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
90 lines
2.9 KiB
Text
90 lines
2.9 KiB
Text
#N canvas 247 4 688 708 12;
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#X floatatom 38 264 7 0 0 0 - - -;
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#N canvas 0 0 450 300 (subpatch) 0;
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#X array \$0-real 64 float 2;
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#X coords 0 64 64 -64 256 200 1;
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#X restore 423 184 graph;
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#X floatatom 38 168 5 0 32 0 - - -;
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#X obj 78 240 samplerate~;
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#X obj 38 215 t f b;
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#X obj 38 240 *;
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#X obj 80 568 metro 250;
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#X obj 38 637 tabwrite~ \$0-real;
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#X obj 67 614 tabwrite~ \$0-imaginary;
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#X obj 38 384 osc~;
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#N canvas 0 0 450 300 (subpatch) 0;
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#X array \$0-imaginary 64 float 2;
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#X coords 0 64 64 -64 256 200 1;
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#X restore 423 417 graph;
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#X obj 69 360 f;
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#X floatatom 91 316 3 0 100 0 - - -;
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#X obj 91 337 / 100;
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#X obj 38 191 / 64;
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#X text 595 165 real part;
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#X text 550 398 imaginary part;
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#X obj 80 545 loadbang;
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#X text 94 166 <- frequency;
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#X text 133 182 (as multiple;
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#X text 135 198 of SR/64 \, the;
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#X text 133 215 fundamental);
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#X text 170 345 of a cycle;
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#X text 431 638 updated for PD version 0.39;
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#X obj 89 590 s \$0-snap;
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#X obj 69 286 r \$0-snap;
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#X text 127 315 <- phase in;
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#X text 161 331 hundredths;
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#X text 113 264 <- frequency \, Hz.;
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#X text 87 415 given the real and imaginary part;
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#X text 88 431 of a complex-valued signal. Here;
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#X text 87 447 the imaginary part is zero (the;
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#X text 86 400 fft~ computes the Fourier transform \,;
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#X text 186 541 real and imaginary;
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#X text 186 557 outputs are graphed;
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#X text 185 574 separately.;
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#X text 86 464 input is real-valued). The output;
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#X text 85 482 is a (real \, imaginary) pair for each;
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#X text 86 500 frequency from 0 to 63 (in units of;
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#X text 87 520 SR/64).;
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#X text 145 -36 The "fft~" object has separate inlets for the real
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and imaginary parts of a complex-valued signal and outputs its Fourier
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transform \, again using separate outlets for the real and imaginary
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part. The transform is done on one block of samples (here the block
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size is 64 \, Pd's default.) The outputs give the complex amplitudes
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of the harmonics of the input signal \, from DC up. The harmonics are
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tuned to the fundamental frequency of the analysis \, 1/64th of the
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sample rate. If the frequency (in harmonics) is an integer \, the result
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is two harmonics symmetric about the Nyquist frequency. Fractional
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frequencies spill across harmonics. Changing the initial phase rotates
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energy from real to imaginary and back.;
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#X text 26 -24 ANALYSIS;
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#X text 27 -42 FOURIER;
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#X msg 38 79 0;
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#X msg 38 100 10;
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#X msg 38 121 10.5;
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#X text 159 283 bang-on-snapshot;
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#X text 157 297 from below;
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#X text 100 363 sync phase with snapshots;
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#X obj 37 423 fft~;
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#X msg 274 614 \; pd dsp 1;
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