Pd-list March 2009

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134 participants
220 discussions

bonk~ license issue
by Frank Barknecht 28 Mar '09

28 Mar '09

Hallo, To Whom It May Concern: bonk~.c in Pd sources prior to version 0.42 has a little license issue. Old versions, e.g. http://tinyurl.com/cz6s95 include this section: 2 (tapel(a)ucsd.edu). Permission is granted to use this software for any 3 noncommercial purpose. For commercial licensing please contact the UCSD 4 Technology Transfer Office. which obviously is not compatible with pd-extended, Debian etc. This issue is fixed in the current versions of bonk~.c were we find the usual "Standard Improved BSD License" clause, see e.g.: http://tinyurl.com/ceotxv If you distribute Pd with bonk~, you probably want to update your sources. You get new features, too. Ciao -- Frank Barknecht Do You RjDj.me? _ ______footils.org__

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Delay effect without clicks
by Bjørn Nielsen 28 Mar '09

28 Mar '09

Hey PD list This is my first mail to the list and I am a newbie in PD, so please bear with me. I am trying to make a patch that simulates the delay effects I use as a stompbox for my guitar. I.e. a signal delay line, with a parameter of feedback and a parameter of delay time. While changing the delay time parameter the ongoing sampled part should change pitch. My first attempt (as in the attached patch) is to use delread~/delwrite~, but changing the lenght of the sampled part in delread~ makes a lot of clicks noises (which can be fun, but not what I intended) and it do not change pitch. My max/msp friend said I should instead of clipping the sample, make it run faster. So I tried to figure if that was possible with delread~, vd~ or using arrays instead with tabread(4)~, but I have not found the golden key yet. I would be very happy if somebody could lead me in right direction. Thanks, Bjørn

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can you help me with this vocoder?
by babsyco babsyco 28 Mar '09

28 Mar '09

Hi guys, What an amazing resource this list is! Very exciting to me. Anyway, I'm after some help with Miller Puckette's vocoder patch. I've used vocoders before, but I can't see any of the recognizable features in this patch. What I wanna do is use an [adc~] as a modulator signal, a white noise generator as a carrier signal, and simply have a mix slider. I've tried the vocoder help patch, but it didn't help me very much. Anything you guys can offer me would be greatly appreciated-I've attached both patches. Babsyco. _________________________________________________________________ Need a new place to rent, share or buy? Let ninemsn property help. http://a.ninemsn.com.au/b.aspx?URL=http%3A%2F%2Fninemsn%2Edomain%2Ecom%2Eau…

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experiments with fiddle~
by Athos Bacchiocchi 27 Mar '09

27 Mar '09

i'm trying to experiment and learn how [fiddle~] works, using it to control the pitch and the envelope of a sawtooth oscillator through an electric guitar directly plugged into my soundcard (an edirol fa-101 with preamplifiers). I read the help i made experiments, but i still have doubts on some issues. For example how the low and high thresholds work? The explanation was a bit obscure to me. I guess that: - the low threshold is the one at which raw pitch/amplitude output becomes different than zero, showing the value of both. - the high threshold is the one at which cooked output is changed, and a bang is sent out from the bang outlet. But i noticed that if the high threshold is less than the low one, i get a never stopping sequence of bangs. Why? Is it an issue of fiddle~ ? I would also like to understand better the use of vibrato and reattack, the help was not clear to me. Then, i tried to find a way to send a "release note" signal (so i can make synth note emulate the duration of guitar note) to the envelope generator: i'm using vline~ with two possible "in" messages, a ramp up banged by the bang outlet of fiddle, and a ramp down banged when the raw amplitude output becomes zero. I think this will create problems when i will try to recognize polyponic notes. But also for monophonic purposes, i still have some troubles: if i take the pitch information from the cooked output, as soon as i get the bang the envelope attacks, but there is a recognizable delay time for cooked pitch output to change from old value to new, leading to a disturbing pitch switching attack. Instead, if i use the raw pitch output, no problem with attack, but if i set a too long release time, i can hear the pitch going to zero before the sound has disappeared. Is there a more elegant solution for this? In the end, i would like the velocity of the synth note be proportional to the level of incoming guitar note. My first idea is to snapshot the value of raw amplitude output few milliseconds after the note-on bang. Is it a good idea or, again is there a more elegant solution? thanks, athos

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pd-extended font paths
by Phil Stone 27 Mar '09

27 Mar '09

Do there really need to be eight different font-related entries in the path list for Pd-extended on OS X? If so, why? Phil

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steep filter?
by João Pais 27 Mar '09

27 Mar '09

Hi, does anyone has a good suggestion for a very steep filter? Preferably something that cuts through the frequencies without any rollof at all? (if possible) I've tried the iemlib hp10_** filters, also 2 in a row, but the result is still too gradual. Putting 16 lop~ in a row make makes roughly the same result. I wanted to avoid fft filters, because they might alter the original signal. Or is there any other option? (even if it has to be fft) cheers, JoÃ£o -- Friedenstr. 58 10249 Berlin (Deutschland) Tel +49 30 42020091 | Mob +49 162 6843570 jmmmpais(a)googlemail.com | skype: jmmmpjmmmp

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Re: [PD] Purple/Green Flickering With GEM
by Hans-Christoph Steiner 27 Mar '09

27 Mar '09

I don't know the details, but I remember hearing its related to buggy video card drivers. Things that work fine on some cards cause this on others. Check the archives for details, I think there are also a bug report that migh tbe related, if so, you should add your details there: https://sourceforge.net/tracker/?func=detail&aid=1839973&group_id=64325&ati… .hc On Mar 26, 2009, at 11:39 PM, james murray wrote: > Common? Really? Is there any sort of good explanation for this? > After testing it for a few hours it's definitely only occurring > after I select restart and never happening when I shut the computer > down and then restart manually.... I guess I'm curious about why > this would be happening, and is there anything out there more > informative than the pd forums for snafus like this? I spent a good > chunk of my day trying to find different ways to describe the error > but could get no useful search results in there... > > Thanks so much for the input Hans-Christoph, it's really > appreciated, I'll give the workaround you suggested a shot in the > morning and see what happens. > > J > > On Thu, Mar 26, 2009 at 6:49 PM, Hans-Christoph Steiner > <hans(a)eds.org> wrote: > > Yeah, its pretty common. If you are using [pix_movie], try using: > > [pix_film] > | > [pix_texture] > > .hc > > On Mar 26, 2009, at 1:18 PM, chris clepper wrote: > >> Need some more info: >> >> Video card model, what the piece uses in GEM, does any other app >> have problems? Maybe post a pic or video of the screens too. >> >> On Thu, Mar 26, 2009 at 12:52 PM, james murray <james.n.murray(a)gmail.com >> > wrote: >> Hello List.... >> >> I've got a two screen GEM piece running on Plasma displays that has >> recently started to, on reboot, begin flickering the GEM screen in >> a neon purple/green mode. I'm wondering about whether the video >> card in my G5 tower is on the way out, and as a result, this glitch >> is occurring... It seems more prone to enter into this green/purple >> rave when the computer reboots, and less/never has occurred if we >> do a hard shutdown followed by startup. Any ideas? Confirmations? >> Counter-arguments... this is a new one for me, and insight would be >> grand. >> >> J >> >> _______________________________________________ >> Pd-list(a)iem.at mailing list >> UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list >> >> >> _______________________________________________ >> Pd-list(a)iem.at mailing list >> UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list > > > > ---------------------------------------------------------------------------- > > News is what people want to keep hidden and everything else is > publicity. - Bill Moyers > > > ---------------------------------------------------------------------------- News is what people want to keep hidden and everything else is publicity. - Bill Moyers

1 0

words for style guide: rewind and reset
by Hans-Christoph Steiner 27 Mar '09

27 Mar '09

Hey, I just went thru a bunch of interfaces and noticed a good pattern in wording. I propose to make this part of the style guide: rewind - go back to the beginning of a chunk of data (used in: textfile, binfile, msgfile, etc.) reset - clear the data from a container; or, go back to the initial state (used in: zexy/index, cyclone/MouseState, maxlib, etc.) .hc ---------------------------------------------------------------------------- "[T]he greatest purveyor of violence in the world today [is] my own government." - Martin Luther King, Jr.

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Purple/Green Flickering With GEM
by james murray 27 Mar '09

27 Mar '09

Hello List.... I've got a two screen GEM piece running on Plasma displays that has recently started to, on reboot, begin flickering the GEM screen in a neon purple/green mode. I'm wondering about whether the video card in my G5 tower is on the way out, and as a result, this glitch is occurring... It seems more prone to enter into this green/purple rave when the computer reboots, and less/never has occurred if we do a hard shutdown followed by startup. Any ideas? Confirmations? Counter-arguments... this is a new one for me, and insight would be grand. J

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[lrshift~] inlet doesn't accept floats (any more?)
by Martin Schied 26 Mar '09

26 Mar '09

Hi, just to be sure before sending another "false" bug report. I was looking at lrshift~-help.pd, there's an example of a float box going into [lrshift~]'s signal inlet, but changing this float values causes an error post: error: lrshift~: no method for 'float' Pd version 0.41-4extended-20090323 compiled 11:51:58 Mar 23 2009 thanks, Martin

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Pd-list March 2009