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class:: Changed
categories:: UGens>Triggers, UGens>Filters>Linear
summary:: Triggers when a value changes
description::
Triggers when a value changes.
classmethods::
method:: ar, kr
A special case fixed filter.
argument:: input
signal input
argument:: threshold
threshold
discussion::
Implements the formula:
code::
out(i) = abs(in(i) - in(i-1)) > thresh
::
examples::
detect changes in a signal:
code::
(
{
var changingSignal = LFNoise0.ar(1000);
var changed = Changed.ar(changingSignal);
[changingSignal, changed]
}.plot2
);
::
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