On the design of high order digital audio equalizers

Author

Fernandez-Vazquez, Alfonso ; Jovanovic-Dolecek, Gordana ; Xie, Xue Mei

Author_Institution

Xidian Univ., Xian

fYear

2007

fDate

Nov. 28 2007-Dec. 1 2007

Firstpage

28

Lastpage

31

Abstract

This paper presents a new approach for designing high order digital audio equalizer filters. The new design is based on odd order analog allpass filters and bilinear transformation. The analog allpass filters are designed using Butterworth, Chebyshev I, Chebyshev II and elliptic polynomials. The new design results in an efficient structure, i.e., a parallel connection of two stable allpass filters.

Keywords

Butterworth filters; Chebyshev approximation; audio equipment; audio signal processing; elliptic equations; equalisers; filtering theory; polynomials; Butterworth polynomials; Chebyshev I polynomials; Chebyshev II polynomials; bilinear transformation; elliptic polynomials; high order digital audio equalizer filters; odd order analog allpass filters; Chebyshev approximation; Digital filters; Equalizers; Frequency; IIR filters; Optical filters; Optical signal processing; Passband; Polynomials; Signal design; IIR filters; Shelving filters; allpass filters; peaking filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Signal Processing and Communication Systems, 2007. ISPACS 2007. International Symposium on

Conference_Location

Xiamen

Print_ISBN

978-1-4244-1447-5

Electronic_ISBN

978-1-4244-1447-5

Type

conf

DOI

10.1109/ISPACS.2007.4445815

Filename

4445815