#lang scribble/manual
@(require (for-label racket))

@title{Amplitude}
 Amplitude follower@section{categories}
  UGens>Analysis>Amplitude

@section{description}

Tracks the peak amplitude of a signal.

@section{classmethods}
 

@section{method}
  ar, kr

@section{argument}
 in
Input signal

@section{argument}
 attackTime
60dB convergence time for following attacks.

@section{argument}
 releaseTime
60dB convergence time for following decays.

@section{argument}
 mul

@section{argument}
 add

@section{examples}
 


@racketblock[
(
// use input amplitude to control SinOsc frequency
{
    SinOsc.ar(
            Amplitude.kr(
                        Blip.ar(3, 20) * LFNoise1.kr(0.1).range(0, 1),
                        MouseX.kr(0.001, 1, 1),
                        MouseY.kr(0.001, 1, 1),
                        1200,
                        400
            ),
            0, 0.3)
}.play;
)
::

]

@racketblock[
// use input amplitude to control Pulse amplitude - use headphones to prevent feedback.
{ Pulse.ar(90, 0.3, Amplitude.kr(SoundIn.ar(0))) }.play;
::

]

@racketblock[
(
// use input amplitude to control SinOsc frequency - use headphones to prevent feedback.
{
    SinOsc.ar(
            Amplitude.kr(
                        SoundIn.ar(0),
                        0.01,
                        0.01,
                        1200,
                        400
            ),
            0, 0.3)
}.play;
)
::
]