Acoustic measurements of the vocal-tract area function: sensitivity analysis and experiments

Hani Yehia*, Masaaki Honda, Fumitada Itakura


研究成果: Conference article査読

3 被引用数 (Scopus)


A method to determine the vocal-tract cross-sectional area function from acoustical measurements at the lips is analyzed here. Under the framework described by Sondhi and Gopinath (1971) and implemented by Sondhi and Resnick (1983), a sensitivity analysis of the vocal-tract area function, derived from the impedance or reflectance at the lips is performed. It indicates that, in the ideal case, the area function is not heavily affected by random distortions of the impulse response at the lips. Simulations and real measurements show that the method works relatively well, except for regions behind narrow constrictions. In this case, an excitation pulse with high energy, as well as a fine sampling, proved to be important. The excitation used here is a time stretched pulse. It produces an excitation with high energy without the necessity of a high power sound generator device.

ジャーナルICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
出版ステータスPublished - 1995 1月 1
イベントProceedings of the 1995 20th International Conference on Acoustics, Speech, and Signal Processing. Part 1 (of 5) - Detroit, MI, USA
継続期間: 1995 5月 91995 5月 12

ASJC Scopus subject areas

  • ソフトウェア
  • 信号処理
  • 電子工学および電気工学


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