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diff --git a/doc/pddp/czero_rev~-help.pd b/doc/pddp/czero_rev~-help.pd new file mode 100644 index 00000000..cbc1dbe2 --- /dev/null +++ b/doc/pddp/czero_rev~-help.pd @@ -0,0 +1,211 @@ +#N canvas 0 0 555 619 10; +#X obj 0 595 cnv 15 552 21 empty \$0-pddp.cnv.footer empty 20 12 0 +14 -228856 -66577 0; +#X obj 0 0 cnv 15 552 40 empty \$0-pddp.cnv.header czero_rev~ 3 12 +0 18 -204280 -1 0; +#X obj 0 303 cnv 3 550 3 empty \$0-pddp.cnv.inlets inlets 8 12 0 13 +-228856 -1 0; +#N canvas 47 228 494 384 META 0; +#X text 12 105 PLATFORM windows macosx gnulinux; +#X text 12 245 LIBRARY internal; +#X text 12 285 WEBSITE http://crca.ucsd.edu/~msp/; +#X text 12 265 AUTHOR Miller Puckette; +#X text 12 345 HELP_PATCH_AUTHORS Updated for Pd version-0.38. Jonathan +Wilkes revised the patch to conform to the PDDP template for Pd version +0.42.; +#X text 12 5 GENRE help; +#X text 12 45 KEYWORDS signal filter; +#X text 12 85 DESCRIPTION complex one-zero (non-recursive) "reverse" +filter \, raw; +#X text 12 65 LICENSE SIBSD; +#X text 12 25 NAME czero_rev~; +#X text 12 125 INLET_0 signal set clear; +#X text 12 145 INLET_1 signal; +#X text 12 165 INLET_2 signal; +#X text 12 185 INLET_3 signal; +#X text 12 205 OUTLET_0 signal; +#X text 12 225 OUTLET_1 signal; +#X text 12 305 RELEASE_DATE 1997; +#X text 12 325 RELEASE_VERSION; +#X restore 500 597 pd META; +#X obj 0 440 cnv 3 550 3 empty \$0-pddp.cnv.outlets outlets 8 12 0 +13 -228856 -1 0; +#X obj 0 502 cnv 3 550 3 empty \$0-pddp.cnv.argument arguments 8 12 +0 13 -228856 -1 0; +#X obj 0 559 cnv 3 550 3 empty \$0-pddp.cnv.more_info more_info 8 12 +0 13 -228856 -1 0; +#N canvas 41 281 428 309 Related_objects 0; +#X obj 74 60 rzero~; +#X obj 25 80 cpole~; +#X obj 25 60 rpole~; +#X obj 123 60 rzero_rev~; +#X obj 74 80 czero~; +#X obj 123 80 czero_rev~; +#X text 201 60 real; +#X text 200 81 complex; +#X text 22 44 1-pole; +#X text 71 44 1-zero; +#X text 121 44 1-zero \, reversed; +#X text 47 29 summary of raw filters:; +#X text 19 184 User-friendly Filters; +#X obj 22 213 lop~; +#X obj 73 212 hip~; +#X obj 125 213 bp~; +#X obj 170 214 vcf~; +#X obj 23 274 biquad~; +#X text 19 250 Other Objects; +#X text 19 113 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 obj 1 1 cnv 15 425 20 empty \$0-pddp.cnv.subheading empty 3 12 0 +14 -204280 -1 0; +#X text 7 1 [czero_rev~] Related Objects; +#X restore 101 597 pd Related_objects; +#X obj 78 449 cnv 17 3 17 empty \$0-pddp.cnv.let.0 0 5 9 0 16 -228856 +-162280 0; +#X obj 78 312 cnv 17 3 45 empty \$0-pddp.cnv.let.0 0 5 9 0 16 -228856 +-162280 0; +#X text 98 312 signal; +#X text 98 449 signal; +#N canvas 3 174 550 380 test 0; +#X obj 152 296 env~ 16384; +#X floatatom 152 320 5 0 0 0 - - -; +#X floatatom 499 76 4 -1000 1000 0 - - -; +#X obj 349 324 dac~; +#X obj 349 288 *~; +#X obj 390 70 cos~; +#X floatatom 298 8 5 0 0 0 - - -; +#X obj 298 31 phasor~; +#X floatatom 398 14 5 0 0 0 - - -; +#X obj 397 39 / 1000; +#X obj 423 71 -~ 0.25; +#X obj 423 93 cos~; +#X obj 499 95 / 1000; +#X obj 389 121 *~; +#X obj 423 121 *~; +#X obj 228 296 env~ 16384; +#X floatatom 228 320 5 0 0 0 - - -; +#X obj 381 284 dbtorms; +#X floatatom 382 264 5 0 0 0 - - -; +#X obj 117 89 phasor~; +#X floatatom 115 60 5 0 0 0 - - -; +#X text 77 13 Stuff to test it:; +#X obj 131 149 cpole~; +#X obj 241 262 *~ -1; +#X obj 21 261 env~ 16384; +#X floatatom 21 285 5 0 0 0 - - -; +#X obj 50 312 env~ 16384; +#X floatatom 50 336 5 0 0 0 - - -; +#X obj 138 181 cpole~; +#X obj 146 216 czero_rev~; +#X obj 154 264 czero_rev~; +#X msg 204 103 clear; +#X obj 262 50 cos~; +#X obj 261 83 *~ 0.02; +#X obj 193 50 sig~ 1.1; +#X obj 448 296 *~; +#X connect 0 0 1 0; +#X connect 2 0 12 0; +#X connect 4 0 3 0; +#X connect 5 0 13 0; +#X connect 6 0 7 0; +#X connect 7 0 32 0; +#X connect 8 0 9 0; +#X connect 9 0 7 1; +#X connect 10 0 11 0; +#X connect 11 0 14 0; +#X connect 12 0 14 1; +#X connect 12 0 13 1; +#X connect 13 0 22 2; +#X connect 13 0 28 2; +#X connect 13 0 29 2; +#X connect 13 0 30 2; +#X connect 14 0 22 3; +#X connect 14 0 23 0; +#X connect 14 0 29 3; +#X connect 15 0 16 0; +#X connect 17 0 4 1; +#X connect 17 0 35 1; +#X connect 18 0 17 0; +#X connect 19 0 22 0; +#X connect 19 0 24 0; +#X connect 19 0 35 0; +#X connect 20 0 19 0; +#X connect 22 0 28 0; +#X connect 22 1 28 1; +#X connect 23 0 28 3; +#X connect 23 0 30 3; +#X connect 24 0 25 0; +#X connect 26 0 27 0; +#X connect 28 0 26 0; +#X connect 28 0 29 0; +#X connect 28 1 29 1; +#X connect 29 0 30 0; +#X connect 29 1 30 1; +#X connect 30 0 0 0; +#X connect 30 0 4 0; +#X connect 30 1 15 0; +#X connect 31 0 22 0; +#X connect 31 0 28 0; +#X connect 32 0 33 0; +#X connect 33 0 5 0; +#X connect 33 0 10 0; +#X connect 34 0 33 0; +#X connect 35 0 3 1; +#X restore 101 568 pd test; +#X text 98 327 clear; +#X text 98 342 set; +#X obj 78 362 cnv 17 3 17 empty \$0-pddp.cnv.let.1 1 5 9 0 16 -228856 +-162280 0; +#X text 98 362 signal; +#X obj 78 387 cnv 17 3 17 empty \$0-pddp.cnv.let.2 2 5 9 0 16 -228856 +-162280 0; +#X text 98 387 signal; +#X obj 78 412 cnv 17 3 17 empty \$0-pddp.cnv.let.3 3 5 9 0 16 -228856 +-162280 0; +#X text 98 412 signal; +#X obj 78 474 cnv 17 3 17 empty \$0-pddp.cnv.let.1 1 5 9 0 16 -228856 +-162280 0; +#X text 98 474 signal; +#X obj 460 3 czero_rev~; +#X obj 430 20 pddp/pddplink http://wiki.puredata.info/en/czero_rev~ +-text pdpedia: czero_rev~; +#X text 198 196 where y[n] is the output \, x[n] the input \, and a[n] +the filter coefficient (all complex numbers). The filter is always +stable.; +#X text 261 176 y[n] = - a[n] * x[n] + x[n-1]; +#X text 199 245 The transfer function is H(Z) = -a + Z^-1.; +#X obj 52 127 osc~ 100; +#X msg 60 152 clear; +#X obj 86 203 sig~; +#X obj 120 225 sig~; +#X obj 156 245 sig~; +#X msg 67 178 set 0.6 0.8; +#X obj 51 268 czero_rev~ 0.9 0.4; +#X text 11 23 complex one-zero (non-recursive) "reverse" filter \, +raw; +#X text 158 312 - signal to filter (real part).; +#X text 158 327 - clear internal state to zero.; +#X text 158 342 - set internal state (real & imaginary parts).; +#X text 158 362 - signal to filter ( imaginary part ).; +#X text 158 387 - filter coefficient ( real part ).; +#X text 158 412 - filter coefficient ( imaginary part ).; +#X text 157 521 - (optional) filter coefficient (real part).; +#X text 157 536 - (optional) filter coefficient (imaginary part).; +#X text 80 521 1) float; +#X text 80 536 2) float; +#X text 93 57 [czero_rev~] filters a complex audio signal (first two +inlets) via a one-zero filter \, whose coefficients are controlled +by creation arguments or by another complex audio signal (remaining +two inlets). The impulse response is that of "rzero" reversed in time. +; +#X text 201 155 The action of [czero_rev~] is:; +#X obj 4 597 pddp/pddplink pddp/help.pd -text help; +#X obj 455 51 pddp/dsp-reminder; +#X connect 28 0 34 0; +#X connect 29 0 34 0; +#X connect 30 0 34 1; +#X connect 31 0 34 2; +#X connect 32 0 34 3; +#X connect 33 0 34 0; |