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Individual variation of morphological and acoustic effects of the nasal tract

机译:鼻腔形态和声学效应的个体变化

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Previous studies have reported that nasal consonants in Mandarin are an important source of individual information. This study conducts morphological analysis and acoustic modeling of the nasal and paranasal cavities to investigate the effects of the nasal cavity on speaker characteristics. Morphological analysis was carried out on the perpendicular planes to the nasal tract and the cross-sectional area functions of the nasal tract based on volumetric MRI data obtained for four Chinese speakers. It was shown that the nasal cavity possesses relatively large variation across speakers. Furthermore, acoustic effects of the individual variation of the nasal cavity were estimated by using a transmission line model. The results showed that the interspeaker variation of the nasal tract affects spectra in the frequency range from 2 kHz to 4 kHz, which is in agreement with the results from our previous statistical studies.
机译:以前的研究报告说,普通话的鼻辅音是个人信息的重要来源。这项研究进行了鼻腔和鼻腔的形态分析和声学建模,以研究鼻腔对说话者特征的影响。基于获得的四名华裔演讲者的体积MRI数据,在与鼻道垂直的平面上进行了形态学分析,并对鼻道的横截面积函数进行了分析。结果表明,鼻腔在说话者之间具有较大的变化。此外,通过使用传输线模型来估计鼻腔个体变化的声学效果。结果表明,鼻道的扬声器间变化会影响2 kHz至4 kHz频率范围内的频谱,这与我们先前的统计研究结果一致。

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