Effects of integrated hearing protection headsets on the quality of radio communications

Effets des casques d’écoute munis d’un dispositif intégré de protection de l’ouïe sur la qualité des communications radio

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Authors
  1. Nakashima, A.
  2. Abel, S.M.
Corporate Authors
Defence R&D Canada - Toronto, Toronto ONT (CAN)
Abstract
The speech intelligibility of a personal role radio (PRR) with integrated hearing protection headsets (IHPH) was investigated. The standard PRR communication headset is comprised of a one-sided earcup and a boom microphone, and does not provide hearing protection. IHPH devices provide simultaneous hearing protection, communication and enhanced hearing capability. Two different tests of speech intelligibility were used (modified rhyme test [MRT] and speech perception in noise [SPIN]) to evaluate the quality of radioed speech over the standard PRR headset (SH), the Nacre QuietPro® (QP) and the Silynx QuietOpsTM (QO). The highest scores on the MRT and SPIN tests in background noise were obtained using the SH, followed by the QP and the QO. However, the QP was given a higher total user acceptance rating score than the SH. Both the QP and SH were rated relatively higher than the QO. Given that hearing protection will be required in most operational environments, the QP provided the best combination of speech quality, hearing protection and usability.

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Keywords
Hearing;Hearing protection;Speech intelligibility;Personal Role Radio;PRR;Integrated Hearing Protection Headsets (IHPH);Modified Rhyme Test;MRT;Speech Perception in Noise Test;SPIN
Report Number
DRDC-TORONTO-TR-2009-074 — Technical Report
Date of publication
31 Jul 2009
Number of Pages
36
DSTKIM No
CA034569
CANDIS No
534063
Format(s):
Electronic Document(PDF)

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