/usr/share/doc/faust/examples/volume.dsp is in faust 0.9.46-2.
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 | declare name "volume";
declare version "1.0";
declare author "Grame";
declare license "BSD";
declare copyright "(c)GRAME 2006";
//-----------------------------------------------
// Volume control in dB
//-----------------------------------------------
import("music.lib");
smooth(c) = *(1-c) : +~*(c);
gain = vslider("[1]", 0, -70, +4, 0.1) : db2linear : smooth(0.999);
process = *(gain);
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