Frequency band division analysis and fitting based on Bark domain for cochlear implant(PDF)
《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]
- Issue:
- 2020年第3期
- Page:
- 350-354
- Research Field:
- 医学信号处理与医学仪器
- Publishing date:
Info
- Title:
- Frequency band division analysis and fitting based on Bark domain for cochlear implant
- Author(s):
- CHEN Yousheng; CAO Zhiliang; XIA Linzhong; ZHANG Chunxiao; LIN Weizhen
- Shenzhen Institute of Information Technology, Shenzhen 518000, China
- Keywords:
- Keywords: cochlear implant; curve fitting; frequency band division; filter bank
- PACS:
- R318；TH776
- DOI:
- DOI:10.3969/j.issn.1005-202X.2020.03.018
- Abstract:
- Abstract: At present, the mainstream speech processing strategy for cochlear implants is based on the speech processing algorithm of filter banks. The signals processing by the algorithm is based on frequency band division and the parameters are transferred to the corresponding electrodes. The frequency band division of cochlear filter banks is not equal, but accordes to certain rules and conforms to the human auditory characteristics. Among them, the frequency band division based on Bark domain is an important reference. Herein the method of frequency band division based on Bark domain for cochlear implants is studied. The characteristics of frequency band division based on Bark domain are discussed, and the current frequency band division is analyzed. Then the curve fitting method in frequency band division is further discussed, which provides important methods and parameters for frequency band division of cochlear filter banks.
Last Update: 2020-04-02