Pd-list November 2005

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143 participants
298 discussions

OSX - Send PD messages from Terminal?
by Ryan Supak 28 Nov '05

28 Nov '05

Hi PeeDee list, I've got a bit of a broad-based question here. I use a terrific piece of software called Quicksilver that does a lot of things, but basically it allows you to do tasks with files quickly and in an extremely elegant manner. One task it allows you to do is to invoke shell scripts. I use PD as a pretty intricate MIDI switcher for Ableton Live, and basically I never look at PD when I play -- I rarely even look at the Ableton screen. As the intricacy of the MIDI patching has increased, one task that has become increasingly difficult to manage is PD patch switching. The solution I have decided on to handle switching, from now on, is to type a string of a few letters and numbers into Quicksilver and have it change the patch accordingly. *** So -- Basically, I would like to invoke a shell script, and have it instantly send a message to PD. The best solution I've come up with is to use [netreceive] to catch some packets, and use a command-line "packet injector" program called Nemesis to send the packets into PD. Can anybody think of a simpler, or lighter weight, method of sending PD messages from a command line or shell script? Here's a diagram of the "missing links": OSX Terminal -> SomeCommandLineMethodOfSendingMessagesToPd -> [SomeMessageReceiverPdObject] Thanks for any thoughts! rs

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feature extraction
by Jacob Last 28 Nov '05

28 Nov '05

Hi all-- I'm currently working on a project for controlling my granular synth patch using a control stream derived from various feature extractions from an input signal (soundfile or live). Currently what I'm working with is the spectral centroid, which I've implemented as a PD patch. I'm wonding if people have other ideas for perceptual features that can be reliably extracted from an audio stream using the FFT or otherwise. The input is not necessarily pitched (might eventually want to analyze its own granular output as well, in addition to noisy and unpitched sounds) so I'm not that interested in pitch tracking, etc. rather more high level sonic features. For example, how might I detect a period of sharp attacks on a wind instrument? Maybe by using some sort of peak threshold with the spectral centroid? "Smoothness" of a sound? Continuum of pitched to unpitched? Etc. Also if there are any PD implementations (abstractions or externals) of this sort of stuff please inform me; I haven't found anything as of yet. I'd very much appreciate any input! Best, Jacob

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linux distribution choice
by julienbreval＠free.fr 28 Nov '05

28 Nov '05

Hello list I have a laptop now (Pentium M 1.72 GHz) and there's a void partition waiting for a Linux install. I want to use it for real time audio processing (Pure Data) and a few other things that are not very important here (Ardour, Scilab, Firefox, etc). After a quick look at the usual Internet places, I'm quite confused about distribution choice. As I have some good experience of Red Hat 9 (the Planet CCRMA version) on a desktop, I investigated Fedora but according to what I read it looks quite big, complicated and slow because it would like to resemble Windows or OS X. I don't need so a lot of things and I have always believed that simple things work better. Maybe I'm wrong ... Conversely, I don't want to loose time on technical things because I need to focus on music, so building my own distribution (or starting from Gentoo) is not possible (though really interesting) because it would take about 3 months or so. And maybe I don't need so specific complex tweaking for only doing realtime audio. Some Linux distributions like Ubuntu seem to be a compromise between big linux and scratch linux but last time I tried Ubuntu I couldn't get correct low latency audio on it, hence I re-installed RH9. Did these medium-size distributions improve recently ? There are also some "multimedia" linux like Agnula that I don't know anything about. So which distribution would you recommand ? I need something efficient, performant for audio (I have a hdsp sound card that will help a lot), generic, that doesn't need 1 year of tweaking before working. The RH9 Planet CCRMA version was good and it included APT (mandatory). But things have changed and we are nearly in 2006 ... what if I would like to do a new track tomorrow ? :) Thanks for your information Regards Julien Breval

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Gem question
by alexandre matheson 28 Nov '05

28 Nov '05

Greetings, When I send a [create( message to [gemwin] this prints out to the console: GemWindow Activate err = 0 It creates the window none the less but I just wanted to know if it was normal. This might be important: PD 0.38-3 osx 10.3.8 GEM: Graphics Environment for Multimedia GEM: ver: 0.90 release GEM: compiled: May 25 2004 regards, alex

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about [prepend] on osx
by nico 28 Nov '05

28 Nov '05

hi in the osx package (0.38-RC4) from hans, there is [prepend] in extra folder [prepend in extra/cyclone folder if i load cyclone library at startup, the cyclone prepend is not available is it possible to define only one prepend object (the cyclone's one --- i prefer), or not? best regards to all nicolas

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OSC in pd canonical (was Re: Re: pure == slow, impure == fast ? was purepd)
by Chris McCormick 28 Nov '05

28 Nov '05

> Date: Sun, 20 Nov 2005 11:22:29 +0100 > From: Frank Barknecht <fbar(a)footils.org> > Subject: Re: [PD] Re: pure == slow, impure == fast ? was purepd > To: pd-list(a)iem.at > > Hallo, > Tim Blechmann hat gesagt: // Tim Blechmann wrote: > > > > Of course we all know, that patched stuff id Pd is slower than coding > > > stuff in C. Still we patch in Pd, why do we do it? Because performance > > > is not all that matters, ease of programming, the ability to change an > > > implementation on the fly etc. - all that is important as well and it > > > is the major reason, scripting languages are taking over large parts > > > of software development: The performance of the programmer is becoming > > > the much more important bottleneck than the performance of the CPU. > > Most importantly though: Not everyone has every external installed. > This is a real problem which I learned the hard way with RRADical, > where in the beginning I said to myself: Go crazy and use every > external there is to do the work. This was a bad mistake, because now > all the time people come asking (me) how to compile the needed > externals on Windows and I cannot help them. That's why I'm working on > replacing most of the stuff used in RRADical with builtin objects. > Unfortunatly there is nothing that can replace [pool] and [OSC] in Pd > yet, and I don't want to ditch OSC support in RRADical and I cannot > ditch [pool], which is a constant pool of trouble for non-technically > inclined users. :( Which begs the question; why isn't OSC functionality included in Pd canonical? After all, OSC is the new defacto standard in control messages isn't it? And Midi functionality is included already in Pd. Miller, perhaps you could tell us if there is a plan to include OSC in Pd in the future? Frank I think yr on the right track in terms of making the user experience easier. Like it or not, users want to download one binary and install it, or apt-get install it. Do you see it being possible to replace pool functionality with the new list and data structures stuff? Best, Chris. ------------------- chris(a)mccormick.cx http://mccormick.cx

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Re: Fwd: Re: [PD] pd setup on G5 + Digi 002
by chris clepper 28 Nov '05

28 Nov '05

On 11/27/05, jef chippewa <jef(a)newmusicnotation.com> wrote: > > (this will be quicker if i just subscribe to the list...) > > we opened up the utility "Console" the following message comes up: > > Error number -9990 occured opening portaudio stream > Error message: Buffer too small I have never seen my 002 work in PD no matter what version or settings. I see the same -9990 error you do. I don't know if it is a PortAudio or Pd problem, but no one has ever spent any decent amount of time on Pd's audio for OSX, so I wouldn't hold out for a fix soon. > we have another interface available (M-audio firewire 410, 2 in / 8 > out - we need 4 ins for the piece), had thought of using the 002 in > and M-audio out, but the only setting in the audio settings that > gives us sound is when both in and out are set to Mac built-in audio, > so this doesn't seem like an option either. what about sending into > 002 (4 mic inputs) then via optical from the 002 to the M-audio? > don't know how to get this to work, but would it be an option? Use the 410 if it works. Put a mixer or pair of mic pres in front of the two 1/4" inputs if you need more than the two built in pres. If your 002 is the standalone (not rack) version then it should work as a mixer without being plugged into a computer. > in digidesign Coreaudio manager, when quitting and restarting we have > discovered that the buffer settings we chose are not always still > there! they are usually a notch lower than we set them at. That makes sense because Digi's CoreAudio drivers a certainly a notch or two below anything else in existence. Having looked at the assembly for the driver I can say that you would have to hold some sort of contest to write worse code. The original poster mentioned that everything worked fine using Max/MSP. It might be faster and less painful to move the patches to Max compared to trying to get Pd working with your gear.

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Re: [PD-dev] GOP in subpatch
by federico 28 Nov '05

28 Nov '05

Frank Barknecht ha scritto: >Hallo, >federico hat gesagt: // federico wrote: > > > >>i tried enabling it. subpatch expands to the specified size, but doesn't >>show graphical objects in it. >>:-| >> >> > >Could you send an example patch? And which version of Pd? Early >0.39-test releases had a bug regarding GOP, please use the latest and >greatest. > > > 0.39-1 from Miller btw, (ooops) after changing the GOP properties (margin, width, height...) it worked here too. just an initialization bug >Ciao > >

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OSC in canonical
by Chris McCormick 27 Nov '05

27 Nov '05

Hi Miller, I was wondering if there are plans to include OSC functionality in core Pd? Best, Chris. ------------------- chris(a)mccormick.cx http://mccormick.cx

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GOP in subpatch
by federico 27 Nov '05

27 Nov '05

i tried enabling it. subpatch expands to the specified size, but doesn't show graphical objects in it. :-| is GOP feature supposed to not work with subpatches? -- ciao Federico

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Pd-list November 2005