Pd-list March 2006

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148 participants
291 discussions

Re: [Pd] Feature request: simultaneous connections
by Chuckk Hubbard 15 Mar '06

15 Mar '06

>From: IOhannes m zmoelnig <zmoelnig(a)iem.at >Subject: Re: [Pd] Feature request: simultaneous connections >To: Jo?o Miguel Pais <jmmmpais(a)googlemail.com> >Cc: PD-List <pd-list(a)iem.at> >Message-ID: <4417CFFE.20702(a)iem.at > >Content-Type: text/plain; charset=ISO-8859-15 > >João Miguel Pais wrote: >>> ... and then people will complain that their patches do strange things >>> because they created fanning-connections with undefined execution >>> order instead of properly using the trigger-object. >>> >>> I don't think it's a good idea to encourage outlet-fanning with a >>> keyboard shortcut. >> >> >> you don't need trigger for all occasions. sometimes it doesn't matter >> in which order the messages are sent, only that they arrive - like in >> come cases where building a spider web is necessary because of lots of > >this is true, but it is a special case where the programmer has to know >that the order does not matter. >it is a bad design for a programming language, if it tends to create >programs that behave "somehow". I guess I agree, for connecting one outlet to multiple inlets, but I still see no problem with being able to connect multiple outlets to one inlet. -Chuckk > >> But it's also not that bad to let people make mistakes. Then they'll >> learn quite faster. > >allowing people to make mistakes is something different than helping >(enforcing) people to make mistakes. >the former could be considered as some (weird) form of education, while >the latter is just offending. > > >mfg.asdr. >IOhannes >

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Mac OS X 128x128 pd Icons
by Luke Iannini (pd) 15 Mar '06

15 Mar '06

Hallo All, I made some hi-res icons for OS X users (or all; png files are also included). I sent them along to Miller but I doubt he has time to worry about icons : ). For those who can't stand allowing those low-res default icons in their immaculate OS: Luke proyekto.net

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issue with [vd~] in subpatches with overlap factor
by Roman Haefeli 15 Mar '06

15 Mar '06

hi attached is a demo-patch, that shows the fact, that the delaytime of [vd~] or [delread~] has to be divided by the overlap factor, if the [vd~] is in a subpatch with an overlap factor > 1. when building the fft-pitchshifter, i spent a lot of time finding out about that. thinking about that, it is getting more and more clearer, but i'm still unsure if i understand right, how overlapping in subpatches works. just a few assumptions: - setting an overlap factor n is like upsampling, so that the samplerate inside the subpatch is the main samplerate multiplied with n ? (that would explain the issue with [vd~]) - each vector takes the n-th part of computation time, compared to normal computation time of a vector? - the n vectors in a cycle are computed sequentially? - the [outlet~]-object outputs the average vector of all n vectors in one cycle, so that the output has the main samplerate again? is there a good docu about handling of overlapping in pd? cheers roman ___________________________________________________________ Telefonate ohne weitere Kosten vom PC zum PC: http://messenger.yahoo.de

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memory functions, are they essential?
by Charles Henry 15 Mar '06

15 Mar '06

Hi, list, I was wondering about the memory functions, getbytes and freebytes. Namely, are they essential? Why not use calloc and free? (I've used calloc in an external before with no apparent negative consequences) I ask, because I've got a subroutine in Fortran that I've been trying to link into an external. The fortran subroutine of course has its own allocation method. Not sure what the error is yet. It seems to be different every time. One instance: Program received signal SIGSEGV, Segmentation fault. [Switching to Thread -1208219968 (LWP 10256)] 0x001ff06c in _int_malloc () from /lib/libc.so.6 (gdb) bt #0 0x001ff06c in _int_malloc () from /lib/libc.so.6 #1 0x002001d9 in calloc () from /lib/libc.so.6 #2 0x00c801ad in controlfreak_tilde_perform () from /usr/local/lib/pd/extra/controlfreak~/controlfreak~.pd_linux #3 0x08f278fc in ?? () #4 0xbf9d2000 in ?? () #5 0xbf9d1f28 in ?? () #6 0xfffff810 in ?? () #7 0x00000000 in ?? () shows the problem has "something" to do with calloc. I don't know how much more general I can be. :) Chuck

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pix_record help pd file
by Koray Tahiroglu 15 Mar '06

15 Mar '06

Hello everybody, Can anybody tell me where can I find the help pd file for [pix_record]? I couldn't find under http://cvs.sourceforge.net/viewcvs.py/pd-gem/ Gem/help/ thanks, Koray. ----------------- M.Koray Tahiroglu Media Lab, University of Art and Design Helsinki, TaiK Hameentie 135C 00560 Helsinki Finland http://mlab.uiah.fi/~korayt/ http://purenoise.uiah.fi:8000/ tel: +358 40 754 8449 fax: +358 9 75630 555

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Pure Data workshop + "resonanCITY" live cinema performance: Portland OR USA March 28,29,30
by derek holzer 15 Mar '06

15 Mar '06

Pure Data workshop + "resonanCITY" live cinema performance Apotheke Portland Oregon USA March 28,29,30 Apotheke is hosting a multi-faceted audio/video event at the end of this month. 1) "resonanCITY" live cinema performance Tuesday March 28, 9 pm + 2) Pure Data Workshop for Sound and Vision Wednesday March 29 - Thursday March 30, 1-5 pm Details>> 1) "resonanCITY" live cinema performance Tuesday March 28, 9 pm resonanCITY is a live cinema performance by Sara Kolster (NL, 1978) and Derek Holzer (USA, 1972). It has been performed live in the USA, Canada, Holland, Brazil, Poland, Serbia, the Baltic States and at the Transmediale 05 festival in Berlin. Their Portland date is part of a limited North American engagement. Both Sara and Derek find inspiration in the history of experimental cinema and electroacoustic music, as well as in contemporary video and microsound practices, and a variety of live sources such as photographic film and found objects are used to generate the visions and sounds. Kolster and Holzer also reject the use of common, commercial production methods and the default, commercial artworks that these methods often produce, preferring instead to program their own software, build their own hardware interfaces and actively participate in the free and open source communities which surround these activities.They also explore contemporary ideas about "Live Cinema" and demonstrate the principles and tools explained during their Pure Data workshops. This evening will also feature improvisational audio and video from local artists Zachary Reno, Seth Nehil, and Rob Tyler, among others. Cost is $5 at the door, starts around 9pm. 2) Pure Data Workshop for Sound and Vision Wednesday March 29 - Thursday March 30, 1-5 pm A workshop on Pure Data, GEM and PDP for sound and video artists. Pure Data is a free and open source software, a modular and object-oriented programming environment geared towards manipulation and synthesis of both audio and video. It is similar to the commercial package "Max/MSP" , and can be used on Linux, Mac OSX and Windows. Participants will learn the basic "grammar" and "vocabulary" of Pure Data, GEM and PDP, upon which objects for sound, 3D and video will be added. Emphasis will be placed on direct connections between sound and image through three different methods: influence of sound on image, influence of image on sound and the use of common "control data" for both image and sound. The workshop spans two days, and is geared as a ground-up introduction and interface between the programming environment and artist. Attendance of the first day is a prerequisite for the second day, since information and concepts introduced in the beginning of the workshop will be used later on. Students will also be required to bring their own computer, however PD software will be provided, for either Linux, Mac OS 10.3/4 or Windows. (With the exception of PDP, which is not available for Windows.) The workshop starts at 1pm each day, and should last about four hours. Registration costs $75, or $50 with a Student ID. You can sign up at Apotheke, payment will be required to hold a spot. Sign up early, as space is limited. Full schedule info is tagged to the end of this release, and can also be found at the venue's website, http://www.apotheke-nw.com. - More information on both of these events, and about some of the artists involved, can be found on these websites: http://www.umatic.nl http://www.sarako.net http://www.onomato.org http://sethnehil.artdocuments.org/ http://www.vcr100.com Thanks! Hope to see you there. Apotheke 1314 NW Glisan St., #2a . 503.241.7866 www.apotheke-nw.com ****** Workshop Schedule >> DAY ONE: BASICS & AUDIO Installation Clinic. The first part of the workshop will be devoted to installing Pure Data, GEM, PDP and several other externals on the participants' computers. For PD and GEM, Mac OSX, Windows and most Linux distributions can be accommodated. Please note that PDP is NOT available for Windows, and only runs on Linux or OSX 10.3/4! Pure Data as a Language. Like learning any new language, PD starts with learning vocabulary and grammar. In this case, we will learn the names of many common objects and the syntax of how to use them, in a clear "Geek-to-English" translation which makes the complex data-flow operations of PD understandable to non-programmers. Pure Data for Sound Synthesis. PD has powerful signal-processing abilities, and we will explore these by building a simple, monophonic synthesizer controllable from either a MIDI device or from the keyboard of your computer. Different types of sound synthesis, such as Additive, Subtractive, Amplitude Modulation, Frequency Modulation and Wavetable Synthesis will be covered, along with the use of filters and delays for a variety of effects. Pure Data for Sample Manipulation. Because PD uses a range of very basic building-blocks to store and playback sampled sound, a wide range of manipulations are possible. Here, we will explore pitchshifting, time stretching, looping and basic granular synthesis. Other uses of data stored in tables for control purposes will also be touched on. DAY TWO: VIDEO & CROSS-SYNTHESIS. Pure Data for 3D: GEM. GEM is an external library used in PD for moving 3D graphics under the OpenGL protocol. It is also an ideal environment for VJ mixing. We will explore how to create and manipulate simple 3D objects, how to texture them with images, how to playback and mix video clips in GEM and how to use a live camera input. Pure Data for Video: PDP. PDP (Pure Data Packet) is used primarily for video playback and effects filters. We will investigate PDP for direct video synthesis, for the playback and mixing of (audio)visual clips and for the processing of a live camera input. PDP includes several tools for the analysis of video for movement, change and color, which in turn can be used to control sound playback and other events in PD. Pure Data for Audio Analysis. We continue our investigation of the audio side of Pure Data by looking at different methods of analyzing sound signals for pitch and amplitude information. The data we extract from the audio can be used to either (re)synthesize new sounds or to control 3D or video graphics manipulations. Pure Data for Cross-Synthesis. Combining what we have learned so far about sound and image in PD, we'll explore the interrelation of sound and image in three ways: the analysis of sound to control video (PD-->GEM/PDP), the analysis of video to control sound (PDP-->PD) and the use of data to simultaneously control sound and image (PD, GEM, PDP). -- derek holzer ::: http://www.umatic.nl ---Oblique Strategy # 73: "From nothing to more than nothing"

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pd + javascript? using net data for controlling one patch
by ruben patiño 14 Mar '06

14 Mar '06

hi list. iÅ½d like to how i can use data from the internet to control one pd patch.is any javascript object or somethin related? if anyone could give some links or information iÅ½d be very gratefull thanks. r. --------------------------------- LLama Gratis a cualquier PC del Mundo. Llamadas a fijos y mÃ³viles desde 1 cÃ©ntimo por minuto. http://es.voice.yahoo.com

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Re: [Pd] Feature request: simultaneous connections
by Chuckk Hubbard 14 Mar '06

14 Mar '06

Then perhaps it could just be for multiple outlets, and not multiple inlets. I'm thinking of instances where only one of those messages is going to be sent on any pass. I do it all the time, often with a [route] object determining which message is to be sent. A trigger object wouldn't make much difference with several messages going to one inlet: the place for the trigger would be before those several messages. They could still all connect directly from their outlets. -Chuckk Subject: Re: [Pd] Feature request: simultaneous connections To: pd-list(a)iem.at Message-ID: <20060314170811.GI6454(a)fliwatut.scifi> Content-Type: text/plain; charset=iso-8859-15 Hallo, João Miguel Pais hat gesagt: // João Miguel Pais wrote: > >or one outlet to several receivers, or what not. > > actually max has a nice sollution for that: pressing shift while making a > connection automatically brings up another cable from the same output. It > would be good to have something like that on pd as well. ... and then people will complain that their patches do strange things because they created fanning-connections with undefined execution order instead of properly using the trigger-object. I don't think it's a good idea to encourage outlet-fanning with a keyboard shortcut. Ciao -- Frank Barknecht _ ______footils.org_ __goto10.org__

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pd and jack on osX
by alexandre matheson 14 Mar '06

14 Mar '06

Hi, I posted this to the list before but did not get a response so here goes again. When I set up pd to use jack in the audio preferences I don't get any sound. The in/out meters on the console don't budge from 0 while gui vu's indicate signal. I tried using coreaudio and portaudio in the jack preferences to no avail. is there something specific that needs to be done in pd? I'm running miller's pd 0.39-2 with the latest jack osX on tiger (10.4.5). Jack works fine on all other supported apps. regards, Alexandre Matheson amatheso(a)alcor.concordia.ca iChat: ealx(a)mac.com

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pool problems: subdirs & instabilities
by Rune Lain Knudsen 14 Mar '06

14 Mar '06

Hi all, I'm trying to use Pool to generate a list of presets for a sample player. The idea is to have a collection of 32 samples each with 8 presets and to be able to save/load this with the xml structure provided with Pool. However I'm running into some problems: - I've created the patch for setting up the directory structure(32 absolute dirs and 8 subdirs for each). The name(key) for each absolute dir works fine but the subdirs seem to 'inherit' the name of its parent dir no matter how I use the mksub/mkchsub command. Is it supposed to be like this, or am I just doing something wrong? - I've noticed instabilities on some occations: Sending clrrec to pool without any other command tends to do strange things to pd, also just closing a patch containing Pool often gives an error to the console, and sometimes it even causes PD to crash and hog 99% of my computers resources. Attached is the patch demonstrating these issues together with the resulting .xml file(where you can see how the subdirs get the same name as the absolute dir). I've tried using more than numbers for names as well(program0, program1 etc. for absolute and preset0, preset1 etc. for subdirs) and the same thing happens as with the numbers. My setup is winXP, pd39.2 and pool 0.2.2pre(the one in the beta folder at Thomas' homepage) Thanks, Rune _______________________________________________________________ Milliners are professionals of what trade? postmaster.co.uk http://www.postmaster.co.uk/cgi-bin/meme/quiz.pl?id=21

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Pd-list March 2006