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首页> 外文期刊>IEEE transactions on audio, speech and language processing >Estimation of Place of Articulation During Stop Closures of Vowel–Consonant–Vowel Utterances
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Estimation of Place of Articulation During Stop Closures of Vowel–Consonant–Vowel Utterances

机译：元音-辅音-元音发音停止闭合时的发音位置估计

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摘要

Production of vowel–oral stop consonant–vowel utterances involves movement of articulators from the articulatory position of the initial vowel towards that of the oral stop closure, and then to that of the final vowel. As the closure segments have zero or low signal energy, linear predictive coding (LPC)-based estimation of vocal tract shape fails during stop closure. This paper reports a technique for estimation of place of articulation during stop closures by performing bivariate polynomial modeling on vocal tract area values during transition segments preceding and following the closure. The technique with second-degree polynomial modeling was found to be suitable for estimating the place of maximum constriction during stop closure segments of vowel–consonant–vowel utterances with bilabial, alveolar, and velar stops. The estimated places compared well with the actual constriction locations observed from the articulatory data. The technique may be useful for improving effectiveness of speech-training aids for production of stop consonants by providing visual feedback of the estimated place of articulation.
机译：元音-口音辅音-元音的产生涉及发音器从初始元音的发音位置向口音闭合的发音位置的运动，再到最终元音的发音位置的运动。由于闭合段的信号能量为零或较低，因此在停止闭合期间，基于线性预测编码（LPC）的声道形状估计会失败。本文报告了一种技术，该技术通过在封闭之前和之后的过渡路段中对声道面积值执行双变量多项式建模来估计止动关闭期间的关节位置。发现采用二次多项式建模的技术适用于估计双唇，齿槽和绒毛停止的元音–辅音–元音发声的停止段中最大收缩的位置。估计的位置与从咬合数据中观察到的实际收缩位置进行了比较。通过提供估计的发音位置的视觉反馈，该技术可能有助于提高语音训练辅助工具在产生辅音时的有效性。

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