Accession Number : AD0782234

Title :   Audio Transducer Study.

Descriptive Note : Final technical rept. 1 Jul 72-28 Feb 74,

Corporate Author : TELEPHONICS HUNTINGTON N Y

Personal Author(s) : Joscelyn,Edwin ; Cohen,Abraham ; Fraim,Fremann

Report Date : JUN 1974

Pagination or Media Count : 143

Abstract : This document covers the technical detail in the work performed to date on the development of state-of-the-art contact microphones, electret airpath microphones, and dynamic airpath microphones, small dynamic and electret earphones, and a small lightweight loudspeaker. These transducers are to be small, lightweight, have low visibility, employ hands free operation, and not interfere with the user's senses. (Modified author abstract)

Descriptors :   *Microphones, *Electrets, Electroacoustic transducers, Miniaturization, Thin films, Loudspeakers, Lightweight, Reviews

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE