Stereophonic noise reduction using a combined sliding subspace projection and adaptive signal enhancement

Author

Hoya, Tetsuya ; Tanaka, Toshihisa ; Cichocki, Andrzej ; Murakami, Takahiro ; Hori, Gen ; Chambers, Jonathon A.

Author_Institution

Lab. for Adv. Brain Signal Process., Saitama, Japan

Volume

13

Issue

3

fYear

2005

fDate

5/1/2005 12:00:00 AM

Firstpage

309

Lastpage

320

Abstract

A novel stereophonic noise reduction method is proposed. This method is based upon a combination of a subspace approach realized in a sliding window operation and two-channel adaptive signal enhancing. The signal obtained from the signal subspace is used as the input signal to the adaptive signal enhancer for each channel, instead of noise, as in the ordinary adaptive noise canceling scheme. Simulation results based upon real stereophonic speech contaminated by noise components show that the proposed method gives improved enhancement quality in terms of both segmental gain and cepstral distance performance indices in comparison with conventional nonlinear spectral subtraction approaches.

Keywords

adaptive signal processing; cepstral analysis; signal denoising; speech enhancement; adaptive noise canceling scheme; adaptive signal enhancement; cepstral distance performance index; segmental gain; sliding subspace projection; sliding window operation; spectral subtraction approach; speech enhancement; stereophonic noise reduction; stereophonic speech; Biomedical signal processing; Cepstral analysis; Deconvolution; Laboratories; Matrix decomposition; Noise cancellation; Noise reduction; Performance gain; Speech enhancement; Speech processing; Sliding subspace projection; speech enhancement; stereophonic noise reduction;

fLanguage

English

Journal_Title

Speech and Audio Processing, IEEE Transactions on

Publisher

ieee

ISSN

1063-6676

Type

jour

DOI

10.1109/TSA.2005.845792

Filename

1420366