Accession Number:

AD0777518

Title:

Audio Transducer Research.

Descriptive Note:

Semiannual technical rept. 29 Jun-31 Dec 73,

Corporate Author:

GEORGIA INST OF TECH ATLANTA ENGINEERING EXPERIMENT STATION

Report Date:

1974-02-01

Pagination or Media Count:

46.0

Abstract:

Audio transducers based on the piezoresistive and stressed-transistor principles were investigated for possible use in future tactical communications systems. The goal is to develop small low visibility, light weight, hands-free microphones that can operate satisfactorily in a high noise environment. Although air-pathway noise-cancelling devices are also to be considered, the study focussed on speech pickup through the surface of the head or neck by means of either pressure microphones using air as a coupling medium or vibration transducers using an elastomeric coupling, or more direct contact with the skin. Modified author abstract

Subject Categories:

  • Electrical and Electronic Equipment
  • Non-Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE