Pd-list November 2007

pd-list@lists.iem.at

135 participants
250 discussions

unit impulse without [dirac~]
by Andy Farnell 18 Nov '07

18 Nov '07

The [dirac~] object generates a unit impulse (at the sample position given by its input) I'm trying to think of simple ways to do it in plain vanilla. Frank gave a one way before, differentiating a step impulse with [rzero~], can anyone think of other ways (I'm sure there's more than one) cheers, Andy -- Use the source

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error: deprecation warning: you should only use lists for list data
by Roman Haefeli 18 Nov '07

18 Nov '07

hi all error: deprecation warning: you should only use lists for list data since a few days/weeks i sometimes get this error, or more correct: warning. i found that i can trigger it by a loading a patch in netpd. however, 'find last error' didn't want to show me the source of this warning. my questions: - what does it actually need to trigger it? - is it pd or an external? (for some strange reason, this warning appeared suddenly without having recompiled pd) - in either case, is it know, which object causes it? can i probably find it in the sources? roman ___________________________________________________________ Der frühe Vogel fängt den Wurm. Hier gelangen Sie zum neuen Yahoo! Mail: http://mail.yahoo.de

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directory layout for pd-extended on OS X
by Andrew Brouse 17 Nov '07

17 Nov '07

On Sat, 17 Nov 2007, pd-list-request(a)iem.at wrote: > Actually, that reminds me, I would like to have the Pd-extended > package use a directory for people to install their own externals. > On Mac OS X, it's /Library/Pd following those conventions. I am > thinking that /usr/local/lib/pd/ should be the user-installed stuff, > with everything going in there (i.e. help patches, binaries, and .pd > files). Then the .deb should install into /usr/lib. This means it > would conflict with the 'puredata' package that's included in Debian, > but it's the "proper" way to do it. > > .hc If you wanted to truly follow the OS X directory layout, externals and such installed by the Application should be in: /Library/Applcation Support/Pd while user-installed externals etc. would go in: ~/Library/Applcation Support/Pd Which would allow different users on the same system to have different configurations. BTW, extended is looking really nice on Leopard, no crashing here. :) Thanks for the hard work. Andrew

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Re: [PD] Moveable Type - powered by Pd
by Hans-Christoph Steiner 17 Nov '07

17 Nov '07

I cc'ed the list since I think this would be of general interest/ On Nov 17, 2007, at 3:42 AM, padawan12(a)obiwannabe.co.uk wrote: >> The Times will be displayed on 560 vacuum-fluorescent display screens >> installed in the lobby. > > That's one mighty display driver. Any idea what hardware is used to > address so many display modules? I did the Pd setup on this project, so I know the details pretty well. Basically, each screen includes an embedded GNU/Linux box on the back with a little speaker too. So each of those screens is running an instance of Pd. There is one computer that sequences the whole thing. That computer is connected to all the screen nodes via RS-485 one-to-many serial. Each screen is controlled from each node via a serial protocol using custom python code. .hc ------------------------------------------------------------------------ ---- News is what people want to keep hidden and everything else is publicity. - Bill Moyers

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Re: [PD] The sound of algae growing
by Chris McCormick 17 Nov '07

17 Nov '07

Hi, I finally found some time to put together a small demo (attached). It requires the latest version of s-abstractions which you can find here: <http://mccormick.cx/projects/s-abstractions/page/download> Best, Chris. On Sun, Nov 04, 2007 at 03:30:02AM -0800, punchik punchik wrote: > hello cool abstractions, is there any music you made > using this abstractions you can share? > > tjanks > --- Chris McCormick <chris(a)mccormick.cx> wrote: > > > Hello PdPeople, > > > > Who wants to make some fractal music? Here are two > > abstractions that > > implement a Lindenmayer system. > > <http://en.wikipedia.org/wiki/L-system> > > > > [s-ireplace] is an abstraction that takes a single > > integer and outputs a > > list of integers according to the rules specified. > > So you might send a > > message [rule 1 2 3( and then when you send a [1( > > you will get back a > > list '2 3'. > > > > [s-lsystem] uses [s-ireplace] internally to > > iteratively replace lists > > of integers with lists of integers according to > > rules defined in the > > same way as above, thus implementing a Lindenmayer > > system. > > > > Lindenmayer systems are great for generating complex > > sets of data from > > simple rules and initial values. > > > > > <http://mccormick.cx/viewcvs/*checkout*/s-abstractions/s-ireplace.pd?root=svn> > > > <http://mccormick.cx/viewcvs/*checkout*/s-abstractions/s-ireplace-help.pd?ro…> > > > <http://mccormick.cx/viewcvs/*checkout*/s-abstractions/s-lsystem.pd?root=svn> > > > <http://mccormick.cx/viewcvs/*checkout*/s-abstractions/s-lsystem-help.pd?roo…> > > > > If you want, you could also use these with Gem to > > make natural looking > > tree-like 3d structures. Check the pd-list archives > > for a previous > > implementation of that idea which used a much > > simpler Lindenmayer system > > which was not quite as flexible. > > > > Best, > > > > Chris. > > > > ------------------- > > http://mccormick.cx > > > > _______________________________________________ > > PD-list(a)iem.at mailing list > > UNSUBSCRIBE and account-management -> > > http://lists.puredata.info/listinfo/pd-list > > > > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around > http://mail.yahoo.com ------------------- http://mccormick.cx

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The sound of algae growing
by Chris McCormick 17 Nov '07

17 Nov '07

Hello PdPeople, Who wants to make some fractal music? Here are two abstractions that implement a Lindenmayer system. <http://en.wikipedia.org/wiki/L-system> [s-ireplace] is an abstraction that takes a single integer and outputs a list of integers according to the rules specified. So you might send a message [rule 1 2 3( and then when you send a [1( you will get back a list '2 3'. [s-lsystem] uses [s-ireplace] internally to iteratively replace lists of integers with lists of integers according to rules defined in the same way as above, thus implementing a Lindenmayer system. Lindenmayer systems are great for generating complex sets of data from simple rules and initial values. <http://mccormick.cx/viewcvs/*checkout*/s-abstractions/s-ireplace.pd?root=svn> <http://mccormick.cx/viewcvs/*checkout*/s-abstractions/s-ireplace-help.pd?ro…> <http://mccormick.cx/viewcvs/*checkout*/s-abstractions/s-lsystem.pd?root=svn> <http://mccormick.cx/viewcvs/*checkout*/s-abstractions/s-lsystem-help.pd?roo…> If you want, you could also use these with Gem to make natural looking tree-like 3d structures. Check the pd-list archives for a previous implementation of that idea which used a much simpler Lindenmayer system which was not quite as flexible. Best, Chris. ------------------- http://mccormick.cx

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newbie ubuntu7.10 + Pd.0.39.3
by Jérôme Abel 17 Nov '07

17 Nov '07

Hi I've not seen this topic on list archives. I'm trying to install pd extended 0.39.3 from puredata.info/downloads, but I'm not very comfortable with linux. I've just installed Ubuntu 7.10. I'm on a PC. After downloading pd extended.deb, I've some problems with dependencies. libflac7 libquicktime0 linimlib2 libmagick++9c2a imagemagick are missing. I changed my sources.list following a nice website (french) http://www.sourceslist.org/ I've done apt-get update + upgrade + apt-get install pure data + apt-get -f install Some depencendies were installed, but these dependencies are not. I've seen for Ubuntu.7.10, the good version of libflac is libflac8. I've the libflac8 correctly installed. But apparently, pd needs libflac7. How can I do ? Sorry for linux questions on pd list ... and if you have a good sources.list for multimedia + ubuntu7.10 May be a page like this would be great : http://puredata.info/Members/jmmmp/ubuntuinst/ -- Jérôme Abel http://abel.jerome.free.fr

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Re: [PD] [event] OpenLab#4 London
by ydegoyon＠free.fr 17 Nov '07

17 Nov '07

hola, too bad it is at the same time as this : http://www.mortarhate.com/products.php?cat=122 we'll be there with a few visual artists from http://c6.org maybe, we'll meet in the street. saludos from rainy norway... by the way, piksel is now transmitting : http://www.piksel.no/piksel07/streams.htm sevy [*~] wrote: > Hi all: > > We will be doing a event less than a couple of weeks time. everyone (in and around london) is welcome! see below for detail. > > cheers > > chun

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Re: [PD] Way of getting CPU load in PD
by B. Bogart 17 Nov '07

17 Nov '07

Thanks all for the feedback, Perhaps I'll look into making a set of abstractions for such thing, parsing top output in PD (as not to depend on pyx) does not seem all that fun though. I think I found the problem, and will know in 6 days. I has reinstalled the kernel and forgot to add the noapm acpi=off kernel flags to grub. Without these linux nvidia drivers are not stable. I think that is the culprit as it has caused freezes in the past (and I did notice that it was X that froze, not PD, since I was unable to kill X) FYI I only do installations in -nogui. ;) In case anyone is interested, and was not at pd-conv here is some info on the project: http://b.goto10.org/wp/?p=227 .b. John Harrison wrote: > if you have continual output to the Pd console, the symptoms are > similar to a memory leak as the console buffer is never emptied. This > has bitten me before with crashes on long-term installations. Start pd > with -stderr so the output goes to the terminal and see if it still > crashes? > > On Nov 14, 2007 4:17 PM, B. Bogart <bbogart(a)goto10.org> wrote: >> Hey all, >> >> Anyhow have an abstraction laying around that gives the current CPU >> load? I'm trying to track down a freeze in my long term installation, >> and so far I have no indication of why it froze. Perhaps an ever >> increasing CPU load could give me a suspect... >> >> Thanks, >> B. Bogart >> >> _______________________________________________ >> PD-list(a)iem.at mailing list >> UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list >> >

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[pd] upsampled readsf~
by hard off 17 Nov '07

17 Nov '07

sorry for reposting an old topic, but i couldn't find a simple patch to demonstrate the method. how do you upsample a readsf~ so that it will write an array quickly?

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Pd-list November 2007