Characterizing Noise Fields in Shipboard Spaces
Abstract
Three methods of characterizing discrete tone sound fields were tested in a reverberant compartment. Method one uses sound field mapping, method two implements an integrating sound level meter, and method three uses personal noise dosimetry. Sound field mapping resulted in a detailed and accurate visual representation of the sound field, but because the procedure is both complicated and time consuming, it is not appropriate for day-today analysis of compartments. The dosimetry measurements were erratic and did not compare well with the sound field mapping measurements. The dosimeters were influenced by the extraneous noise produced by the activities of the test subjects wearing the dosimeters. Consequently, personal noise dosimetry cannot be considered a reliable method for characterizing sound fields for the conditions of this test. An integrating sound level meter combines the accuracy of the sound field maps with the simplicity of operation of the personal noise dosimeters. A single number was attainable that was representative of the noise hazard associated with discrete tones in reverberant compartments. Acoustic habitability standards, Intense tones, Sound field mapping, Ship's spaces.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 29, 1993
- Accession Number
- ADA264464
Entities
People
- Robert J. Sylvester
Organizations
- Naval Submarine Medical Research Laboratory