www.uva.co.uk/). Roundtables moderated by *José Luis Brea*, *Blanca Fernández Quesada*, and *Paloma Blanco*. Free admission. Limited seating. Complete program and RSVP: http://medialab-prado.es/article/urban_screens_and_public_space_seminar * Contact:* difus...@medialab-prado.es +34 91 369 2303 *Venue: * Medialab-Prado Plaza de las Letras Alameda, 15 28014 Madrid (Spain) -- Nerea García Garmendia Comunicación / Press Medialab-Prado Área de Las Artes, Ayuntamiento de Madrid Plaza de las Letras Alameda, 15 28014 Madrid Tfno. +34 914 202 754 difus...@medialab-prado.es www.medialab-prado.es ___ Pd-announce mailing list pd-annou...@iem.at http://lists.puredata.info/listinfo/pd-announce ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] problem with pdvjtools
Pagano, Patrick wrote: pdvjtools.deb with pdp_frei0r does not work. it crashes every time. FYI. Wich system are you using? i tried a bunch of times and tried to make a light joke pdp_freeframe still works though videogrid no worky pp husk ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Feedback discussion
Hi Jerome, as you probably discovered, you need to use a send~/receive~ pair or other type of one-block delay to make any kind of feedback in Pd to avoid the dreaded DSP loop detected error. Filters, delays, waveshapers and other things can affect the signal along the way. But to be honest, doing feedback-systems was the main thing that got *away* from using computers, and more into using hardware (analog filters, oscillators, waveshapers, etc). For one, feedback in the digital realm is never instantaneous, because no code can compute it's output using that exact same output as its input (discrete/sampled time). In the analog realm, as in real life, things can and do simultaneously affect each other (continuous time). For my longer (and more philosophical) explanation, check here: http://blog.myspace.com/index.cfm?fuseaction=blog.viewfriendID=8000634blogID=440007326 and here: http://blog.myspace.com/index.cfm?fuseaction=blog.viewfriendID=8000634blogID=438289734 And secondly, feedback-systems sound completely differently in the digital realm than in the analog realm, where the saturation of different op amps or transistors in combination with the less-than-ideal analog waveforms creates interesting, unpredictable timbral and/or rhythmic effects. These non-linear effects are far more attractive to me than the absolute precision or total randomness of most computer synthesis, and this moved me away from using Pd for sound synthesis (versus using it for sample manipulation, where it truly excels) and more towards analog modular synthesizers. Some people like apples, and some people like oranges... In Pd, unlike in an analog system, saturating some object usually results in it blowing up, i.e. all values are maximum or minimum. Most filters or delays in Pd, for example, throw a nan error at that point and the signal chain breaks down. If you read The CSound Book, you find that blowing up filters was one of the biggest problems in that particular language. This makes sense since a filter is in fact a small feedback system of it's own which cancels out or reinforces various phases of a wave! (At least that's my analog-world understanding of it, DSP math wizards are welcome to correct me on this one...) So this was the second turn-off from digital feedback systems--that I couldn't always rely on them to work! Creating Pd patches which could possible mimic analog saturation might involve using lookup tables with transfer functions based on those sampled from op amp or transistor clipping. But that's a hell of a lot more math than I've ever been interested in ;-) Frank Barknecht posted a waveshaper to do soft clipping somewhere in the archives once, that might be an interesting patch to look at, since what it does is gradually taper off values as they approach the max/min values, instead of hard clipping them as the [clip~] object would. The resulting distortion of the signal may sound warmer or more analog than a hard-clipped, aliased digital distortion, and put in the right place it *might* prevent an object after it from blowing up. Some other objects to explore would be [fdn~] (feedback delay network) and [xfm~] (cross-frequency modulation), both in the creb library. Be warned that the author's documentation can be cryptic however The Mondriaan abstraction provides a novel GUI for [xfm~]: http://alberto.zin.googlepages.com/puredata For artistic inspiration, I would highly recommend Kevin Drumm's Imperial Distortion CD, which was composed using very simple filter/EQ feedback loops. Raphael Toral's Aeriola Frequency and Cyclorama Lift 3 CDs also use a no input technique of delays and equalizers, as do all of Toshimaru Nakamura's famous No Input Mixer recordings (although he uses a digital delay looper extensively to create rhythmic patterns). Good luck! D. Jerome Covington wrote: I'm interested to know who's been working with feedback, and if anyone has any patches they've developed, or that others have developed that they think is exemplary. -- ::: derek holzer ::: http://blog.myspace.com/macumbista ::: http://www.vimeo.com/macumbista ::: ---Oblique Strategy # 87: Imagine the music as a moving chain or caterpillar ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] about mtx_^ and matrix line
Hello, I've got a problem with the matrix object named [mtx_.^] : is there any name for it so that I can create it ? (such as [mtx_colon] as a replacement to [mtx_: ] - this is NOT a smiley! Then, I was wondering if there were any such feature as [matrix~] left-most inlet line input in the [matrix] object that would interpolate until we reach the target values ? PD-extended 041-4 Ubuntu 8.04 ++ OH -- Olivier Heinry olivier ( escargot ) heinry ( point ) fr ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] problem with pdvjtools
Ooops! new ubuntu 9.04, perhaps i should wait for a specific build for Jaunty? From: husk [hus...@gmail.com] Sent: Tuesday, September 15, 2009 6:36 AM To: Pagano, Patrick Cc: Hans-Christoph Steiner; ydego...@gmail.com; PD List Subject: Re: [PD] problem with pdvjtools Pagano, Patrick wrote: pdvjtools.deb with pdp_frei0r does not work. it crashes every time. FYI. Wich system are you using? i tried a bunch of times and tried to make a light joke pdp_freeframe still works though videogrid no worky pp husk ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] problem with pd-extended 0.41.4
Hans-Christoph Steiner wrote: On Sep 14, 2009, at 8:09 AM, ydego...@gmail.com wrote: ola, precisely, there are _too_ many discussions on this topic, and i don't know the actual state of it... subsidiary question : do i neeed pd-extended ( from which version on ? ) to use namespaces and inspect the mapping library ? Probably not, but I use Pd-extended... gosh, what an answer so we're definitely in the blur of what are the differences between pd + externals and pd-extended. my problem now is that idon't know what to recommend to people in workshops ... i don't know what's there ( and don't have time to read all the discussion about pd-extended, sorry ) sevy ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Help with patch needed: keyname/route + textfile/gem
Quoth Jack, on 14/09/09 19:25: Or, this patch can help you (actually, i don't know what you are looking for ;) ++ Jack Thanks for those patches Jack. I don't know much about gem but I'm learning! I'm working with a text file of 6000+ words and what I really want is to have the first 10 lines or so displayed in a gem window (fullscreen eventually) which then scrolls down when certain keys are pressed. The commas are fixed thanks to your patch, however I now have the following problems: 1) Apostrophes are not printed properly in the gem window 2) I've switched to the laptop for running this patch and the gem window is really buggy. it has no border and when the window is destroyed it leaves black patches behind. Is this a problem with gem or xorg / xserver? ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Help with patch needed: keyname/route + textfile/gem
Date: Tue, 15 Sep 2009 15:29:36 +0100 From: James Dunn ja...@4thharmonic.com Subject: Re: [PD] Help with patch needed: keyname/route + 2) I've switched to the laptop for running this patch and the gem window is really buggy. it has no border and when the window is destroyed it leaves black patches behind. Is this a problem with gem or xorg / xserver? mmm.. Probably. Have you tried to deactivate all visual effects from appereance preferences? which video card and distro you have? M -- Marco Donnarumma aka The !S.A.D! Independent New Media Arts Professional, Performer - Roma, IT LAB: http://www.thesaddj.com | http://www.flxer.net EVENT: http://www.liveperformersmeeting.net ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] YUV v/s RGBA
Quoting Andres Ferrari an...@yahoo.com: hello, i am trying to use pix_mask with 2 movies. the movies were encoded in RGBA colorspace (codec planarRGB) for .mov files. but when I open the video the pd console show that is not possible use pix_mask with 2 YUV movies... if I use open in pix_film (or pix_movie) with the argument RGBA...the pix_alpha works...but the quality is horible. the same happens with pix_alpha, pix_takealpha and pix_coloralpha. maybe this objects works only with still images in jpg?? maybe I need other codecs for my movies?? maybe I have to create the movie with his own alpha channel?? i don't know...please help me. (GEM 0.91 OSX 10.4 PPC) on OSX, the default colorspace is YUV: all films/videos will be presented in YUV. use [pix_rgba] to convert any pixes into RGBA. or use [colorspace RGBA( message to [pix_film] to decode directly into RGBA. fgmasdr IOhannes This message was sent using IMP, the Internet Messaging Program. bin2nSCcosJpU.bin Description: Öffentlicher PGP-Schlüssel ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Feedback discussion
Hey Guys, sti For artistic inspiration, I would highly recommend Kevin Drumm's Imperial Distortion CD, which was composed using very simple filter/EQ feedback loops. Raphael Toral's Aeriola Frequency and Cyclorama Lift 3 CDs also use a no input technique of delays and equalizers, as do all of Toshimaru Nakamura's famous No Input Mixer recordings (although he uses a digital delay looper extensively to create rhythmic patterns). Great list .. I will have to check them out. I'd also recommend Henrik Rylander's Traditional Arrangement of Feedback. It gets me rocking out every time. Dan Wilcox danomatika.com robotcowboy.com ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] problem with pd-extended 0.41.4
On Sep 15, 2009, at 8:24 AM, ydego...@gmail.com wrote: Hans-Christoph Steiner wrote: On Sep 14, 2009, at 8:09 AM, ydego...@gmail.com wrote: ola, precisely, there are _too_ many discussions on this topic, and i don't know the actual state of it... subsidiary question : do i neeed pd-extended ( from which version on ? ) to use namespaces and inspect the mapping library ? Probably not, but I use Pd-extended... gosh, what an answer so we're definitely in the blur of what are the differences between pd + externals and pd-extended. my problem now is that idon't know what to recommend to people in workshops ... i don't know what's there ( and don't have time to read all the discussion about pd-extended, sorry ) Oops, sorry, the 'not' was NOT supposed to be there. So what I meant to say is: You probably can do that stuff in other/custom distros, but I don't really know since I use Pd-extended. .hc kill your television ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] $0 of parent patch
hi, I am getting old and lazy.. I forgot, whether it is possible to get the parent patch's value for $0. (other than passing it as an argument...) thanks, marius. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] $0 of parent patch
oops, I already got it, [parentdollarzero] from iemlib. m. 2009/9/15 marius schebella marius.schebe...@gmail.com: hi, I am getting old and lazy.. I forgot, whether it is possible to get the parent patch's value for $0. (other than passing it as an argument...) thanks, marius. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] [rtcmix~] object?
Has anyone built/ported [rtcmix~] by Brad Garton for Pd? ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Feedback discussion
On Tue, 15 Sep 2009, Derek Holzer wrote: as you probably discovered, you need to use a send~/receive~ pair or other type of one-block delay to make any kind of feedback in Pd You don't need it to be one block...? For one, feedback in the digital realm is never instantaneous, Instantaneousness is a myth. It does not exist in nature. If you ever wondered why computer clock speeds stopped increasing recently... well, that's the reason. but in the audio world, in which everything is in kHz, you wouldn't notice that often, because the scale of hearing is much larger than the scale of signal propagation. because no code can compute it's output using that exact same output as its input (discrete/sampled time). Use Mathematica. You will find out that it can figure out simultaneity equations using algebraïc manipulation, which is a digital-only concept. The only way you can compute actual instantaneous equations in analogue gear is if you use your analogue gear to build enough digital gear to be able to run Mathematica. But for audio, a straight mapping of signal theory might appear instantaneous in almost all cases... due to scale. In the analog realm, as in real life, things can and do simultaneously affect each other (continuous time). This analog realm, just like this real life, are completely foreign to the physics of the last 100 years. This makes sense since a filter is in fact a small feedback system of it's own which cancels out or reinforces various phases of a wave! Not all filters are feedback systems... for example, [rpole~] uses feedback, but [rzero~] doesn't. So this was the second turn-off from digital feedback systems--that I couldn't always rely on them to work! Ow, I don't know how you can rely on your analogue gear to work... I suppose you keep room temperature very close to constant, and you put the whole thing in a huge faraday cage, etc. One big reason for using digital gear is that it's so much more predictable. Most filters or delays in Pd, for example, throw a nan error at that point and the signal chain breaks down. If it does a NaN in the digital realm, it does a NaN also in signal theory, which means it does a NaN in Maxwell theory, which means Maxwell theory can't explain it, yet something happens. Therefore Maxwell theory is at least a bit off from the real world, and so this is another example of why you shouldn't confuse signal theory and real world. I figured this out in grade 13 when they showed us Maxwell equations and there were derivatives of things like resistance, but while you plug a wire, the resistance changes suddenly, and this causes a NaN in the derivative, and Maxwell theory offers no way to figure out what will happen at that time. Obviously, the teacher and the book both conveniently worked around those hurdles by ignoring them... provided no-one asks how to compute the voltage of the spark that comes out by plugging a certain wire in a certain circuit. Frank Barknecht posted a waveshaper to do soft clipping somewhere in the archives once, that might be an interesting patch to look at, since what it does is gradually taper off values as they approach the max/min values, instead of hard clipping them as the [clip~] object would. I mention [expr~ tanh($v1)] rather often (?), and I'm not the first one to use it. I suspect that it's rather close to how capacitors saturate, but still somewhat off... (I think I recall capacitors saturate more like negative exponentials...) _ _ __ ___ _ _ _ ... | Mathieu Bouchard, Montréal, Québec. téléphone: +1.514.383.3801___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] problem with pdvjtools
Hi! Ooops! new ubuntu 9.04, perhaps i should wait for a specific build for Jaunty? You can find new deb packages at http://hangar.org/pdvjtools Pagano, Patrick wrote: pdvjtools.deb with pdp_frei0r does not work. it crashes every time. FYI. Wich system are you using? i tried a bunch of times and tried to make a light joke pdp_freeframe still works though videogrid no worky pp husk Actually we are testing the packages, so that bugs, comments and suggestions are welcome. thanks, sll ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] new GUI screenshots
On Mon, 14 Sep 2009, Jonathan Wilkes wrote: One of slightly annoying things about the console is that has a large, awkward default size that makes it likely to get covered up when there are lots of subpatches open. You can avoid having lots of subpatches open, by making judicious use of the GOP. You can also accept windows covering each other, make them all full-screen, and use Alt+tab to switch between them. You can split the screen in your mind such that you don't ever put a subpatch on the left side of the screen where you put your console. (I often do that) Would it be possible to get the console to pop-up when a message gets printed? By pop-up, I mean brought in front of all the other open patches, but behind the patch that has the focus. Using pop-ups instead of the console means you can't select the text of the message, you can't keep it for later, and you can't decide how long it stays on screen. Well, it doesn't mean that, but if someone replaced the console by popups, I'd expect them to make those three mistakes, and deny that they are mistakes. But I suppose that there are good possible popup-based solutions that could be tried, hybridised in various ways with the popups. I had made a first sketch like this: http://artengine.ca/desiredata/gallery/find_last_error.png in which the red phylactere appears when you do find last error. I had other ideas but I didn't implement them. It doesn't replace the console and it works only for posts that are errors (thus not for warnings and other info). _ _ __ ___ _ _ _ ... | Mathieu Bouchard, Montréal, Québec. téléphone: +1.514.383.3801___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] new GUI screenshots
On Mon, 14 Sep 2009, Ivica Ico Bukvic wrote: If you dislike vanilla appearance of Pd on Linux as much as I do, please try the pd.tk file I sent out sometime last week on this list and report any bugs. I have no idea how much you dislike it, but I won't work on pd.tk anymore. If you read early 2004 pd-list archives, you'll find some of those hacks. Hans has pointed a few that affect other platforms (this one was designed to provide minimal changes while making GUI more 21st century I got a message from the future... they said OSX and Vista don't look 21st century enough... they claimed to be living in the year 2015. _ _ __ ___ _ _ _ ... | Mathieu Bouchard, Montréal, Québec. téléphone: +1.514.383.3801___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] new GUI screenshots
If you dislike vanilla appearance of Pd on Linux as much as I do, please try the pd.tk file I sent out sometime last week on this list and report any bugs. Hans has pointed a few that affect other platforms (this one was designed to provide minimal changes while making GUI more 21st century and without affecting Windows or OSX, apart from the few reported bugs) but other than that it appears rock solid here. Bear in mind that it does require tcl/tk 8.5 with antialiasing enabled. I'm trying to try it... Downloaded http://lists.puredata.info/pipermail/pd-list/attachments/20090904/4c8114df/a ttachment-0001.tk Now is there another way than putting it where my pd install is? Right now it doesn't seem to find pd. Thanks, Andras You should rename that into pd.tk and then copy it into the Pds bin directory (e.g. /usr/lib/pd/bin/ or /usr/local/lib/pd/bin/). You should also back-up the old version of pd.tk that resides in those folders before overwriting it in case you end-up not liking this version. Hope this helps! Best wishes, Ico ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] [PD-announce] Thirty-first meeting of the Pd club of Montréal, QC (schedule)
On Sat, 5 Sep 2009, Mathieu Bouchard wrote: la trente-et-unième rencontre du club PureData de la ville de Montréal aura lieu le mercredi 16 septembre 2009 de 18h30 à 22h30, dans les locaux de Vidéographe-Production, situé au 4550 Garnier (entre Mont-Royal et Gilford). apportez vos portables. Au programme: Alexandre Quessy: Purity Création dynamique de patches en python Purity est une librairie Python pour la création dynamique de patches PureData. L'objectif est de pouvoir utiliser la puissance de PureData pour faire de la programmation sonore, mais sans devoir utiliser son interface graphique. La syntaxe claire et intuitive de Python peut alors être mise à profit afin de créer des patches à l'algorithmie avancée. Tout le traitement des chaînes de caractères, les interfaces graphiques de contrôle et le rendu visuel peuvent être relégués au langage Python. L'objectif à plus long terme de l'auteur est de créer des interfaces programmatiques pour le son en Python qui pourront être implémentées avec plusieurs engins, comme PureData, tels que Csound, Supercollider, Chuck et STK. Purity est en phase de prototypage alpha. Les commentaires sont les bienvenus. http://code.google.com/p/toonloop/wiki/Purity Thomas O. Fredericks: pdmtl-abstractions 2 Est-ce qu'il y a une suite après pdmtl-abstractions? Appel de candidatures. Présentation d'un nouveau browser d'externes qui fonctionne avec des tags. Présentation de nouveaux externes et surtout du nouveau système de state saving ultra puissant. Patrick S. Coulombe: Guitare à crayon L'idée derrière la Guitare à crayon est de pouvoir peindre et jouer de la musique avec le même instrument. C'est une guitare usb sur mesure, faite à l'aide de logiciels libres: notamment, PureData pour le son, ainsi que gimp, blender et flash pour le visuel. Notez qu'il reste du temps pour des présentations de dernière minute (ou autres propositions). _ _ __ ___ _ _ _ ... | Mathieu Bouchard, Montréal, Québec. téléphone: +1.514.383.3801___ Pd-announce mailing list pd-annou...@iem.at http://lists.puredata.info/listinfo/pd-announce ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] new GUI screenshots
On Tue, 15 Sep 2009, Mathieu Bouchard wrote: On Mon, 14 Sep 2009, Ivica Ico Bukvic wrote: If you dislike vanilla appearance of Pd on Linux as much as I do, please try the pd.tk file I sent out sometime last week on this list and report any bugs. I have no idea how much you dislike it, but I won't work on pd.tk anymore. If you read early 2004 pd-list archives, you'll find some of those hacks. Sorry, bad edition of my email. I deleted a sentence while I was shuffling some others around. I meant that I made some pd.tk hacks back in early 2004 and that you can find about them in the pd-list archives. Now that I think of it, several of them involved a bit of C code as well. For example, I had added a console to the main window... _ _ __ ___ _ _ _ ... | Mathieu Bouchard, Montréal, Québec. téléphone: +1.514.383.3801___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] new GUI screenshots
On Tue, 15 Sep 2009, András Murányi wrote: 2009/9/15 Hans-Christoph Steiner h...@at.or.at Btw I can see it's a snapshot of 2009/09/06. Do I understand right that 1) dd is being actively developed these days 2) some code from it gets its way to pd? DD is GPL and Pd is BSD so code can only flow Pd-DD. Wow. Why? Oh, don't worry: it's not true. However, using different licenses in the same program means all licenses have to be respected at once, and if you do that, then effectively the whole program has to be handled as if it were all GPL'ed, except for the fact that you can take any SIBSD part of it and handle it under SIBSD license. This is because GPL basically includes SIBSD's clauses, not the other way around. Hans has not mentioned the other possibilities: making Pd partially GPL'ed, or asking me (and Chun) for relicensing some parts to SIBSD, or invoking fair use (for small snippets), etc. Note: SIBSD = the 1999 version of the BSD license. _ _ __ ___ _ _ _ ... | Mathieu Bouchard, Montréal, Québec. téléphone: +1.514.383.3801___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] YUV v/s RGBA
On Mon, Sep 14, 2009 at 4:40 PM, Andres Ferrari an...@yahoo.com wrote: hello, i am trying to use pix_mask with 2 movies. the movies were encoded in RGBA colorspace (codec planarRGB) for .mov files. but when I open the video the pd console show that is not possible use pix_mask with 2 YUV movies... YUV has no alpha channel. maybe this objects works only with still images in jpg?? It works with movies in RGBA colorspace. maybe I need other codecs for my movies?? The 'None' codec will give uncompressed RGBA. Or try Photo-JPEG at 100% quality (any other quality level is YUV). maybe I have to create the movie with his own alpha channel?? The best way to use alpha channels is pre-render them in an off line app like Photoshop or After Effects. The alpha channel can hold any values, and they don't have to be related to the image at all (alpha has no set meaning in image processing). pix_alpha just does a very simple average of R G and B which might not give you the results you want. You could do an extreme setting for pix_contrast/saturation before it to remove all color (saturation 0) and create black or white pixels with a very high contrast value. This would give a mask like the dancer.jpg used in the example patches based on the brightness of the pixels. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] new GUI screenshots
Do any of the metering correspond to a standard (PPM, VU, BBC, etc)? Or are they ProTools style mystery meters? On Mon, Sep 14, 2009 at 7:48 PM, Hans-Christoph Steiner h...@at.or.atwrote: On Sep 14, 2009, at 2:40 PM, Mathieu Bouchard wrote: On Sat, 12 Sep 2009, András Murányi wrote: It looks so nice on the Mac...! ;o) It's a pity it looks way less 21th Century here on Hardy... Well, at least Carmen's peak-meters made it into a mainstream branch. (I didn't actually check that they are the same, maybe they aren't...) They are IEMGUI peak meters. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Feedback discussion
As I said already, I'm not interested in predictability. Analog nonlinearity is interesting to me, much more so than digital pseudo-randomness. But my main interest is in being able to maintain a live performance in the midst of all this unpredictability. When digital stuff fails, it tends to fail catastrophically--in other words NO SOUND. Game over. The errors that I get from analog instabilities are much more interesting than anything I've managed to predictively compute. And even when they aren't, they still make noise, unlike an overloaded digital filter or software crash, which just shuts everything down. But now that you mention it, a huge Faraday cage to perform my live sets in wouldn't be such a bad idea. Might protect me from unsympathetic audience resonances! D. Mathieu Bouchard wrote: Ow, I don't know how you can rely on your analogue gear to work... I suppose you keep room temperature very close to constant, and you put the whole thing in a huge faraday cage, etc. One big reason for using digital gear is that it's so much more predictable. -- ::: derek holzer ::: http://blog.myspace.com/macumbista ::: http://www.vimeo.com/macumbista ::: ---Oblique Strategy # 80: Go to an extreme, come part way back ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Feedback discussion
I can't really say from a supra-atomic standpoint I could agree with you, but I'd settle for the speed of light, or even the remotely distant figure of the response time of an op-amp. Which is quite a bit faster than your average blocksize or even a single discrete sample--assuming that a complex digital system like Pd could react effectively at single-sample speed. Really though, must everything really be so complicated Mathieu? Not everything can be so easily described with mathematics. I also like to sip single malt whiskey during the last evening hours of a summer headed towards autumn... Sorry to stir up the digital goblins, folks. I merely wanted to share my (unsatisfactory) experiences with feedback scenarios in Pd. Your Mileage May Vary. D. Mathieu Bouchard wrote: Instantaneousness is a myth. It does not exist in nature. -- ::: derek holzer ::: http://blog.myspace.com/macumbista ::: http://www.vimeo.com/macumbista ::: ---Oblique Strategy # 148: State the problem in words as clearly as possible ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
[PD] convert number to pass it as argument to canvas
Hi list, I just want to know how can send a number as a cnv argument. I want to put a number in the label of a canvas, but it shows me Bad argument, in what must I convert it? Thanks. Ricardo ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] convert number to pass it as argument to canvas
You can do this: [makefilename %d] | [label $1( | [s your_canvas] --- On Wed, 9/16/09, Ricardo Dueñas Parada rduen...@gmail.com wrote: From: Ricardo Dueñas Parada rduen...@gmail.com Subject: [PD] convert number to pass it as argument to canvas To: pd-list pd-list@iem.at Date: Wednesday, September 16, 2009, 4:28 AM Hi list, I just want to know how can send a number as a cnv argument. I want to put a number in the label of a canvas, but it shows me Bad argument, in what must I convert it? Thanks. Ricardo ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] convert number to pass it as argument to canvas
thank you. 2009/9/15 Jonathan Wilkes jancs...@yahoo.com: You can do this: [makefilename %d] | [label $1( | [s your_canvas] --- On Wed, 9/16/09, Ricardo Dueñas Parada rduen...@gmail.com wrote: From: Ricardo Dueñas Parada rduen...@gmail.com Subject: [PD] convert number to pass it as argument to canvas To: pd-list pd-list@iem.at Date: Wednesday, September 16, 2009, 4:28 AM Hi list, I just want to know how can send a number as a cnv argument. I want to put a number in the label of a canvas, but it shows me Bad argument, in what must I convert it? Thanks. Ricardo ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] Feedback discussion
Of course, feedback does not require simultaneity...nor does it always imply an acoustic system (though I'm guessing that's what you're referring to, Derek). One nice thing about those digital goblins is that they can feed-back *information* about the music. More interestingly, they can feed-back *permuted* information about the music, kind of like a delay line with ideas of its own. Phil Stone www.pkstonemusic.com Derek Holzer wrote: I can't really say from a supra-atomic standpoint I could agree with you, but I'd settle for the speed of light, or even the remotely distant figure of the response time of an op-amp. Which is quite a bit faster than your average blocksize or even a single discrete sample--assuming that a complex digital system like Pd could react effectively at single-sample speed. Really though, must everything really be so complicated Mathieu? Not everything can be so easily described with mathematics. I also like to sip single malt whiskey during the last evening hours of a summer headed towards autumn... Sorry to stir up the digital goblins, folks. I merely wanted to share my (unsatisfactory) experiences with feedback scenarios in Pd. Your Mileage May Vary. D. Mathieu Bouchard wrote: Instantaneousness is a myth. It does not exist in nature. ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
