VOCAL QUALITY FACTORS - ANALYSIS, SYNTHESIS, AND PERCEPTION
VOCAL QUALITY FACTORS - ANALYSIS, SYNTHESIS, AND PERCEPTION
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DOI：
10.1121/1.402044
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发表时间：
1991-11-01
影响因子：
2.4
通讯作者：
LEE, CK
中科院分区：
文献类型：
--
作者：
CHILDERS, DG;LEE, CK
这项研究的目的是检查声带振动模式变化可能影响发声质量的几个因素。我们考察了四种嗓音类型：声调、声调、假声和喘息。发展了三类分析技术来从语音和电声门图(EGG)信号中提取与源相关的特征。声门脉冲宽度、声门脉冲偏斜度、声门闭合的突发性和湍流噪声分量是表征声门兴奋的四个重要因素。研究了这些因素对语音合成的意义，提出了一种新的声源模型，该模型考虑了声带运动的某些生理方面，并利用语音合成进行了测试。通过知觉听力测试来评价声源模型参数对合成语音的听觉影响。考虑了声源激励的谱斜率、声门激励脉冲的形状和湍流噪声源的特性的影响。这些研究成果的应用包括自然发声语音的合成、发声障碍的合成和建模，以及非特定说话人(或自适应)语音识别系统的开发。
The purpose of this study was to examine several factors of vocal quality that might be affected by changes in vocal fold vibratory patterns. Four voice types were examined: modal, vocal fry, falsetto, and breathy. Three categories of analysis techniques were developed to extract source-related features from speech and electroglottographic (EGG) signals. Four factors were found to be important for characterizing the glottal excitations for the four voice types: the glottal pulse width, the glottal pulse skewness, the abruptness of glottal closure, and the turbulent noise component. The significance of these factors for voice synthesis was studied and a new voice source model that accounted for certain physiological aspects of vocal fold motion was developed and tested using speech synthesis. Perceptual listening tests were conducted to evaluate the auditory effects of the source model parameters upon synthesized speech. The effects of the spectral slope of the source excitation, the shape of the glottal excitation pulse, and the characteristics of the turbulent noise source were considered. Applications for these research results include synthesis of natural sounding speech, synthesis and modeling of vocal disorders, and the development of speaker independent (or adaptive) speech recognition systems.