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首页> 外文期刊>The Journal of the Acoustical Society of America >An acoustic camera approach to studying nasality in speech: The case of Polish nasalized vowels
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An acoustic camera approach to studying nasality in speech: The case of Polish nasalized vowels

机译：语音中鼻性的声学相机方法：波兰鼻化元音的情况

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摘要

The purpose of this research is to introduce an acoustic camera method to analyze nasality in speech. The input information is generated using an acoustic camera device composed of a 16-channel audio recorder with a microphone array, a high-speed video camera, and Carstens articulograph (model AG500). The linearly constrained minimum variance algorithm is used to provide illustrations of the spatial acoustic field distribution. Acoustic pressure distribution is determined as related to the location of oral, nasal, and oronasal resonances, as well as the root mean square value of the pressure. Durations of particular types of resonances activated in the course of speech sound production are also specified. An example application of the method is discussed for Polish nasalized vowels. The internal structure of the vowels is heterogeneous and involves alternate or simultaneous activation of oral and nasal resonances. The order of appearance of these resonances and their percentage share in the realization of the vowels is determined based on the spatial distribution of the acoustic field. The vowels' structure is demonstrated to be even more complex than suggested in former studies. Furthermore, the proportion of nasality is found to vary significantly between the vowels [epsilon(w) over tilde] and [(sic)(w) over tilde]. (C) 2018 Acoustical Society of America.
机译：本研究的目的是引入声学相机方法来分析言论中的鼻性。使用具有麦克风阵列，高速摄像机和卡斯特琴曲线仪（型号AG500）的16通道音频记录器组成的声学相机设备生成输入信息。线性约束的最小方差算法用于提供空间声场分布的图示。声压分布被确定为与口腔，鼻腔和口服谐振的位置有关，以及压力的根均方值。还指定了在语音生产过程中激活的特定类型共振的持续时间。讨论了抛光鼻化元音的方法的示例应用。元音的内部结构是异质的并且涉及交替或同时激活口腔和鼻腔共振。基于声场的空间分布确定了这些共振的外观和它们的百分比份额，基于声场的空间分布来确定。元音结构被证明是比以前研究中的建议更复杂。此外，发现鼻腔的比例在元音（ε（w）上的薄层ε和薄片上的[（siC）（w）之间有显着变化]。 （c）2018年声学学会。

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    Lorenc Anita; Krol Daniel; Klessa Katarzyna;

  • 作者单位

    Warsaw Univ Inst Appl Polish Studies Dept Speech &

    Language Therapy &

    Voice Prod Krakowskie Przedmiescie 26-28 PL-00927 Warsaw Poland;

    State Higher Vocat Sch Tarnow Dept Comp Sci Mickiewicza 8 PL-33100 Tarnow Poland;

    Adam Mickiewicz Univ Inst Appl Linguist Al Niepodleglosci 4 PL-61874 Poznan Poland;

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  • 正文语种 eng
  • 中图分类 声学;
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