Pd-list November 2014

pd-list@lists.iem.at

64 participants
66 discussions

retrigger [tabread4~] sampler without clicks
by Federico Galland 17 Dec '17

17 Dec '17

Hi, I'm working on a granular sampler borrowing parts of the patch on pd-tutorial (http://www.pd-tutorial.com/english/ch03s07.html). Everything works smoothly except for one little annoying problem. If I fire the sample before the last one is through, sometimes I get a click at the beggining of the playback. This is happening on a percussive sound (rapid envelope attack) so I'm guessing it's got something to do with [tabread4~] failing to interpolate between whatever the last amplitude value was and the first wavetable value. This http://crca.ucsd.edu/~msp/techniques/latest/book-html/node63.html can probably be used to solve my problem, but I can't figure out how (or where in the patch) I should implement it. Any clues would be greatly appreciated. Thanks a lot, and have a good one. ps. I tried to comment the patch to make it understandable. It is still, however a work in progress. Let me know of any questions. -- Federico Galland <federicogalland(a)gmail.com>

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[PD-announce] All-in-one 'websocket server + cross-browser multiplayer/multitouch demo' patch for Pd-extended
by Nicolas Lhommet 30 Nov '16

30 Nov '16

"websocket-server in a patch.pd" single pd patch file contains a reusable and fully documented websocket server, meant as an easy way to experiment with Pd<->web-browsers communications through websockets, without the need of other software or any external to compile A demo is included in the same patch : 'Flames', a simple cross-browser, multi-touch and multi-player graphical interface which makes Pd play creepy sounds :) and its javascript code for websockets is also documented. Just try it : open it with Pd-extended 0.43.4 on Windows, Mac or Linux, fire any recent web-browsers (on same machine or other computer, smartphone or tablet on same local network) with the URL provided in the main window, and you're good to go ! You can download the patch from these forums : http://puredata.hurleur.com/sujet-10062-websocket-server-patch-extended-dem… required to get the file) direct link to patch : http://puredata.hurleur.com/attachment.php?item=4945 Cheers, Nicolas Lhommet

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moog~ in pure pd?
by Dan Wilcox 18 Feb '16

18 Feb '16

Forgive me, I'm no low level dsp guru. I'm curious. How would one make the ggee [moog~] external in pure pd? [vcf~] sounds close, but of course, it's a band pass so it's not a real replacement. I messed with rjlib [e_beequad= + [u_lowpassq] which sounds pretty good, but there no signal rate frequency control, which I'd need for those nice filter sweeps. I'm trying to lessen my reliance on externals (where possible) and moog~ is one of those without an obvious replacement. -------- Dan Wilcox @danomatika danomatika.com robotcowboy.com

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searchpath inside patch
by Achim Bornhoeft 18 Jan '16

18 Jan '16

Is there a possibility to put a statement (relative pathname) inside a patch where to look for additional abstractions, for example to search for abstractions inside a subfolder "abs" which is in the same directory than the patch itself. Thanks for help, Achim

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MobMuPlat - data from several iPads to one PC
by Christian Fischer 14 Jan '16

14 Jan '16

Hi there, not sure whether I can make out the forest for the trees after x hours of fiddling… What would be the best way to send data (one way) from several iPads to one master patch on PC, connected adhoc wireless? So far I tried only with one iPad, used MobMuPlat and simple ‚netsend' / ‚netreceive'. For one iPad it worked pretty fine! Now I wonder what about several iPads. Can’t test before Monday, but I would like to prepare everything before… The idea is several people use the iPads as interfaces to manipulate a master patch on a PC connected to interface, several speakers etc… They do not have to get any feedback from master patch. Data flows only one way. MobMuPlat does not take ‚packOSC‘. Would ‚LANdini‘ be better for several iPads (could not get it running so far. still trying…) Or is there something else? Any experiences? Thanx & Best! chris

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slide~ (msp) in pd
by peiman khosravi 08 Jun '15

08 Jun '15

Since I'm on a mailing spree: how can I make a pd version of slide~ (MSP), which, according to the msp reference, is a logarithmic lowpass filter for smoothing envelops. Anything similar will do. I'm using vline~ for now to smooth out midi faders but it doesn't feel quite the same. And on a related subject: what is the best way to create an exponential signal ramp? Many Thanks Peiman *www.peimankhosravi.co.uk || RSS Feed<http://peimankhosravi.co.uk/miscposts.rss> || Concert News <http://spectralkimia.wordpress.com/>*

5 9

Chebyshev waveshaper
by sebfumaster＠aol.com 07 Jun '15

07 Jun '15

Hi all, If anybody's interested I made a chebyshev wave shaper external. it's on the pd forum http://puredata.hurleur.com/sujet-10371-chebyshev-waveshaper-controlled-sig…. I know there's already creb/cheby~ but this is slightly different because you cannot set the "harmonics" but you can control the order with a signal. adjacent orders of polynomial are interpolated with the pd cosine table which I have no idea how to use like the cos~ object but I did it anyway and it seemed to work. Suggestions would be appreciated, this is only my 3rd small c program -Sebastian

3 4

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!

6 7

data structures......
by i go bananas 15 Dec '14

15 Dec '14

something i have thought for a LONG time, and i guess a few others have too. They are just too hard to use. but they keep popping up in updates to pd, so it seems they are still being worked on. couldn't that work be put to better use? like, for instance, on a native PD state saving system???

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Raspberry Pi & pd 0.46 with real time priority
by katja 11 Dec '14

11 Dec '14

Without real time priority, Pd on Raspberry Pi easily suffers from drop outs. When I run vanilla Pd (for example 0.46-2 executable from Miller's site http://msp.ucsd.edu/software.html) on Raspbian with option -rt, it says that priority scheduling failed, and 'audio I/O error' flashes whenever I move the cursor (I'm not running the Pi headless). I've noticed that puredata 0.43 as installed from Raspbian repository can run with real time priority even when started by normal user. I wondered where the difference is: in the Pd version or in the fact that puredata from repository is installed and owned by root. Or maybe yet another factor that I can't think of. In any case, I built and installed puredata 0.46.2 from repository source (described here: http://lists.puredata.info/pipermail/pd-list/2014-11/108543.html). This build works with normal user real time priority too. In order to see if ownership matters, I changed ownership of Miller's build to root. Still it can't run with real time priority when loaded by normal user. Permissions are the same for Miller's build and puredata from repository (-rwxr-xr-x). Does anyone know a way to run Miller's build with real time priority (apart from running with root permission, which I don't want)? Though I'm happy with puredata 0.46.2 as built from repository source, there may sometimes be a reason to use or test another build. Katja

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Pd-list November 2014