Sound attenuation of earmuffs under conditions of impulsive noise—laboratory measurements

✍ Scribed by F.B. Shenoda; H. Ising; R. Fischer

• Book ID: 102989128
• Publisher: Elsevier Science
• Year: 1987
• Tongue: English
• Weight: 720 KB
• Volume: 21
• Category: Article
• ISSN: 0003-682X
• DOI: 10.1016/0003-682x(87)90051-x

✦ Synopsis

The attenuation of earmuffs for high level impulsive noise was measured on a human head in (1) an anechoic room and (2) a reverberation room. Different definitions of the effective attenuation of impulse noise are discusser The measurements showed that the sound attenuation of an earmuff in a reverberation field is higher than in the free field at comparable impulsive noise levels. A non-linearity caused by the cushion leads to a decrease of the attenuation with increasing peak level.