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-#X floatatom 118 172 0 0 0 0 - - -;
-#X obj 54 85 osc~ 100;
-#X msg 69 117 clear;
-#X obj 96 512 lop~;
-#X text 10 512 see also:;
-#X obj 52 7 rpole~;
-#X text 114 7 real one-pole (recursive) filter \, raw;
-#X text 8 35 Rpole~ filters an audio signal (left inlet) via a one-pole
-real filter \, whose coefficient is controlled by a creation argument
-or by an audio signal (right inlet).;
-#X text 413 511 updated for Pd version-0.38;
-#X obj 95 441 rzero~;
-#X obj 35 463 cpole~;
-#X obj 35 441 rpole~;
-#X obj 154 441 rzero_rev~;
-#X obj 95 463 czero~;
-#X obj 154 463 czero_rev~;
-#X text 253 441 real;
-#X text 252 464 complex;
-#X text 32 425 1-pole;
-#X text 92 425 1-zero;
-#X text 142 425 1-zero \, reversed;
-#X text 57 410 summary of raw filters:;
-#X msg 71 143 set 1;
-#X text 119 142 <-- set internal state;
-#X text 132 86 <-- signal to filter;
-#X text 150 173 <-- filter coefficient (may be a signal);
-#X text 150 195 <-- creation argument initializes filter coefficient
-;
-#X text 73 252 y[n] = y[n-1] + a[n] * x[n];
-#X text 10 310 The transfer function is H(Z) = 1/(1 - aZ^-1).;
-#X text 121 117 <-- clear internal state to zero;
-#X text 11 272 where y[n] is the output \, x[n] the input \, and a[n]
-the filter coefficient. The filter is unstable if/when |a[n]|>1.;
-#X obj 53 195 rpole~ 0.9;
-#X text 14 230 The action of rpole~ is:;
-#N canvas 393 91 326 287 test 0;
-#X obj 76 78 osc~;
-#X floatatom 76 55 5 0 0 0 - - -;
-#X obj 77 219 env~ 16384;
-#X floatatom 77 243 5 0 0 0 - - -;
-#X obj 76 168 rpole~;
-#X obj 104 107 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 0
-1;
-#X obj 76 105 *~;
-#X msg 97 137 set 1;
-#X floatatom 172 157 4 -100 100 0 - - -;
-#X obj 172 182 / 100;
-#X obj 214 256 dac~;
-#X obj 228 177 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 0
-1;
-#X obj 214 220 *~;
-#X obj 230 197 / 10;
-#X text 80 18 Stuff to test it:;
-#X connect 0 0 6 0;
-#X connect 1 0 0 0;
-#X connect 2 0 3 0;
-#X connect 4 0 2 0;
-#X connect 4 0 12 0;
-#X connect 5 0 6 1;
-#X connect 6 0 4 0;
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-#X connect 9 0 4 1;
-#X connect 11 0 13 0;
-#X connect 12 0 10 0;
-#X connect 12 0 10 1;
-#X connect 13 0 12 1;
-#X restore 457 427 pd test;
-#X text 136 512 etc.: user-friendly filters;
-#X text 8 331 (Pd also provides a suite of user-friendly filters. This
-and other raw filters are provided for situations which the user-friendly
-ones can't handle. See Chapter 8 of http://crca.ucsd.edu/~msp/techniques
-for an introduction to the necessary theory.);
-#X connect 0 0 30 1;
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-#X connect 21 0 30 0;