Speech Communication Capability and Hearing Protection of USAF Inflight Headgear Devices

Abstract

In this investigation, both speech intelligibility and hearing protection were determined for various USAF inflight communication headgear devices. Speech intelligibility was measured with talker to listener relationships of quiet to quiet, quiet to noise, noise to quiet and noise to noise. The noise used for both talking and listening was set to 110 dB in each octave band from 63 Hz to 2 kHz and 105 dB in the 4 kHz and 8 kHz octave bands. Speech materials were recorded using both boom (kiss-to-talk) and oxygen mask microphones. The results reveal that many noise exposure conditions now specified as satisfactory for military aircraft may be in the range where adequate speech communication cannot be maintained.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1976
Accession Number
ADA029007

Entities

People

  • Henry C. Sommer

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Biomedical
  • Human Systems

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Aircrafts
  • Ambient Noise
  • Biomedical Research
  • Communication Equipment
  • Governments
  • Headgear
  • Hearing Protection
  • Human Factors Engineering
  • Materials
  • Microphones
  • Noise
  • Oxygen Masks
  • Sound Pressure
  • Specifications
  • Voice Communications

Readers

  • Acoustics.