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Convention Paper

A Monolithic -Dolby B- Processor

Authors: Hoeft, W. H.; Gundry, Kenneth J.

AES Convention 47 · Paper H-2 · March 1974

Abstract

The Dolby B-type noise reduction system is widely used in consumer audio equipment. The requirements of the processor circuitry are discussed and the development of an integrated circuit to perform the processing function described. Design emphasis was placed on the elimination of external adjustments. The single monolithic chip contains the main circuit elements of the Dolby B-type system. Included are: four signal amplifiers, combining circuits, rectifier, variable rate integrator, overshoot suppressor, regulator circuitry, and a new highly accurate variable impedance stage.

Details

Published in
AES Convention 47
AES Convention
47
Paper number
H-2
Publication date
March 6, 1974
Affiliation
Signetics Corporation, 811 East Arques Avenue, Sunnyvale, CA ; Dolby Laboratories Inc., 346 Clapham Road, London, England (See document for exact affiliation information.)
Type
Convention Paper