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Journal Article

Dolby B-Type Noise Reduction for FM Broadcasts

Authors: Robinson, David P.

Journal of the Audio Engineering Society · Volume 21 · Issue 5 · pp. 351–356 · June 1973

Abstract

FM broadcasting (as originally conceived) is capable of producing very high quality audio performance. Unfortunately, stereo transmissions degrade the signal-to-noise ratio by more than 20 dB. Under noisy reception conditions, this results in demodulated signals which do not compare favorably with other home entertainment sources. It is shown that the use of Dolby B-type noise reduction in FM transmission allows the signal-to-noise ratio to be improved significantly. Experimental results are presented, and a brief outline is given of the results of full-time broadcasting in New York.

Details

Publication
Journal of the Audio Engineering Society
Volume
21
Issue
5
Pages
351–356
Publication date
June 6, 1973
Affiliation
Dolby Laboratories, Inc., New York, NY and London (See document for exact affiliation information.)
Type
Journal Article