THE ROLE OF THE PINNA IN SPEECH INTELLIGIBILITY.

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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

Author(s):
Freedman, Sanford J.
Author Organization(s):
LABORATORY FOR RESEARCH IN NEUROPSYCHOLOGY INC BOSTON MASS
Descriptive Note:
Final rept. 15 Apr 69-14 Apr 70,
Pagination:
0018

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AFOSR-70-2043TR
Contract/Grant Number(s):
F44620-69-C-0064
Project Number(s):
AF-9777
Monitor Series:
70-2043TR
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*SPEECH, *INTELLIGIBILITY), (*EAR, AUDITORY PERCEPTION), HEARING, IDENTIFICATION
Field(s)/Group(s):
Psychology, Non-Radio Communications
Report Date:
1970 May 01