BENEFITS OF NOISE REDUCTION SYSTEMS IN AUTOMOTIVE RADIOS

While the dynamic range and noise floor in a home environment are sufficient to reproduce reasonably good sound, this is not the case for the automobile environment. Design emphasis should focus on improving the reproduction of weak signals to fill the available dynamic range of a car, rather than on extending the dynamic range of a strong source to rival that available in a living room. Two techniques which offer such improvement are noncomplementary noise reduction systems, equally useful with tape or radio signals, and blending FM stereo modulators. The advent of AM stereo will upgrade the AM source to at least the level of FM stereo. Its success will depend on resolution of the overmodulation noise problem.

• Supplemental Notes:
  • Conference held in Dearborn, Michigan, 15-17 September 1980. Also published in HS-030 396 (IEEE-80CH1601-4; SAE-SP-90), "Convergence 80. IEEE Vehicular Technology Society Annual Conference (30th), International Conference on Transportation Electronics Proceedings" Utica, Michigan, 1980.
• Corporate Authors:

  Institute of Electrical and Electronics Engineers (IEEE)

  Operations Center, 445 Hoes Lane, P.O. Box 1331
  Piscataway, NJ  United States  08855-1331

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • Isbell, T D
  • Giles, M
  • Gross, W H
  • Wright, J W
• Publication Date: 1980

Media Info

• Pagination: 7 p.

Subject/Index Terms

• TRT Terms: Automobiles; Noise; Noise control; Radio equipment
• Uncontrolled Terms: Noise reduction
• Subject Areas: Environment; Safety and Human Factors;

Filing Info

• Accession Number: 00382055
• Record Type: Publication
• Source Agency: National Highway Traffic Safety Administration
• Report/Paper Numbers: IEEE-80CH1601-4, HS-030 464, SAE-SP-90
• Files: HSL, USDOT
• Created Date: Mar 30 1984 12:00AM