/usr/share/puredata/doc/3.audio.examples/D02.adsr.pd is in puredata-doc 0.45.4-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | #N canvas 40 23 609 630 12;
#N canvas 0 0 450 300 graph1 0;
#X array adsr-output 44100 float 0;
#X coords 0 1.02 44100 -1.02 200 130 1;
#X restore 121 332 graph;
#X text 121 464 ------ 1 second ------;
#X obj 18 92 r trigger;
#X obj 34 168 tabwrite~ adsr-output;
#X obj 56 143 r graphit;
#X msg 261 89 bang;
#X text 305 90 <-- attack and delayed release;
#X obj 272 113 del 500;
#X text 376 196 <-- attack only;
#X msg 261 177 \; pd dsp 1 \; trigger 1 \; graphit bang;
#X text 377 273 <-- release only;
#X msg 260 247 \; pd dsp 1 \; trigger 0 \; graphit bang;
#X msg 272 138 \; trigger 0;
#X text 324 452 -1;
#X text 326 327 1;
#X text 12 27 This patch introduces a simple "adsr" abstraction we'll
use frequently. You can click on the "adsr" object to see what's inside.
;
#X text 16 516 The active ingredient of the ADSR envelope generator
is a single line~ which gets passed messages to make the attack and
release behavior. You can retrigger the ADSR envelope generator all
you wish without having to wait for attacks or releases to finish;
#X text 104 5 ENVELOPE GENERATOR ABSTRACTION;
#X obj 18 118 adsr 1 100 200 50 300;
#X text 356 601 updated for Pd version 0.37;
#X obj 36 195 osc~ 440;
#X obj 17 220 *~;
#X obj 16 249 output~;
#X connect 2 0 18 0;
#X connect 4 0 3 0;
#X connect 5 0 9 0;
#X connect 5 0 7 0;
#X connect 7 0 12 0;
#X connect 18 0 3 0;
#X connect 18 0 21 0;
#X connect 20 0 21 1;
#X connect 21 0 22 0;
#X connect 21 0 22 1;
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