ar follow2 asig, katt, krel
A controllable envelope extractor using the algorithm attributed to Jean-Marc Jot.
asig – the input signal whose envelope is followed
katt – the attack rate (60dB attack time in seconds)
krel – the decay rate (60dB decay time in seconds)
The output tracks the amplitude envelope of the input signal. The rate at which the output grows to follow the signal is controlled by the katt, and the rate at which it decreases in response to a lower amplitude, is controlled by the krel. This gives a smoother envelope than follow.
a1 follow2 ain, 0.01, .1
University of Bath, Codemist Ltd.
New in Csound version 4.03