Vocal tract area function estimation from midsagittal dimensions with CT scans and a vocal tract cast: modeling the transition with two sets of coefficients.
Vocal tract area function estimation from midsagittal dimensions with CT scans and a vocal tract cast: modeling the transition with two sets of coefficients.
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DOI：
10.1044/jshr.3501.53
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发表时间：
1992-02
期刊：
影响因子：
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通讯作者：
P. Perrier;L. Boë;R. Sock
中科院分区：
文献类型：
--
作者：
P. Perrier;L. Boë;R. Sock
测量声道矢状面的面积函数是研究声道几何与语音声学关系的重要步骤。受Heinz&Stevens(1965)的阿尔法-贝塔模型的启发，我们提出了一个新的模型来实现这一转变。我们的模型是基于对法语三个基本元音[i，a，u]的声道狭窄带的CT扫描的大矢状面和小矢状面的声道铸型的分析。我们提取了两组系数，分别适用于大的和小的矢状面维度。然后，我们将该模型的预测与文献中的其他模型的预测进行了比较。最后，使用由声道声学模型生成的矢状面切片来测试该双系数程序对于元音声学模拟的有用性。
The generation of area functions from measurements of the sagittal section is an important step in the study of the relation between vocal tract geometry and speech acoustics. We present a new model to perform this transformation, inspired by the alpha beta model of Heinz & Stevens (1965). Our model is based on analysis of a vocal tract cast for large sagittal dimensions and for small sagittal dimensions on CT scans of the vocal tract constriction zones for the three cardinal vowels [i, a, u] of French. We extracted two sets of coefficients, appropriate for large and small sagittal dimensions respectively. We then compared the predictions of the model with those of other models from the literature. Finally, the usefulness of this dual coefficient procedure for the acoustic simulation of vowels was tested using sagittal sections generated by an acoustic model of the vocal tract.