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首页> 外文期刊>Journal of voice: official journal of the Voice Foundation >Vocal fold vibratory characteristics in normal female speakers from high-speed digital imaging
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Vocal fold vibratory characteristics in normal female speakers from high-speed digital imaging

机译：高速数字成像技术在普通女性扬声器中的人声折叠振动特性

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摘要

The purpose of the study was to investigate relationships between vocal fold vibrations and voice quality. Laryngeal images obtained from high-speed digital imaging (HSDI) were examined for their open-closed timing characteristics and perturbation values. A customized software delineated the glottal edges and used the Hilbert transform-based method of analysis to provide objective quantification of glottal perturbation. Overlay tracings of the transformed glottal cycles provided visual patterns on the overall vibratory dynamics. In this paper, we described the use of this method in looking at vibratory characteristics of a group of young female speakers (N = 23). We found that, females with no voice complaints and who had been perceived to have normal voices were not a homogeneous group in terms of their glottal vibratory patterns during phonation. Their vibratory patterns showed characteristics similar to exemplar voices targeted to be clear (50%), pressed (27%), breathy (15%), or a mixed quality (8%). Perturbation range in terms of cycle-to-cycle frequency and amplitude was small and did not discriminate patterns. All these patterns yielded perceptually normal voices suggesting that in normal young speakers, the level of perturbation may be more important to the judgment than the actual pattern of closure.
机译：这项研究的目的是调查声带振动与语音质量之间的关系。检查从高速数字成像（HSDI）获得的喉镜图像的开闭定时特性和摄动值。一个定制的软件描绘了声门边缘，并使用基于希尔伯特变换的分析方法来对声门扰动进行客观量化。转换后的声门循环的叠加轨迹提供了整体振动动力学的视觉模式。在本文中，我们描述了此方法在查看一组年轻女性说话人（N = 23）的振动特性中的使用。我们发现，就发声过程中的声门振动模式而言，没有声音抱怨并且被认为声音正常的女性不是同质群体。他们的振动模式表现出与典型声音类似的特征，这些声音的目标是清晰（50％），压迫（27％），呼吸（15％）或混合音质（8％）。就周期频率和振幅而言，扰动范围很小，无法区分模式。所有这些模式都产生了听觉上正常的声音，这表明在正常的年轻说话者中，对于判断而言，摄动的水平可能比实际的闭合模式更为重要。

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