Classes | UGens > Filters > Linear | UGens > Envelopes

Decay2 : Filter : PureUGen : UGen : AbstractFunction : Object

Exponential decay
Source: Filter.sc

Description

Decay has a very sharp attack and can produce clicks. Decay2 rounds off the attack by subtracting one Decay from another. Decay2.ar(in, attackTime, decayTime) is equivalent to:

Decay.ar(in, decayTime) - Decay.ar(in, attackTime)

Class Methods

Decay2.ar(in: 0, attackTime: 0.01, decayTime: 1, mul: 1, add: 0)

Decay2.kr(in: 0, attackTime: 0.01, decayTime: 1, mul: 1, add: 0)

Arguments:

in

The input signal.

attackTime

60 dB attack time in seconds.

decayTime

60 dB decay time in seconds.

mul
add

Inherited class methods

Instance Methods

Inherited instance methods

Examples

// since attack and decay are a difference of two Decays,
// swapping the values, the envelope turns upside down:
plot({ Decay2.ar(Impulse.ar(1), 0.001, 0.01) })
plot({ Decay2.ar(Impulse.ar(1), 0.01, 0.001) })

// used as an envelope
{ Decay2.ar(Impulse.ar(XLine.kr(1,50,20), 0.25), 0.01, 0.2, FSinOsc.ar(600)) }.play;

// compare the above with Decay used as the envelope
{ Decay.ar(Impulse.ar(XLine.kr(1,50,20), 0.25), 0.2, FSinOsc.ar(600), 0)  }.play;