Lag3 is equivalent to
Lag.kr(Lag.kr(Lag.kr(in, time), time), time), thus resulting in a smoother transition. This saves on CPU as you only have to calculate the decay factor once instead of three times. See Lag for more details.
The input signal.
60 dB lag time in seconds.
Output will be multiplied by this value.
This value will be added to the output.