SOUND BARRIERS TO CONTROL NOISE

Two alternative methods can be adopted to reduce the noise level in the immediate vicinity of a noise source <1> eliminate the cause at source, or <2> take action along the noise propagation path from the source to the receiver. A combination of both methods is sometimes necessary. Acoustical enclosure of the noise-emitting ensures a high degree of sound insulation and can be augmented by sound barriers <movable screens> when unusual high-noise sources have to be dealt with or when a full enclosure is not feasible. This paper develops a rapid method for evaluating the sound-deadening properties of a screen used indoors, when the acoustic characteristics of the premises are fairly well known.

• Supplemental Notes:
  • Noise & Vibration Control, 14 <1983>, p. 195 <Sept.> (3 pp., 3 ref., 2 diag., 4 graphs, 1 phot.)
• Publication Date: 1983

Language

• English

Subject/Index Terms

• Subject Areas: Marine Transportation;

Filing Info

• Accession Number: 00687162
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM