We study sound source localization in near field. In the research into sound source localization, 2D-MUSIC has already been developed. However, problematically its performance degrades in diffused noisy environments. The localization method based on CSP in near field has already been developed. However, the localization accuracy depends on the estimation accuracy for time delay between paired microphone. We have proposed 2D-CSP with multiple channel microphones for robustly localization. We carried out the evaluation experiment in a conference room. As a result of experiment, we confirmed that the proposed method can robustly localize a sound source more than conventional methods.
Bibliographic reference. Hayashida, Kohei / Morise, Masanori / Nishiura, Takanobu (2010): "Near field sound source localization based on cross-power spectrum phase analysis with multiple microphones", In INTERSPEECH-2010, 2758-2761.