[PD-cvs] externals/windowing bartlett~-help.pd, NONE, 1.1 gaussian~-help.pd, NONE, 1.1 kaiser~-help.pd, NONE, 1.1 lanczos~-help.pd, NONE, 1.1 welch~-help.pd, NONE, 1.1 blackman~-help.pd, 1.1, 1.2 hanning~-help.pd, 1.1, 1.2

Ed Kelly edkelly at users.sourceforge.net
Thu Dec 13 08:06:54 CET 2007


Update of /cvsroot/pure-data/externals/windowing
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv7349/windowing

Modified Files:
	blackman~-help.pd hanning~-help.pd 
Added Files:
	bartlett~-help.pd gaussian~-help.pd kaiser~-help.pd 
	lanczos~-help.pd welch~-help.pd 
Log Message:
Help files for windowing are complete! So now we have easy block-sized 
windows. Hurrah!  Ek


--- NEW FILE: kaiser~-help.pd ---
#N canvas 256 141 557 517 10;
#X obj 4 479 cnv 15 550 20 empty \$0-pddp.cnv.footer empty 20 12 0
14 -228856 -66577 0;
#X obj 4 -17 cnv 15 550 40 empty \$0-pddp.cnv.header kaiser~ 3 12 0
18 -204280 -1 0;
#X obj 3 239 cnv 3 550 3 empty \$0-pddp.cnv.inlets inlets 15 12 0 13
-228856 -1 0;
#X obj 3 319 cnv 3 550 3 empty \$0-pddp.cnv.outlets outlet 15 12 0
13 -228856 -1 0;
#X obj 3 359 cnv 3 550 3 empty \$0-pddp.cnv.more_info more_info 15
12 0 13 -228856 -1 0;
#X obj 72 259 cnv 17 3 30 empty \$0-pddp.cnv.let.0 0 5 9 0 16 -228856
-162280 0;
#X text 168 40 formula:;
#X obj 97 126 hsl 71 15 -1 1 0 0 empty empty empty -2 -6 0 10 -262144
-1 -1 7000 1;
#X msg 94 106 1;
#X obj 94 86 loadbang;
#X obj 102 365 pddp/pddplink http://en.wikipedia.org/wiki/Window_function
-text wikipedia: window functions;
#X obj 438 -14 import windowing;
#X msg 36 154 \; pd dsp 1;
#X text 21 125 height --->;
#X obj 127 149 sig~ 1;
#N canvas 0 0 450 300 graph3 0;
#X array \$0-kaiser 64 float 0;
#X coords 0 1 63 -1 200 140 1;
#X restore 326 65 graph;
#X text 103 396 Windowing functions are used with FFTs. These transform
the signal block-by-block into a spectral representation whose resolution
in both the frequency and time domains are proportional to their size
(as a power-of-two in PD). The different windows have different characteristics
in terms of stopband attenuation and noise bandwidth.;
#X text 102 258 SIGNAL: the height (amplitude) of the window is controlled
by the signal on its inlet.;
#X obj 197 126 hsl 81 15 1 240 1 0 empty empty empty -2 -6 0 10 -262144
-1 -1 3361 1;
#X floatatom 192 145 5 0 0 0 - - -;
#X obj 127 172 kaiser~;
#X obj 127 198 tabsend~ \$0-kaiser;
#X obj 435 6 pddp/pddplink http://wiki.puredata.info/en/kaiser~ -text
pdpedia: kaiser~;
#X text 169 84 modified Bessel function;
#X text 169 70 where Io is 0th order;
#X text 168 55 Io(a*sqrt(1-x^2))/Io(a);
#X text 103 327 SIGNAL: a kaiser (exponential decay) window with size=dsp
blocksize;
#X msg 121 106 10;
#X obj 102 379 pddp/pddplink http://en.wikipedia.org/wiki/Kaiser_window
-text wikipedia: kaiser window;
#X text 102 284 FLOAT: the narrowness of the kaiser window is controlled
by floats in the inlet;
#X text 15 6 description: generates a kaiser window for each dsp block
;
#X connect 7 0 14 0;
#X connect 8 0 7 0;
#X connect 9 0 8 0;
#X connect 9 0 27 0;
#X connect 14 0 20 0;
#X connect 18 0 19 0;
#X connect 19 0 20 0;
#X connect 20 0 21 0;
#X connect 27 0 18 0;

--- NEW FILE: welch~-help.pd ---
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#X obj 4 479 cnv 15 550 20 empty \$0-pddp.cnv.footer empty 20 12 0
14 -228856 -66577 0;
#X obj 4 -17 cnv 15 550 40 empty \$0-pddp.cnv.header welch~ 3 12 0
18 -204280 -1 0;
#X obj 3 239 cnv 3 550 3 empty \$0-pddp.cnv.inlets inlets 15 12 0 13
-228856 -1 0;
#X obj 3 299 cnv 3 550 3 empty \$0-pddp.cnv.outlets outlet 15 12 0
13 -228856 -1 0;
#X obj 3 359 cnv 3 550 3 empty \$0-pddp.cnv.more_info more_info 15
12 0 13 -228856 -1 0;
#X obj 72 259 cnv 17 3 30 empty \$0-pddp.cnv.let.0 0 5 9 0 16 -228856
-162280 0;
#X text 168 40 formula:;
#X obj 97 86 hsl 71 15 -1 1 0 0 empty empty empty -2 -6 0 10 -262144
-1 -1 7000 1;
#X msg 94 66 1;
#X obj 94 46 loadbang;
#X obj 102 365 pddp/pddplink http://en.wikipedia.org/wiki/Window_function
-text wikipedia: window functions;
#X obj 438 -14 import windowing;
#X msg 36 154 \; pd dsp 1;
#X text 21 85 height --->;
#X obj 127 109 sig~ 1;
#N canvas 0 0 450 300 graph3 0;
#X array \$0-welch 64 float 0;
#X coords 0 1 63 -1 200 140 1;
#X restore 326 65 graph;
#X text 102 406 Windowing functions are used with FFTs. These transform
the signal block-by-block into a spectral representation whose resolution
in both the frequency and time domains are proportional to their size
(as a power-of-two in PD). The different windows have different characteristics
in terms of stopband attenuation and noise bandwidth.;
#X text 102 258 SIGNAL: the height (amplitude) of the window is controlled
by the signal on its inlet.;
#X obj 127 158 tabsend~ \$0-welch;
#X obj 127 132 welch~;
#X text 169 53 1-abs(x);
#X obj 102 379 pddp/pddplink http://en.wikipedia.org/wiki/Welch_method
-text wikipedia: Welch's method;
#X obj 102 392 pddp/pddplink http://mathworld.wolfram.com/WelchApodizationFunction.html
-text mathworld link;
#X text 103 317 SIGNAL: a welch window with size=dsp blocksize;
#X text 15 6 description: generates a welch window for each dsp block
;
#X obj 435 6 pddp/pddplink http://wiki.puredata.info/en/welch~ -text
pdpedia: welch~;
#X obj 73 319 cnv 17 3 30 empty \$0-pddp.cnv.let.0 0 5 9 0 16 -228856
-162280 0;
#X connect 7 0 14 0;
#X connect 8 0 7 0;
#X connect 9 0 8 0;
#X connect 14 0 19 0;
#X connect 19 0 18 0;

--- NEW FILE: lanczos~-help.pd ---
#N canvas 256 141 560 517 10;
#X obj 4 479 cnv 15 550 20 empty \$0-pddp.cnv.footer empty 20 12 0
14 -228856 -66577 0;
#X obj 4 -17 cnv 15 550 40 empty \$0-pddp.cnv.header lanczos~ 3 12
0 18 -204280 -1 0;
#X obj 3 239 cnv 3 550 3 empty \$0-pddp.cnv.inlets inlets 15 12 0 13
-228856 -1 0;
#X obj 3 299 cnv 3 550 3 empty \$0-pddp.cnv.outlets outlet 15 12 0
13 -228856 -1 0;
#X obj 3 359 cnv 3 550 3 empty \$0-pddp.cnv.more_info more_info 15
12 0 13 -228856 -1 0;
#X obj 72 259 cnv 17 3 30 empty \$0-pddp.cnv.let.0 0 5 9 0 16 -228856
-162280 0;
#X text 168 40 formula:;
#X obj 97 86 hsl 71 15 -1 1 0 0 empty empty empty -2 -6 0 10 -262144
-1 -1 7000 1;
#X msg 94 66 1;
#X obj 94 46 loadbang;
#X obj 102 365 pddp/pddplink http://en.wikipedia.org/wiki/Window_function
-text wikipedia: window functions;
#X obj 438 -14 import windowing;
#X msg 36 154 \; pd dsp 1;
#X text 21 85 height --->;
#X obj 127 109 sig~ 1;
#N canvas 0 0 450 300 graph3 0;
#X array \$0-lanczos 64 float 0;
#X coords 0 1 63 -1 200 140 1;
#X restore 326 65 graph;
#X text 102 380 Windowing functions are used with FFTs. These transform
the signal block-by-block into a spectral representation whose resolution
in both the frequency and time domains are proportional to their size
(as a power-of-two in PD). The different windows have different characteristics
in terms of stopband attenuation and noise bandwidth.;
#X text 102 258 SIGNAL: the height (amplitude) of the window is controlled
by the signal on its inlet.;
#X text 169 52 sin(pi*x)/(pi*x);
#X text 15 6 description: generates a lanczos window for each dsp block
;
#X obj 435 6 pddp/pddplink http://wiki.puredata.info/en/lanczos~ -text
pdpedia: lanczos~;
#X obj 127 158 tabsend~ \$0-lanczos;
#X text 103 317 SIGNAL: a lanczos (sinc) window with size=dsp blocksize
;
#X obj 127 132 lanczos~;
#X obj 72 319 cnv 17 3 30 empty \$0-pddp.cnv.let.0 0 5 9 0 16 -228856
-162280 0;
#X connect 7 0 14 0;
#X connect 8 0 7 0;
#X connect 9 0 8 0;
#X connect 14 0 23 0;
#X connect 23 0 21 0;

--- NEW FILE: bartlett~-help.pd ---
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#X obj 4 479 cnv 15 550 20 empty \$0-pddp.cnv.footer empty 20 12 0
14 -228856 -66577 0;
#X obj 4 -17 cnv 15 550 40 empty \$0-pddp.cnv.header bartlett~ 3 12
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#X obj 3 299 cnv 3 550 3 empty \$0-pddp.cnv.outlets outlet 15 12 0
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#X obj 3 359 cnv 3 550 3 empty \$0-pddp.cnv.more_info more_info 15
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#X obj 72 259 cnv 17 3 30 empty \$0-pddp.cnv.let.0 0 5 9 0 16 -228856
-162280 0;
#X text 168 40 formula:;
#X obj 97 86 hsl 71 15 -1 1 0 0 empty empty empty -2 -6 0 10 -262144
-1 -1 7000 1;
#X msg 94 66 1;
#X obj 94 46 loadbang;
#X obj 102 365 pddp/pddplink http://en.wikipedia.org/wiki/Window_function
-text wikipedia: window functions;
#X obj 438 -14 import windowing;
#X msg 36 154 \; pd dsp 1;
#X text 21 85 height --->;
#X obj 127 109 sig~ 1;
#N canvas 0 0 450 300 graph3 0;
#X array \$0-bartlett 64 float 0;
#X coords 0 1 63 -1 200 140 1;
#X restore 326 65 graph;
#X text 102 394 Windowing functions are used with FFTs. These transform
the signal block-by-block into a spectral representation whose resolution
in both the frequency and time domains are proportional to their size
(as a power-of-two in PD). The different windows have different characteristics
in terms of stopband attenuation and noise bandwidth.;
#X text 102 258 SIGNAL: the height (amplitude) of the window is controlled
by the signal on its inlet.;
#X obj 127 158 tabsend~ \$0-bartlett;
#X obj 127 132 bartlett~;
#X text 169 53 1-x^2;
#X text 103 317 SIGNAL: a bartlett (triangle) window with size=dsp
blocksize;
#X obj 102 380 pddp/pddplink http://mathworld.wolfram.com/BartlettFunction.html
-text mathworld link;
#X obj 435 6 pddp/pddplink http://wiki.puredata.info/en/bartlett~ -text
pdpedia: bartlett~;
#X text 15 6 description: generates a bartlett window for each dsp
block;
#X obj 72 319 cnv 17 3 30 empty \$0-pddp.cnv.let.0 0 5 9 0 16 -228856
-162280 0;
#X connect 7 0 14 0;
#X connect 8 0 7 0;
#X connect 9 0 8 0;
#X connect 14 0 19 0;
#X connect 19 0 18 0;

Index: hanning~-help.pd
===================================================================
RCS file: /cvsroot/pure-data/externals/windowing/hanning~-help.pd,v
retrieving revision 1.1
retrieving revision 1.2
diff -C2 -d -r1.1 -r1.2
*** hanning~-help.pd	13 Dec 2007 05:58:24 -0000	1.1
--- hanning~-help.pd	13 Dec 2007 07:06:52 -0000	1.2
***************
*** 48,51 ****
--- 48,53 ----
  #X text 102 258 SIGNAL: the height (amplitude) of the window is controled
  by the signal on its inlet.;
+ #X obj 72 319 cnv 17 3 30 empty \$0-pddp.cnv.let.0 0 5 9 0 16 -228856
+ -162280 0;
  #X connect 6 0 25 0;
  #X connect 9 0 6 0;

Index: blackman~-help.pd
===================================================================
RCS file: /cvsroot/pure-data/externals/windowing/blackman~-help.pd,v
retrieving revision 1.1
retrieving revision 1.2
diff -C2 -d -r1.1 -r1.2
*** blackman~-help.pd	13 Dec 2007 05:58:24 -0000	1.1
--- blackman~-help.pd	13 Dec 2007 07:06:52 -0000	1.2
***************
*** 45,48 ****
--- 45,50 ----
  by the signal on its inlet.;
  #X obj 127 158 tabsend~ \$0-blackman;
+ #X obj 73 319 cnv 17 3 30 empty \$0-pddp.cnv.let.0 0 5 9 0 16 -228856
+ -162280 0;
  #X connect 7 0 15 0;
  #X connect 8 0 7 0;

--- NEW FILE: gaussian~-help.pd ---
#N canvas 256 141 559 517 10;
#X obj 4 479 cnv 15 550 20 empty \$0-pddp.cnv.footer empty 20 12 0
14 -228856 -66577 0;
#X obj 4 -17 cnv 15 550 40 empty \$0-pddp.cnv.header gaussian~ 3 12
0 18 -204280 -1 0;
#X obj 3 239 cnv 3 550 3 empty \$0-pddp.cnv.inlets inlets 15 12 0 13
-228856 -1 0;
#X obj 3 319 cnv 3 550 3 empty \$0-pddp.cnv.outlets outlet 15 12 0
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#X obj 3 359 cnv 3 550 3 empty \$0-pddp.cnv.more_info more_info 15
12 0 13 -228856 -1 0;
#X obj 72 259 cnv 17 3 30 empty \$0-pddp.cnv.let.0 0 5 9 0 16 -228856
-162280 0;
#X text 168 40 formula:;
#X obj 97 86 hsl 71 15 -1 1 0 0 empty empty empty -2 -6 0 10 -262144
-1 -1 7000 1;
#X msg 94 66 1;
#X obj 94 46 loadbang;
#X obj 102 365 pddp/pddplink http://en.wikipedia.org/wiki/Window_function
-text wikipedia: window functions;
#X obj 438 -14 import windowing;
#X msg 36 154 \; pd dsp 1;
#X text 21 85 height --->;
#X obj 127 109 sig~ 1;
#N canvas 0 0 450 300 graph3 0;
#X array \$0-gaussian 64 float 0;
#X coords 0 1 63 -1 200 140 1;
#X restore 326 65 graph;
#X text 103 405 Windowing functions are used with FFTs. These transform
the signal block-by-block into a spectral representation whose resolution
in both the frequency and time domains are proportional to their size
(as a power-of-two in PD). The different windows have different characteristics
in terms of stopband attenuation and noise bandwidth.;
#X text 102 258 SIGNAL: the height (amplitude) of the window is controlled
by the signal on its inlet.;
#X text 15 6 description: generates a gaussian window for each dsp
block;
#X obj 435 6 pddp/pddplink http://wiki.puredata.info/en/gaussian~ -text
pdpedia: gaussian~;
#X obj 127 132 gaussian~;
#X obj 127 158 tabsend~ \$0-gaussian;
#X text 103 327 SIGNAL: a gaussian window with size=dsp blocksize;
#X obj 197 86 hsl 71 15 0 2 0 0 empty empty empty -2 -6 0 10 -262144
-1 -1 1750 1;
#X floatatom 192 105 5 0 0 0 - - -;
#X msg 121 66 0.5;
#X text 102 284 FLOAT: the width of the gaussian distribution curve
is controlled by floats in the inlet;
#X text 169 54 2^(-(x/d)^2);
#X obj 102 378 pddp/pddplink http://en.wikipedia.org/wiki/Gaussian_function
-text wikipedia: gaussian function;
#X obj 102 392 pddp/pddplink http://mathworld.wolfram.com/GaussianFunction.html
-text mathworld link;
#X obj 73 326 cnv 17 3 30 empty \$0-pddp.cnv.let.0 0 5 9 0 16 -228856
-162280 0;
#X connect 7 0 14 0;
#X connect 8 0 7 0;
#X connect 9 0 8 0;
#X connect 9 0 25 0;
#X connect 14 0 20 0;
#X connect 20 0 21 0;
#X connect 23 0 24 0;
#X connect 24 0 20 0;
#X connect 25 0 23 0;





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