Accession Number : ADA139476

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

Descriptive Note : Annual rept. 19 Oct 78-Apr 80,

Corporate Author : INSTITUTE FOR ADVANCED STUDY OF THE COMMUNICATION PROCESSES GAINESVILLE FL

Personal Author(s) : Teas,D C ; Hill,R E ; Dolan,D F ; Walton,J P

PDF Url : ADA139476

Report Date : Apr 1980

Pagination or Media Count : 47

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.

Descriptors :   *Ear, *Cochlea, *Low noise, *Noise(Sound), Low frequency, Intensity, High rate, Probes, Microphones, Humans, Laboratory animals, Frequency

Subject Categories : Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE