Waldorf Largo - Manual (Page 76)

Appendix
Largo User´s Manual 76
The Comb Filter Types
The Comb filter types differ from the other filter types
greatly, because they don’t actually damp any part of the
signal, but instead add a delayed version of the input
signal to the output. What exactly is a Comb filter?
A Comb filter is basically a very short delay that can be
controlled in length and feedback. The delay time is so
short that you can’t hear its individual taps but a
colorization of the original signal created by peaks or
holes in the frequency spectrum. The frequency of the
colorization is set by the delay length, which is controlled
in the Largo through Cutoff, while the amount of
colorization is set by the Comb filter feedback, which is
controlled in the Largo through Resonance.
Comb+ Filter Type
Frequency
Level
Cutoff determines number of teeth
Resonance