Research and Development of a Cochlear Microphonic Response to Low-Frequency Noise.

Abstract

An interim report of the status of our study on the effects of high-intensity, low frequency noise is presented. A method has been implemented in which Discrete Fourier Transforms are computed from samples of two analogue waveforms. One source represents input to a system, the other represents the system output. The input spectrum, output spectrum and cross-spectrum are computed. The transfer function is calculated by dividing the averaged cross-spectrum by the averaged input spectrum. Limitations of the method in application to the Cochlear Microphonic are illustrated and the suitability of the method for characterizing the external auditory canal is demonstrated.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1980
Accession Number
ADA139476

Entities

People

  • D. C. Teas
  • D. F. Dolan
  • J. P. Walton
  • R. E. Hill

Organizations

  • Institute for Advanced Study

Tags

Communities of Interest

  • Biomedical
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Acoustic Properties
  • Acoustics
  • Animals
  • Biomedical Research
  • Broadband
  • Discrete Fourier Transforms
  • Distortion
  • Ear
  • Free Field
  • Frequency
  • Frequency Bands
  • Frequency Response
  • Laboratory Animals
  • Plastic Explosives
  • Power Spectra
  • Spectra
  • Transfer Functions

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Image Processing and Computer Vision.
  • Speech Processing/Speech Recognition.