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
119 lines
3.6 KiB
Text
119 lines
3.6 KiB
Text
#N canvas 619 313 610 611 12;
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#X obj 54 95 osc~ 100;
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#X msg 62 122 clear;
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#X text 12 374 The transfer function is H(Z) = 1/(1 - aZ^-1).;
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#X text 115 121 <-- clear internal state to zero;
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#N canvas 168 90 498 357 test 0;
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1;
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#X msg 85 132 set 1;
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#X obj 215 315 dac~;
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#X obj 215 279 *~;
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#X text 80 18 Stuff to test it:;
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#X obj 241 106 cos~;
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#X obj 77 227 cpole~;
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#X obj 261 65 phasor~;
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#X restore 459 488 pd test;
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#X text 10 392 (Pd also provides a suite of user-friendly filters.
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This and other raw filters are provided for situations which the user-friendly
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ones can't handle. See Chapter 8 of http://crca.ucsd.edu/~msp/techniques
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for an introduction to the necessary theory.);
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#X obj 52 7 cpole~;
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#X text 114 7 complex one-pole (recursive) filter \, raw;
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#X text 132 98 <-- signal to filter (real part);
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#X text 130 178 <-- signal to filter (imaginary part);
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#X obj 84 177 sig~;
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#X obj 115 202 sig~;
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#X text 162 204 <-- filter coefficient (real part);
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#X obj 145 224 sig~;
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#X obj 53 249 cpole~ 0.9 0.4;
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#X text 178 250 <-- creation arguments initialize filter;
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#X text 206 266 coefficient (real and imaginary part);
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#X text 14 283 The action of cpole~ is:;
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#X text 11 325 where y[n] is the output \, x[n] the input \, and a[n]
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the filter coefficient (all complex numbers). The filter is unstable
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if/when |a[n]|>1.;
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#X text 12 27 Cpole~ filters a complex audio signal (first two inlets)
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via a one-pole filter \, whose coefficients are controlled by creation
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arguments or by another complex audio signal (remaining two inlets).
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;
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#X text 171 148 <-- set internal state (real&imaginary parts);
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#X msg 64 148 set 0.6 0.8;
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#X text 190 226 <-- filter coefficient (imaginary part);
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#X text 73 305 y[n] = x[n] + a[n] * y[n-1];
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#X obj 97 563 lop~;
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#X text 16 563 see also:;
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#X obj 96 507 rzero~;
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#X obj 36 530 cpole~;
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#X obj 36 507 rpole~;
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#X obj 156 507 rzero_rev~;
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#X obj 96 530 czero~;
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#X obj 156 530 czero_rev~;
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#X text 255 507 real;
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#X text 254 531 complex;
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#X text 33 490 1-pole;
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#X text 93 490 1-zero;
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#X text 143 490 1-zero \, reversed;
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#X text 58 474 summary of raw filters:;
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#X text 140 563 etc.: user-friendly filters;
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#X text 343 583 updated for Pd version 0.43;
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