Accession Number : AD0164902

Title :   Earphone Receiver Attenuation Measurement Technique.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Tegt,Richard P. ; Robertson,Douglas G. ; Blattel,Thomas V.

Report Date : 24 APR 1973

Pagination or Media Count : 4

Abstract : The patent describes a system for measuring the effectiveness of the sound attenuating function of an earphone sound attenuation cover. It uses the earphone transducer as a microphone and measures the noise level with the ear cover in place on the user's ear and with the cover removed, the difference in decibels being interpreted as the acoustic attenuation provided by the ear cover.

Descriptors :   *Earphones, *Attenuation, *Patents, Measurement

Subject Categories : Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE