Abstract
This letter presents a multiple sound localization method for non-stationary speech sources in reverberant environments. Although zero-crossing-based interaural time differences (ITDs) were robust to diffuse noise and energy-based onset detection tackled reverberant speech , the onset detection method was sensitive to parameters. The proposed method employs echo-free onset detection , and this letter adds reverberation time estimation to obtain accurate echoes and signal-to-noise ratio estimation to assist the onset detection based on typical properties of acoustic reverberation in selecting ITDs corresponding to source locations. Experimental results indicate the effectiveness of the proposed method in reverberant environments.
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