rsc3/doc-schelp/HelpSource/Classes/Latch.schelp

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class:: Latch
summary:: Sample and hold
related:: Classes/Gate
categories:: UGens>Triggers
Description::
Holds input signal value when triggered. Latch will output 0 until it receives its first trigger.
classmethods::
method::ar, kr
argument::in
The input signal.
argument::trig
Trigger. Trigger can be any signal. A trigger happens when the
signal changes from non-positive to positive.
Examples::
code::
{ Blip.ar(Latch.ar(WhiteNoise.ar, Impulse.ar(9)) * 400 + 500, 4, 0.2) }.play;
::
The above is just meant as example. LFNoise0 is a faster way to generate random steps:
code::
{ Blip.ar(LFNoise0.kr(9, 400 ,500), 4, 0.2) }.play;
::