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
156 lines
4.2 KiB
Text
156 lines
4.2 KiB
Text
#N canvas 165 123 695 505 12;
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#X obj 94 247 *~;
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#X obj 109 223 line~;
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#X obj 18 179 cos~;
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#X obj 18 154 +~;
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#X obj 109 200 pack 0 50;
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#X floatatom 109 152 0 0 300 0 - - -;
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#X obj 109 176 / 100;
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#X obj 18 129 phasor~;
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#X obj 20 340 output~;
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#X obj 19 309 hip~;
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#X text 437 472 updated for Pd version 0.37;
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#N canvas 62 299 558 609 fft 0;
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#X obj 19 61 inlet~;
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#X obj 208 212 inlet;
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#X obj 29 92 rfft~;
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#X obj 29 125 *~;
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#X obj 60 125 *~;
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#X obj 29 155 sqrt~;
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#X obj 332 109 block~ 4096 1;
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#X obj 29 181 biquad~ 0 0 0 0 1;
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#X text 93 93 Fourier series;
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#X text 98 146 magnitude;
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#X text 96 131 calculate;
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#X text 21 3 This subpatch computes the spectrum of the incoming signal
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with a (rectangular windowed) FFT. FFTs aren't properly introduced
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until much later.;
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#X text 83 61 signal to analyze;
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#X text 193 164 delay two samples;
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#X text 191 182 for better graphing;
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#X obj 16 425 samplerate~;
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#X obj 16 402 bng 18 250 50 0 empty empty empty 0 -6 0 8 -262144 -1
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-1;
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#X obj 16 448 / 256;
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#X obj 16 378 loadbang;
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#X obj 72 494 s fundamental;
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#X text 14 319 At load time \, calculate a good choice of fundamental
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frequency for showing spectra: the 16th bin in a 4096-point spectrum
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\, so SR*16/4096 or SR/256.;
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#X obj 220 257 metro 500;
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#X obj 220 234 inlet;
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#X text 273 232 toggle to graph repeatedly;
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#X text 262 212 bang to graph once;
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#X obj 16 494 t b f;
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#X obj 19 295 tabwrite~ E10-spectrum;
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#X obj 208 295 tabwrite~ E10-spectrum;
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#X text 72 536 set carrier multiplier and modulation multipliers after
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fundamental;
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#X msg 16 516 \; cm 8 \; m1 2 \; m2 3;
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#X connect 0 0 2 0;
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#X connect 0 0 27 0;
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#X connect 1 0 27 0;
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#X connect 1 0 28 0;
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#X connect 2 0 3 0;
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#X connect 2 0 3 1;
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#X connect 2 1 4 0;
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#X connect 2 1 4 1;
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#X connect 26 0 30 0;
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#X connect 26 1 20 0;
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#X restore 65 311 pd fft;
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-1;
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1;
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#X text 146 310 <-- repeatedly;
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#X text 147 290 <-- graph once;
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#N canvas 0 0 450 300 graph1 0;
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#X array E10-spectrum 259 float 0;
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#X coords 0 2100 258 -20 259 130 1;
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#X restore 396 122 graph;
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#X text 426 253 2;
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#X text 457 253 4;
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#X text 396 253 0;
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#X text 434 268 -- partial number --;
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#X text 490 104 SPECTRUM;
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#X text 656 238 0;
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#X text 657 120 0.5;
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#X obj 93 128 osc~;
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#X obj 267 79 r fundamental;
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#X text 489 253 6;
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#X text 522 253 8;
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#X text 550 253 10;
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#X text 582 253 12;
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#X text 614 253 14;
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#X floatatom 18 58 3 0 15 0 - - -;
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#X obj 18 105 *;
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#X obj 18 33 r cm;
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#X text 43 3 SPECTRUM OF COMPLEX PHASE MODULATION;
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#X text 23 73 carrier;
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#X obj 93 107 *;
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#X floatatom 93 60 3 0 15 0 - - -;
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#X text 99 74 mod 1;
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#X obj 93 35 r m1;
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#X text 138 154 index1;
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#X obj 197 249 *~;
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#X obj 212 225 line~;
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#X obj 212 202 pack 0 50;
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#X floatatom 212 154 0 0 300 0 - - -;
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#X obj 212 178 / 100;
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#X obj 196 130 osc~;
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#X obj 196 109 *;
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#X floatatom 196 62 3 0 15 0 - - -;
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#X text 202 76 mod 2;
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#X text 246 154 index2;
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#X obj 196 37 r m2;
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#X text 126 349 Now we introduce a second modulator oscillator. The
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carrier is on the 8th harmonic and the two modulators are at 2 and
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3 times the fundamental. When either index of modulation is zero \,
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changing the other index gives the familiar 2-operator FM result. But
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if index2 is nonzero (try around 10 \, for example) then sliding index1
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upward from 0 introduces sidebands around each of the sidebands.;
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#X connect 0 0 3 1;
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#X connect 1 0 0 1;
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#X connect 2 0 9 0;
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#X connect 2 0 11 0;
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#X connect 3 0 2 0;
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#X connect 4 0 1 0;
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#X connect 7 0 3 0;
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