Pd-list November 2005

pd-list@lists.iem.at

143 participants
298 discussions

Re: [PD] The Party at the Center of the Universe
by megalegoland＠yahoo.fr 01 Dec '05

01 Dec '05

Date: Wed, 30 Nov 2005 15:10:45 -0000 X-Mailer: YahELite Content-Type: text/plain; charset=ISO-8859-1 >Hubble's law is the basis for _observing_ the expansion of the =20 >universe. Einstein introduced his cosmological constant to stop his =20 >universe from expanding because he didn't want to believe that it =20 >was. He ended up dropping it, referring to it as his biggest mistake =20 >and personally thanking Hubble. Just wondering how that discussion came in pd-list, you might talk about Doppler-Fizeau effect? I hope you are aware that it's not Hubble, but Lemaitre that has written the 'Hubble Law', and evidences shows that the red color is an intrinsic property instead of shifting effect for most of space objects, otherwise some quasars would travel faster than light...

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Re: [PD] Radeon 9800 for mac
by shreeswifty 30 Nov '05

30 Nov '05

it seems to buffer 128MB for each display. On Tue Nov 29 22:02:46 EST 2005, chris clepper <cgc(a)humboldtblvd.com> wrote: > On 11/29/05, Pat Pagano <bigswift(a)ufl.edu> wrote: >> Hi >> >> just got a radon 9800 for my desktop and was wondering if anyone >> else >> is using one for pd/GEM/pidip/PixelTango/gridflow..etc.. >> >> Seems to work pretty well though i wish i could set the buffers >> manually. > > What do you mean by 'set the buffers manually' ? > >> pretty zippy so far. > > Should work fairly well with the shaders too. > > Patrick Pagano,M.F.A Digital Media Specialist Digital Worlds Institute University Of Florida (352) 294-2082

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Pd-0.38.4-extendedRC4 for Windows and Mac OS X
by Hans-Christoph Steiner 30 Nov '05

30 Nov '05

http://at.or.at/hans/pd/installers-0.38.4-extendedRC4.html bugfixes, gem manuals and examples, and more... Now, in Windows and in Mac OS X (thought they aren't exactly synced yet). .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.

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Re: [PD] The Party at the Center of the Universe
by Pall Thayer 30 Nov '05

30 Nov '05

It ended up on the pd-list because I posted an announcement. All the source-material for the project can be downloaded and it contains a few PD files. I'm not debating who said what when. The project is really just an abstract audio/visual mapping of people on wireless networks. Theories of spacetime sparked the concept and were used to guide some of the creative aspects of it but they really don't matter in the end. It's just an aesthetic experience. It's not going to make the viewer any more enlightened about spacetime. On 30.11.2005, at 10:10, megalegoland(a)yahoo.fr wrote: > Date: Wed, 30 Nov 2005 15:10:45 -0000 > X-Mailer: YahELite > Content-Type: text/plain; charset=ISO-8859-1 > >> Hubble's law is the basis for _observing_ the expansion of the =20 >> universe. Einstein introduced his cosmological constant to stop >> his =20 >> universe from expanding because he didn't want to believe that it =20 >> was. He ended up dropping it, referring to it as his biggest >> mistake =20 >> and personally thanking Hubble. > > Just wondering how that discussion came in pd-list, you might talk > about Doppler-Fizeau effect? > > I hope you are aware that it's not Hubble, but Lemaitre that has > written the 'Hubble Law', and evidences shows that the red color is > an intrinsic property instead of shifting effect for most of space > objects, otherwise some quasars would travel faster than light... > > _______________________________________________ > PD-list(a)iem.at mailing list > UNSUBSCRIBE and account-management -> http://lists.puredata.info/ > listinfo/pd-list -- Pall Thayer palli(a)pallit.lhi.is http://www.this.is/pallit

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Re: [OT] Edirol FA-101 under Linux
by Stefan Turner 30 Nov '05

30 Nov '05

> An alternative to consider might be a small barebone > system, where you > can use a good and inexpensive PCI card like the > M-Audio Delta 1010LT > directly. You know, something like the MSI Hetis > 915: > http://www.msi.com.tw/program/products/slim_pc/slm_index.php Thanks Frank that's an excellent idea, especially as I was hoping to (later) upgrade my laptop. Just one question: how easy is it to set up Linux (specifically Fedora if possible) to automatically login, and load up Jack and PD, for when I leave the screen and keyboard at home during gigs? And how do you tell it to shutdown??? Cheers Stefan Turner ___________________________________________________________ To help you stay safe and secure online, we've developed the all new Yahoo! Security Centre. http://uk.security.yahoo.com

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Re: [PD] help with rfft~
by Stefan Turner 30 Nov '05

30 Nov '05

I think the standard way of convolution - or at least the one I use - which gives ok results, is to have one 'carrier' signal, which is filtered by the 'modulator' signal. (I think that's what they're called.) Basically, first get the magnitude of the modulator: sqrt(real^2 + imag^2). Then: output real = carrier real * modulator magnitude output imag = carrier imag * modulator magnitude The outputs go into a [rifft~]. Remember, both carrier and modulator must be windowed first, e.g. with hanning, and you must overlap-and-add by a factor of 4. Good block sizes are around 4096, e.g. [block~ 4096 4]. ___________________________________________________________ To help you stay safe and secure online, we've developed the all new Yahoo! Security Centre. http://uk.security.yahoo.com

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vorbis_info_clear (Gem / linux) followup
by Ian Nault 30 Nov '05

30 Nov '05

-i just want to say thank you so much andre, your post really helped... -a couple notes i'd like to add, addressing problems i had: -if you're using synaptic, you can use that fine to get the list of libs below, also make sure you have openGL installed. -if you're using synaptic, do NOT install Gem through synaptic, this is asking for trouble (chances are this is how you got the vorbis_info_clear message to begin with). if you have tried this, go into synaptic and remove Gem. use "mark for Complete Removal", not just removal, or else you'll still get the vorbis error after compiling. -use the cvs step below! this will give you the /Gem and /Gemlibs folders you need. if you try to use the iem packages, when you go into /gem-0.9.0/src you will not be able to autoconf! use the CVS version, and go into /Gem/src and you should be fine. -depending on your installation, you may have to "apt-get install cvs", "apt-get install autoconf" and "apt-get install make". when i initially tried to cvs/autoconf/make i didn't have those commands; if you get this problem too try those and see if it works then. -one final step andre left out, at least in my case: after compiling, copy Gem.pd_linux from /Gem/src to /usr/lib/pd/extra , otherwise when you run pd -lib Gem , it won't be able to load the Gem objects. ultimately for me the two biggest problems were not fully removing Gem after trying the synaptic (apt-get) install, and then later not realizing i needed to copy Gem.pd_linux over. i'm a linux newb so forgive my amateurish explanations, but hopefully this helps some. this was also installed on pd with NO externals, so if you get the list of libs below in synaptic it will get all the dependencies for you (i.e. i didn't do pdp and pidip first like andre did and i was fine) On Mon Nov 21 13:37:04 CET 2005 andre schmidt wrote: i compiled gem without problems from cvs in ubuntu/breezy (note, i compiled pd, pdp and pidip first, so dunno if they had some depencies that are not listed here) depencies: libgl-dev ftgl-dev libtiff4-dev libjpeg62-dev libmpeg3-dev libavifile-0.7-dev libquicktime-dev libdv4-dev 1. cvs -z3 -d:pserver:anonymous at cvs.gem.iem.at:/cvsroot/pd-gem checkout Gem GemLibs 2. cd Gem/src 3. autoconf 4. ./configure 5. make then if you want, "sudo make install" or "sudo checkinstall" (if you checkinstall, then you can also remove it with dpkg)

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PDDP Meeting Notes - November 29th 2005
by B. Bogart 30 Nov '05

30 Nov '05

Here are my notes from today's meeting: PDDP Meeting Nov 29th 2005 Looked at template 8b and agreed it is good. Minor changes: * Add a back button for page turning * make the colours more pale HCS will post his ideal colours for the template and we'll compromise. HCS will make a mockup of the all_about content and BB will design a template for it, based on the template 8b style, with the probable layout of template 6. Aiming to have a draft for the -about.pd patch by next week. We agreed that having a number of flexible categories is best, we can also include misc sub-folders for catch all. again the purpose of this "browser" is for a learner to get a lay of what modules are available and what is possible. The searching tools will be used much more often. "video" will match all the different ways of using video in PD. Talked a bit about bottom-up and top-down approaches to teaching PD. posted some comments to the philosophy wiki: https://puredata.org/dev/pddp/WorkshopPhilosophy Will talk primarily about philosophy next week. Next meeting will be at the same time: * 11.00 Pacific Time * 14.00 Eastern Time * 19.00 UTC * 20.00 Central European Tuesday December 6th. The turn-out was quite a bit smaller today, which means it was easy to decide on things. If you'd like your opinion known in terms of how PD documentation & workshops are developing come to the meeting! b..

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Re: [PD] Re: [OT] Edirol FA-101 under Linux
by Chris McCormick 30 Nov '05

30 Nov '05

On Wed, Nov 30, 2005 at 03:42:55AM +0100, pd-list-request(a)iem.at wrote: > > Message: 3 > Date: Tue, 29 Nov 2005 23:39:02 +0100 > From: Frank Barknecht <fbar(a)footils.org> > Subject: Re: [PD] Re: [OT] Edirol FA-101 under Linux > To: pd-list(a)iem.at > Message-ID: <20051129223902.GJ17327(a)fliwatut.scifi> > Content-Type: text/plain; charset=us-ascii > > Hallo, > js hat gesagt: // js wrote: > > > On 11/29/05, Frank Barknecht <fbar(a)footils.org> wrote: > > > I guess, the > > > majority of Linux machines running worldwide do so as servers, often > > > without screen and keyboard. > > > > this is an interesting point- i wonder how you come to your conclusion > > [and what supporting data you have]. i run several linux boxes- all of > > them with screens and keyboard. but i do know of several linux boxes > > set up as you indicate. > > No numbers, as I wrote, it's just a guess, which I dare to do from > looking at the fact, that although Linux is becoming more and more > popular as a desktop system, it's traditional home as a Unix-ish > system is the server room (or farm). Some time ago people used to say "between 0.5% and 2% of desktop machines are running Linux". More recently I have heard "between 2% and 5% of desktop machines are running Linux." People used to also say "70% of internet servers are running Apache [and presumably Linux]." but I've heard that That Big Bad Company has been making great gains recently. Sketchy at best but probably gives you a ballpark. Though the two can't really be correlated of course because they share a different base. > Lies, damn lies and statistics. Indeed. Chris. ------------------- chris(a)mccormick.cx http://mccormick.cx

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Re: [PD] help with rfft~ (fwd)
by Mathieu Bouchard 30 Nov '05

30 Nov '05

What's this with not receiving a copy of the mails I send to pd-list ? But only *sometimes* ? Does anyone get this mail? ---------- Forwarded message ---------- Date: Tue, 29 Nov 2005 18:44:52 -0500 (EST) From: Mathieu Bouchard <matju(a)artengine.ca> To: thewade <pdman(a)aproximation.org> Cc: Georg Holzmann <grhPD(a)gmx.at>, pd-list <pd-list(a)iem.kug.ac.at> Subject: Re: [PD] help with rfft~ On Tue, 29 Nov 2005, thewade wrote: > So which is better for convolution: polar or rectangular? Some processing must > happen for convolution, because just multiplying the real outputs of two rfft~ > objects and the two complex outputs makes for very poor convolution. Do most > convolution tools (PD or otherwise) convert to polar, multiply the > frequencies, divide by niquist (I have no idea here), then use one of the the > signal phases and convert back to rectangular for rifft~, or is there some > oter way? excuse me? multiplying the frequencies? i think you mean, for each frequency, multiply the amplitudes together. multiplication of two complexes x+y*i and x'+y'*i in cartesian representation is: x'' = x*x' - y*y' y'' = x*y' + y*x' Then with a polar representation: x = r*cos(a) y = r*sin(a) It becomes as easy as: a'' = a+a' r'' = r*r' Or even easier in complex log representation: s+a*i = log(x+y*i) s = log r a'' = a+a' s'' = s+s' However, it only makes sense if you are going to make many multiplications between polar forms. If not, then the sin,cos conversions and their inverses r=sqrt(x*x+y*y),a=atan2(y,x) become more of a burden than a shortcut. ____________________________________________________________________ Mathieu Bouchard - tél:+1.514.383.3801 - http://artengine.ca/matju Freelance Digital Arts Engineer, Montréal QC Canada

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Pd-list November 2005