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Journal Article

Linear-Phase Bandsplitting: Theory and Applications

Authors: Moorer, James A.; Berger, Mark

Journal of the Audio Engineering Society · Volume 34 · Issue 3 · pp. 143–152 · March 1986

Abstract

There are a number of applications for banks of band-pass filters in professional audio studios for both film and music production. Digital techniques for bandsplitting are explored which have the property that the spectrum may be separated into a number of bands such that when these bands are added back together, the result is a pure delay. There need be no amplitude or phase distortions other than delay. This allows such applications as linear-phase graphic equalizers, multiband noise gates, and many other improvements over conventional studio equipment. These algorithms have been implemented on a large-scale audio signal processor and run in real time. They are currently being used in major motion picture production.

Details

Publication
Journal of the Audio Engineering Society
Volume
34
Issue
3
Pages
143–152
Publication date
March 6, 1986
Affiliation
Lucasfilm Ltd, San Rafael, CA (See document for exact affiliation information.)
Type
Journal Article