Accession Number : AD0709712

Title :   THE ROLE OF THE PINNA IN SPEECH INTELLIGIBILITY.

Descriptive Note : Final rept. 15 Apr 69-14 Apr 70,

Corporate Author : LABORATORY FOR RESEARCH IN NEUROPSYCHOLOGY INC BOSTON MASS

Personal Author(s) : Freedman,Sanford J.

Report Date : MAY 1970

Pagination or Media Count : 18

Abstract : Nine normal-hearing subjects listening through earphones were required to identify spoken words in a noisy background. Acoustic stimulation was picked up alternately by bare microphones and by microphones equipped with casts of human external ears (pinnae). Test scores and subjective impressions both indicated a highly significant and consistent superiority for the pinna condition. Sound level measurements and sonograms confirmed the superiority of the pinna condition. (Author)

Descriptors :   (*SPEECH, *INTELLIGIBILITY), (*EAR, AUDITORY PERCEPTION), HEARING, IDENTIFICATION

Subject Categories : Psychology
      Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE