Update of /cvsroot/pure-data/pd/doc/5.reference In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv9652/doc/5.reference

Modified Files: help-line.pd help-lop~.pd Added Files: help-cpole~.pd help-czero_rev~.pd help-czero~.pd help-rpole~.pd help-rzero_rev~.pd help-rzero~.pd Log Message: checking in version 0.38test5.

Oops, I realize I forgot some more nice files, will add them and re-commit.

--- NEW FILE: help-rzero_rev~.pd --- #N canvas 717 52 526 510 12; #X floatatom 127 186 0 0 0 0 - - -; #X obj 49 98 osc~ 100; #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; #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 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 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.); #X connect 0 0 29 1; #X connect 1 0 29 0; #X connect 2 0 29 0; #X connect 18 0 29 0;

Index: help-lop~.pd =================================================================== RCS file: /cvsroot/pure-data/pd/doc/5.reference/help-lop~.pd,v retrieving revision 1.1.1.1 retrieving revision 1.2 diff -C2 -d -r1.1.1.1 -r1.2 *** help-lop~.pd 9 May 2003 16:03:48 -0000 1.1.1.1 --- help-lop~.pd 6 Sep 2004 20:20:25 -0000 1.2 *************** *** 1,31 **** ! #N canvas 402 99 566 329 12; #X obj 70 228 env~; ! #X floatatom 70 248; ! #X floatatom 107 178; ! #X obj 70 206 hip~ 5; ! #X text 119 201 The high pass filter is initialized to cutoff frequencies below 5 Hz.; #X obj 12 226 env~; ! #X floatatom 12 245; ! #X text 108 227 env~ gives the amplitude of the signal envelop in dB.; ! #X floatatom 12 107; ! #X msg 452 24 ; pd dsp 1; ! #X msg 452 58 ; pd dsp 0; #X obj 83 6 lop~; ! #X text 9 68 The left inlet is the incoming audio signal. The right inlet is the cutoff frequency in Hz.; #X obj 12 130 osc~ 100; #X text 57 105 <-- scroll to change input frequency; ! #X text 12 266 Compare the value of the original signal on the left with the value of the filtered signal on the right.; ! #X text 8 35 lop~ is a one-pole low pass filter with a specified rolloff frequency.; #X text 114 7 - one-pole low pass filter; #X msg 70 154 clear; #X text 114 153 <-- reinitialize internal state; #X text 139 179 <-- set cutoff frequency; ! #X text 364 306 updated for Pd version-0.30; #X connect 0 0 1 0; ! #X connect 2 0 3 1; ! #X connect 3 0 0 0; ! #X connect 5 0 6 0; ! #X connect 8 0 13 0; ! #X connect 13 0 5 0; ! #X connect 13 0 3 0; ! #X connect 18 0 3 0; --- 1,37 ---- ! #N canvas 390 359 566 329 12; #X obj 70 228 env~; ! #X floatatom 70 248 0 0 0 0 - - -; ! #X floatatom 107 178 0 0 0 0 - - -; #X obj 12 226 env~; ! #X floatatom 12 245 0 0 0 0 - - -; ! #X floatatom 12 107 0 0 0 0 - - -; #X obj 83 6 lop~; ! #X text 9 68 The left inlet is the incoming audio signal. The right ! inlet is the cutoff frequency in Hz.; #X obj 12 130 osc~ 100; #X text 57 105 <-- scroll to change input frequency; ! #X text 8 35 lop~ is a one-pole low pass filter with a specified rolloff ! frequency.; #X text 114 7 - one-pole low pass filter; #X msg 70 154 clear; #X text 114 153 <-- reinitialize internal state; #X text 139 179 <-- set cutoff frequency; ! #X obj 70 206 lop~ 5; ! #X text 121 209 The filter is initialized to cut off frequencies above ! 5 Hz.; ! #X text 12 266 Compare the strength of the original signal on the left ! with that of the filtered signal on the right.; ! #X text 104 228 env~ gives the amplitude of the signal in dB.; ! #X text 8 305 see also:; ! #X obj 77 304 hip~; ! #X obj 112 304 bp~; ! #X obj 139 304 vcf~; ! #X text 364 306 updated for Pd version-0.38; #X connect 0 0 1 0; ! #X connect 2 0 15 1; ! #X connect 3 0 4 0; ! #X connect 5 0 8 0; ! #X connect 8 0 3 0; ! #X connect 8 0 15 0; ! #X connect 12 0 15 0; ! #X connect 15 0 0 0;

Index: help-line.pd =================================================================== RCS file: /cvsroot/pure-data/pd/doc/5.reference/help-line.pd,v retrieving revision 1.1.1.1 retrieving revision 1.2 diff -C2 -d -r1.1.1.1 -r1.2 *** help-line.pd 9 May 2003 16:03:49 -0000 1.1.1.1 --- help-line.pd 6 Sep 2004 20:20:25 -0000 1.2 *************** *** 1,9 **** #N canvas 31 15 669 403 12; #X floatatom 22 339 0 0 0 0 - - -; ! #X msg 31 232 0 1000; ! #X msg 46 254 39; #X obj 66 15 line; #X text 106 14 - ramp generator; ! #X msg 22 209 1 1000; #X text 18 36 The line object takes (target , time) pairs and slews to the specified target over the time given , updating its output --- 1,9 ---- #N canvas 31 15 669 403 12; #X floatatom 22 339 0 0 0 0 - - -; ! #X msg 31 205 0 1000; ! #X msg 46 227 39; #X obj 66 15 line; #X text 106 14 - ramp generator; ! #X msg 22 182 1 1000; #X text 18 36 The line object takes (target , time) pairs and slews to the specified target over the time given , updating its output *************** *** 15,24 **** a message specifying some new target before reaching the previous one , it takes off from its current value.; ! #X text 93 221 send a pair to ramp to a new value; ! #X text 105 251 send a single number to jump; #X text 46 363 see also:; #X obj 132 361 line~; ! #X msg 57 279 stop; ! #X text 98 278 "stop" message to stop output; #X obj 22 313 line 0 100; #X text 383 369 updated for Pd version 0.37; --- 15,24 ---- a message specifying some new target before reaching the previous one , it takes off from its current value.; ! #X text 93 194 send a pair to ramp to a new value; ! #X text 105 224 send a single number to jump; #X text 46 363 see also:; #X obj 132 361 line~; ! #X msg 57 252 stop; ! #X text 98 251 "stop" message to stop output; #X obj 22 313 line 0 100; #X text 383 369 updated for Pd version 0.37; *************** *** 26,29 **** --- 26,31 ---- #X text 316 310 1 initial value; #X text 318 330 2 time grain in milliseconds; + #X msg 51 282 set 5; + #X text 99 282 "set" to change value (and stop) without output; #X connect 1 0 13 0; #X connect 2 0 13 0; *************** *** 31,32 **** --- 33,35 ---- #X connect 11 0 13 0; #X connect 13 0 0 0; + #X connect 18 0 13 0;

--- NEW FILE: help-cpole~.pd --- #N canvas 281 13 533 567 12; #X obj 54 90 osc~ 100; #X msg 62 117 clear; #X obj 79 547 lop~; #X text 10 550 see also:; #X text 333 549 updated for Pd version-0.38; #X obj 86 497 rzero~; #X obj 37 517 cpole~; #X obj 37 497 rpole~; #X obj 135 497 rzero_rev~; #X obj 86 517 czero~; #X obj 135 517 czero_rev~; #X text 213 497 real; #X text 212 518 complex; #X text 34 481 1-pole; #X text 83 481 1-zero; #X text 133 481 1-zero , reversed; #X text 59 466 summary of raw filters:; #X text 73 300 y[n] = y[n-1] + a[n] * x[n]; #X text 12 369 The transfer function is H(Z) = 1/(1 - aZ^-1).; #X text 106 116 <-- clear internal state to zero; #N canvas 168 90 498 357 test 0; #X obj 76 78 osc~; #X floatatom 76 55 5 0 0 0 - - -; #X obj 18 287 env~ 16384; #X floatatom 18 311 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 85 132 set 1; #X floatatom 350 112 4 -1000 1000 0 - - -; #X obj 215 315 dac~; #X obj 215 279 *~; #X text 80 18 Stuff to test it:; #X obj 241 106 cos~; #X obj 77 227 cpole~; #X obj 261 65 phasor~; #X floatatom 261 44 5 0 0 0 - - -; #X floatatom 132 55 5 0 0 0 - - -; #X obj 160 107 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 0 1; #X obj 132 105 *~; #X obj 132 78 phasor~; #X floatatom 324 42 5 0 0 0 - - -; #X obj 324 65 / 1000; #X obj 274 107 -~ 0.25; #X obj 274 129 cos~; #X obj 350 131 / 1000; #X obj 240 157 *~; #X obj 274 157 *~; #X obj 94 287 env~ 16384; #X floatatom 94 311 5 0 0 0 - - -; #X obj 247 275 dbtorms; #X floatatom 248 255 5 0 0 0 - - -; #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 12 0; #X connect 6 0 12 0; #X connect 7 0 23 0; #X connect 9 0 8 0; #X connect 9 0 8 1; #X connect 11 0 24 0; #X connect 12 0 2 0; #X connect 12 0 9 0; #X connect 12 1 26 0; #X connect 13 0 21 0; #X connect 13 0 11 0; #X connect 14 0 13 0; #X connect 15 0 18 0; #X connect 16 0 17 1; #X connect 17 0 12 0; #X connect 18 0 17 0; #X connect 19 0 20 0; #X connect 20 0 13 1; #X connect 21 0 22 0; #X connect 22 0 25 0; #X connect 23 0 25 1; #X connect 23 0 24 1; #X connect 24 0 12 2; #X connect 25 0 12 3; #X connect 26 0 27 0; #X connect 28 0 9 1; #X connect 29 0 28 0; #X restore 459 483 pd test; #X text 113 550 etc.: user-friendly filters; #X text 10 387 (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 52 7 cpole~; #X text 114 7 complex one-pole (recursive) filter , raw; #X text 118 91 <-- signal to filter (real part); #X text 117 173 <-- signal to filter (imaginary part); #X obj 84 172 sig~; #X obj 115 197 sig~; #X text 149 199 <-- filter coefficient (real part); #X obj 145 219 sig~; #X obj 53 244 cpole~ 0.9 0.4; #X text 159 246 <-- creation arguments initialize filter; #X text 187 262 coefficient (real and imaginary part); #X text 14 278 The action of cpole~ is:; #X text 11 320 where y[n] is the output , x[n] the input , and a[n] the filter coefficient (all complex numbers). The filter is unstable if/when |a[n]|>1.; #X text 8 31 Cpole~ filters a complex audio signal (first two inlets) via a one-pole filter , whose coefficients are controlled by creation arguments or by another complex audio signal (remaining two inlets). ; #X text 150 144 <-- set internal state (real&imaginary parts); #X msg 64 143 set 0.6 0.8; #X text 179 221 <-- filter coefficient (imaginary part); #X connect 0 0 31 0; #X connect 1 0 31 0; #X connect 27 0 31 1; #X connect 28 0 31 2; #X connect 30 0 31 3; #X connect 38 0 31 0;

--- NEW FILE: help-rpole~.pd --- #N canvas 56 7 526 510 12; #X floatatom 118 172 0 0 0 0 - - -; #X obj 54 85 osc~ 100; #X msg 69 117 clear; #X obj 77 483 lop~; #X text 8 483 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 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 71 143 set 1; #X text 117 143 <-- set internal state; #X text 118 86 <-- signal to filter; #X text 142 173 <-- filter coefficient (may be a signal); #X text 129 198 <-- creation argument initializes filter coefficient ; #X text 73 252 y[n] = y[n-1] + a[n] * x[n]; #X text 10 302 The transfer function is H(Z) = 1/(1 - aZ^-1).; #X text 113 116 <-- clear internal state to zero; #X text 8 270 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; #X connect 7 0 4 0; #X connect 8 0 9 0; #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 457 416 pd test; #X text 111 483 etc.: user-friendly filters; #X text 8 320 (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; #X connect 1 0 30 0; #X connect 2 0 30 0; #X connect 21 0 30 0;

--- NEW FILE: help-czero~.pd --- #N canvas 79 19 533 567 12; #X obj 54 90 osc~ 100; #X msg 62 117 clear; #X obj 79 547 lop~; #X text 10 550 see also:; #X text 333 549 updated for Pd version-0.38; #X obj 86 497 rzero~; #X obj 37 517 cpole~; #X obj 37 497 rpole~; #X obj 135 497 rzero_rev~; #X obj 86 517 czero~; #X obj 135 517 czero_rev~; #X text 213 497 real; #X text 212 518 complex; #X text 34 481 1-pole; #X text 83 481 1-zero; #X text 133 481 1-zero , reversed; #X text 59 466 summary of raw filters:; #X text 106 116 <-- clear internal state to zero; #N canvas 255 257 585 372 test 0; #X obj 152 296 env~ 16384; #X floatatom 152 320 5 0 0 0 - - -; #X floatatom 484 121 4 -1000 1000 0 - - -; #X obj 349 324 dac~; #X obj 349 288 *~; #X obj 375 115 cos~; #X floatatom 301 60 5 0 0 0 - - -; #X obj 329 112 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 0 1; #X obj 301 110 *~; #X obj 301 83 phasor~; #X floatatom 382 66 5 0 0 0 - - -; #X obj 382 89 / 1000; #X obj 408 116 -~ 0.25; #X obj 408 138 cos~; #X obj 484 140 / 1000; #X obj 374 166 *~; #X obj 408 166 *~; #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 245 220 czero~; #X floatatom 201 132 4 -1000 1000 0 - - -; #X obj 92 126 cos~; #X obj 112 85 phasor~; #X floatatom 115 60 5 0 0 0 - - -; #X obj 125 127 -~ 0.25; #X obj 125 149 cos~; #X obj 201 151 / 1000; #X obj 91 177 *~; #X obj 125 177 *~; #X text 214 27 Stuff to test it:; #X connect 0 0 1 0; #X connect 2 0 14 0; #X connect 4 0 3 0; #X connect 4 0 3 1; #X connect 5 0 15 0; #X connect 6 0 9 0; #X connect 7 0 8 1; #X connect 8 0 21 0; #X connect 9 0 8 0; #X connect 10 0 11 0; #X connect 11 0 5 0; #X connect 11 0 12 0; #X connect 12 0 13 0; #X connect 13 0 16 0; #X connect 14 0 16 1; #X connect 14 0 15 1; #X connect 15 0 21 2; #X connect 16 0 21 3; #X connect 17 0 18 0; #X connect 19 0 4 1; #X connect 20 0 19 0; #X connect 21 0 0 0; #X connect 21 0 4 0; #X connect 21 1 17 0; #X connect 22 0 28 0; #X connect 23 0 29 0; #X connect 24 0 26 0; #X connect 24 0 23 0; #X connect 25 0 24 0; #X connect 26 0 27 0; #X connect 27 0 30 0; #X connect 28 0 30 1; #X connect 28 0 29 1; #X connect 29 0 21 0; #X connect 30 0 21 1; #X restore 459 483 pd test; #X text 113 550 etc.: user-friendly filters; #X text 10 387 (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 text 118 91 <-- signal to filter (real part); #X text 117 173 <-- signal to filter (imaginary part); #X obj 84 172 sig~; #X obj 115 197 sig~; #X text 149 199 <-- filter coefficient (real part); #X obj 145 219 sig~; #X text 159 246 <-- creation arguments initialize filter; #X text 187 262 coefficient (real and imaginary part); #X text 150 144 <-- set internal state (real&imaginary parts); #X msg 64 143 set 0.6 0.8; #X obj 52 7 czero~; #X text 112 7 complex one-zero (non-recursive) filter , raw; #X text 8 31 Czero~ 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). ; #X text 179 221 <-- filter coefficient (imaginary part); #X text 14 279 The action of czero~ is:; #X text 73 300 y[n] = x[n] - a[n] * x[n-1]; #X text 11 320 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 12 369 The transfer function is H(Z) = 1 - aZ^-1.; #X obj 53 244 czero~ 0.9 0.4; #X connect 0 0 39 0; #X connect 1 0 39 0; #X connect 23 0 39 1; #X connect 24 0 39 2; #X connect 26 0 39 3; #X connect 30 0 39 0;

--- NEW FILE: help-czero_rev~.pd --- #N canvas 118 9 534 590 12; #X obj 57 106 osc~ 100; #X msg 65 133 clear; #X obj 82 563 lop~; #X text 13 566 see also:; #X text 336 565 updated for Pd version-0.38; #X obj 89 513 rzero~; #X obj 40 533 cpole~; #X obj 40 513 rpole~; #X obj 138 513 rzero_rev~; #X obj 89 533 czero~; #X obj 138 533 czero_rev~; #X text 216 513 real; #X text 215 534 complex; #X text 37 497 1-pole; #X text 86 497 1-zero; #X text 136 497 1-zero , reversed; #X text 62 482 summary of raw filters:; #X text 109 132 <-- clear internal state to zero; #N canvas 255 257 585 372 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 462 499 pd test; #X text 116 566 etc.: user-friendly filters; #X text 13 403 (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 text 121 107 <-- signal to filter (real part); #X text 120 189 <-- signal to filter (imaginary part); #X obj 87 188 sig~; #X obj 118 213 sig~; #X text 152 215 <-- filter coefficient (real part); #X obj 148 235 sig~; #X text 162 262 <-- creation arguments initialize filter; #X text 190 278 coefficient (real and imaginary part); #X text 153 160 <-- set internal state (real&imaginary parts); #X msg 67 159 set 0.6 0.8; #X text 182 237 <-- filter coefficient (imaginary part); #X text 17 295 The action of czero~ is:; #X text 14 336 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 obj 56 260 czero~ 0.9 0.4; #X obj 36 7 czero_rev~; #X text 114 9 complex one-zero (non-recursive) "reverse" filter , raw; #X text 11 34 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 77 316 y[n] = - a[n] * x[n] + x[n-1]; #X text 15 385 The transfer function is H(Z) = -a + Z^-1.; #X connect 0 0 34 0; #X connect 1 0 34 0; #X connect 23 0 34 1; #X connect 24 0 34 2; #X connect 26 0 34 3; #X connect 30 0 34 0;

--- NEW FILE: help-rzero~.pd --- #N canvas 56 7 526 510 12; #X floatatom 104 172 0 0 0 0 - - -; #X obj 54 85 osc~ 100; #X msg 69 117 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 71 143 set 1; #X text 117 143 <-- set internal state; #X text 118 86 <-- signal to filter; #X text 128 173 <-- filter coefficient (may be a signal); #X text 115 198 <-- creation argument initializes filter coefficient ; #X text 113 116 <-- clear internal state to zero; #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 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~; #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 457 416 pd test; #X text 111 483 etc.: user-friendly filters; #X obj 52 7 rzero~; #X text 114 7 real one-zero (non-recursive) filter , raw; #X text 8 35 Rzero~ 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).; #X obj 53 195 rzero~ 1; #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 text 10 302 The transfer function is H(Z) = 1 - aZ^-1.; #X text 73 252 y[n] = x[n] - a[n] * x[n-1]; #X text 8 320 (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; #X connect 1 0 30 0; #X connect 2 0 30 0; #X connect 18 0 30 0;