Accession Number : AD0622054

Title :   NOISE ATTENUATION CHARACTERISTICS OF THE LEE SONIC EAR-VALV.

Descriptive Note : Special rept.,

Corporate Author : NAVAL SCHOOL OF AVIATION MEDICINE PENSACOLA FLA

Personal Author(s) : Camp,Robert T. ,Jr. ; Tolhurst,Gilbert C.

Report Date : 30 DEC 1958

Pagination or Media Count : 9

Abstract : The noise attenuation characteristics of the Lee Sonic Ear-Valv were obtained by both physical and loudness matching measurements. The results of all tests indicate that the Lee Sonic Ear-Valv attenuates intense and low level continuous sound and/or transient sounds to about the same degree. In other words, it appears to offer no advantages over any other ear plug. The Ear-Valv affords relatively small amounts of overall attenuation to white noise and discrete tone. (Author)

Descriptors :   *NOISE, ATTENUATION, SAFETY EQUIPMENT, EAR, PERFORMANCE(ENGINEERING), TEST METHODS, ACOUSTIC EQUIPMENT.

Distribution Statement : APPROVED FOR PUBLIC RELEASE