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KMID : 0917520080150030017
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Journal of Speech Sciences
2008 Volume.15 No. 3 p.17 ~ p.28
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Sound Source Localization using Acoustically Shadowed Microphones
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Lee Hyeop-Woo
Yook Dong-Suk
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Abstract
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In many practical applications of robots, finding the location of an incoming sound is an important issue for the evelopment of efficient human robot interface. Most sound source localization algorithms make use of only those microphones that are acoustically visible from the sound source or do not take into account the effect of sound diffraction, thereby degrading the sound source localization performance. This paper proposes a new sound source localization method that can utilize those microphones that are acoustically shadowed from the sound source. The experiment results show that use of the acoustically shadowed microphones, which receive higher signal-to-noise ratio signals than the others and are closer to the sound source, improves the performance of sound source localization.
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KEYWORD
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sound source localization, SRP-PHAT, microphone array
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