Joint Service Aircrew Mask (JSAM) - Tactical Aircraft (TA) A/P22P-14A Respirator Assembly (V)3: Noise Attenuation and Speech Intelligibility Performance with Double Hearing Protection, HGU-55A/P JHMCS Flight Helmet

Abstract

Noise attenuation and speech intelligibility measurements were conducted in accordance with American National Standards Institute (ANSI) S12.6-1997 Methods for Measuring the Real-Ear Attenuation of Hearing Protectors and ANSI S3.2-2009Method for Measuring the Intelligibility of Speech over Communication Systems on the Joint Service Aircrew Mask Tactical Aircraft (JSAM-TA) A/P22P-14A Respirator Assembly (V)3 with the HGU-55A/P Joint Helmet Mounted Cueing System (JHMCS) flight helmet in combination with Communications Earplug (CEP) and 3M EAR Classic foam earplugs. The objective of these measurements was to determine if the JSAM-TA performance requirements were met when double hearing protection was used.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2017
Accession Number
AD1034178

Entities

People

  • Billy Swayne
  • Hilary Gallagher

Tags

Communities of Interest

  • Counter WMD
  • Human Systems

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Aircrafts
  • Attenuation
  • Communication Systems
  • Flight Crews
  • Flight Helmets
  • Hearing Protection
  • Human Factors Engineering
  • Intercommunication Systems
  • Losses
  • Low Noise
  • Measurement
  • Military Aircraft
  • Protective Equipment
  • Standards
  • Tactical Aircraft

Readers

  • Acoustics.
  • Critical Infrastructure Protection in CBRN and WMD Threats.