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Conference Paper

Digitally-Controllable Audio Filters and Equalizers

Authors: Hebert, Gary K.; Floru, Fred

AES Conference: 13th International Conference: Computer-Controlled Sound Systems · Paper 13-031 · December 1994

Abstract

Filters are commonplace elements in audio signal processing. Most well-known filter topologies generate fixed responses with fixed element values, or use variable resistors to alter their responses under user control. This paper explores solutions to varying the response of filters and equalizers using digital-control techniques suitable for computer-controlled systems. High-pass, low-pass, band-pass, band-reject, and parametric topologies are covered using VCAs, resistor ladders, and multiplying DACs as control elements.

Details

Published in
AES Conference: 13th International Conference: Computer-Controlled Sound Systems
Paper number
13-031
Publication date
December 6, 1994
Session subject
Computer-Controlled Sound Systems
Affiliation
THAT Corporation, Marlborough, MA (See document for exact affiliation information.)
Type
Conference Paper