Near Field Sound Source Localization Based on Cross-power Spectrum Phase Analysis with Multiple Microphones

摘要

We study sound source localization in the near field. In sound source localization research, 2D-MUSIC has already been developed. However, its performance degrades in diffused noisy environments. A localization method based on CSP in the near field has already been developed. However, localization accuracy depends on the accuracy of the estimation of the time delay between paired microphones. To overcome these problems, we have developed 2D-CSP with multiple microphones for robust localization. We carried out the evaluation experiment in a conference room. The proposed method could localize sound sources more robustly than conventional methods.