Title :
On the design of high order digital audio equalizers
Author :
Fernandez-Vazquez, Alfonso ; Jovanovic-Dolecek, Gordana ; Xie, Xue Mei
Author_Institution :
Xidian Univ., Xian
fDate :
Nov. 28 2007-Dec. 1 2007
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;
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
DOI :
10.1109/ISPACS.2007.4445815
