REAL-EAR SOUND ATTENUATION CHARACTERISTICS OF CBS LABORATORIES' MARK II EARPHONE INCLOSURES

Abstract

The real-ear attenuation characteristics of the CBS Laboratories' MARK II earphone inclosures were determined by standard procedures and equipment. The inclosures were mounted in an Army APH-5 helmet. The results of the tests show that the MARK II earphone inclosures do improve the attenuation characteristics of the APH-5 at frequencies from 75 to 500 Hz.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1969
Accession Number
AD0693261

Entities

People

  • Robert T. Camp Jr.
  • Ronald F. Kovacs

Organizations

  • United States Army Aeromedical Research Lab

Tags

Communities of Interest

  • Air Platforms
  • Biomedical
  • Human Systems
  • Weapons Technologies

DTIC Thesaurus Topics

  • Amplifiers
  • Attenuation
  • Attenuators
  • Aviation Personnel
  • Classification
  • Earphones
  • Frequency
  • Human Factors Engineering
  • Instrumentation
  • Loudspeakers
  • Measurement
  • Oscillators
  • Power Amplifiers
  • Security
  • Sound Pressure
  • Standards
  • Statistical Analysis

Readers

  • Acoustics.
  • Atmospheric Remote Sensing.
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