Accession Number : AD0663698

Title :   SUGGESTIONS FOR SPECIFYING ACOUSTIC COUPLERS FOR CALIBRATING INSERT EARPHONES.

Descriptive Note : Memorandum rept.,

Corporate Author : NAVAL SUBMARINE MEDICAL CENTER GROTON CONN

Personal Author(s) : Harris,J. Donald

Report Date : DEC 1967

Pagination or Media Count : 11

Abstract : The wide variety of insert-type receivers demands variability in the design of acoustic couplers which mate such receivers to a standard microphone. Seven such couplers are sketched and described. This information should be useful in specifying the acoustic performance of certain communication systems throughout the Department of Defense, which use in-the-ear receivers, such as those incorporated in helmets, attached to walkie-talkies, capsule systems which use a single in-the-ear transducer as both sender and receiver, and other variations of these systems. (Author)

Descriptors :   (*EARPHONES, *COUPLING CIRCUITS), ACOUSTIC EQUIPMENT, CALIBRATION, SPECIFICATIONS, MILITARY REQUIREMENTS, HELMETS, TRANSDUCERS

Subject Categories : Electrical and Electronic Equipment
      Radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE