Accession Number : AD0765903
Title : A Study of the Conversion of dBA to Equivalent Octave Band Pressure Level Contours for Shipboard Spaces.
Descriptive Note : Technical rept.,
Corporate Author : ANDRULIS RESEARCH CORP BETHESDA MD
Personal Author(s) : Magrab,Edward B. ; Andrulis,Marilyn W.
Report Date : JUN 1973
Pagination or Media Count : 37
Abstract : A technique for converting dBA to equivalent octave band pressure level contours has been developed based on the statistics of the available space data of the DLG-12, LCC-20 and AKA-113 type surface ships. For the available data, it is shown that there is no statistically significant difference between measured dBA values, obtained directly by an A-weighted sound level meter, and calculated dBA values, obtained by exercising an algorithm which approximates the A-weighted filter of a sound level meter. (Author)
Descriptors : (*ACOUSTICS, SPECTRUM SIGNATURES), (*NAVAL VESSELS, *SHIP NOISE), (*NAVAL VESSELS, SHIP NOISE), SOUND, PRESSURE, ALGORITHMS, ACOUSTIC PROPERTIES
Subject Categories : Marine Engineering
Air Breathing Engines(unconventional)
Distribution Statement : APPROVED FOR PUBLIC RELEASE