Pd-list February 2015

pd-list@lists.iem.at

72 participants
71 discussions

communicating with c++ app using OSC
by Paul Keyes 12 Mar '15

12 Mar '15

Hi, I'm sending a list from pd to a c++/liblo app like so: [mylist] | [list prepend /osc_addr] | [list trim] | [packOSC] ... How can I read this list into an array or vector in the c++ app? There seems to be lots of libraries, I've been testing liblo, but nothing straightforward for receiving a list. Any help is greatly appreciated!

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Updating Pd-Extended
by João Pais 05 Mar '15

05 Mar '15

Hello list, I wanted to ask, what is the current state of the pd-extended distribution? Pd-vanilla has had some regular updates recently (some of them with interesting developments), but the latest pd-ext version is still from almost 2 years ago. Best, jmmmp

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bandlimited wavetables for pd vanilla
by Claude Heiland-Allen 02 Mar '15

02 Mar '15

Hi all, Today I implemented bandlimited wavetables in Pd vanilla using the idea behind mipmapping in OpenGL (ie, generate many filtered and downsampled versions of a source, use the most appropriate version(s) by a function of the derivative of the lookup index). More info and full source (quick start tutorial: bl-example.pd): https://gitorious.org/maximus/pd-bl License: same as Pd vanilla. Advantages over other implementations: * Can generate wavetables from any waveform stored in a table. Disadvantages: * The higher harmonics are reduced compared to an optimal method. Claude -- http://mathr.co.uk

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high channel count audio output on the cheap?
by Chris Chronopoulos 01 Mar '15

01 Mar '15

Hi all, I've been looking for an inexpensive way to start playing around with the HOA library <http://www.mshparisnord.fr/hoalibrary/en/> from within puredata. But I've had trouble finding an audio interface with lots of analog outputs (16 or more) that doesn't break the bank. The most promising candidate I've found is maybe the Focusrite 18i20 <http://www.sweetwater.com/store/detail/Scarlett18i20>, but even that seems like overkill: I don't need inputs, or pre-amps, or MIDI or ADAT, just output. Anyone have any suggestions for a bare-bones, high-channel count DAC? Preferably with USB or PCI interface, preferably Linux compatible? Thanks in advance, Chris Chronopoulos

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pd-extended on Fedora 21
by Felix Homann 28 Feb '15

28 Feb '15

Hi, did anyone manage to build pd-extended for Fedora 21? I didn't (obviously, that's why I ask). I already installed Tcl/Tk 8.5 since Fedora 21 only ships Tcl/Tk 8.6. But the closest I came to a workin pd was one which started but in which I could not even a dac~ object could be created. Regards, Felix

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Enable autopatch by default Pd-extended 0.43.4
by JF 26 Feb '15

26 Feb '15

I've tried putting '-autopatch' and also tried '--autopatch' in Preferences->Startup flags but to no avail? Is this possible? Thanks in advance,John.

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knowing if there's anything connected to an [inlet~] in a subpatch or abstraction
by Alexandre Torres Porres 26 Feb '15

26 Feb '15

hi, trying to make an abstraction here that loads a number argument into an audio signal chain, but I'd like to update the argument to whatever is coming from an [inlet~], but then I'd like to load back the argument whenever there is no signal connected to this inlet. The only way to do this is if I know wether there was something connected to this inlet or not, and I believe that's impossible in a subpatch/abstraction, right? So, the only way out would be compiling a new object, huh? thanks

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Re: [PD] "spigot~"
by Dan Wilcox 24 Feb '15

24 Feb '15

Yeah, same here, except I use a line~ with a 5 ms ramp to avoid clicks. It’s c_spigot.pd in https://github.com/danomatika/rc-patches/tree/master/rc <https://github.com/danomatika/rc-patches/tree/master/rc> -------- Dan Wilcox @danomatika danomatika.com <http://danomatika.com/> robotcowboy.com <http://robotcowboy.com/> > On Feb 24, 2015, at 6:00 AM, pd-list-request(a)lists.iem.at wrote: > > From: IOhannes m zmölnig <zmoelnig(a)iem.at <mailto:zmoelnig@iem.at>> > To: pd-list(a)lists.iem.at <mailto:pd-list@lists.iem.at> > Date: February 23, 2015 at 6:28:53 PM EST > Subject: Re: [PD] "spigot~" > > > On 02/23/2015 11:10 PM, Gerhard Lang wrote: >> How do you realise "spigot~" ? > > [*~] > > fdsr > IOhannes

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mixer implementation
by Alexandros Drymonitis 24 Feb '15

24 Feb '15

I was checking Integra Live's modules and a Mixer module uses this technique to mix two signals: [0 \ <- value between 0 and 1 | [* pi/2] | [t f f]_____ | [sin] [cos] | <- multiplied by the second signal | | <- multiplied by the first signal The above ASCII patch is a simplified version focusing on the basic technique. Doing the same and sending the result to [env~] stays between 95 and 98 approximately, but graphing it in an array, it exceeds the limits (-1, 1) by 0.4 approximately. Is this the way to mix two signals, or is there something else I should be looking for?

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IP cam to GEM
by Csaba Láng 24 Feb '15

24 Feb '15

Dear list, I would like to have 6 full HD IP cams on a local network projected live stream via 6 computers on the same network. Is there any solution than pix_vlc? If no is pix_vlc already part of pd-extended or I have to compile it from source? What are the basic commands for the pix_vlc object? Is there somewhere a full help file to it? Sorry for asking, but I used it some years ago last time, and it was a pain i the a** to get all the dependences and make it work at the end on debian. Now I would use mac, windows and linux, as it is hard to find 6 computers with the same parameters in a gallery :) Thanks for any hints in advance: Popesz

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Pd-list February 2015