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Title:

The Impact of A-Weighting Sound Pressure Level Measurements during the Evaluation of Noise Exposure

Accession Number:

01054316

Record Type:

Component

Availability:

Institute of Noise Control Engineering

Iowa State University, 210 Marston Hall
Ames, IA 50011-2153 United States

Abstract:

This paper describes how there have been large advances in the ability to measure sound and understand its effects on humans since the 1930s. Despite this, a vast majority of acoustical measurements that are done today still use the methods originally developed 70 years ago. The use of A-Weighted sound pressure measurements is so common that their use is rarely questioned, even by those taking the measurements. This paper recounts the initial development of sound weighting curves in order to show the original intent of the weighting curves. Then, research into discrepancies between A-Weighted sound levels and subjective evaluations will be done along with detailing research that shows effects of noise that are not obvious using the A-Weighting scale. Finally, some alternate methods of measuring and reporting sound will be discussed in the paper.

Monograph Accession #:

01054353

Language:

English

Corporate Authors:

Institute of Noise Control Engineering

Iowa State University, 210 Marston Hall
Ames, IA 50011-2153 United States

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Richard L St Pierre Jr
Maguire, Daniel J

Editors:

Burroughs, Courtney B
Maling, George C

Pagination:

pp 702-708

Publication Date:

2004

Conference:

Noise-Con 04. The 2004 National Conference on Noise Control Engineering

Location: Baltimore Maryland, United States
Date: 2004-7-12 to 2004-7-14
Sponsors: Institute of Noise Control Engineering; Transportation Research Board

Media Type:

CD-ROM

Features:

Figures (2) ; References (35)

Uncontrolled Terms:

Subject Areas:

Energy; Environment; Highways; Safety and Human Factors; I15: Environment

Files:

TRIS, TRB

Created Date:

Jul 25 2007 6:04PM