Noise reduction method for sinusoidal and wideband noise based on ALE and noise reconstruction filter

Author

Sumi, Keisuke ; Sasaoka, Naoto ; Itoh, Yoshio ; Fuji, Kensaku ; Tsuiki, S.

Author_Institution

Fac. of Eng., Tottori Univ., Japan

Volume

1

fYear

2004

fDate

26-29 Oct. 2004

Firstpage

567

Abstract

In this paper, a new noise reduction system for sinusoidal and wideband noise is proposed. We have proposed the cascaded structure of adaptive line enhancer (ALE) and noise reconstruction system (NRS). However, it has the problem that the quality of the enhanced speech signal is degraded. In order to solve this problem, a noise reduction system which is composed of two ALE and a noise reconstruction filter (NRF) is proposed. The two ALE are used to estimate the sinusoidal noise and the speech signal, respectively. In order to improve the quality of the enhanced speech, the NRF is used. We also propose a noise reduction system with feedback circuit to improve the quality of the enhanced speech more. Simulation results show the effectiveness of the proposed system.

Keywords

adaptive filters; circuit feedback; parameter estimation; signal denoising; signal reconstruction; speech enhancement; ALE; NRS; adaptive line enhancer; cascaded structure; enhanced speech signal; feedback circuit; noise estimation; noise reconstruction filter; noise reconstruction system; noise reduction system; sinusoidal noise; speech quality; speech signal; wideband noise; Background noise; Circuit noise; Degradation; Electronic mail; Filters; Microphones; Noise reduction; Speech enhancement; Wideband; Working environment noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Information Technology, 2004. ISCIT 2004. IEEE International Symposium on

Print_ISBN

0-7803-8593-4

Type

conf

DOI

10.1109/ISCIT.2004.1412909

Filename

1412909