HUMAN HEARING AND SPEECH DURING WHOLE-BODY VIBRATION

Abstract

Binaural thresholds for four tones (500, 1000, 2000, and 4000 cycles per second) and tape recordings of spoken messages were obtained from eight subjects under various conditions of vertical sinusoidal vibration. The vibration frequencies ranged from 1 to 27 cps and were presented at four subjective reaction levels. These data were systematically compared to control data obtained when no vibration was present. Hearing thresholds were significantly affected by vibration, but the effects were variable from subject to subject and from tone to tone. Rated judgments of change in intelligibility and speech ''pattern'' were inconclusive because of a lack of spread in the ratings.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1963
Accession Number
AD0410259

Entities

People

  • Robert J. Teare

Organizations

  • Boeing

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Amplifiers
  • Analysis Of Variance
  • Audiometry
  • Environment
  • Frequency
  • Generators
  • Instructions
  • Judgment
  • Measurement
  • Military Aircraft
  • Recording Systems
  • Sequences
  • Signal Generators
  • Sound Pressure
  • Tape Recording
  • Vibration

Readers

  • Acoustics.
  • Brain and Cognitive Science; Experimental Psychology; Cognitive Neuroscience
  • Speech Processing/Speech Recognition.