56 lines
1.1 KiB
Text
56 lines
1.1 KiB
Text
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class:: Decay2
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summary:: Exponential decay
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related:: Classes/Decay
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categories:: UGens>Filters>Linear, UGens>Envelopes
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Description::
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link::Classes/Decay:: has a very sharp attack and can produce clicks.
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Decay2 rounds off the attack by subtracting one Decay from another.
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code:: Decay2.ar(in, attackTime, decayTime):: is equivalent to:
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code::
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Decay.ar(in, decayTime) - Decay.ar(in, attackTime)
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classmethods::
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method::ar, kr
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argument::in
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The input signal.
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argument::attackTime
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60 dB attack time in seconds.
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argument::decayTime
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60 dB decay time in seconds.
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argument::mul
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argument::add
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Examples::
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code::
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// since attack and decay are a difference of two Decays,
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// swapping the values, the envelope turns upside down:
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plot({ Decay2.ar(Impulse.ar(1), 0.001, 0.01) })
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plot({ Decay2.ar(Impulse.ar(1), 0.01, 0.001) })
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// used as an envelope
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{ Decay2.ar(Impulse.ar(XLine.kr(1,50,20), 0.25), 0.01, 0.2, FSinOsc.ar(600)) }.play;
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// compare the above with Decay used as the envelope
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{ Decay.ar(Impulse.ar(XLine.kr(1,50,20), 0.25), 0.2, FSinOsc.ar(600), 0) }.play;
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::
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