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class:: GVerb
summary:: A two-channel reverb
categories:: UGens>Reverbs
related:: Classes/FreeVerb, Classes/FreeVerb2
description::
A two-channel reverb link::Classes/UGen::, based on the "GVerb" LADSPA effect by Juhana Sadeharju (kouhia at nic.funet.fi).
subsection:: Known issues
list::
## There is a large CPU spike when the synth is instantiated while all the delay lines are zeroed out.
## Quick changes in roomsize result in zipper noise.
## emphasis::Changing the roomsize does not work properly! Still trying to look for the bug... (-josh)::
::
classmethods::
method:: ar
argument:: in
mono input.
argument:: roomsize
in squared meters.
argument:: revtime
in seconds.
argument:: damping
0 to 1, high frequency rolloff, 0 damps the reverb signal completely, 1 not at all.
argument:: inputbw
0 to 1, same as damping control, but on the input signal.
argument:: spread
a control on the stereo spread and diffusion of the reverb signal.
argument:: drylevel
amount of dry signal.
argument:: earlyreflevel
amount of early reflection level.
argument:: taillevel
amount of tail level.
argument:: maxroomsize
to set the size of the delay lines. Defaults to roomsize + 1.
argument:: mul
argument:: add
examples::
code::
(
SynthDef(\test, { |out, roomsize, revtime, damping, inputbw, spread = 15, drylevel, earlylevel,
taillevel|
var a = Resonz.ar(
Array.fill(4, { Dust.ar(2) }),
1760 * [1, 2, 4, 8],
0.01
).sum * 10;
// var a = SoundIn.ar(0);
// var a = PlayBuf.ar(1, 0);
Out.ar(out,
GVerb.ar(
a,
roomsize,
revtime,
damping,
inputbw,
spread,
drylevel.dbamp,
earlylevel.dbamp,
taillevel.dbamp,
roomsize, 0.3)
+ a
)
}).add
)
s.scope(2);
// bathroom
a = Synth(\test, [\roomsize, 5, \revtime, 0.6, \damping, 0.62, \inputbw, 0.48, \drylevel -6, \earlylevel, -11, \taillevel, -13]);
a.free;
//living room
a = Synth(\test, [\roomsize, 16, \revtime, 1.24, \damping, 0.10, \inputbw, 0.95, \drylevel -3, \earlylevel, -15, \taillevel, -17]);
a.free;
//church
a = Synth(\test, [\roomsize, 80, \revtime, 4.85, \damping, 0.41, \inputbw, 0.19, \drylevel -3, \earlylevel, -9, \taillevel, -11]);
a.free;
// cathedral
a = Synth(\test, [\roomsize, 243, \revtime, 1, \damping, 0.1, \inputbw, 0.34, \drylevel -3, \earlylevel, -11, \taillevel, -9]);
a.free
// canyon
a = Synth(\test, [\roomsize, 300, \revtime, 103, \damping, 0.43, \inputbw, 0.51, \drylevel -5, \earlylevel, -26, \taillevel, -20]);
a.free;
s.quit;
::
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