From 9c0e19a3be2288db79e2502e5fa450c3e20a668d Mon Sep 17 00:00:00 2001 From: Guenter Geiger Date: Fri, 9 May 2003 16:04:00 +0000 Subject: This commit was generated by cvs2svn to compensate for changes in r610, which included commits to RCS files with non-trunk default branches. svn path=/trunk/; revision=611 --- pd/doc/3.audio.examples/H02.packets.pd | 161 +++++++++++++++++++++++++++++++++ 1 file changed, 161 insertions(+) create mode 100644 pd/doc/3.audio.examples/H02.packets.pd (limited to 'pd/doc/3.audio.examples/H02.packets.pd') diff --git a/pd/doc/3.audio.examples/H02.packets.pd b/pd/doc/3.audio.examples/H02.packets.pd new file mode 100644 index 00000000..072ae27d --- /dev/null +++ b/pd/doc/3.audio.examples/H02.packets.pd @@ -0,0 +1,161 @@ +#N canvas 83 221 878 705 12; +#X obj 315 424 line~; +#X obj 47 517 cos~; +#X graph graph1 0 -2 882 2 644 469 844 339; +#X array pulse-output 882 float 0; +#X pop; +#X floatatom 84 633 0 0 0; +#N canvas 176 241 532 273 output 0; +#X obj 338 160 t b; +#X obj 338 110 f; +#X obj 338 60 inlet; +#X text 344 29 mute; +#X obj 338 185 f; +#X msg 425 178 0; +#X msg 338 85 bang; +#X obj 338 135 moses 1; +#X obj 398 111 moses 1; +#X obj 83 148 dbtorms; +#X obj 398 86 r master-lvl; +#X obj 83 42 r master-lvl; +#X obj 338 210 s master-lvl; +#X obj 17 148 inlet~; +#X obj 199 41 inlet; +#X text 199 18 level; +#X obj 199 100 s master-lvl; +#X msg 96 65 set \$1; +#X obj 96 89 outlet; +#X msg 214 64 \; pd dsp 1; +#X obj 83 194 line~; +#X obj 22 212 *~; +#X obj 22 241 dac~; +#X obj 83 171 pack 0 50; +#X text 15 125 audio; +#X text 93 110 show level; +#X obj 17 177 hip~ 1; +#X connect 0 0 4 0; +#X connect 1 0 7 0; +#X connect 2 0 6 0; +#X connect 4 0 12 0; +#X connect 5 0 12 0; +#X connect 6 0 1 0; +#X connect 7 0 0 0; +#X connect 7 1 5 0; +#X connect 8 1 4 1; +#X connect 9 0 23 0; +#X connect 10 0 1 1; +#X connect 10 0 8 0; +#X connect 11 0 9 0; +#X connect 11 0 17 0; +#X connect 13 0 26 0; +#X connect 14 0 16 0; +#X connect 14 0 19 0; +#X connect 17 0 18 0; +#X connect 20 0 21 1; +#X connect 21 0 22 0; +#X connect 21 0 22 1; +#X connect 23 0 20 0; +#X connect 26 0 21 0; +#X restore 48 660 pd output; +#X msg 124 633 MUTE; +#X obj 315 400 pack 0 50; +#X floatatom 315 328 0 0 0; +#X obj 47 429 -~ 0.5; +#X obj 47 468 *~; +#X obj 315 352 / 10; +#X obj 47 493 clip~ -0.5 0.5; +#X text 315 306 bandwidth; +#X msg 165 602 bang; +#X obj 315 448 +~ 1; +#X obj 48 540 +~ 1; +#X obj 197 513 cos~; +#X obj 48 569 *~; +#X floatatom 219 342 4 0 0; +#X obj 219 366 / 10; +#X text 644 472 --- 0.02 seconds ---; +#X obj 197 487 *~; +#N canvas 204 427 939 588 graph 0; +#X obj 91 345 inlet~; +#X obj 729 341 inlet; +#X obj 74 395 tabwrite~ pulse-output; +#X obj 319 350 inlet~; +#X obj 493 343 inlet~; +#X obj 302 400 tabwrite~ window; +#X obj 484 401 tabwrite~ carrier; +#X msg 390 53 \; array2 rename window; +#X connect 0 0 2 0; +#X connect 1 0 2 0; +#X connect 1 0 5 0; +#X connect 1 0 6 0; +#X connect 3 0 5 0; +#X connect 4 0 6 0; +#X restore 76 602 pd graph; +#X obj 315 376 max 0; +#X obj 219 438 line~; +#X obj 219 414 pack 0 50; +#X obj 219 390 max 0; +#X graph graph3 0 -2 881 2 644 328 844 188; +#X array carrier 882 float 0; +#X pop; +#X graph graph4 0 -2 881 2 645 175 845 35; +#X array window 882 float 0; +#X pop; +#X text 211 601 <-- graph; +#X floatatom 47 381 4 0 0; +#X obj 47 405 phasor~ 100; +#X text 31 2 WINDOWED PACKETS; +#X text 169 632 <-- output; +#X text 43 356 freq.; +#X text 43 337 fundamental; +#X text 28 51 The simpler technique is to synthesize enveloped sinusoidal +wave packets. The packets should repeat at the fundamental frequency +\, but the frequency of the packet itself controls the center frequency +of the formant. The length of the packet varies inversely with bandwidth. +; +#X text 27 132 In the patch below \, the "clip~" followed by "cos~" +and "+~ 1" is the enveloping ("windowing" function \, which appears +in the top graph. This is just the original PWM patch from part 2 The +carrier \, on the other hand \, is a broken sinusoid made by amplifying +the phasor~ (the "*~" controlled by "center freq.") and taking the +cos~ of the result. The "breaks" in the sinusoid only occur when the +enveloping signal is zero.; +#X text 197 256 center; +#X text 195 275 freq. 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