Joint Service Aircrew Mask - Strategic Aircraft (JSAM-SA): Speech Intelligibility Performance Assessment

Abstract

Speech intelligibility performance measurements were conducted in accordance with ANSI/ASA S3.2 to determine the effect the JSAM-SA had on communications when worn in combination with flight headsets and earplugs. The average speech intelligibility performance for subjects wearing foam earplugs in combination with the JSAM-SA and each selected headset was <80 in a 95 A-weighted decibel (dBA) ambient noise environment. However, the average speech intelligibility performance for subjects wearing communication earplugs in combination with the JSAM-SA and each selected headset was =80 in a 105 dBA ambient noise environment. It is recommended that communication earplugs be included in the hearing protection and communication system when JSAM-SA is required in flight.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2021
Accession Number
AD1133580

Entities

People

  • Hilary L. Gallagher
  • Tyla S Campbell
  • Zachariah N Ennis

Organizations

  • 711th Human Performance Wing

Tags

Communities of Interest

  • Human Systems

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Air Force Facilities
  • Air Force Research Laboratories
  • Aircrafts
  • Ambient Noise
  • Communication Systems
  • Contracts
  • Department Of Defense
  • Education
  • Environment
  • Fighter Aircraft
  • Flight Helmets
  • Government Procurement
  • Governments
  • Handbooks
  • Hearing Protection
  • Human Factors Engineering
  • Measurement
  • Military Research
  • Motor Skills
  • Noise
  • Protective Equipment
  • Speech
  • Standards
  • Tactical Aircraft
  • Voice Communications

Readers

  • Acoustics.