The relationship of vocal tract shape to, three voice qualities
The relationship of vocal tract shape to, three voice qualities
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DOI：
10.1121/1.1352085
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发表时间：
2001-04-01
影响因子：
2.4
通讯作者：
Hoffman, EA
中科院分区：
文献类型：
--
作者：
Story, BH;Titze, IR;Hoffman, EA
用磁共振成像(MRI)从一名男性说话者和一名女性说话者身上获得了代表元音[i，ae，a，u]的三维声道形状和相应的面积函数。这两位演讲者都是训练有素的声乐表演者，都擅长操纵声道形状来改变声音质量。每个元音都被演奏了三次，每一次都有三种音质中的一种：正常、打哈欠和变态。这项研究的目的是确定可以通过操纵声道形状来改变声音质量的一些方法，同时保持所需的语音质量。综上所述，在每个特定音质中产生的四个元音的平均面积函数随后被计算出来。相对于正常语音，元音面积功能和平均面积功能总体上都表现为打哈欠时口腔变宽，音道长度增加。缠绕的元音的特征是音道长度缩短，嘴唇张开，口腔轻微收缩。由此产生的发音改变的声学特征包括前两个共振峰(F1和F2)对于所有打哈欠的元音来说是靠近的，而对于所有扭动的元音来说是远离的。(C)2001年美国戒酒协会。
Three-dimensional vocal tract shapes and consequent area functions representing the vowels [i, ae, a, u] have been obtained from one male and one female speaker using magnetic resonance imaging (MRI). The two speakers were trained vocal performers and both were adept at manipulation of vocal tract shape to alter voice quality. Each vowel was performed three times, each with one of the three voice qualities: normal, yawny, and twangy. The purpose of the study was to determine some ways in which the vocal tract shape can be manipulated to alter voice quality while retaining a desired phonetic quality. To summarize any overall tract shaping tendencies mean area functions were subsequently computed across the four vowels produced within each specific voice quality. Relative to normal speech, both the vowel area functions and mean area functions showed, in general, that the oral cavity is widened and tract length increased for the yawny productions. The twangy vowels were characterized by shortened tract length, widened lip opening, and a slightly constricted oral cavity. The resulting acoustic characteristics of these articulatory alterations consisted of the first two formants (F1 and F2) being close together for all yawny vowels and far apart for all the twangy vowels. (C) 2001 Acollstical Society of America.