Speech Intelligibility of Aircrew Mask Communication Configurations in High-Noise Environments
Technical Report,01 Dec 2015,31 Jan 2016
US Army Research Laboratory Aberdeen Proving Ground United States
Pagination or Media Count:
Three communication-system configurations were evaluated for speech intelligibility SI when used with the Joint Service Aircrew Mask for Strategic Aircraft and the Intercommunication Unit in high 85 and 95 dBA background noise. Each communication system was used with foam earplugs or additional over-the-ear hearing protection and worn in combination with the protective hood. The goal of this evaluation was to compare communication-system configurations at high noise levels and to determine if the MIL-STD-1472G specifications for minimally acceptable speech intelligibility were being met SI score 75 . The average SI scores for one system exceeded the minimally acceptable requirement, with average scores of 96 and 93 in 85 dBA and 95 dBA, respectively. Results are discussed and recommendations are provided.
- Voice Communications
- Protective Equipment