Pd-list September 2006

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mac intel
by Max Neupert 09 Sep '06

09 Sep '06

hi list, what do you suggest to do for an mac intel pd/gem install? thanks, max

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Re: [PD] Arduino : pduino digital outs ?
by Georg Holzmann 09 Sep '06

09 Sep '06

Hallo! again with the right subject ... > I was really happy to see it work finally! > > however... > after a few minutes pd crashes :s > > here are a few observations: > > flatspace: can't load library in C:/pd > what is 'flatspace'? > [import] loaded library: flatspace this is only from H.C.S. namespace idea - you can ignore the error message ! > Now it works! > everything is functional for a while, but then pd crashes. > > I try again... > It works, > if i send |close( to arduino while running, i get: > > Write error, maybe TX-OVERRUNS on serial line > WriteFile error: 6 > > sending it |open 7( again it continues to work as if nothing happened. > after 10 minutes, pd crashes again... > I can't copy paste the windows error report... hm - this seems to be a problem with comport on windows - do you have the latest comport for windows ? I had it running here on linux over a day - but I saw a similar error message on an other linux pc too, then restarting the computer helped ... LG Georg -- Der GMX SmartSurfer hilft bis zu 70% Ihrer Onlinekosten zu sparen! Ideal fÃ¼r Modem und ISDN: http://www.gmx.net/de/go/smartsurfer -- Der GMX SmartSurfer hilft bis zu 70% Ihrer Onlinekosten zu sparen! Ideal fÃ¼r Modem und ISDN: http://www.gmx.net/de/go/smartsurfer

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Re: [PD] Arduino : pduino digital outs ?
by Georg Holzmann 09 Sep '06

09 Sep '06

Hallo! > I uploaded the firmware 'Pduino modified by dmorelli' to the arduino > then open pd patch 'arduino-help.pd' (see attachment) > > All I can get to work is analog ins. we fixed some bugs last week and also made a new help file, so please download the following files from pd-cvs/externals/hardware/arduino: - the firmware - arduino.pd - arduino-help.pd LG Georg -- "Feel free" – 10 GB Mailbox, 100 FreeSMS/Monat ... Jetzt GMX TopMail testen: http://www.gmx.net/de/go/topmail

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PDA & Archos PMA430
by juto aviten 09 Sep '06

09 Sep '06

Hello friends, I just got this kind of multimedia embarqued system. this one is Archos PMA430, it's based on qtopia linux OS (maybe I will switch one day to openPMA)... but I least I try to install PDA on it... so I read different things on the subject but maybe people here have some experiences & knowledge with this kind of device. I took the .ipk tcl/tk & pda on the Gunter website... and when I try to install it I got this message : /bin:/sbin/:/usr/bin:/usr/sbin/:/opt/Qtopia/bin install ipkg returned false for /progfs/ ipkg_install_file:ERROR unpacking control.tar.gz ... I've read that there is something related to where the .ipk will install the soft and where it tooks the lib in Qtopia... maybe some of you had experiences the same, if you got an idea on to resolve that & install PDA, it could be useful!!! thanks a lot cheers julien

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Real-time Linux; hard req. and suggestions?
by Charles Henry 09 Sep '06

09 Sep '06

Hello, all, We all have probably experienced some interruptions in sound when using Pd. My usual solution has been to increase the size of the audio buffer til the interruptions occur less frequently, and I've tried using -rt. I've tried hacking the kernel (the easy way--menuconfig) to enable preemptible options. Somehow, it's just not satisfying. I've started learning a bit about alternative kernels for real-time linux, and I've got some masochistic notion to investigate Linux From Scratch. One of my friends says this is his favorite way to build a system...I have a lot to learn. I'm currently using Fedora Core 4 with the 2.4.19 kernel on a 1.6 GHz Sempron processor (could be upgraded to an Athlon64). I'm not sure which system specs are most important for getting good throughput, front side bus, memory access speed...how to balance them? The graphical interface run by Xwindows puts more demands on the system. I admit to not knowing enough about how an OS really works, but one concern I have is that the graphical rendering can hurt audio performance. If I follow through on this idea, I'll learn more as I go. I've been reading some articles on www.linuxdevices.com and www.realtimelinuxfoundation.org which of course raised some questions. The "hard real time" spec refers to a certain maximal time frame for execution of a block of code. For instance, with Pd, there's an audio buffer of 64 samples transferred from sound card to RAM, which I think requires a system interrupt. Then, Pd has to be scheduled to run every 64 samples as well. At 44,100 Hz this is about .7 ms. So, the vexing questions about this...Is there a lower bound (shortest time) for running a dsp cycle using Pd? What would be a large enough "hard real time" spec to run Pd successfully? Just how low can your latency go? Any advice for choosing a kernel (my first step) is much appreciated ;) Chuck

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Gem 0.91 CVS bug ?
by Jerome Tuncer 08 Sep '06

08 Sep '06

Hello list... Don't if it's the right place to post for such a thing, sorry if not... I run Pd 0.40-test7 on Debian Linux and when loading most of Gem's pix_ objecs help I get an error in the term running pd which locks all of pd functions : menus are still available but do not execute any actions when clicked... The error is of the form : *** glibc detected *** free(): invalid pointer: 0xa5d2fb68 *** Except that the pointer varies from times to times of course... As stated I only get the crash with pix_* objects' help patches. Instantiating the objects themselves in a blank window doesn't seem to cause any problems... Any ideas on where it can come from?

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date: no method for 'bang' ?
by tim 08 Sep '06

08 Sep '06

Some old patches I have use [date] to generate filenames. It always worked, now i get 'no method for bang'. Is there a nameconflict? (windows) thanks, Tim

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tabread from datastructures?
by Marius Schebella 08 Sep '06

08 Sep '06

hello again, I am trying to access arrays in data-structures directly with tabread, resp. tabread4~. Is this not possible? when I try [tabread bazoo] in 05.array.pd example patch I get "error: bazoo: no such array". what is the best way to flush array data to a table? or will I run into performance problems with large arrays in datastructure anyway? m.

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[popup] disappearing with "new" GoP standard thingie
by David NG McCallum 08 Sep '06

08 Sep '06

Howdy, I've just started fiddling around with the versions of Pd past the point where the outline was added where you can see the GoP space of a patch. I recently resaved an old abstraction with Ben Bogart's [popup] in it and now the popup doesn't show up in the GoP. Any ideas? Running .40-0t04 on an Intel Mac. mactel. D -- __ _ _ _ __ _ http://sintheta.org

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data structures - color?
by João Miguel Pais 08 Sep '06

08 Sep '06

I just made a patch to see which colors are available in the data structures. it seems that they're not the same as in the normal pd scheme, and that they repeat themselves. is it normal that colors 0 == 100 == 200 == 300, 400 == 500 and 600 == 700? wouldn't it be useful for all color schemes to be synchronised? JoÃ£o -- Lugostr. 14 79100 Freiburg i. Br. Deutschland +49 (0)761 7074997 jmmmpais(a)googlemail.com http://www.puredata.org/Members/jmmmp

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Pd-list September 2006