A Digital Audio Equalizer with Optimal Error Feedback Structure

摘要：

A digital audio equalizer (EQ) with optimal Error Feedback (EF) structure is presented and implemented based on FPGA in this paper. The signal processed by this EQ is 24bits digital audio signal of PCM format,and the coefficients are of 27 bits length. As the feedback coefficients are adjusted with the poles of the Optimal Error Feedback Structures,the distinguishing advantage of this proposed equalizer is that it can completely eliminate the truncation noise caused by the poles when comparing with current technology.

关键词： equalizer:Error Feedback:truncation noise FPGA

作者: Xuesong Pi Hui Li Ye Wu Hengjun Xie Huiqiu Li

作者单位: Key Lab of Integrated Microsystem Science and Eng. Shenzhen Graduate School,Peking University Shenzh Value-added Service Center China Telecom Shenzhen Branch Co. Ltd Shenzhen,518055 China

会议类型: 国际会议

会议名称: 2010 2nd International Conference on Computer Engineering and Technology(2010年第二届计算机工程与技术国际会议 ICCET 2010)

会议地点: 成都

会议语种:英文

页码: 4749-4753

在线出版日期: 2010-04-16（万方平台首次上网日期，不代表论文的发表时间）