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Dolby Noise Reduction in Automotive Applications
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English
Abstract
In the past decade, the high frequency response of automotive tape playback equipment has been extended, the efficiency of loudspeakers has increased and the cost of high power amplifiers has been reduced. Consequently, tape noise can be a significant problem when listening in the car. This paper discusses the design philosophy of the Dolby B-type and C-type noise reduction systems that are now widely used throughout the in-car entertainment industry to overcome the tape noise problem. Information relating to basic tape parameters, to other approaches to noise reduction and to noise reduction system defects is also included.
Authors
Citation
Hardcastle, I., "Dolby Noise Reduction in Automotive Applications," SAE Technical Paper 840086, 1984, https://doi.org/10.4271/840086.Also In
References
- Dolby, R. M. “An Audio Noise Reduction System,” Journal of the Audio Engineering Society October 1967
- [illegible]erkovitz, R. Gundry, K. J. “Dolby B-type Noise Reduction System.” Audio September and October 1973
- Dolby, R. M. “A 20 dB Audio Noise Reduction System for Consumer Applications.” Journal of the Audio Engineering Society March 1983
- Hardcastle, I. “Commercializing the Dolby System.” Journal of the Licensing Executives Society December 1983