Pd-list August 2006

pd-list@lists.iem.at

131 participants
259 discussions

launching PD from python (again)
by altern 07 Sep '06

07 Sep '06

hi Few months ago i was asking about how to launch pd from python, at that time i was getting some weird error i couldnt solve. I finally found what was wrong (forgot to pass the path to pd with \\ ) but now i have another issue to solve. Basically i am using this code to load PD and open a patch import os args = '-nogui', 'mypatch.pd' # this is a tupple with the arguments for pd, the last is the file to open os.spawnv(os.P_NOWAIT, 'C:\\Program Files\\pd\\bin\\pd.exe', args) It opens pd and the patch fine. But the -nogui doesnt work. I tried with other flags like -noaudio and this time they do work. I am wondering if this has anything to do with the pd console or something like that. Maybe it doesnt like being launched from python? As a test I explored this other method: os.startfile(run.bat) where the run.bat contains the comand pd -nogui mypatch.pd this works fine running pd as process only, but the console of the .bat stays open and i am trying to avoid any kind of window, i want PD to be invisible. I am testing it on windows XP at the moment but I want to use a crossplatform method, this is another reason to avoid the .bat any one has some ideas about how to get this running as i need? many thanks enrike

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Computer Music & Mathematics
by Steffen 07 Sep '06

07 Sep '06

Hey Pd-List, Fist of all: Im sorry if this is too off-topic, i know it's on the edge. I'm soon gonna write the final paper/thesis, before jumping to the "master" studies of mathematics. I'm not too familiar with the all educational systems in the english speaking world, but it's the part of my studies, that, when finished, gives me what's equal to a master degree in mathematics. To the point: I'm hoping to find a topic that combines "computer music" with mathematics, or maybe more correctly; a mathematical topic on a fitting level, that has (some) relations to computer music (in a broad sense). I'm kind of blank and lack computer music knowledge, hence i ask you lot: got any ideas? Hope you can help. And thanks a grand. Oh, my minor is philosophy if that matters. Best, Steffen

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Hello world external
by Javier García 05 Sep '06

05 Sep '06

Hi to all, Im trying to create my first "Hello world" external with this tutorial: http://iem.kug.ac.at/pd/externals-HOWTO/pd-externals-HOWTO.pdf How to save the file (what format) and how to load at puredata to see it works? Javi

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PD Senior Thesis/Project
by Igor Crnkovic 03 Sep '06

03 Sep '06

Hi ! I'm working on my senior project on Faculty of Philosophy in Rijeka, Croatia, majors in Pedagogy and Computer Science , and my thesis is PureData and its use in multimedia manipulation. Could someone please direct me to some resources with simmilar texts or projects, lectures, workshop material or anything that would be useful in writing a paper about PD, its use and features. Many thnx :) Igor Crnkovic ICQ# : 329-626-854

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gem: storing pix_snap2tex's in a pix_buffer?
by Thoralf Schulze 02 Sep '06

02 Sep '06

hi there, for the purpose of creating visual feedback, i just had a quick shot at storing the result of a pix_snap2tex in a pix_buffer. but somehow these two don't get along very well: i don't get the snapshot into the buffer, while pix_snap2texes help patch ("will take a snapshot of the current render buffer and immediately texture it to any _geometric_ object attached ...") makes me fear that i'm trying to do something impossible here ... tia, thoralf. ___________________________________________________________ Copy addresses and emails from any email account to Yahoo! Mail - quick, easy and free. http://uk.docs.yahoo.com/trueswitch2.html

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Re: [PD] P-ADmin
by beau c 02 Sep '06

02 Sep '06

Hi List, Is anyone out there using netpd? I am trying to figure out P-ADmin, when I noticed that the load buttons shown on the picture seem to be missing in the patch that I downloaded? Does anyone have a version that works? or know what the problem could be, and how to fix it. http://www.netpd.org/Pad -- B~ www.cypod.co.nr

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Re: [PD] pd & oss / midi
by Frank Barknecht 01 Sep '06

01 Sep '06

Hallo, (cc'ing the list back.) Thoralf Schulze hat gesagt: // Thoralf Schulze wrote: > --- Frank Barknecht <fbar(a)footils.org> wrote: > > thanks a million for your answer. > > > First: Running pd -oss is not deprecated or > > anything. I mostly use > > "-oss" myself. So if it works, just stick with it. > > So I guess I'll stick with the oss emulation, I just > got pd decently married to it. it still strikes me as > weird that the oss emulation of alsa is capable of > doing things that the underlying alsa doesn't seem to > support. It's the other way around: ALSA's OSS emulation is a simplified way to access the ALSA devices. To directly access the ALSA devices, the application, Pd, needs to do a bit more configuration, which seems to be broken somewhat in Pd. > while we're at it, another question regarding midi: > you wrote a while ago > (http://lists.puredata.info/pipermail/pd-list/2005-10/031793.html) > that it is possible to get data from an usb midi > controller into pd by using the /dev/midi* files. I > actually do have a bunch of them: > > vj@thoralf ~ $ ls /dev/midi* -al > crw-rw---- 1 root audio 14, 2 31. Aug 15:23 > /dev/midi > crw-rw---- 1 root audio 35, 0 14. Feb 2006 > /dev/midi0 > crw-rw---- 1 root audio 14, 2 14. Feb 2006 > /dev/midi00 > crw-rw---- 1 root audio 14, 18 14. Feb 2006 > /dev/midi01 > crw-rw---- 1 root audio 14, 34 14. Feb 2006 > /dev/midi02 > crw-rw---- 1 root audio 14, 50 14. Feb 2006 > /dev/midi03 > crw-rw---- 1 root audio 14, 50 21. Aug 19:52 > /dev/midi3 Hm, no /dev/midi1 or /dev/midi2? Try to create them with: cd /dev && MAKEDEV audio > I understand that I need to load the snd-usb-audio > module (pd -listdev without this module returns > > input devices: > 1. OSS MIDI device #1 > output devices: > 1. OSS MIDI device #1 > > , both are not working) to access the controller. with > this module loaded, i get > > input devices: > 1. OSS MIDI device #1 > 2. OSS MIDI device #2 > output devices: > 1. OSS MIDI device #1 > 2. OSS MIDI device #2 > > , but none if these devices actually works. I tried > various iterations of -mididev x , to no avail. am i > missing another module? and how do i get alsa to load > snd-usb-audio when it starts up? I don't remember what distribution you're on, but on Debian based systems you can just add your soundcard modules to /etc/modules. They will get loaded in the order they appear there. So add your normal soundcard module there and then snd-usb-audio at the end there to make the USB midi device show up as the last device. You may also want to load "snd-seq-midi" there, and make sure, "snd-rawmidi" is loaded as well, but I guess, it is already. Regarding the midi devices: If you start Pd with "-mididev 2" it will try to open /dev/midi1, if you start with "-mididev 1,2" it will look for /dev/midi0 and /dev/midi1. It's always the -mididev number minus 1. Another example: -mididev 33 will search /dev/midi32 Do you have more than one USB sound/midi card? Then I could also tell you some more tricks how to configure these to a specific order involving the "pid=" and "vid=" module options for snd-usb-audio. Just make sure you don't load the old OSS modules (add audio usb-midi to /etc/hotplug/blacklist Regarding the midi problem: Here I would say, using -alsamidi should be the preferred way. Pd's alsamidi support is quite good, but it's missing one crucial feature: autoconnect to devices on startup. Hopefully it will get this one fine day, then the hassle with OSS midi will be over. Ciao -- Frank Barknecht _ ______footils.org_ __goto10.org__

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Soft Rock EP
by Paris Treantafeles 01 Sep '06

01 Sep '06

Hi Claude, I finally have downloaded and watched your Soft Rock EP and wow... great stuff! I may be biased because it's quite similar to some of my own work - even without the GridFlow abstraction that you shared :-) If you don't mind can you tell us how you captured the visuals? They look very good - were you writing to disk (say from Gridflow to Gem?) or sending video out to another machine to capture. Thanks for sharing! p

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messing with help-patches
by Roman Haefeli 01 Sep '06

01 Sep '06

hi all bravely i tried to clean the mess i have with all the help-patches lying in different places and came to the conclusion, that there is no obvious way to do it right now. although i use pd for at least two years now, several things are still unclear to me (and maybe to others, too): - what is the 'offical' (non-deprecated) naming-scheme for help-patches: help-<name>.pd, <name>-help.pd or just <name>.pd (the last seems not to work, but i found some helppatches named after this scheme) since pd's own helppatches are named after <name>-help.pd, i assume this the 'official' one. - where are they supposed to be? i found helppatches in the following locations (i didn't place them by myself, they all have been put there by their installers) * pd/extra/ * pd/extra/<lib>/ * pd/doc/5.reference/ * pd/doc/5.reference/<lib>/ * pd/doc/<lib>/ * pd/doc/<lib>/<blablablabl>/<blablabl>/ since the helppatches cannot be reached from the helpbrowser, when they are located in pd/extra, i'd say this is not the way to go. it's handy to have an overview of all objects of a certain lib. also would it be nice to have the helppatches of the libs separated from pd's own helppatches. from the users point of view the following points would make life easy: -all helppatches are named after <name>-help.pd, which makes browsing easier - pd's own helppatches are located in pd/doc/5.reference (as it is now) - helppatches of the libs are located in pd/doc/5.refernece/<lib> the only problem i see here, is that one has to add an extra -helppath for each lib. it would be nice, if that could be avoided by searching pd/doc/5.reference recursively. i didn't find any documentation about this topic and i intentionally did not search the archives, since i'd like to have this discussion come to a final conclusion. the above can be considered just as a starting point. roman ___________________________________________________________ Telefonate ohne weitere Kosten vom PC zum PC: http://messenger.yahoo.de

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pd 0.40-0 test 05 get empty Pd window
by Enrique Erne 01 Sep '06

01 Sep '06

hi miller when i start Pd version 0.40-0 test 05 compiled for Macintosh OSX 10.3 (ppc only) 2 empty windows open. one is titled "Console" and the other "Pd". i can't open any patches nor is it the known menu. instead "Pd File Find Media Window Help" it's just "Pd File Edit" pd 0.40-0 test 04 works fine so far . i'm on ppc osx 10.3.9 hope i'm not the only one with this problem. regards enrique

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Pd-list August 2006