A Comparison of Speech Discrimination Ability for Simulated and Real Hearing Loss at 3 and 6 KHZ
NAVAL SUBMARINE MEDICAL RESEARCH LAB GROTON CT
Pagination or Media Count:
Enlisted submariners with high-frequency hearing loss ave. of 22, 45 and 60 decibels at 3, 4 and 6 kiloHertz, respectively performed poorer than a normal-hearing control group by 6.2 percentage points on rather easy tests of speech intelligibility, and by 5 percentage points on rather difficult tests containing speech in background noise. The performance of the hearing-loss group, however, for the easier tests exceeded by 12.7 points that of another normal-hearing control group in which the hearing loss was simulated by filtering. The hearing-loss subjects may be experience have compensated to some extent in easier situations for their defect. This was not true for the more difficult situations.
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