Accession Number : AD0639104

Title :   AN INVESTIGATION OF LISTENER ACCURACY IN AN ENVIRONMENT OF RELEVANT CONFLICTING VOICE SIGNALS.

Descriptive Note : Technical rept.

Corporate Author : PURDUE UNIV LAFAYETTE IND

Personal Author(s) : Asher,J. W. ; Hanley,T. D. ; Steer,M. D.

Report Date : 13 DEC 1954

Pagination or Media Count : 26

Abstract : The present investigation makes use of the general design of the combat information center to test the influence of four situational aspects on the information conveying efficiency of the system. The four factors tested were the location of loudspeakers and the intensity levels at which the speakers operate, the position of the message source with respect to the bodily orientation of the listener, and the specific codeword which identified for the listener the message to which he was to respond. Spatial separation of loudspeakers resulted in higher listener scores than in the banked speaker position. Higher listener scores were obtained with a playback intensity level of 60 db than with a level of 75 or 90 db. There were significant differences in listener scores when the codewords identifying the messages differed. There were no significant differences in listener scores when the subject's left or right shoulder was facing the speaker. However, when the subject faces the speaker, listening scores are significantly improved. (Author)

Descriptors :   (*VOICE COMMUNICATIONS, HUMAN FACTORS ENGINEERING), (*SPEECH, *INTELLIGIBILITY), POSITIONING REACTIONS, AUDITORY PERCEPTION, COMBAT INFORMATION CENTERS, INTENSITY, AUDITORY PERCEPTION, SIGNALS

Subject Categories : Psychology
      Voice Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE