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Calculation of the intrinsic error in hearing protector ratings.

Authors
Murphy-WJ
Source
NHCA Spectrum 2004 Feb; 21(Suppl 1):27
NIOSHTIC No.
20030381
Abstract
The secondary label of the Noise Reduction Rating (NRR) is required to disclose the mean attenuation and standard deviations for the real ear attenuation at threshold (REAT) measurements. However, the overall error of the NRR has been largely ignored. Using covariant statistics, Monte Carlo simulation and Bootstrap simulation methods, the error in the noise reduction rating has been estimated and applied to several experimental studies.
Keywords
Hearing; Hearing-protection; Noise; Hearing-threshold; Simulation-methods; Statistical-analysis
Publication Date
20040219
Document Type
Conference/Symposia Proceedings; Abstract
Fiscal Year
2004
NTIS Accession No.
NTIS Price
NIOSH Division
DART
Source Name
NHCA Spectrum
State
OH
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