首页|Sound Source Localization Algorithm for Low-frequency Signal's Diffraction Path Based on a Head-worn Microphone Array
Sound Source Localization Algorithm for Low-frequency Signal's Diffraction Path Based on a Head-worn Microphone Array
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NETL
NSTL
Sound source localization system based on microphone array has practical applications in the field of video conferencing, human-computer interaction, etc. In most of sound source localization system, microphone arrays are unblocked; sound wave can propagate to the microphones directly. In this paper we consider a kind of blocked microphone array-head-worn microphone array, and utilize additional spatial information generated by block effect of head-worn helmet to estimate the direction angle of source. In this article, we propose an angle estimation algorithm based on time delay compensation of diffraction path, which can estimate the time difference of arrival between head-worn microphones according to the diffraction effect of helmet on low frequency sound signals. Experiments show that for the head-worn microphone array, the sound source localization algorithm we proposed based on the diffraction path of low-frequency signal can accurately estimate the direction angle of sound source.
NETL
NSTL
