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Diffstat (limited to 'cosine~-help.pd')
| -rw-r--r-- | cosine~-help.pd | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/cosine~-help.pd b/cosine~-help.pd new file mode 100644 index 0000000..50bb1c9 --- /dev/null +++ b/cosine~-help.pd @@ -0,0 +1,53 @@ +#N canvas 230 69 567 494 10; +#X obj 4 454 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 cosine~ 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 floatatom 170 104 5 0 0 0 - - -; +#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 102 363 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 text 103 377 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 obj 170 122 sig~ 1; +#X obj 170 143 cosine~; +#N canvas 0 0 450 300 graph5 0; +#X array \$0-cosine 64 float 0; +#X coords 0 1 63 -1 200 140 1; +#X restore 301 55 graph; +#X text 169 52 cos(pi*x/2); +#X text 15 6 description: generates a cosine window for each dsp block +; +#X obj 435 6 pddp/pddplink http://wiki.puredata.info/en/cosine~ -text +pdpedia: cosine~; +#X obj 170 169 tabsend~ \$0-cosine; +#X obj 72 319 cnv 17 3 30 empty \$0-pddp.cnv.let.0 0 5 9 0 16 -228856 +-162280 0; +#X text 102 258 SIGNAL: the height (amplitude) of the window is controled +by the signal on its inlet.; +#X text 103 317 SIGNAL: a cosine (otherwise known as a sine - actually +it's half a sine) window with size=dsp blocksize; +#X connect 7 0 16 0; +#X connect 8 0 7 0; +#X connect 9 0 8 0; +#X connect 10 0 9 0; +#X connect 16 0 17 0; +#X connect 17 0 22 0; |