个人信息Personal Information
教授
博士生导师
硕士生导师
性别:男
毕业院校:大连理工大学
学位:博士
所在单位:信息与通信工程学院
学科:信号与信息处理. 通信与信息系统
办公地点:大连理工大学创新园大厦A526室
联系方式:0411-84706005-3526
电子邮箱:zhechen@dlut.edu.cn
Optimal design of digital audio parametric equalizer
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论文类型:期刊论文
发表时间:2014-01-01
发表刊物:Journal of Information and Computational Science
收录刊物:EI、Scopus
卷号:11
期号:1
页面范围:57-66
ISSN号:15487741
摘要:The traditional design method of digital audio parametric equalizer often has spectrum aliasing between two adjacent sub-filters with closed center frequencies. A modified design method for digital parametric equalizer is proposed in this paper. A computer-aided design method is adopted to approach the desired amplitude-frequency responses based on minimum mean square error with the Fletcher-Powell method. The choice strategy of the initial values of the filter coefficients are discussed according to different conditions. Frequency control points is introduced to suppress aliasing due to filter cascade. Experimental results show that the proposed method can eliminate aliasing caused by filter cascade between two adjacent sub-filters. 1548-7741/Copyright ? 2014 Binary Information Press.