e85d191b46
- merge v0.01 --> Añadido fileselector - Añadidas fuentes de Gem y Pure Data - pix2jpg incluído en Gem. Archivos de construcción de Gem modificados. - Añadido fichero ompiling.txt con instrucciones de compilación
112 lines
3.9 KiB
Text
112 lines
3.9 KiB
Text
#N canvas 41 39 854 640 12;
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#N canvas 0 0 450 300 graph2 0;
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#X array \$0-tab1 100 float 1;
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#A 0 0.960563 0.960996 0.962862 0.970269 0.977017 0.985214 1.00122
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1.02249 1.05453 1.10332 1.18193 1.31034 1.5315 1.91468 2.37977 2.37001
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1.92679 1.57244 1.36114 1.23298 1.15262 1.09943 1.06243 1.03636 1.0162
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#X coords 0 5 99 0 200 300 1;
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#X restore 616 193 graph;
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-1;
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#X floatatom 49 448 3 0 0 0 - - -;
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#X text 671 499 frequency;
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#N canvas 876 177 375 255 startup 0;
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#X obj 22 24 loadbang;
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-1;
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#X obj 22 67 f \$0;
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#X text 35 195 This subpatch loads initial;
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#X text 31 219 values in number boxes.;
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#X msg 22 91 \; \$1-pole 60 \; \$1-zero 20;
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#X connect 0 0 1 0;
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#X connect 1 0 2 0;
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#X connect 2 0 5 0;
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#X restore 328 602 pd startup;
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#X floatatom 276 368 3 0 99 0 - #0-pole -;
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#X text 554 481 gain=0;
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#X obj 41 600 filter-graph2 \$0-tab1;
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#X obj 41 425 filter-graph1 100 22050;
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#X text 791 495 22050;
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#X obj 276 391 / 100;
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#X floatatom 330 367 4 0 100 0 - #0-zero -;
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#X obj 330 390 / 100;
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#X text 594 182 5;
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#X text 611 492 0;
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#X text 599 423 1;
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#X text 596 596 updated for Pd version 0.39;
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#X text 183 10 PEAKING FILTER;
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#X floatatom 406 366 3 0 180 0 - #0-pole -;
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#X text 415 328 angle;
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#X text 399 344 (degrees);
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#X obj 460 435 sin;
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#X obj 405 436 cos;
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#X obj 405 387 * 3.14159;
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#X obj 405 411 / 180;
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#X obj 241 515 *;
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#X obj 405 460 t b f;
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#X obj 460 460 t b f;
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#X obj 209 543 cpole~;
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#X obj 226 574 czero~;
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#X text 266 332 pole and zero;
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#X text 284 347 radii (%);
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#X obj 277 516 *;
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#X obj 314 542 *;
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#X obj 349 542 *;
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#X text 21 34 To get a peaking filter \, start with a shelving filter
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but rotate the pole and zero to the point on the unit circle you want
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to amplify or attenuate. The rpole~ and rzero~ filters are replaced
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with their complex-valued siblings \, cpole~ and czero~. These filters
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take a (real \, imaginary) pair to filter and another (real-imaginary)
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pair to specify the pole or zero. As for rpole~ and rzero~ \, the coefficients
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may change at audio rate.;
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#X text 22 162 The outputs of cpole~ and czero~ are also in the form
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of a (real-imaginary) pair. Both outlets of cpole~ are connected to
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czero~ in this example \, but then since we want a real-valued filter
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\, we only take the real part of the (complex) output of czero~.;
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#X text 23 246 Here the pole and zero radii (p and q) control the center-frequency
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gain by the formula (1-q)/(1-p). The closer to 1 the radii \, the narrower
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the band affected. The non-peak gain \, (1+q)/(1+p) \, is close to
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1 as long as p and q are at least 50% or so.;
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