A Comparison of Speech Discrimination Ability for Simulated and Real Hearing Loss at 3 and 6 KHZ

Abstract

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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Document Details

Document Type
Technical Report
Publication Date
Jul 28, 1972
Accession Number
AD0757338

Entities

People

  • Russell L. Sergeant
  • Thomas Murry

Organizations

  • Naval Submarine Medical Research Laboratory

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Ambient Noise
  • Automated Speech Recognition
  • Background Noise
  • Biomedical Research
  • Frequency
  • Hearing Disorders
  • Hearing Loss
  • Human Factors Engineering
  • Intelligibility
  • Naval Personnel
  • Navy
  • Noise
  • Tape Recorders
  • Test And Evaluation
  • Test Methods
  • United States
  • Voice Communications

Readers

  • Acoustics.
  • Psychometric Testing or Psychological Assessment.
  • Regression Analysis.