講演名 2014-06-19
Adaptive Speech Analysis Method Using Multivariate Empirical Mode Decomposition in Frequency Domain
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抄録(和)
抄録(英) In this paper, we propose a novel method for speech analysis using multivariate empirical mode decomposition (MEMD) based on the source-filter (SF) model. The proposed method decomposes log-spectrum of a speech signal into two groups of the summed intrinsic-mode-functions (IMFs): the summation of first group contains fine structure corresponding to log-spectrum of the glottal source and the summation of the second group contains spectral envelope corresponding to frequency response of the vocal-tract filter. In the proposed method, the two groups can be automatically determined by using IMF classification based on autocorrelation of multivariate IMFs. We evaluate the proposed method in comparison with linear prediction (LP)-based and cepstrum methods to confirm its abilities. The results reveal that our proposed method can automatically and correctly separate two groups of IMFs, these of source and filter, in log-spectrum representation and effectively analyze speech signal as the same as abilities of LP-based and cepstrum methods.
キーワード(和)
キーワード(英) spectral envelope / multivariate empirical mode decomposition / speech analysis / log spectrum, souce-filter model
資料番号 SP2014-54,WIT2014-9
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)
幹事氏名(和)
幹事氏名(英)
幹事補佐氏名(和)
幹事補佐氏名(英)

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) Adaptive Speech Analysis Method Using Multivariate Empirical Mode Decomposition in Frequency Domain
サブタイトル(和)
キーワード(1)(和/英) / spectral envelope
第 1 著者 氏名(和/英) / Surasak BOONKLA
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 SP2014-54,WIT2014-9
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