Comb Filter

A distortion produced by combining an electrical or acoustical signal with a delayed replica of itself.

The result is constructive and destructive interference that results in peaks and nulls being introduced into the frequency response. When plotted to a linear frequency scale, the response resembles a comb, hence the name.

Flanging

The term applied to the use of comb filters to obtain special sound effects.


See also: Electronic Filter.

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Subjects: Signal Processing