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

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

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

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 segmentai gain and cepstral distance performance indices in comparison with conventional nonlinear spectral subtraction approaches.

Original languageEnglish
Pages (from-to)309-320
Number of pages12
JournalIEEE Transactions on Speech and Audio Processing
Volume13
Issue number3
DOIs
Publication statusPublished - May 2005
Externally publishedYes

Keywords

  • Sliding subspace projection
  • Speech enhancement
  • Stereophonic noise reduction

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