DocumentCode
2651991
Title
A digital audio equalizer with Optimal Error Feedback Structure
Author
Pi, Xuesong ; Li, Hui ; Wu, Ye ; Xie, Hengjun ; Li, Huiqiu
Author_Institution
Key Lab. of Integrated Microsyst. Sci. & Eng., Peking Univ., Beijing, China
Volume
7
fYear
2010
fDate
16-18 April 2010
Abstract
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.
Keywords
equalisers; field programmable gate arrays; pulse code modulation; signal processing; FPGA; PCM; digital audio equalizer; digital audio signal; error feedback structure; signal processed; truncation noise; word length 24 bit; word length 27 bit; Acoustic noise; Equalizers; Feedback; Field programmable gate arrays; Filters; Frequency; Graphics; Signal processing; Topology; Transfer functions; Error Feedback; FPGA; equalizer; truncation noise;
fLanguage
English
Publisher
ieee
Conference_Titel
Computer Engineering and Technology (ICCET), 2010 2nd International Conference on
Conference_Location
Chengdu
Print_ISBN
978-1-4244-6347-3
Type
conf
DOI
10.1109/ICCET.2010.5485577
Filename
5485577
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