| Autor: |
Cameron J. Fackler, William J. Murphy, Dan Gauger, Elliott H. Berger |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
The Journal of the Acoustical Society of America. 152:A162-A162 |
| ISSN: |
0001-4966 |
| DOI: |
10.1121/10.0015889 |
| Popis: |
ANSI/ASA S12.42-2010 contains the first standardized test method for measuring the performance of hearing protection devices (HPDs) with high-level impulsive noise. This standard defines the impulsive peak insertion loss (IPIL) as a time-domain metric that quantifies the reduction in peak sound pressure level provided by an HPD for impulsive noises. However, IPIL as defined in S12.42-2010 is dependent on the spectrum of the impulsive noise source used for measurements of HPDs. Recent studies of HPDs with impulsive noise have led to the investigation of frequency-domain metrics and calculation methods. Using frequency-domain calculations allows IPIL to be computed for a wide range of impulsive noises, not only those used for the measurement. Consequently, significant revisions to S12.42 are under consideration. This presentation highlights select proposals including: definition and calculation of the frequency-dependent impulsive insertion loss, incorporation of frequency-domain aspects such as bone-conduction limits to attenuation, and redefinition of IPIL to be calculated from the impulsive insertion loss. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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