Abstract
A clinical test of auditory localization ability was administered to 45 normal hearing subjects. The subjects were seated in the center of a circular array of seven ceiling-mounted speaker assemblies. They were required to identify the speaker through which each of a series of 24 presentations of the stimulus “where is this?” was directed. The localization test was performed employing three stimulus presentation levels of 5, 10, and 15 dB SL, re sound-field SRT, and three speaker placements which had radii of 2′7″, 4′, and 5′ from the center of the audiometric test booth. Localization ability improved as the presentation level and speaker placement increased, reaching a maximum mean score of 76% at 15 dB SL and a 5′ speaker radius. The results agreed with previous findings [F. Malpica, M.S. paper (Penn State, 1976) (unpublished)] but did not agree with the results obtained in the initial Investigation of this localization test [G. R. Bienvenue and B.S. Siegenthaler, J. Speech Hear. Disord. 39, 469–477 (1974)].
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