Pd-list February 2012

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138 participants
172 discussions

bonk~
by joe higham 26 Feb '12

26 Feb '12

Hi @ PD List Just a quick question to ask if someone could help me with the bonk~ object I'd be most grateful : a) Some more 'plain' information about bonk~ and it's 2 outputs. I've (naturally) read the 'help' patch on the object. b) How can I control (more precisely) the input level of this object? I did look at the terminal using a [print] object to see if I could control things a little better .... but, I haven't really understood the problem, and therefore the solution. I've also tried using [thresh( and [minvel( but they seem a little 'hit or miss' due to my lack of knowledge. Thanks in advance Joe (Higham)

4 6

Re: [PD] C++ for reusable dsp lib - or better use C?
by katja 26 Feb '12

26 Feb '12

On Sun, Feb 26, 2012 at 11:49 AM, Jamie Bullock <jamie.b.bullock(a)gmail.com> wrote: > I follow your work with interest, and this sounds like a promising new development. I think writing generic routines, e.g. in the form of a shared library that can then support bindings for various contexts is a good one since it enables your work work to have benefits beyond Pd. This was the approach I took with libxtract, which you may be interested in from a feature extraction perspective. > > Also, have you looked at BBcut for SuperCollider at all? Sounds like you're trying to do a similar thing and it may be worth looking at how Nick Collins has solved some of the problems. I'd love to see a libBBcut or similar. I guess the key challenge is handling timing and scheduling for the real-time "cut n paste" without duplicating functionality already provided by Pd, SC or whatever. Thanks for your pointers, Jamie. I had not come across your libxtract project yet. It's very rich in functionality. And Nick Collins yes, he brings a lot of interesting signal analysis work to the realtime / open source community, but seems to forget Pd for some reason. With a lot of useful projects already available (also think of Aubio), it may seem a bit weird that I feel a need to add yet another new lib. But it was the better-than-expected quality and efficiency of pitch tracker [helmholtz~] which made me think that I could contribute something. It shall be a compact library, not focusing on width but on depth: quality, robustness and efficiency of a few procedures which I consider essential for real time cut & paste. Algorithmic recomposition won't be part of it, that can be done in patches. My lib will mainly deliver cuepoints and pitch reports. But some 'customers' for this sort of data must live together with the analysis in one Pd class, where they can share the time index associated with the analysis process. A PSOLA pitch shifter for example. Or a signal&cuepoint recorder like [slicerec~]. In the end, analysis and processing procedures must be integrated in that one lib to get access to the time index. This 'central clock' is the key challenge indeed. It's cycle depends on the largest buffer size associated with the procedures, and for efficiency it must always be a power of two. Other cycles can be found by bitmasking the central clock. Well I've handled it in [slicerec~], it is a matter of upscaling the principle to more complex interactions. Katja

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sigmund list sort
by labyrinthuscochlearis 26 Feb '12

26 Feb '12

hi all, what would be a good way to transform sigmund~'s peaks output so that I get a list with peak amplitudes but in the ascending order of the corresponding frequencies? thanks, christian

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5.1 sound from quicktime video files
by altern 25 Feb '12

25 Feb '12

hi quick question a bit on a hurry ... is there any way to get control over sound from three quicktime video files in order to send each to a different output in a 5.1 video system? I have three different video projections and need to position each of the video sounds in a different area of the space. as far as I understand this would be impossible as quicktime video play in GEM does not offer any control over sound because only under mac you get the sound played, and this is in fact just done by the QT system and not by PD if all this is not possible withing PD, any suggestions on how to achieve this? I am thinking about launching the videos with for instance VLC and routing the audio by some means into PD or something similar. thanks enrike

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Re: [PD] GEM question [OT]
by Cyrille Henry 25 Feb '12

25 Feb '12

Le 25/02/2012 01:54, Pagano, Patrick a écrit : > I assume a cube with height width and depth params then : scaleXYZ | cube should be equivalent. (use separator if you want to chain this objects.) cheers Cyrille > > > On 2/24/12 7:31 PM, "Cyrille Henry"<ch(a)chnry.net> wrote: > >> certainly. >> >> cheers >> Cyrille >> >> ps. if you want me to explain you the equivalent of jitter "cuboid", >> you'll have to explain me what "cuboid" is. >> >> >> Le 24/02/2012 20:59, Pagano, Patrick a écrit : >>> Hi please forgive the OT >>> But is there a JITTER equivalent of "cuboid"? >>> >>> >>> >>> >>> _______________________________________________ >>> Pd-list(a)iem.at mailing list >>> UNSUBSCRIBE and account-management -> >>> http://lists.puredata.info/listinfo/pd-list > >

2 1

Resonant filter using cpole~ czero~
by Ed Kelly 25 Feb '12

25 Feb '12

Hi all, Here is my first attempt at making a resonant lowpass filter using cpole~ and czero~ objects. It's the first version I've made which actually sounds halfway towards what I want to achieve, which is a decent diode-ladder or transistor-ladder filter emulation. I want to make this using only vanilla objects, particularly rpole~, cpole~ etc. so that they can be ultra-portable and signal-controlled. Also, http://www.timstinchcombe.co.uk/index.php?pge=poles#diode Does anyone else have any ideas, or patches we can share? Ed Gemnotes-0.1alpha: Live music notation for Pure Data http://sharktracks.co.uk/

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GEM question [OT]
by Pagano, Patrick 25 Feb '12

25 Feb '12

Hi please forgive the OT But is there a JITTER equivalent of "cuboid"?

2 1

IMAP4 or POP3
by José Manuel Páez Moncaleano 24 Feb '12

24 Feb '12

Hey!!! I’m trying to get info from an email account to work with it in pure data Is there any library, or maybe an object that let me do that??

3 2

Altova Mapforce
by Mathieu Bouchard 23 Feb '12

23 Feb '12

If that may reassure you... not only Pd has messes of uncooked spaghetti going under boxes and stuff. And not only dataflow diagrams have them. This is an example in a data-relational diagram in a database app : http://www.altova.com/images/landing_page/mapforce_screenshot_large.png And cooking the spaghetti softens the spaghetti but it's still spaghetti. OTOH, it would be a lot more readable already if the middle boxes were just placed in proper places... ______________________________________________________________________ | Mathieu BOUCHARD ----- téléphone : +1.514.383.3801 ----- Montréal, QC

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patching circles other than New York
by Jim Hickcox 23 Feb '12

23 Feb '12

I am wicked jealous of Sofy's New York Patching circle, because I'm just far enough away and just employed enough that I can't get up for it. Are there folks near Washington DC who would like to have a patching circle? I will try to organize a space if there are some people into it And there can be beer here, too, if that's all it takes. -Jim Hickcox www.jimhickcox.com

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Pd-list February 2012