Title :
The analytical design of biquadratic parametric filters
Author_Institution :
Dept. of Eng., R. Roads Mil. Coll., Victoria, BC, Canada
Abstract :
Quadratic and biquadratic filter sections are often used in audio applications since only moderate filter Q´s are required. Closed-form expressions for analog biquadratic bandpass filters meeting prescribed specifications are derived. These results are then extended to the discrete-time domain through the use of the bilinear transformation. By cascading a number of biquadratic sections, a flexible method for controlling the overall frequency response of an audio system can be realized. Examples of digital filter designs are given in the context of audio-frequency filtering applications
Keywords :
audio signals; digital filters; filtering and prediction theory; frequency response; analog filters; audio applications; audio-frequency filtering; bilinear transformation; biquadratic parametric filters; closed form expressions; digital filter designs; discrete-time domain; frequency response; Band pass filters; Closed-form solution; Digital filters; Digital signal processing chips; Filter bank; Filtering; Finite impulse response filter; Frequency response; IIR filters; Nonlinear filters;
Conference_Titel :
Communications, Computers and Signal Processing, 1991., IEEE Pacific Rim Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-87942-638-1
DOI :
10.1109/PACRIM.1991.160823
