Effect of Hypoxia on Speech Recognition in Noise

Abstract

Speech-to-babble ratios for 50% word recognition were measured in four men, age 30 to 35, while breathing 12% and 21% oxygen. There were no differences between the two conditions. Learning effects, however, were seen for the task. As the 12%-oxygen level is considerably lower than would be used for routine reduction of fire hazards onboard submarines, reduced oxygen levels at the intermediate levels being considered should not affect speech recognition. Keywords: Background noise.

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Document Details

Document Type
Technical Report
Publication Date
Mar 16, 1987
Accession Number
ADA193943

Entities

People

  • Lynne Marshall

Organizations

  • Naval Submarine Medical Research Laboratory

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Automated Speech Recognition
  • Background Noise
  • Biomedical Research
  • Classification
  • Fire Hazards
  • Frequency
  • Hazards
  • Hearing Disorders
  • Hearing Loss
  • Measurement
  • Monitoring
  • Noise
  • Recognition
  • Security
  • Sound Pressure
  • Tape Recorders
  • Tape Recording

Readers

  • Fire Suppression Systems Design.
  • Mathematics or Statistics
  • Speech Processing/Speech Recognition.

Technology Areas

  • AI & ML