Accession Number : AD0639966

Title :   THE SIGNIFICANCE OF VARIANCES IN THE REAL-EAR SENSITIVITY OF A CIRCUMAURAL EARPHONE,

Corporate Author : DEFENCE RESEARCH MEDICAL LABS TORONTO (ONTARIO) SENSORY CAPACITIES SECTION

Personal Author(s) : Forshaw,S. E.

Report Date : 08 FEB 1966

Pagination or Media Count : 6

Abstract : The variations in the real-ear sensitivity of a circumaural earphone due to individual differences in the acoustical impedance of the ear were determined. The results indicated that between-subject variances were significant in the one-third octave bands between 800 and 2500 c/s. At higher frequencies the experimental error of the measurements increased so that between-subject variances, although larger than the mid-frequency values, were not statistically significant. (Author)

Descriptors :   (*EARPHONES, ACOUSTIC IMPEDANCE), EAR, SENSITIVITY, HUMAN FACTORS ENGINEERING, AUDIO FREQUENCY, ANALYSIS OF VARIANCE, CANADA

Subject Categories : Electrical and Electronic Equipment
      Human Factors Engineering & Man Machine System

Distribution Statement : APPROVED FOR PUBLIC RELEASE