By Topic

Noise reduction system based on frequency domain adaptive filter using modified DFT pair

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

The purchase and pricing options are temporarily unavailable. Please try again later.
3 Author(s)
Nakanishi, I. ; Fac. of Educ. & Regional Sci., Tottori Univ., Japan ; Itoh, Y. ; Fukui, Y.

This paper presents the noise reduction system based on the Frequency Domain Adaptive Filter (FDAF) using the Modified DFT pair (MDFTP). The proposed system consists of the Adaptive Line Enhancer (ALE), which utilizes single microphone; therefore, it is suitable for miniaturizing the portable electronic equipment. In addition, the proposed system requires the adjustment of the decorrelation parameter in the ALE according to the pitch in speech signal, therefore, a pitch detector based on using the MDFT is proposed. The performance of the proposed noise reduction system including the pitch detector is confirmed through computer simulation

Published in:

Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on  (Volume:2 )

Date of Conference:

6-9 May 2001