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首页> 外文期刊>Acoustical science and technology >Sound generation by unsteady flow ejecting from the vibrating glottis based on a distributed parameter model of the vocal cords
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Sound generation by unsteady flow ejecting from the vibrating glottis based on a distributed parameter model of the vocal cords

机译：基于声带的分布参数模型，通过从声门发出不稳定流动产生声音

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References(32) Cited-By(3) The purpose of the present paper is to clarify the effects of unsteady glottal flow on phonation. We perform numerical experiments with respect to vocal cord vibrations in order to verify the validity of the proposed model for a glottal sound source. In addition, the prediction of pressure waves induced by unsteady glottal jets is attempted. Good agreement between the numerical results and the measured data of the properties of the glottal source indicates that the proposed model is a good tool for the analysis of speech production. Simulated pulsatile glottal jets show the generation of high-frequency noises in a pressure wave at the glottis and the unsteady and asymmetric motion of vortices. These vortices cause amplitude fluctuations in the pressure wave downstream near the glottis, although pressure waves far from the glottis are not greatly affected. In conclusion, the unsteady glottal flow affects only the area near the glottis and does not greatly affect speech waves radiating from the mouth.
机译：参考文献（32）Cited-By（3）本文的目的是阐明声门非稳态流动对发声的影响。我们对声带振动进行数值实验，以验证声门声源提出的模型的有效性。另外，尝试了预测由不稳定声门喷射引起的压力波。数值结果与声门来源特性的测量数据之间的良好一致性表明，该模型是语音生成分析的良好工具。模拟的脉动声门喷射显示声门处压力波中产生高频噪声，以及涡流的不稳定和不对称运动。尽管远离声门的压力波并没有受到很大的影响，但这些涡流会在声门附近的下游压力波中引起振幅波动。总之，不稳定的声门流动仅影响声门附近的区域，不会对从口腔辐射的语音波产生很大影响。

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