Research of HRTF Character of Head-mounted Microphone Array
Head-mounted microphone array has practical applications in robot acoustic localization system and wearable anti-sniper positioning system.Usually,sound source localization methods are based on linear or nonlinear unblocked microphone arrays.But head-mounted microphone array is a kind of blocked arrays,with which it needs information of Head Related Transfer Function (HRTF) for precise localization.In this paper,we research the HRTF character of head-mounted microphone array for localization in high frequency band and low frequency band respectively,and design a localization algorithm for low frequency sound based on head-mounted microphone array to analysis the threshold between high and low frequency.Experimental results show that the Head-mounted Microphone Array causes diffraction effect for low frequency sound,and amplitude attenuation effect for high frequency sound,and when the low frequency band is limited into 1 KHz,the localization algorithm for low frequency realizes the best performance.
Head-mounted microphone array Diffraction path Head Related Transfer Function Sound localization
Yi Zhang Baobin Shen Shujie Meng
Information Engineering College, University of Dalian, Dalian, China
国际会议
重庆
英文
479-483
2015-03-21（万方平台首次上网日期，不代表论文的发表时间）