A Subtractive-Type Speech Enhancement Using the Perceptual Frequency-Weighting Function

• HAYASHI Seiji

  Faculty of Engineering, Takushoku University

• INUKAI Hiroyuki

  Faculty of Engineering, Takushoku University

• SUGUIMOTO Masahiro

  Faculty of Engineering, Takushoku University

抄録

The present paper describes quality enhancement of speech corrupted by an additive background noise in a single-channel system. The proposed approach is based on the introduction of a perceptual criterion using a frequency-weighting filter in a subtractive-type enhancement process. Although this subtractive-type method is very attractive because of its simplicity, it produces an unnatural and unpleasant residual noise. Thus, it is difficult to select fixed optimized parameters for all speech and noise conditions. A new and effective algorithm is thus developed based on the masking properties of the human ear. This newly developed algorithm allows for an automatic adaptation in the time and frequency of the enhancement system and determines a suitable noise estimate according to the frequency of the noisy input speech. Experimental results demonstrate that the proposed approach can efficiently remove additive noise related to various kinds of noise corruption.

収録刊行物

• IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

  IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E92-A (1), 226-234, 2009

  一般社団法人 電子情報通信学会

キーワード

• noise suppression
• noise shaping
• perceptual weighting
• speech enhancement
• spectral subtraction

詳細情報

• CRID: 1390282681286455808
• NII論文ID: 10026855153
• NII書誌ID: AA10826239
• DOI: 10.1587/transfun.e92.a.226
• ISSN: 17451337
• ISSN: 09168508
• Web Site: http://www.jstage.jst.go.jp/article/transfun/E92.A/1/E92.A_1_226/_pdf
• 本文言語コード: en
• データソース種別:
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  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可