講演名 2014-06-19
Instantaneous amplitude and phase restoration using Kalman filter for speech enhancement
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抄録(和)
抄録(英) This paper proposes a method of restoring the instantaneous amplitudes and phases using Kalman filter with linear prediction from a noisy reverberant signal for speech enhancement. Recent studies have shown that the phase spectrum in short time Fourier transform plays an important role for speech enhancement. We thus have previously proposed the method of restoring the instantaneous amplitudes and phases simultaneously in noisy environment based on this fact. In this paper, we extend our previous method to be general speech enhancement in real environments by removing the effects of noise and reverberation simultaneously. Objective experiments were conducted in various noisy reverberant environments to evaluate the effectiveness of the proposed scheme by using signal to error ratio (SER), correlation, perceptual evaluation of speech quality (PESQ), and SNR loss. Results showed that the proposed method can effectively improve these objective measurements in noisy reverberant environments, compared with typical methods such as Wiener filtering method and minimum mean square error short-time spectral amplitude (MMSE-STSA) method.
キーワード(和)
キーワード(英) Instantaneous amplitude and phase / Kalman filter / Linear prediction / Gammatone filterbank
資料番号 SP2014-51,WIT2014-6
発行日

研究会情報
研究会 WIT
開催期間 2014/6/12(から1日開催)
開催地(和)
開催地(英)
テーマ(和)
テーマ(英)
委員長氏名(和)
委員長氏名(英)
副委員長氏名(和)
副委員長氏名(英)
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幹事補佐氏名(和)
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講演論文情報詳細
申込み研究会 Well-being Information Technology(WIT)
本文の言語 ENG
タイトル(和)
サブタイトル(和)
タイトル(英) Instantaneous amplitude and phase restoration using Kalman filter for speech enhancement
サブタイトル(和)
キーワード(1)(和/英) / Instantaneous amplitude and phase
第 1 著者 氏名(和/英) / Yang LIU
第 1 著者 所属(和/英)
School of Information Science, Japan Advanced Institute of Science and Technology,
発表年月日 2014-06-19
資料番号 SP2014-51,WIT2014-6
巻番号(vol) vol.114
号番号(no) 92
ページ範囲 pp.-
ページ数 6
発行日