Zero-Crossing Based Sound Source Localization in Reverberant Conditions

Abstract

Localization is a main issue in the research of auditory signal process. ITD and IID are very useful for localization and we can localize sound sources easily in anechoic condition using them. But in reverberant condition, most of ITDs and IIDs are contaminated and it results in difficulties of localizing in reverberant condition. We try to get over this difficulties using Precedence effect which is a very famous phenomenon in acoustics and psychophysics. We apply this effect to our zero-crossing based localizing model and we suggest an eliminated histogram by Precedence effect and prove it effective for one-source localizing problem in reverberant condition.