Pd-list February 2007

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148 participants
295 discussions

playsf~ & stereo
by alexandre r. decoupigny 11 Feb '07

11 Feb '07

hello there list, i am having trouble with playing stereo files in pd. what im patching is a player that plays back 1.5 min. stereo files randomly as part of a bigger patch.. here is what i made, but noticed now that its all mono.. so buuh.. on me, because i dont know any other player that i can use that can read in a soundfile as a loadbang and plays back in stereo ????? please help me : ) best wishes alexandre -- alexandre r. decoupigny www.listeningart.blogspot.com www.myspace.com/alexandredecoupigny

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object sizes
by marius schebella 11 Feb '07

11 Feb '07

hi, I am a little bit confused... is it possible that all objects in Gem are drawn twice as big as they should??? [gemhead] | [translateXYZ 2 0 0] | [square 2] size 2 of the square should be the width (=height). but translate 2 only shifts the square half of its width. or am I misunderstanding something? please help! marius.

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microphone sampling
by Jiri Heitlager 11 Feb '07

11 Feb '07

Hello, i am quit knew to puredata and in the process of descovering its possiblities. Tonight I wanted to experiment with microphone input, instead I have spend all night googling for a how-to on using the mic in pd. I had no luck. So I tried to test the mic myself and did, [adc~] | [dac~] wich offcourse gave the expected behaviour.. Can somebody help me to understand how to get a mic input, and record it some how. Thank you Jiri

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Re: [PD] Problem with Ground Control Pro and [midi-in] response to Derek
by Benjamin Brown 10 Feb '07

10 Feb '07

Derek, Thanks for the response, I have the audio midi setup window open and the USB Uno MIDI interface is viewable. I then started PD, selected the Uno from the midi preferences in PD and ran the test patch(i have also tried this by starting pd then starting the utility). I receive no messages in the midi message boxes of the test patch. When I test the setup from Audio/midi setup(not PD) I still get the nice test tones when I pressed the foot pedals buttons. The foot peda is directly connected to the Uno which is plugged into the a USB port of my Powerbook g4. In the Audiomidi devices setup window am I supposed to add a device and run a virtual patch inside that window to the interface? The thing is that when I plug my midi keyboard into the Uno I get messages fine straight to PD, if I switch the keyboard out and connect the pedal nothing happens....except in the osx setup utility. I have also tried starting the IAC driver but that doesnt show up in PD.... Benji ---------- Forwarded message ---------- From: Derek Holzer <derek(a)umatic.nl> To: Date: Sat, 10 Feb 2007 03:48:35 +0100 Subject: Re: [PD] Problem with Ground Control Pro and [midi-in] Did you leave the "Audio MIDI Setup" application open when running PD? This is usually necessary in my experience. Did your specific interface appear on the list of available MIDI devices in PD? d. Benjamin Brown wrote: > I just purchased a Ground Control Pro in hopes that I could use the midi > foot controller to control my PD patches. However, I don't get any > midiIn output. Using the Test Audio Midi patch in the PD > extended-0.39.2 build I receive no output to the message boxes. I have > made sure the pedal is sending messages by checking the AUDIO/MIDI > settings in OSX, I get nice test tones and flashes when pressing the > foot buttons, in the System Utility(Audio/midi). -- derek holzer ::: http://www.umatic.nl ---Oblique Strategy # 58: "Do we need holes?"

1 0

audio send recieve feedback quirk
by padawan12 10 Feb '07

10 Feb '07

I found this behaviour slightly surprising, but on reflection it makes sense. Pd doesn't seem to check deeply into subpatches when looking for DSP feedback loops. I started making a simple waveguide synth and decided, for a change, to work on the feedback mechanism inside another subpatch. I kept getting DSP loop error even though the signal path contains a [s~] and unique matching [r~]. Making the feedback loop require a [send~] and [receive~] in the outermost block seems to defeat the use of smaller blocksizes in subpatches. Anyone care to comment on this (attached example). Or am I understanding this incorrectly? Cheers. Andy

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Re: namecanvas
by Matteo Sisti Sette 10 Feb '07

10 Feb '07

> While I agree that Pd should not crash here, I don't agree with your > reasoning: Pd is a programming language. It is possible to write buggy > programs in Pd just as in [...] Javascript. That's not the fault of Pd > or [...] Javascript (I've stripped out the part about C because that's a compiled language while PD and javascript are interpreted languages and I think they just can't be treated the same way) I agree with what you say. However, I can't think of any "bugginess" of any pd or javascript program that may justify the interpreter to crash. If a web page with buggy javascript makes my browser to crash and close (with all the other pages I had opened in the other tabs), that IS a bug of the browser or javascript interpreter. Of course, I cannot expect a buggy patch [javascript program] to "work". *Its execution* may even become unstable (and that of all simultaneously running patches, since the PD "virtual machine" is not and is not supposed nor expected to be a "multitasking" virtual machine where patches are independent programs) but I still MUST be able to save the patch, and close one or all the patch windows. If I can't do that, then PD has a bug. I am not saying that the developers of pd should be scorned for that, nor that it easy to fix, nor even that it is worth wasting time fixing it, but it is a bug. The interpreter or virtual machine of an interpreted language is a software, and the interpreted code is its input. The "virtual" machine can became "virtually" unstable if it is running buggy code. But the "real" software that simulates the virtual machine must keep stable; if it triggers (legitimate) operating system's defense mechanisms, the interpreter is buggy software. The case of C is different, because it is a compiled language that produces real machine code which will run (and crash) directly on the real machine. It is the programmer's responsibility to avoid writing code that will crash - though it is the operating system's responsibility to avoid that its crash affects other programs running simultaneously. Obviously this has no relevance to the original discussion about the namecanvas but I thought it was interesting as a general matter. And I preserved the subject to keep it identifiable as a followup to that thread.

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Re: namecanvas
by Matteo Sisti Sette 10 Feb '07

10 Feb '07

F. Barknecht wrote > Well, that's an error of the patch-author. Well, whenever a program crashes and can't recover (that is, it forces the operating system to close it), it is ALWAYS a bug of the program (unless it is of the operating system of course) no matter how erroneous the input from the user (i.e. the patch author).

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stereo playsf~
by alexandre r. decoupigny 10 Feb '07

10 Feb '07

hello there again.. i was not so clear.. basically what i am wondering about is if there are any object or abstractions that are able to play back (in a loop) a couple of approx. 1.5 min.. stereo interleaved files .. : ) best alexandre -- alexandre r. decoupigny www.listeningart.blogspot.com www.myspace.com/alexandredecoupigny

1 0

Vasp is now broken
by Ed Kelly 10 Feb '07

10 Feb '07

Greetings, I've compiled the latest version of vasp and it appears to be broken. The library gets loaded - the messaz\ge is posted in the PD window at load time, but none of the objects are loaded (dotted-line boxes). I'm in some crunch time - software to be finished involving vasp.... Best, Ed \/ /\ | | <======> | | / \ Lone Shark "Aviation" out now on http://www.pyramidtransmissions.com http://www.pyramidtransmissions.com/process.php?pname=ShopfrontProcess-Start ___________________________________________________________ The all-new Yahoo! Mail goes wherever you go - free your email address from your Internet provider. http://uk.docs.yahoo.com/nowyoucan.html

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Problem with Ground Control Pro and [midi-in]
by Benjamin Brown 10 Feb '07

10 Feb '07

Hello everyone, I just purchased a Ground Control Pro in hopes that I could use the midi foot controller to control my PD patches. However, I don't get any midiIn output. Using the Test Audio Midi patch in the PD extended-0.39.2 build I receive no output to the message boxes. I have made sure the pedal is sending messages by checking the AUDIO/MIDI settings in OSX, I get nice test tones and flashes when pressing the foot buttons, in the System Utility(Audio/midi). I use a USB UNO midi interface to talk between the GCPro and the Powerbook g4, I have made sure that I have selected the midi interface in the PD preferences, applied and hit ok. I have read to type pd -listdev, but I don't know exactly where to put this, I have set it in startup flags and tried sending a message from the File menu. Has anyone ran into this problem before? Or have a diagnositc program that I could run that could perhaps translate the midi messages into midi messages the PureData understands? I have also plugged in a midi keyboard(same Uno interface), Puredata gets those messages fine. I have the pedal setup with the factory settings, there is a Gcpro manual at the Voodoo labs site(if you need any reference). I would much appreciate any help in any direction, thanks a bunch. Benji Brown

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Pd-list February 2007