题目/Title：A time-frequency aware cochlear implant: algorithm and system

作者/Author：
                        Songping Mai,Yixin Zhao,Chun Zhang,Zhihua Wang

会议/Conference：ISNN 2012

地点/Location：Shenyang, China

年份/Issue Date：2012.11-14 July

页码/pages：pp. 159 - 168

摘要/Abstract：
A time-frequency aware (TFA) cochlear implant system and its speech processing strategy (TFA-CIS) are presented in this paper. The system is built upon an implanted low-power digital signal processor (THUCIDSP). And the TFA-CIS strategy takes advantages of the time-frequency aware wavelet packet (WP) filter bank (FB) and WP envelope detector. The joint use of the DSP hardware and the TFA strategy gives birth to a very low power cochlear implant system. Implementation result shows that the complexity of the new TFA-CIS algorithm is 1.82 million instructions per second (MIPS) with db1 wavelet base, and the power dissipation of the DSP is 2.11mW @1.8V, 3MHz.