The Influence of Cochlear Snail Shape on Sound Location
The potential effect of the cochlear shape on sound localization is studied from the perspective of signalprocessing. A numerical model has been developed to simulate the sound pressure perceived by the sensory haircells, which supposedly form a sensor array. The cognitive process is presumably approximated by a classicalarray signal processing method. The capabilities of sound localization for the straight cochleae and the spiral shapecochleae are compared by examining the simulated beam patterns. The results demonstrate that the spiral shapecan achieve a better vertical sound localization. The analysis therefore indicates that the cochlear spiral shapecould not only evolve for space conservation but holds physiological benefit.
cochlea beamforming array
Xun Huang Long Bai
College of Engineering, Peking University, Beijing 100871 ,China
国内会议
哈尔滨
英文
1-8
2011-08-22（万方平台首次上网日期，不代表论文的发表时间）