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-#X msg 64 130 clear;
-#X obj 77 483 lop~;
-#X text 8 483 see also:;
-#X text 331 482 updated for Pd version-0.38;
-#X obj 84 430 rzero~;
-#X obj 35 450 cpole~;
-#X obj 35 430 rpole~;
-#X obj 133 430 rzero_rev~;
-#X obj 84 450 czero~;
-#X obj 133 450 czero_rev~;
-#X text 211 430 real;
-#X text 210 451 complex;
-#X text 32 414 1-pole;
-#X text 81 414 1-zero;
-#X text 131 414 1-zero \, reversed;
-#X text 57 399 summary of raw filters:;
-#X msg 66 156 set 1;
-#X text 112 156 <-- set internal state;
-#X text 113 99 <-- signal to filter;
-#X text 155 189 <-- filter coefficient (may be a signal);
-#X text 143 210 <-- creation argument initializes filter coefficient
-;
-#X text 108 129 <-- clear internal state to zero;
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-#X obj 214 220 *~;
-#X obj 230 197 / 10;
-#X text 80 18 Stuff to test it:;
-#X obj 76 168 rzero_rev~;
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-#X restore 457 416 pd test;
-#X text 111 483 etc.: user-friendly filters;
-#X text 8 270 where y[n] is the output \, x[n] the input \, and a[n]
-the filter coefficient. The filter is always stable.;
-#X obj 52 7 rzero_rev~;
-#X text 139 7 real one-zero (non-recursive) "reverse" filter \, raw
-;
-#X obj 48 208 rzero_rev~ 1;
-#X text 7 35 Rzero_rev~ filters an audio signal (left inlet) via a
-one-zero real filter \, whose coefficient is controlled by a creation
-argument or by an audio signal (right inlet). The impulse response
-is that of "rzero" reversed in time.;
-#X text 14 230 The action of rpole_rev~ is:;
-#X text 71 251 y[n] = -a[n] * x[n] + x[n-1];
-#X text 6 302 The transfer function is H(Z) = -a + Z^-1.;
-#X text 5 321 (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.);
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