Psychoacoustic and Electrophysiologic Studies of Hearing Under Hyperbaric Pressure.

Abstract

Work performed includes: calibration of laboratory standard Type-L condenser microphones to a simulated depth of 990 feet (31 ATA); Calibration of standard audiometric earphones to a simulated depth of 990 feet (31 ATA); and, measurement of human auditory thresholds during deep, saturation dives in helium-air. Human threshold data were collected at numerous depths during compression and decompression for air conduction and bone conduction to a simulated depth of 990 feet (31 ATA). Electrophysiological measurements were recorded from experimental animals under similar conditions. (Modified author abstract)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1973
Accession Number
AD0761212

Entities

People

  • Joseph C. Farmer
  • William G. Thomas

Organizations

  • University of North Carolina at Chapel Hill

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Animals
  • Calibration
  • Compression
  • Decompression
  • Earphones
  • Laboratory Animals
  • Measurement
  • Microphones
  • Saturation
  • Standards

Readers

  • Auditory Neuroscience/Auditory Physiology.
  • Fluid Dynamics.
  • Underwater engineering and Marine Technology.