/usr/lib/pd/extra/ekext/steady-help.pd is in pd-ekext 0.1.1-2.
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 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 | #N canvas 455 323 616 303 10;
#N canvas 0 22 696 311 fiddle-example 0;
#X obj 139 187 steady;
#X floatatom 98 223 5 0 0 3 max - -;
#X floatatom 148 223 5 0 0 3 min - -;
#X floatatom 199 224 5 0 0 3 through - -;
#X floatatom 197 159 5 0 0 0 - - -;
#X msg 197 127 5;
#X obj 197 103 loadbang;
#X text 202 172 maximum;
#X text 209 183 jump;
#N canvas 0 22 359 329 bad-fm 0;
#X obj 43 170 osc~ 380;
#X obj 43 243 osc~ 550;
#X obj 43 223 +~ 550;
#X obj 43 198 *~ 440;
#X obj 43 144 +~ 280;
#X obj 43 120 line~;
#X obj 43 97 pack f 1000;
#X obj 43 31 metro 1000;
#X obj 43 50 t b b;
#X msg 72 69 0;
#X obj 43 264 outlet~;
#X obj 122 7 inlet;
#X msg 43 71 850;
#X connect 0 0 3 0;
#X connect 1 0 10 0;
#X connect 2 0 1 0;
#X connect 3 0 2 0;
#X connect 4 0 0 0;
#X connect 5 0 4 0;
#X connect 6 0 5 0;
#X connect 7 0 8 0;
#X connect 8 0 12 0;
#X connect 8 1 9 0;
#X connect 9 0 5 0;
#X connect 11 0 7 0;
#X connect 12 0 6 0;
#X restore 87 102 pd bad-fm;
#X obj 87 124 fiddle~;
#X obj 117 145 unpack;
#X floatatom 123 168 5 0 0 0 - - -;
#X obj 109 79 switch~;
#X obj 87 50 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 0 1
;
#X text 271 84 steady can be useful for eliminating errors from the
raw pitch output of fiddle~;
#X obj 36 244 dac~;
#X obj 70 167 bng 15 250 50 0 empty empty reset 0 -6 0 8 -262144 -1
-1;
#X text 272 115 or for just keeping the values within range of a specific
pitch from changing too quickly - so that a sort of 'closest pitch'
output is given from the rightmost outlet;
#X obj 32 216 *~ 0.4;
#X connect 0 0 1 0;
#X connect 0 1 2 0;
#X connect 0 2 3 0;
#X connect 4 0 0 1;
#X connect 5 0 4 0;
#X connect 6 0 5 0;
#X connect 9 0 10 0;
#X connect 9 0 19 0;
#X connect 10 2 11 0;
#X connect 11 0 12 0;
#X connect 12 0 0 0;
#X connect 14 0 9 0;
#X connect 14 0 13 0;
#X connect 17 0 0 0;
#X connect 19 0 16 0;
#X connect 19 0 16 1;
#X restore 42 52 pd fiddle-example;
#X obj 45 187 steady;
#X obj 44 107 random 100;
#X obj 44 88 metro 100;
#X floatatom 45 132 5 0 0 0 - - -;
#X msg 102 147 8;
#X obj 102 129 loadbang;
#X floatatom 102 165 5 0 0 0 - - -;
#X text 106 178 maximum;
#X text 114 190 jump;
#X floatatom 27 217 5 0 0 3 max - -;
#X floatatom 77 217 5 0 0 3 min - -;
#X floatatom 128 218 5 0 0 3 through - -;
#X obj 53 162 bng 15 250 50 0 empty empty set-value 0 -6 0 8 -262144
-1 -1;
#X text 40 269 (c) 2005 Edward Kelly <morph_2016@yahoo.co.uk>;
#X text 194 28 steady takes a stream of numbers as its input.;
#X text 193 49 its output is the maximum and minimum and a through
outlet;
#X text 194 95 the right inlet sets the maximum jump between consecutive
numbers in the right inlet \, and any value that is different from
the previous value by +/- more than this number will be filtered out.
;
#X text 194 144 banging the left inlet causes steady to re-initialise
\, so that the first number after the bang is let through \, and filtering
occurs from then onwards.;
#X text 194 188 ...sometimes useful to filter out erroneous results
from fiddle~ and other externs...;
#X text 194 73 but...;
#X connect 1 0 10 0;
#X connect 1 1 11 0;
#X connect 1 2 12 0;
#X connect 2 0 4 0;
#X connect 3 0 2 0;
#X connect 4 0 1 0;
#X connect 5 0 7 0;
#X connect 6 0 5 0;
#X connect 6 0 3 0;
#X connect 7 0 1 1;
#X connect 13 0 1 0;
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