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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 | class:: GbmanN
summary:: Gingerbreadman map chaotic generator
categories:: UGens>Generators>Chaotic
related:: Classes/GbmanL
description::
A non-interpolating sound generator based on the difference equations:
code::
x[n+1] = 1 - y[n] + abs(x[n])
y[n+1] = x[n]
::
warning:: reviser formulae converted to c like code ::
The behavior of the system is only dependent on its initial conditions.
Reference: emphasis:: Devaney, R. L. "The Gingerbreadman." Algorithm 3, 15-16, Jan. 1992. ::
classmethods::
method:: ar
argument:: freq
Iteration frequency in Hertz
argument:: xi
Initial value of x
argument:: yi
Initial value of y
argument:: mul
argument:: add
examples::
code::
// default initial params
{ GbmanN.ar(MouseX.kr(20, SampleRate.ir)) * 0.1 }.play(s);
// change initial params
{ GbmanN.ar(MouseX.kr(20, SampleRate.ir), -0.7, -2.7) * 0.1 }.play(s);
// wait for it...
{ GbmanN.ar(MouseX.kr(20, SampleRate.ir), 1.2, 2.0002) * 0.1 }.play(s);
// as a frequency control
{ SinOsc.ar(GbmanN.ar(40)*400+500)*0.4 }.play(s);
::
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