/usr/lib/pd/extra/rtc/random-ramp-urn-help.pd is in pd-rtclib 4.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 | #N canvas 221 33 736 547 10;
#X text 146 13 Generates randomly fluctuating envelope shapes of a
given dynamic scale (defined by a min and a max velocity and a certain
number of values) within a time scale (defined by a min and a max ramp
time and a certain number of values). A rhythm bang set to the left
inlet outputs a velocity value. A stop message sent to the same inlet
will stop the whole process.;
#X text 408 329 randomly chosen ramp time;
#X floatatom 367 330 5 0 0 1 - - -;
#X text 277 360 randomly chosen velocity destination;
#X floatatom 243 360 4 0 0 1 - - -;
#X floatatom 265 268 4 0 0 2 nr._of_values - -;
#X floatatom 432 214 0 0 0 2 min_ramp_time - -;
#X floatatom 432 247 0 0 0 2 max_ramp_time - -;
#X floatatom 265 240 4 0 0 2 max_velocity - -;
#X floatatom 265 210 4 0 0 2 min_veloc. - -;
#X obj 120 191 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 0
1;
#X obj 120 401 vsl 15 128 0 127 0 0 empty empty empty 0 -8 0 8 -262144
-1 -1 0 1;
#X text 262 177 dynamic scale - - -;
#X text 427 177 ramp durations - - -;
#X floatatom 120 336 4 0 0 1 velocity - -;
#X text 501 518 1994 by Karlheinz Essl;
#X obj 39 239 sel 0;
#X msg 39 265 stop;
#N canvas 380 246 576 346 musical 0;
#X floatatom 140 224 0 0 0 0 - - -;
#X floatatom 44 224 0 0 0 0 - - -;
#X obj 44 140 brown-rhythm 50 1000 12 0.2;
#X obj 44 188 brown-melody 21 104 0.25;
#X msg 251 140 stop;
#X obj 251 112 sel 0;
#X obj 44 66 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 0 1
;
#X text 74 66 start stop;
#X obj 44 252 play2 127 500 1 1;
#X text 20 294 1994 by Karlheinz Essl;
#X text 89 227 note;
#X text 185 227 velocity;
#X obj 44 162 t a a;
#X obj 251 186 random-ramp-urn 10 127 5 250 2000 12;
#X text 20 33 This is a very simple musical example for using the random-ramp-urn
object:;
#X connect 0 0 8 1;
#X connect 1 0 8 0;
#X connect 2 0 12 0;
#X connect 3 0 1 0;
#X connect 4 0 13 0;
#X connect 5 0 4 0;
#X connect 6 0 2 0;
#X connect 6 0 5 0;
#X connect 12 0 3 0;
#X connect 12 1 13 0;
#X connect 13 0 0 0;
#X restore 438 405 pd musical;
#X text 153 191 start stop;
#X obj 120 239 metro 150;
#X obj 112 401 vsl 8 128 0 127 0 0 empty empty min_vel -30 -8 0 8 -262144
-1 -1 0 1;
#X obj 135 401 vsl 8 128 0 127 0 0 empty empty max_vel 0 -8 0 8 -262144
-1 -1 0 1;
#X floatatom 432 280 4 0 0 2 nr._of_values - -;
#X msg 210 141 random-ramp;
#X text 144 109 As opposed to "random-ramp" \, this version performs
a repetition check of the randomly chosen paramters.;
#X text 145 142 See also:;
#X obj 120 300 random-ramp-urn 10 127 5 250 2000 12;
#X text 15 29 random-ramp-urn;
#X connect 5 0 27 3;
#X connect 6 0 27 4;
#X connect 7 0 27 5;
#X connect 8 0 22 0;
#X connect 8 0 27 2;
#X connect 9 0 21 0;
#X connect 9 0 27 1;
#X connect 10 0 16 0;
#X connect 10 0 20 0;
#X connect 14 0 11 0;
#X connect 16 0 17 0;
#X connect 17 0 27 0;
#X connect 20 0 27 0;
#X connect 23 0 27 6;
#X connect 27 0 14 0;
#X connect 27 1 4 0;
#X connect 27 2 2 0;
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