Pd-list March 2010

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152 participants
270 discussions

Re: [PD] Max Smoother Audio than Pd?
by Matteo Sisti Sette 15 Apr '10

15 Apr '10

Frank wrote: > It's not so much the tool, as it is the skills that makes music > sound good. That is true for really good tools. Needless to say that Pd is one of them. But there are a lot of tools out there with which it is not so much the skills as it is the tool that makes music sound good - meaning that a completely unskilled musician can make something that sounds "pretty good", and a skilled musician cannot make things sound much better (and usually won't use such tools). In those cases the music usually "sounds like the tool". Those are bad tools for making music, though they can be excellent tools for having fun. > If you use a [phasor~] as a sawtooth oscillator source, > you're "wrong" in both Max and Pd. Sorry may I ask why? Do you mean that using a sawtooth oscillator source is a wrong starting point for creating interesting music, or that [phasor~] is not the right object to use as a sawtooth oscillator?? In the latter case, what should you use instead?? (ohhh, I see maybe: it is because of aliasing isn't it? indeed I always wondered: how do you simulate a sawtooth oscillator and avoid aliasing [without a huge oversampling and filtering]?) -- Matteo Sisti Sette matteosistisette(a)gmail.com http://www.matteosistisette.com

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Question about ds tutorial
by Jonathan Wilkes 13 Apr '10

13 Apr '10

In doc/4.data.structures, what's the difference between 14.partialtracer.pd and 15.partialtracer.pd? -Jonathan

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PD_FLOATYPE=double
by errordeveloper＠gmail.com 13 Apr '10

13 Apr '10

Hello Miller and everyone on the list! i have finally got around testing pd compiled to use double precision floats.. what i did was this: pulled the sources from miller's git repo, in fact i didn't realise there was a master tree like this! (if i understand it correct it's the current version repository? the version that i can see in Help->About is reported to be 0.42.5 or may be it's .42.5+ ? please correct me on that ..) so i just used `env CFLAGS="-pipe -O2 -march=athlon64 -DPD_FLOATTYPE=double' ./configure` CFLAGS="-pipe -O2 -march=athlon64" is what i always use ..tought all versions of pd i have compiled before were compiled with this CFLAGS. then `make all` whent fine, but failed to compile sigmund~, that's ok as haven't used sigmund~ yet ..)) then i ran pd and tryied the testtone.pd ..and that's what was weired - it output noise+sine ..hm maybe to do with conversion ..i use RME Hammerfall card .. so there is conversion heppening somewhere .. ok, made another patch, basica [osc~ 200]--[dac~ 1] and that gave DC into the soundcard. using number-[osc~] WORKED and number-[vline~]-[osc~] DID NOT..(( cannot tell if that was a pure sine for 100%, but somewhere most likely pure :) so trying to use a phasor~ seems to be failing too .. has anyone else tested this propertly? as Miller says in CHANGES.txt: " 0.42.0 changed definition of t_float, t_sample, t_floatarg so that they can be set via #defines (PD_FLOATTYPE, etc). " ..hm what does "etc" mean?? maybe i need to define something extra? or [osc~] is all we got working with doubles so far?? well, i checked again ..and it's actually not that near to a sinewave ..it's got some harmonics ..hm i can test anything else ..but there is a general issue to be resolved. can anyone help? it would be very nice to get this working ..hopefully 64bit DAC's are not to far from the general public market :) oh, i forgot to give some details: gcc (Gentoo 4.3.4 p1.1, pie-10.1.5) 4.3.4 so basically i am on gentoo, it's a current stable branch ..sort of but i think it doesn't matter really..it's to do with general porting i reckon!

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"Open file" in specific directory
by meino.cramer＠gmx.de 13 Apr '10

13 Apr '10

Hi, how can I convince pd-extended to start the fileselector box in a specific directory which is not my $HOME ? (I am using pd-extended on Linux). Thank you very much in advance for your help! Best regards, mcc -- Please don't send me any Word- or Powerpoint-Attachments unless it's absolutely neccessary. - Send simply Text. See http://www.gnu.org/philosophy/no-word-attachments.html In a world without fences and walls nobody needs gates and windows.

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compiling Pd-extended on Ubuntu Netbook Remix 9.10
by Ichabod 05 Apr '10

05 Apr '10

I couldn't find any Pd-extended builds for Ubuntu Netbook Remix 9.10 (is there one anywhere?), and the autobuild for Ubuntu Karmic i386 didn't work, so I tried compiling from source. I extracted the source and then cd'ed to the ~/Pd-0.41.4-extended/pd/src folder and ran autoconf and then ./configure. At that point, it gives me a bunch of "checking for..." messages and then ends with "no tcl library found." I have tcllib installed. What am I doing wrong? --Stefán

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strange colors with pix_record
by Max 03 Apr '10

03 Apr '10

Hi List, i wonder why i get these strange colors when using pix_record with GEM ver: 0.92.2 compiled: Jan 20 2010 on OS X 10.6.3 Any Ideas? this is grayscale in GEM but instead it is quite blue in the recorded quicktime.

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Re: [PD] tabread4~ "broken" interpolation algorithm - was Re:, Max Smoother Audio than Pd?
by Matteo Sisti Sette 03 Apr '10

03 Apr '10

> It occurs to me that there exists one very obvious function for which > the squared error is minimized for a 4-point interpolator. 4-point > interpolator impulse functions have to be 0 outside the interval > [-2,2]. > > So, > E=|f(x)-sinc(x)|^2 is minimized when > > f(x)={sinc(x) -2<x<2 , 0 elsewhere I may be missing something but I'm afraid the E in your formula is not the error that is supposed to be minimized. The ideally interpolated signal (which is the one in reference to which the error has to be minimized) is not just a sinc: it is the sum of an infinite series of sinc's centered at the sampled points and scaled with the sampled values. (I won't try to write it in a latex-like fashon, I would certainly get it wrong - not because of latex syntax, I mean I would get it wrong even if I tried to write it down manually) Please correct me if I am wrong -- Matteo Sisti Sette matteosistisette(a)gmail.com http://www.matteosistisette.com

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Re: [PD] [PD-announce] OS X 10.6: unplugging headphones crashes Pd
by Derek Holzer 02 Apr '10

02 Apr '10

Sorry for the added noise, this meant for the Pd list, not Pd-announce... D. On 3/26/10 3:27 PM, Derek Holzer wrote: > This is a new one to me, but four of my students can reproduce it > every time with Mac OS 10.6, with or without JACK, using Pd-Extended > 0.41.4. Unplugging or plugging the headphones while Pd is running > freezes Pd completely, requiring a Force Quit. It does this > regardless of whether audio processing is turned on or off. I tried > looking at Aggregate Devices, however the built-in output already > appears as one device. Anybody know how to fix this one? > > D. > -- ::: derek holzer ::: http://macumbista.net ::: ---Oblique Strategy # 161: "Trust in the you of now" _______________________________________________ Pd-announce mailing list Pd-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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dynamic gui masking problem
by Roman Haefeli 02 Apr '10

02 Apr '10

Hi all I'm trying to create a GOP abstraction for selecting an item from a list. The cool thing about GOP is, that iemguis are still visible, even if they are moved outside the GOP area. However, the problem I'm facing is that they are masked by other objects in the patch, when they are moved to area of some other object. A Solution: Dynamically creating objects on the fly makes them appear above all other objects in the patch.Unfortunately I couldn't figure out a way to delete them to make them disappear, when they're not needed anymore. Probably there is another way of tweaking the z-index of objects? Or is there a way to dynamically delete objects without having to 'vis' a canvas and putting it into edit mode (and without printing errors to the console)? Attached is an example patch to illustrate the masking problem. Roman

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Loop object
by Jerome Covington 02 Apr '10

02 Apr '10

Looking at the [loop~] help example but am unable to create any noise. When I click on array 2 in play mode the following is logged in the console. error: conflicting block~ objects in same page play~'s error: no such array '0-table' play~'s error: no such array '1-table' play~'s error: no such array '2-table' play~'s error: no such array '3-table' Is there an issue with this example? (Entirely possible that it is perfect, and that I am to blame.) Are there other useful examples of the [loop~] object? -- Regards, Jerome Covington . . . . : . . . . : "define audio development"

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Pd-list March 2010