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class:: Lag2UD
summary:: Exponential lag
categories:: UGens>Filters
related:: Classes/Lag, Classes/Lag2, Classes/Lag3, Classes/LagUD, Classes/Lag3UD
description::
Lag2 is equivalent to Lag.kr(Lag.kr(in, time), time), thus resulting in a smoother transition. This saves on CPU as you only have to calculate the decay factor once instead of twice. See link::Classes/Lag:: for more details.
classmethods::
method:: ar, kr
argument:: in
input signal.
argument:: lagTimeU
60 dB lag time in seconds for the upgoing signal.
argument:: lagTimeD
60 dB lag time in seconds for the downgoing signal.
examples::
code::
(
// used to lag pitch
SynthDef( \lag2ud_help,
{ arg freq=300,lagup=1, lagdown=5;
Out.ar( 0,
SinOsc.ar( // sine wave
Lag2UD.kr( // lag the frequency
freq,
lagup,
lagdown
),
0, // phase
0.2 // sine amplitude
)
);
}).send(s);
)
x = Synth.new( \lag2ud_help ); // create the synth
x.set( \freq, 500 ); // set the frequency to a higher value (takes 1 second)
x.set( \freq, 100 ); // set the frequency to a lower value (takes 5 seconds)
x.free;
::
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