Model-Based Reproduction of Articulatory Trajectories for Consonant-Vowel Sequences
Model-Based Reproduction of Articulatory Trajectories for Consonant-Vowel Sequences
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DOI：
10.1109/tasl.2010.2091632
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发表时间：
2011-07-01
影响因子：
--
通讯作者：
Neuschaefer-Rube, Christiane
中科院分区：
文献类型：
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作者：
Birkholz, Peter;Kroeger, Bernd J.;Neuschaefer-Rube, Christiane
我们提出了一种基于顺序目标近似概念的用于生成关节轨迹的新颖定量模型。该模型应用于通过电磁发音描记术（EMA）测量的重复辅音-元音音节运动的详细再现。再现了缩颈肌（下唇、舌尖或舌背）和下颌的轨迹。因此，我们测试了关于发音命令的不变属性的以下假设：1）辅音的主要发音器官的目标在语音上下文、重音和语速方面是不变的。 2) 元音目标对于语速和重音而言是不变的。 3) 下颌和缩肌的关节命令的开始是同步的。我们在观察到的轨迹和模型生成的轨迹之间的高质量匹配方面的结果支持了这些假设。这项研究的结果可应用于发音语音合成控制模型的开发。
We present a novel quantitative model for the generation of articulatory trajectories based on the concept of sequential target approximation. The model was applied for the detailed reproduction of movements in repeated consonant-vowel syllables measured by electromagnetic articulography (EMA). The trajectories for the constrictor (lower lip, tongue tip, or tongue dorsum) and the jaw were reproduced. Thereby, we tested the following hypotheses about invariant properties of articulatory commands: 1) The target of the primary articulator for a consonant is invariant with respect to phonetic context, stress, and speaking rate. 2) Vowel targets are invariant with respect to speaking rate and stress. 3) The onsets of articulatory commands for the jaw and the constrictor are synchronized. Our results in terms of high-quality matches between observed and model-generated trajectories support these hypotheses. The findings of this study can be applied to the development of control models for articulatory speech synthesis.