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diff --git a/doc/pddp/rzero_rev~-help.pd b/doc/pddp/rzero_rev~-help.pd new file mode 100644 index 00000000..2d07d381 --- /dev/null +++ b/doc/pddp/rzero_rev~-help.pd @@ -0,0 +1,141 @@ +#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 rzero_rev~ 3 12 +0 18 -204280 -1 0; +#X obj 0 335 cnv 3 550 3 empty \$0-pddp.cnv.inlets inlets 8 12 0 13 +-228856 -1 0; +#N canvas 49 247 494 344 META 0; +#X text 12 105 PLATFORM windows macosx gnulinux; +#X text 12 185 LIBRARY internal; +#X text 12 225 WEBSITE http://crca.ucsd.edu/~msp/; +#X text 12 65 LICENSE SIBSD; +#X text 12 205 AUTHOR Miller Puckette; +#X text 12 285 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 real one-zero (non-recursive) "reverse" filter +\, raw; +#X text 12 25 NAME rzero_rev~; +#X text 12 125 INLET_0 signal clear set; +#X text 12 145 INLET_1 float signal; +#X text 12 165 OUTLET_0 signal; +#X text 12 245 RELEASE_DATE 1997; +#X text 12 265 RELEASE_VERSION; +#X restore 500 597 pd META; +#X obj 0 465 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 0 543 cnv 3 550 3 empty \$0-pddp.cnv.more_info more_info 8 12 +0 13 -228856 -1 0; +#X obj 78 344 cnv 17 3 65 empty \$0-pddp.cnv.let.0 0 5 9 0 16 -228856 +-162280 0; +#X obj 78 474 cnv 17 3 17 empty \$0-pddp.cnv.let.0 0 5 9 0 16 -228856 +-162280 0; +#X obj 78 419 cnv 17 3 35 empty \$0-pddp.cnv.let.1 1 5 9 0 16 -228856 +-162280 0; +#X text 98 418 float; +#X obj 459 3 rzero_rev~; +#X obj 431 20 pddp/pddplink http://wiki.puredata.info/en/rzero_rev~ +-text pdpedia: rzero_rev~; +#X floatatom 283 190 0 0 0 0 - - -; +#X obj 215 106 osc~ 100; +#X msg 230 138 clear; +#X msg 232 164 set 1; +#X obj 214 216 rzero_rev~ 1; +#X text 11 23 real one-zero (non-recursive) "reverse" filter \, raw +; +#X text 98 343 signal; +#X text 98 363 clear; +#X text 98 393 set; +#X text 168 363 - clear internal state to zero.; +#X text 168 343 - the incoming signal to be filtered.; +#X text 168 393 - set internal state.; +#X text 167 418 - filter coefficient.; +#X text 167 438 - filter coefficient.; +#X text 98 473 signal; +#X text 168 473 - the outgoing \, filtered signal.; +#X text 80 520 1) float; +#X text 167 520 - (optional) initializes the filter coefficient.; +#X text 69 49 [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.; +#N canvas 27 280 428 309 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 18 184 User-friendly Filters; +#X obj 21 213 lop~; +#X obj 72 212 hip~; +#X obj 124 213 bp~; +#X obj 169 214 vcf~; +#X obj 22 274 biquad~; +#X text 18 250 Other Objects; +#X text 18 113 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 [rzero_rev~] Related Objects; +#X restore 101 597 pd Related_objects; +#N canvas 80 271 326 287 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 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 obj 76 168 rzero_rev~; +#X connect 0 0 5 0; +#X connect 1 0 0 0; +#X connect 2 0 3 0; +#X connect 4 0 5 1; +#X connect 5 0 14 0; +#X connect 6 0 14 0; +#X connect 7 0 8 0; +#X connect 8 0 14 1; +#X connect 10 0 12 0; +#X connect 11 0 9 0; +#X connect 11 0 9 1; +#X connect 12 0 11 1; +#X connect 14 0 2 0; +#X connect 14 0 11 0; +#X restore 102 552 pd test; +#X text 70 281 where y[n] is the output \, x[n] the input \, and a[n] +the filter coefficient. The filter is always stable.; +#X text 126 261 y[n] = -a[n] * x[n] + x[n-1]; +#X text 70 312 The transfer function is H(Z) = -a + Z^-1.; +#X text 69 240 The action of [rzero_rev~] is:; +#X obj 4 597 pddp/pddplink pddp/help.pd -text help; +#X obj 455 51 pddp/dsp-reminder; +#X obj 99 572 pddp/pddplink ../3.audio.examples/H14.all.pass.pd -text +doc/3.audio.examples/H14.all.pass.pd; +#X text 98 438 signal; +#X connect 13 0 17 1; +#X connect 14 0 17 0; +#X connect 15 0 17 0; +#X connect 16 0 17 0; |