Seung Seob Yeom, Jong-suk Choi, Y. Lim, Mignon Park
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DSP implementation of probabilistic sound source localization
This paper describes a DSP implementation of probabilistic sound source localization algorithm. Time delay of arrival (TDOA) between two microphones through cross-correlation method has been used for sound localization in our robot platforms. However, since cross-correlation values are highly dependent on the upcoming sound signal and acoustic environment, time delay values and localization results are easily perturbed. Here, probabilistic method for sound source localization is presented. And its DSP implementation is applied to the pan-tilt robot that we developed.
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