/usr/lib/pd/extra/freeverb~/freeverb~-help.pd is in pd-freeverb 1.2-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#X obj 26 536 freeverb~;
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#X msg 25 42 roomsize \$1;
#X msg 25 87 damping \$1;
#X msg 25 131 width \$1;
#X msg 25 175 wet \$1;
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#X msg 59 242 print;
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#X text 154 274 - start and stop "freeze" mode (off by default). If
on \, reverb tail gets freezed (sample and hold).;
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#X text 117 18 - size of the room to be simulated. Larger values result
in longer reverb. Values above 1 will result in feedback or 'room resonance'
(i.e. reverb getting louder);
#X floatatom 7 23 3 0 0 0 - - -;
#X text 116 110 - stereo width of the reverb \, i.e. how much of the
reverb part from the left and right channel mix. Turning this to 1
(nearly gives two separate mono reverbs.;
#X text 115 152 - level of the wet (reverbed) signal \, between 0 and
1;
#X text 113 197 - level of the dry (i.e. unprocessed or original) signal
\, between 0 and 1 Note that wet and dry signals mix and thus can cause
clipping if both are set at high levels.;
#X text 115 242 - print the current values of these parameters.;
#X text 157 305 - bypass reverb processing when set to 1 Can be used
to compare reverbed signal with original signal \, and to save CPU
when reverb is not needed.;
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#X floatatom 7 113 3 0 0 0 - - -;
#X floatatom 7 156 3 0 0 0 - - -;
#X floatatom 7 200 3 0 0 0 - - -;
#X text 114 65 - amount of damping of the room's surfaces. <=1 means
nearly no damping \, resulting in a lot of reflection (long reverb)
\, >1 means high damping of signals (short reverb).;
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#X text -165 37 ARGUMENTS:;
#X text -149 266 OUTLETS:;
#X text -158 301 EXAMPLES:;
#X text -161 483 SEE ALSO:;
#X obj -162 12 freeverb~;
#X text -142 219 INLETS:;
#X text -73 12 stereo reverb using the Schroeder/Moorer model;
#X text -75 245 Right: audio input for the right channel.;
#X text -75 219 Left: audio input for the left channel and message
input for settings messages.;
#X text -75 266 Signal: the two outlets are the left and right channels
of a stereo output pair.;
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#X msg -74 150 print;
#X msg -74 172 freeze \$1;
#X msg -74 194 bypass \$1;
#X text -11 149 - print the current values of the above parameters
;
#X text 2 172 - start/stop freeze of reverb tail \, using 1 or 0;
#X text 6 193 - bypass the reverb processing \, using a 1 or 0;
#N canvas 0 22 454 304 algorithm 0;
#X text 32 52 freeverb~ is a simple implementation of the standard
Schroeder/Moorer reverb model. It uses 8 comb filters in parallel on
both channels. It then feeds the result of the reverb through 4 allpass
filters in series on both channels. These "smooth" the sound. The filters
on the right channel are slightly detuned compared to the left channel
in order to create a stereo effect.;
#X restore 19 510 pd algorithm notes;
#X text -13 127 - level of unprocessed signal \, between 0 and 1 (default:
0);
#X text -9 106 - level of reverbed signal \, between 0 and 1 (default:
0.3);
#X text 13 61 - amount of damping of room's surfaces (default: 0.5)
;
#X text -5 85 - stereo width of reverb (default: 1);
#X text 17 39 - size of the room to be simulated (default=0.85);
#X text -29 537 Hans-Christoph Steiner 2005 \, based on Olaf Matthes'
Max help;
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