Simulation Studies for Comparison of Bone-conducted Ultrasound and Bone-conducted Audible Sound
Bone-conducted ultrasound (BCU) has been used to develop a bone-conducted ultrasonic hearing aid (BCUHA) since it was reported that normal-hearing humans as well as some profoundly deaf people can perceive ultrasound through bone conduction (BC). In order to make a comparison between BCUHA and the conventional bone-conducted hearing aid (BCHA), Finite Difference Time Domain (FDTD) method is used to calculate the sound field in human head for both BCU and BC audible sound. The study shows that BCU stimulus is more efficient in transmitting sound to both cochleae than the BC audible sound stimulus, suggesting that BCUHA performs better than BCHA .
ultrasound bone conduction hearing aid FDTD.
Yishan Luo Yuanyuan Wang Weiqi Wang
Department of Electronic Engineering, Fudan University, Shanghai 200433, China
国际会议
北京
英文
1574-1577
2007-05-23（万方平台首次上网日期，不代表论文的发表时间）