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#N canvas 1 53 560 517 10;
#X declare -lib windowing;
#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 8 12 0 13
-228856 -1 0;
#X obj 3 299 cnv 3 550 3 empty \$0-pddp.cnv.outlets outlet 8 12 0 13
-228856 -1 0;
#X obj 3 359 cnv 3 550 3 empty \$0-pddp.cnv.more_info more_info 8 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 (subpatch) 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
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#N canvas 288 245 494 344 META 0;
#X text 12 125 HELP_PATCH_AUTHORS "pd meta" information added by Jonathan
Wilkes for Pd version 0.42.;
#X text 12 25 LICENSE GPL v2;
#X text 12 5 KEYWORDS signal;
#X text 12 65 INLET_0 signal;
#X text 12 85 OUTLET_0 signal;
#X text 12 105 AUTHOR Joe Sarlo;
#X text 12 45 DESCRIPTION generate a lanczos window for each dsp block
;
#X restore 505 480 pd META;
#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;
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