The Effects of Time-Varying Noise on Speech Intelligibility Indoors.

Abstract

This report summarizes the effects upon speech intelligibility of both steady-state time-varying noise, particularly time-varying aircraft and traffic noises. Though no present measure adequately predicts this effect, the articulation index (AI) is recommended as the best available. In the classroom an AI of 0.4 is considered a minimum requirement for instruction and ideally, an AI of 0.7 or greater is recommended, especially under time-varying noise conditions. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1981
Accession Number
ADA098239

Entities

Organizations

  • National Research Council

Tags

Communities of Interest

  • Air Platforms
  • Biomedical

DTIC Thesaurus Topics

  • Aircraft Noise
  • Aircrafts
  • Background Noise
  • Classification
  • Computational Science
  • Contractors
  • Governments
  • Human Factors Engineering
  • Instructions
  • Instructors
  • Intelligibility
  • Language
  • Psychology
  • Speech
  • Standards
  • Steady State
  • United States Government

Readers

  • Acoustics.
  • Instructional Design and Training Evaluation.
  • Speech Processing/Speech Recognition.