用发音机制模型重现了奥曼声谱中的S形F2轨迹，揭示其协同成因。
Articulatory modeling of the S-shaped F2 trajectories observed in Öhman's spectrographic analysis of VCV syllables
- 基于町田模型规划发音轨迹，区分元音与辅音影响
- 合成数据再现75个VCV序列的S形F2轨迹特征
- 发现S形轨迹源于所有发音器官的协同作用
30年前首次使用DRM模型合成了奥曼研究中的含塞音的VCV序列，但该方法主要关注声学特性，缺乏发音机制约束。本研究对相同75个VCV序列进行分析，采用町田模型生成，通过轨迹规划区分元音间过渡与辅音影响。合成数据表现出与奥曼序列相似的特征，包括S形F2轨迹。此外，从合成的CV数据中计算了F2和F3的定位方程（LEs），以探究其内在决定性，从而重新审视传统解释。结果表明，尽管元音与辅音的发音规划分别进行，但S形F2轨迹源自所有发音器官协同作用的复合机制。
原文摘要 · Abstract (English)
The synthesis of Ohman's VCV sequences with intervocalic plosive consonants was first achieved 30 years ago using the DRM model. However, this approach remains primarily acoustic and lacks articulatory constraints. In this study, the same 75 VCVs are analyzed, but generated with the Maeda model, using trajectory planning that differentiates vowel-to-vowel transitions from consonantal influences. Synthetic data exhibit similar characteristics to Ohman's sequences, including the presence of S-shaped F2 trajectories. Furthermore, locus equations (LEs) for F2 and F3 are computed from synthetic CV data to investigate their underlying determinism, leading to a reassessment of conventional interpretations. The findings indicate that, although articulatory planning is structured separately for vowel and consonant groups, S-shaped F2 trajectories emerge from a composite mechanism governed by the coordinated synergy of all articulators.
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