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中文摘要：
为了研究言语产生的生理过程，需要对发音器官进行调音规律的研究。本文首先基于x光录像建立了汉语普通话x光调音数据库，涵盖了普通话204个单音节、4个声调和36个儿化韵，并提取了各发音器官在正中矢状面上的形状边缘，得到下颌的调音运动数据。然后对下颌运动的空间分布进行分析，设定了下颌打开度和下颌平移度两个调音参数来控制下颌的空间位置。接着对下颌运动的时间特性，也即下颌在各音节中的运动轨迹进行分析，用二次曲线拟合运动轨迹，最终建立了普通话下颌运动的参数调音模型。
英文摘要：
In this paper, the jaw was modeled based on the articulatory data from X-ray movie in Standard Chinese. First, the X-ray articulatory database of Standard Chinese were established, covering 21 initials, 39 rimes, and 204 monosyllables. Second, the articulatory movement of the jaw were analyzed, both in spatial and temporal domain. Two articulatory parameters, jaw angle and jaw shift, were set to control the spatial movement of the jaw. A quadratic polynomial curve was set to fit as the temporal trajectory of the jaw in monosyllable. Finally an articulatory model of the jaw in Standard Chinese was established, which is a part of a whole articulatory model of vocal tract.
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