Adaptive IIR digital filters for noise and echo reduction in speech

Author

Kwan, H.K.

Author_Institution

Dept. of Electr. & Comput. Eng., Windsor Univ., Ont., Canada

Volume

1

fYear

2001

fDate

2001

Firstpage

47

Abstract

In this paper, two types of adaptive IIR digital filters with saturation outputs are introduced for noise and echo reduction in speech. By imposing a saturation operation at the output of an adaptive IIR digital filter, undesirable effects of any instability that may arise in the filter can be avoided. The preliminary simulation results presented indicate that these two adaptive IIR digital filters, as compared to other common adaptive algorithms, perform well in noise reduction, echo reduction, and in combined noise and echo reduction in speech

Keywords

IIR filters; adaptive filters; adaptive signal processing; digital filters; echo suppression; filtering theory; noise abatement; speech processing; acoustic noise cancellation; adaptive IIR digital filters; adaptive algorithms; echo reduction; noise reduction; saturation outputs; simulation results; speech processing; two-microphone system; Acoustic noise; Adaptive filters; Digital filters; Echo cancellers; Finite impulse response filter; IIR filters; Microphones; Noise cancellation; Noise reduction; Speech enhancement;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Computers and signal Processing, 2001. PACRIM. 2001 IEEE Pacific Rim Conference on

Conference_Location

Victoria, BC

Print_ISBN

0-7803-7080-5

Type

conf

DOI

10.1109/PACRIM.2001.953519

Filename

953519