Accession Number : AD0002595


Title :   LOCALIZATION ACCURACY RESULTING FROM ISOLATED BINAURAL STIMULATION


Descriptive Note : Research rept.


Corporate Author : OHIO STATE UNIV RESEARCH FOUNDATION COLUMBUS


Personal Author(s) : TOLHURST, GILBERT C


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/002595.pdf


Report Date : 05 Jan 1953


Pagination or Media Count : 22


Abstract : Judgments of the apparent azimuth of 5 different types of sound stimuli (pure tone, sustained vowel, continuous speech, music, and white noise), given in six 5-sec presentations each over a dual-channel stereo-phonic system, were made by 205 subjects. The microphones e=were mounted on a turntable which rotated through 360 deg and separated to simulate intra-aural distance. The subjects were unable to localize the 5 sound types within a full quandrant of + or - 45 deg, but music was localized within a quandrant better than chance. There were significant differences between localization frequency when the correct criterion was + or - 90 deg. Sixteen per cent of all responses were 18 deg away from the stimulus sounds.


Descriptors :   *DIRECTION FINDING , *AUDITORY PERCEPTION , WHITE NOISE , RESPONSE , SOUND , SPEECH , STIMULI , MICROPHONES , MUSIC , VOWELS


Subject Categories : Human Factors Engineering & Man Machine System


Distribution Statement : APPROVED FOR PUBLIC RELEASE