Pd-list January 2012

pd-list@lists.iem.at

104 participants
158 discussions

Re: [PD] number to fractions external?
by Alexandre Torres Porres 12 Feb '12

12 Feb '12

when I "change the maximum denominator value" results are weird and Pd freezes. cheers 2011/12/17 Mike Moser-Booth <mmoserbooth(a)gmail.com> > I just added it to my library on GitHub: > > https://github.com/dotmmb/mmb > > But, yeah, feel free to use it however you want. > > .mmb > > On Sat, Dec 17, 2011 at 2:07 PM, Alexandre Torres Porres > <porres(a)gmail.com> wrote: > > this looks great huh? > > > > I have this pd examples that deal with tuning theory, are you releasing > this > > somewhere so i can use it? > > > > thanks > > alex > > > > > > 2011/12/17 Mike Moser-Booth <mmoserbooth(a)gmail.com> > >> > >> They're not working? Huh... Well, here's the text versions: > >> > >> dec2frac.mmb.pd: > >> > >> #N canvas 60 22 908 750 10; > >> #X obj 298 36 inlet; > >> #X obj 573 359 t l; > >> #X obj 240 574 list; > >> #X obj 198 415 sel 0; > >> #X obj 207 168 expr 1/$f1; > >> #X obj 478 359 list append; > >> #N canvas 203 22 687 744 simplify 0; > >> #X obj 144 28 inlet; > >> #X obj 198 155 list length; > >> #X obj 145 132 t l l; > >> #X obj 165 214 spigot; > >> #X obj 51 239 spigot; > >> #X obj 84 213 == 1; > >> #X obj 205 275 list split 2; > >> #X obj 98 423 pack f f; > >> #X obj 272 371 list split 1; > >> #X obj 237 340 list; > >> #X obj 198 188 > 1; > >> #X obj 98 377 expr $f2*$f1+1 \; $f1; > >> #X obj 305 513 list append; > >> #X obj 305 541 expr $f1*$f2+$f3 \; $f2; > >> #X obj 307 589 pack f f; > >> #X obj 229 423 t b l; > >> #X obj 226 631 list; > >> #X obj 97 448 t l l; > >> #X obj 102 687 outlet; > >> #X text 206 80 converts the continued fraction form into a simple > fraction > >> ; > >> #X connect 0 0 2 0; > >> #X connect 1 0 5 0; > >> #X connect 1 0 10 0; > >> #X connect 2 0 3 0; > >> #X connect 2 0 4 0; > >> #X connect 2 1 1 0; > >> #X connect 3 0 6 0; > >> #X connect 4 0 18 0; > >> #X connect 5 0 4 1; > >> #X connect 6 0 11 0; > >> #X connect 6 1 9 1; > >> #X connect 7 0 17 0; > >> #X connect 8 0 12 0; > >> #X connect 8 1 9 1; > >> #X connect 8 2 16 0; > >> #X connect 9 0 8 0; > >> #X connect 10 0 3 1; > >> #X connect 11 0 7 0; > >> #X connect 11 1 7 1; > >> #X connect 12 0 13 0; > >> #X connect 13 0 14 0; > >> #X connect 13 1 14 1; > >> #X connect 14 0 15 0; > >> #X connect 15 0 9 0; > >> #X connect 15 1 16 1; > >> #X connect 15 1 12 1; > >> #X connect 16 0 18 0; > >> #X connect 17 0 15 0; > >> #X connect 17 1 12 1; > >> #X restore 478 385 pd simplify; > >> #X obj 325 713 outlet; > >> #X obj 368 630 list; > >> #X obj 479 411 t l l; > >> #X obj 596 577 sel 1; > >> #X obj 281 348 spigot; > >> #X msg 336 349 0; > >> #X obj 281 372 t f b; > >> #X obj 505 438 list split 1; > >> #X obj 535 469 route bang; > >> #X msg 333 382 1; > >> #X text 41 573 This is just here for debugging; > >> #X obj 634 406 loadbang; > >> #X obj 634 427 f \$1; > >> #X text 612 683 .mmb; > >> #X text 638 625 TODO: implement decrementing rules; > >> #X obj 102 674 prepend set; > >> #X obj 300 210 expr if($f1<0 \, int($f1-1) \, int($f1)) \; $f1; > >> #X obj 310 268 expr $f2-$f1 \; $f1; > >> #X text 533 211 floor; > >> #X obj 628 36 inlet; > >> #X obj 628 123 max 1; > >> #X obj 596 556 > 1000; > >> #X obj 298 100 t b b f b; > >> #N canvas 0 22 450 300 test.if.integer 0; > >> #X obj 206 117 expr int($f1)==$f1; > >> #X obj 151 28 inlet; > >> #X obj 151 64 t f f; > >> #X obj 129 186 spigot; > >> #X obj 179 186 spigot; > >> #X obj 164 160 != 1; > >> #X obj 129 242 outlet; > >> #X obj 179 242 outlet; > >> #X msg 179 214 \$1 1; > >> #X connect 0 0 4 1; > >> #X connect 0 0 5 0; > >> #X connect 1 0 2 0; > >> #X connect 2 0 3 0; > >> #X connect 2 0 4 0; > >> #X connect 2 1 0 0; > >> #X connect 3 0 6 0; > >> #X connect 4 0 8 0; > >> #X connect 5 0 3 1; > >> #X connect 8 0 7 0; > >> #X restore 298 76 pd test.if.integer; > >> #X obj 403 111 s \$0-to.outlet; > >> #X obj 395 671 r \$0-to.outlet; > >> #X msg 101 698; > >> #X obj 634 452 max 1; > >> #X obj 306 157 until; > >> #X obj 335 134 r \$0-stop.until; > >> #X obj 306 183 f; > >> #X obj 127 483 s \$0-stop.until; > >> #X obj 595 604 s \$0-stop.until; > >> #X connect 0 0 30 0; > >> #X connect 1 0 5 1; > >> #X connect 2 0 22 0; > >> #X connect 3 0 8 0; > >> #X connect 3 0 38 0; > >> #X connect 3 1 4 0; > >> #X connect 4 0 23 0; > >> #X connect 5 0 1 0; > >> #X connect 5 0 2 1; > >> #X connect 5 0 6 0; > >> #X connect 6 0 9 0; > >> #X connect 8 0 7 0; > >> #X connect 9 0 8 1; > >> #X connect 9 1 14 0; > >> #X connect 10 0 8 0; > >> #X connect 10 0 39 0; > >> #X connect 10 1 16 0; > >> #X connect 11 0 13 0; > >> #X connect 12 0 11 1; > >> #X connect 13 0 3 0; > >> #X connect 13 1 12 0; > >> #X connect 14 1 15 0; > >> #X connect 15 0 16 0; > >> #X connect 15 1 28 0; > >> #X connect 16 0 11 1; > >> #X connect 18 0 19 0; > >> #X connect 19 0 34 0; > >> #X connect 22 0 33 0; > >> #X connect 23 0 24 0; > >> #X connect 23 1 24 1; > >> #X connect 24 0 11 0; > >> #X connect 24 1 5 0; > >> #X connect 26 0 27 0; > >> #X connect 27 0 10 1; > >> #X connect 28 0 10 0; > >> #X connect 29 0 2 0; > >> #X connect 29 1 35 0; > >> #X connect 29 2 37 1; > >> #X connect 29 3 5 1; > >> #X connect 29 3 8 1; > >> #X connect 30 0 29 0; > >> #X connect 30 1 31 0; > >> #X connect 32 0 7 0; > >> #X connect 34 0 28 1; > >> #X connect 35 0 37 0; > >> #X connect 36 0 35 1; > >> #X connect 37 0 23 0; > >> > >> > >> > >> > >> dec2frac.mmb-help.pd: > >> > >> #N canvas 431 22 944 500 10; > >> #X obj 25 12 cnv 15 400 35 empty empty dec2frac.mmb 20 12 0 14 -4160 > >> -203904 0; > >> #X obj 25 48 cnv 15 400 70 empty empty empty 20 12 0 14 -203904 -66577 > >> 0; > >> #X text 812 417 .mmb; > >> #X text 45 48 Converts a decimal number into its fractional form. The > >> accuracy is determined by the argument. Irrational numbers \, such > >> as pi \, don't have fractional representations. So you should make > >> the argument high enough for as accurate an approximation that suits > >> you.; > >> #X text 468 49 [dec2frac.mmb max_denominator]; > >> #X msg 71 172 3.14159; > >> #X msg 136 199 3.75; > >> #X msg 149 245 -0.625; > >> #X obj 113 338 unpack f f; > >> #X floatatom 113 364 0 0 0 0 - - -; > >> #X floatatom 170 384 0 0 0 0 - - -; > >> #X obj 131 423 /; > >> #X floatatom 131 450 0 0 0 0 - - -; > >> #X floatatom 223 252 5 0 0 0 - - -; > >> #X text 263 252 change the maximum denominator value; > >> #X text 194 333 outputs a list of <numerator> <denominator>; > >> #X text 487 69 arg1 <optional>: the maximum size of the denominator. > >> Higher values result in more accurate estimations \, but more > computation. > >> Default is 1000; > >> #X floatatom 48 255 0 0 0 0 - - -; > >> #X obj 113 296 dec2frac.mmb 1000; > >> #X text 526 305 This algorithm is based on best rational approximation > >> using continued fractions. It currently does not implement rules for > >> decrementing the last value of the continued fraction form \, so it > >> is not as accurate as it could be.; > >> #X connect 5 0 18 0; > >> #X connect 6 0 18 0; > >> #X connect 7 0 18 0; > >> #X connect 8 0 9 0; > >> #X connect 8 1 10 0; > >> #X connect 9 0 11 0; > >> #X connect 10 0 11 1; > >> #X connect 11 0 12 0; > >> #X connect 13 0 18 1; > >> #X connect 17 0 18 0; > >> #X connect 18 0 8 0; > >> > >> > >> > >> On Sat, Dec 17, 2011 at 1:34 PM, Alexandre Torres Porres > >> <porres(a)gmail.com> wrote: > >> > hi there, how do i get the attachments you're sending to the list? > >> > > >> > thanks > >> > >> > >> > >> -- > >> Mike Moser-Booth > >> mmoserbooth(a)gmail.com > > > > > > > > -- > Mike Moser-Booth > mmoserbooth(a)gmail.com >

4 9

New snapshot of pd-l2ork available -- feedback appreciated
by Ivica Ico Bukvic 09 Feb '12

09 Feb '12

Fellow pd enthusiasts and devs, Apart from a couple of fixes of bugs that surfaced after we implemented infinite undo last month, as of this evening pd-l2ork has added another important feature: moving gop-ed objects via tag. This means that even a 100000-point array will now be moved via gui with a single command with minimal changes to the core pd code, rather than redrawing the entire array every time the array is moved. Same goes for GOP objects and scalars. Needless to mention, this is the first time that my netbook allows me to move large arrays on screen as if they were simple objects :-) If interested, check out the git at https://github.com/pd-l2ork x86-64 and i386 builds coming up soon... I am uploading 64-bit builds as I type this, i386 should be up sometime tomorrow. In the meantime you can search older builds via L2Ork's website at http://l2ork.music.vt.edu/main/?page_id=56... Enjoy! Best wishes, -- Ivica Ico Bukvic, D.M.A Composition, Music Technology Director, DISIS Interactive Sound& Intermedia Studio Director, L2Ork Linux Laptop Orchestra Assistant Director, CCTAD Virginia Tech Department of Music Blacksburg, VA 24061-0240 (540) 231-6139 (540) 231-5034 (fax) disis.music.vt.edu l2ork.music.vt.edu ico.bukvic.net

5 6

OT: faster than Fourier transform
by Jonathan Wilkes 07 Feb '12

07 Feb '12

This looks interesting: http://web.mit.edu/newsoffice/2012/faster-fourier-transforms-0118.html -Jonathan

7 11

real-time tuning patch or object ?
by Фывапр Олджэвич 02 Feb '12

02 Feb '12

Hi ! Did anyone try to do real-time tune-corrector (like Melodyne or autotune) in PD ? I really wanted to work with differently tuned recorded peoples words in realtime.. i mean being able to correct it via midi-keyboard in real-time, like vocoder.. But vocoder seems to be too synthetic in sound. And simple pitch-shifting is also sounds bad and is heavy. any advice ? Thank you !!

4 3

Pd-extended 0.43 tests builds usable again
by Hans-Christoph Steiner 01 Feb '12

01 Feb '12

On the road to getting a release out, I've recently done some work making some GUI stuff run stably (using apps like XYZee, for example), and I've included Miller's GOP fixes. Give it a whirl and report back how it works for you: http://autobuild.puredata.info/auto-build/latest/ .hc ---------------------------------------------------------------------------- "It is convenient to imagine a power beyond us because that means we don't have to examine our own lives.", from "The Idols of Environmentalism", by Curtis White

8 29

[expr $f1 if...] bug?
by Jonghyun Kim 01 Feb '12

01 Feb '12

Dear List, I found a bug: My system: 0.43.1-extended-20111218 Ubuntu 11.04 qjackctl 0.3.7 metronome | | [ expr $f1; if ($f1 == 1, 1, 0); if ($f1 == 5, 2, 0); if ($f1 == 9, 3, 0); if ($f1 == 13, 4, 0); if ($f1 == 17, 5, 0); if ($f1 == 21, 6, 0); if ($f1 == 25, 7, 0); if ($f1 == 29, 8, 0); if ($f1 == 33, 9, 0); if ($f1 == 37, 10, 0); if ($f1 == 41, 11, 0); if ($f1 == 45, 12, 0); ] When I put this expressions, pd shut down... The expr receive counts(like 1,2,3,4...and so on) from metronome. What's the problem? Thanks, Jong

6 9

IPPASS finds missing fundamentals
by katja 01 Feb '12

01 Feb '12

Hello, This is for math freaks. Last week I invented a function to help detect period length in the case of missing fundamental. Well, invented? I am not a professional math person, and it may be in use since long, without me having heard about it. Anyhow I tagged it IPPASS, Instantaneous Power of Phase-Aligned Signal Segment. The function describes the squared amplitude modulation of an analytic signal segment in which phases are aligned via the amplitude spectrum. It happens to be the case that these modulations have single periodical peaks exactly in the cases where the autocorrelation function gets messed up by a dominant second harmonic. IPPASS could be useful in time domain pitch processing, I'm planning to try that shortly. IPPASS is illustrated with plots and Pd demo patch here: http://www.katjaas.nl/ippass/ippass.html A couple of years ago, when figuring out an attack detector, I was so much plagued by periodic amplitude modulations that they were still fresh in mind when I delved into the matter of period detection recently. That's how I got the idea to exploit the modulations this time. Does anyone know if this function or something similar is in use for pitch tracking or another field of signal analysis? And another question: does anyone have ideas to improve stability and accuracy of a signal segment with it's phases forced to zero? It suffers from the usual boundary effects, which must be reduced to a practical minimum. Katja

1 0

IEM Matrix
by Pierre Massat 31 Jan '12

31 Jan '12

Dear List, I'm having trouble creating the [mtx_*~] object from the iemmatrix library. I added this library to both Path and Startup in Pd but when i put the object in a patch and quit Pd says it can't create it when i reopen the patch. Is this normal?.. Pierre

2 2

Re: [PD] building Pd-ext/GEM for Windows
by rolf meesters 31 Jan '12

31 Jan '12

> > > LINK : fatal error LNK1181: cannot open input > file'Files\pd\bin;\msvc\Build;\win32_vcpp\Build;\objs /DLL /MANIFEST > /MANIFESTFILE:d:\Gem-do-2\build\win-vs2008\\Debug\Gem.dll.intermediate.manifest > /MANIFESTUAC:level='asInvoker'.obj' > > > > my building environment not right? > > > dunno, but the "Files\pd" indicates that "C:\Program Files\pd" was split > at the space. > > anyhow, would you mind building "Release"? that's the configuration i > use when building (and which i used to build 3 days ago) > > sure. by Release you mean the 93.3.(?) i took it from the Gem page. the date is 20111110. upgraded the vs2003 to 2008 build only GEM: "LNK1104 cannot open file "libjpeg.lib" probably this should be in Gemlibs which is not part of the package. the notes i found about Gemlibs did not point to a 'solution'. a link on the page: "what libraries does GEM use?" to simtel.net takes forever to respond at a download request. sorry if it starts to be annoying, but i really would appreciate a good ending of this efforts. rolf

3 4

Strange segfault with soundfiler Pd-0.43.1-1 debian wheezy
by Lorenzo Sutton 31 Jan '12

31 Jan '12

On my laptop with Pd-0.43.1-1 in debian wheezy I get a segfault when using soundfiler with openpanel like in the simple example attached. Same happens if I send the file directly with a message [ read -resize my_file.wav file0 ( I tried removing -resize and with other files and get the same problem. This doesn't happen on another machine with exactly the same version.. any ideas? Run with -d 3 apart from all the mouse messages and the Pd watchdog I only get segmentation fault And doing a backtrace with gdb (not sure how useful really): #0 0x081097c9 in open_soundfile_via_fd () #1 0x08109cf2 in ?? () #2 0x080b2131 in pd_typedmess () #3 0x080b3fdf in outlet_anything () #4 0x080b1fad in pd_typedmess () #5 0x080bc861 in binbuf_eval () #6 0x08066ffa in ?? () #7 0x0809589d in canvas_doclick () #8 0x08096427 in canvas_mouse () #9 0x080b225a in pd_typedmess () #10 0x080b1fad in pd_typedmess () #11 0x080bc861 in binbuf_eval () #12 0x080c517f in socketreceiver_read () #13 0x080c425b in ?? () #14 0x080c0b55 in m_mainloop () #15 0x0805b2eb in main () Anyone experiencing this. Any idea on how to debug it? Lorenzo.

3 6

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Pd-list January 2012