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A study on the effect of leading sound and following sound on sound localization  

Lee, Chai-Bong (동서대학교)
Publication Information
Journal of the Institute of Convergence Signal Processing / v.16, no.2, 2015 , pp. 40-43 More about this Journal
Abstract
In this paper, the effects of the leading and the following sounds with single frequency on sound localization are investigated. The sounds with different levels and ISIs(Inter Stimuli Intervals) were used. The width of test sound is 2ms, and those of the leading and the following sounds are 10ms. 1 kHz of the test sound is utilized. The arrival time difference in the subject's ears is set to be 0.5ms. The four kinds of level differences used for one ISI are 0, -10, -15, and -20dB interval. The leading sound is found to have more effect on sound localization than the following sound is. The effect of the leading sound is also found to be dependent on the value of ISI. When the value of the ISI is small, different effects affecting the sound localization are observed.
Keywords
Sound Localization; Inter Stimuli Interval(ISI); Following Sound; Leading Sound; Interaural Time Difference(ITD); Masking Effect; Level Difference;
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