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6.3 Cut Filters
Critical
“Critical Damped” filters simulate a chain of passive analogue RC
(for high-cut) and CR (for low-cut) stages fixing a behaviour similar
to a series of RC elements in vintage analogue equipment.
Bessel
Linear
Phase behaviour leads to no overshoot or ringing resulting
from a sudden transition between signal levels. The
drawback is a sluggish roll-off rate.