Noise measurement systems have, by necessity, undergone dramatic changes during the development years to keep pace with requirements. Current system designs provide calibrations traceable to NBS, increased sampling speeds, better resolution, more accurate and repeatable test results and meet the need of processing large amounts of data in short time periods. There have been improvements in the measurement of the environmental conditions affecting the noise and changes to the physical characteristics of test facilities to reduce ground reflections and minimize obstacles impeding the noise path.

  • Supplemental Notes:
    • 22nd Annual Technical Meeting of the Institute of Environmental Sciences, Proceedings, Environ Technology '76 Philadelphia, Pennsylvania, 26-28 April 1976.
  • Corporate Authors:

    Institute of Environmental Sciences

    940 East Northwest Highway
    Mount Prospect, IL  United States  60056
  • Authors:
    • Andrews, J J
  • Publication Date: 1976

Media Info

  • Pagination: p. 110-115

Subject/Index Terms

Filing Info

  • Accession Number: 00158238
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Aug 31 1977 12:00AM