Pd-list January 2008

pd-list@lists.iem.at

133 participants
232 discussions

"Structured" dataflow?
by Dudley Brooks 01 Feb '08

01 Feb '08

Can anyone direct me to articles on constructing clear, modular, non-spaghetti patches in pd or other visual dataflow languages? Especially if the articles derive their recommendations from theoretical analysis (as with the investigations that led to structured programming in imperative languages), rather than just rules-of-thumb -- although the latter are useful also. Or is some amount of spaghetti unavoidable in dataflow languages, perhaps because it is inherent in the situation being modeled, rather than being an artifact of the language? Thanks.

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paranoid pd
by naysayer 01 Feb '08

01 Feb '08

could someone tell me how i can turn off this paranoid setting in pd that asks me every time if i'm sure i want to close the patch window. it seems a little crazy that this happens regardless of whether i have saved the patch or not. i hope i'm not being intolerant. thanks.

11 19

PD console
by marius schebella 01 Feb '08

01 Feb '08

hey, the whole quitting discussion made me think about the functionality of the pd console window. (actually, on osx the window is not necessary at all.) for pd-extended there is the possibility to hide the console output. I would like to change it, so that it is possible to hide also the rest individually (the in/out section/peak meters dio error box could all be hidden, creating more space for console output). what do you think? and I also think hiding the console output by default is a bad idea. usually I want to see that pd started up without any errors. marius.

2 1

counter + list of objects
by John Cohen 31 Jan '08

31 Jan '08

Hi Im new in PD. Ive been using Max/MSP and now am trying to switch to its open source alternative.. Ive had no problem with pd so far but recently i tried creating the "counter" object and I've always had the same error "couldn't create counter. I'm pretty certain the object exists in pd since i saw it in a couple of tutorials.. am i missing a special library to get this object? also, i would very much want to see a list of objects available in pd. i haven't seen one so far, so its difficult to know what objects are installed and i can count with! thanks for your help jonesints

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honk -- update
by Johannes Kreidler 31 Jan '08

31 Jan '08

hi list, thank you for advices and bug reports. i fixed some things, added another abstractions und help-files. here are the honk abstractions: http://www.kreidler-net.de/honk.html hans-christoph, can it be included in pd-extended? greets, johannes honk abstractions collection of abstractions for pd (requires at least pd-extended 0.39) download: http://www.kreidler-net.de/honk.zip help-files are in the same folder, but also included inside the absctractions themselves. ----GLUE---- linvert - inverts order of atoms of a list listerize-fifo - like "serialize" but for symbols, turns a list of symbols into a list, in order: first in first out listerize-lifo - like "serialize" but for symbols, turns a list of symbols into a list, in order: last in first out mergerize-fifo - turns a stream of symbols into one symbol, in order: first in first out mergerize-lifo - turns a stream of symbols into one symbol, in order: last in first out nbangs - sequence incoming bangs prae - glues a praefix and an input together to one list schange - like "change" but for symbols, outputs its input only when it changes serialize-fifo - like "serialize" but for any number of floats. turns a list of floats into a list, in order: first in first out serialize-lifo - like "serialize" but for any number of floats. turns a list of floats into a list, in order: last in first out ----TIME---- malibu - counts in a certain speed zetro - random metronome ----MATH---- noreprand - (almost) exactly like "random", but without repetitions. outputs random numbers in given range. rondom - like "random" but with offset as argument ----TABLES---- ntables - creates a certain number of tables in subpatch ----GUI----- bak - like bang, but size can be given by argument dac - comfortable control of audio output display - displays a number or symbol in variable size hamp - comfortable horizontal potentiometer hr - like horizontal radio, but number of buttons can be given by argument gop - comfortable graph-on-parent control hs - horizontal slider with range as arguments sf - soundfile-player for different formats (wav, mp3, ogg) tok - like toggle, but size can be given by argument vamp - comfortable vertical potentiometer vr - like vertical radio, but number of buttons can be given by argument vs - vertical slider with range as arguments vum - quick-to-build VU-Meter ----MISC---- klist - text-based sequencer with absolute time destinations midi2symbol - MIDI tone numbers to german tone name conversion ----AUDIO GLUE---- compress~ - every amplitude that lies under a certain threshold will be amplified to a reference amplitude limit~ - every amplitude that lies over a certain threshold will be dampened to a reference amplitude pitchshift~ - granular transposition ----AUDIO OSCILLATORS---- sinesum~ - oscillator with various partials waveform~ - waveform oscillator (sine/saw/triangle/square/pulse/random) -- Der GMX SmartSurfer hilft bis zu 70% Ihrer Onlinekosten zu sparen! Ideal fÃ¼r Modem und ISDN: http://www.gmx.net/de/go/smartsurfer

4 3

reverb for each grain
by punchik punchik 31 Jan '08

31 Jan '08

hello, im working on a 64 voice granular synthesis tool. i want to apply a reverb effect <with diferent parameters> to each grain independently. which is the best way of doing this? which reverb do you recomend me to use? i was trying freeverb but it consumes too much cpu. and 64 freeverbs makes my computer go slow. and which is the best way to achieve this in terms of cpu consumption? is it better to have 64 abstraccions, or 64 subpatches? thanks p. ____________________________________________________________________________________ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ

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manipulation of text files - grep - shell - coll
by robcanning 31 Jan '08

31 Jan '08

hello, could anyone recommend a library for, or method of, manipulating lists of strings in textfile format? i need to be able to grep, sort, file etc. up until now i have been using [coll] but its not powerful enough for my needs. recently i have been experimenting with [shell] but it doesn't respond fast enough - if i dump a load of information triggered by an [until] then shell gives me the "old process still running message" i could regulate the flow if info into the [shell] but before i start in that direction i was wondering is there a library or method out there that would do it more efficiently. thanks, rob c

4 19

fun with telephone sounds
by Hans-Christoph Steiner 31 Jan '08

31 Jan '08

For some reason, I just reproduced some standard telephone sounds in Pd... maybe these exist somewhere already, but I thought I'd post this for fun. .hc ------------------------------------------------------------------------ ---- As we enjoy great advantages from inventions of others, we should be glad of an opportunity to serve others by any invention of ours; and this we should do freely and generously. - Benjamin Franklin

3 2

one more boring computation-time cuestion of mine...
by matteo sisti sette 30 Jan '08

30 Jan '08

Hi, Suppose I create a [sample] abstraction that basically contains a [table] to store a sound sample, and a [soundfiler] to read it from a file. One of the reasons for creating such a "trivial" abstraction is that it has a GOP GUI with -a symbolbox where you can write and see the filename -a test button that plays the sample. Now suppose the test part is implemented like this (simplified): [r $1-test] | [tabplay~ $1] | [throw~ sampletestout] ($1 is the name of the sample, i.e. the name of the table, and the GUI is supposed to have a bng sending to $1-test) Obviously, to avoid unnecessary cpu-usage, that would become enormous if I have many sample instances, I will include the necessary patching in the abstraction in order to [switch~] it on only when playing, and off when not. Usually you'll be testing at most one sample at the same time. Now the question is: in case there are N [sample]s in my patch, Is it possible that the time needed to load ONE sample (sending a [read...( message to the [soundfiler]) increases with N??? If so, why? The fact is that I have been using such an abstraction very much, and have a great number of [sample]s in my patch, and started to notice that loading all the samples was terribly slow. Then, without thinking it had any relation to this, I realised I could easily remove all the "~" part from the sample abstraction, by implementing a unique [sampletester] and having [sample]s sending him messages to test one sample. I did this, and removed the [tabplay~] thing from the [sample] abstraction, and now the loading of samples seems to be enormously faster... -- Matteo Sisti Sette matteosistisette(a)gmail.com http://www.matteosistisette.com

4 4

gpl vs creative commons
by Damian Stewart 30 Jan '08

30 Jan '08

hey, i've written some pd patches for an artist-in-residence working the Netherlands Media Art Institute Amsterdam (NIMK). NIMK are running something of an open-source-everything policy at the moment, so they want the patches released somehow. there's two parts to the project, a text-parser (i recommend not doing text-parsing in Pd if you can help it, it hurts) and a sound-creation module. the text-parsing part makes perfect sense to be released under the GPL to me, but the sound part is a little more unclear - perhaps Creative Commons makes more sense for a sound-making patch (despite CC's inherent problems..) (i don't know - how do you license an interactive installation? is it software? is it music/media? what about a portable computing device that's processing incoming data in realtime to make sound?) then there's the question of whether any and all Pd patches are 'derived works' (derived from Pd) or '[a combination of] two modules into one program' and therefore need to be GPL. can anyone shed some light on this? cheers d -- damian stewart | +351 967 797 263 | damian(a)frey.co.nz frey | live art with machines | http://www.frey.co.nz

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Pd-list January 2008