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Investigations on Perceptual Phenomena of the Precedence Effect Using a Bessel Sequence

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The precedence effect is typically investigated by presenting two instances of a sound with delay in between. Respective studies found various phenomena indicating that in human auditory localization the contribution of the first sound instance often prevails over a later sound or an acoustic reflection. In reverberant environments, the direct sound is typically followed by more than one reflection. Nevertheless, only little is known about the contribution of multiple reflections on the precedence effect. Understandably, a free number of sound instances increases the number of thinkable conditions drastically and an exhaustive systematic investigation appears infeasible. Directionally distributed impulses weighted by a Bessel sequence offer a neat set of free parameters. We chose this scheme to gain quantitative insights into the influence of multiple reflections on the precedence effect. Our study covers the transient precedence effect, the ongoing precedence effect, and the onset capture effect, which we investigate using sounds of different envelope, frequency range, angular and temporal spread.

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Permalink: http://www.aes.org/e-lib/browse.cfm?elib=18632

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