Estimating the vocal-tract area function from formants using a sensitivity function and least square

Tokihiko Kaburagi, Tetsuro Takano, Yuki Sakamoto

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

We present a method for estimating the vocal-tract area function from specified formant frequencies. The method extends the work of Story (J.A.S.A., 119, 715-718, 1996) based on a sensitivity function representing the change in the formant frequency due to a small perturbation of the cross-sectional area of the vocal tract. Our method estimates the vocal-tract shape through an iterative procedure in which the sensitivity function is used as the basis function to gradually optimize the cross-sectional area that produces the target formant frequencies. In addition, the summing weight of sensitivity functions is determined by minimizing an objective function representing the relative frequency error of every format. We conducted numerical experiments using area function data of English vowels. Results showed that our method can estimate the vocal-tract shape with satisfactory accuracy. In addition, the number of iterative calculations is significantly lower than with Story's original method.

本文言語英語
ホスト出版物のタイトル13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012
ページ2191-2194
ページ数4
出版ステータス出版済み - 12 1 2012
イベント13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012 - Portland, OR, 米国
継続期間: 9 9 20129 13 2012

出版物シリーズ

名前13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012
3

その他

その他13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012
国/地域米国
CityPortland, OR
Period9/9/129/13/12

All Science Journal Classification (ASJC) codes

  • コンピュータ ネットワークおよび通信
  • 通信

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