在女性发言者中,使用母音声学测量方法对语音障碍的歧视
Duy Duong Nguyen1, Daniel Novakovic1, Catherine Madill1
1Voice Research Laboratory, Sydney School of Health Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia.
概括
从持续的母音中结合声学测量有效地歧视女性的声音障碍. 基于光谱的测量结果比基于时间的测量结果准确度更高,这凸显了全面的语音分析对诊断的重要性.
科学领域:
- 语音和听力科学 语言和听力科学
- 声学分析 声学分析
- 声音障碍 声音障碍
背景情况:
- 持续的元音对于声学分析在语音障碍歧视中至关重要.
- 之前的研究还没有将各种元音声学测量用于全面的病理语音信号评估.
- 在基于时间的测量中,信号类型并未得到一致的应用,这可能会影响歧视可靠性.
研究的目的:
- 评估母音声学测量的有效性,以区分有声障碍和没有声障碍的女性说话者.
- 评估量化喉噪声,信号稳定性,周期性,光谱斜率和整体语音质量的指标.
- 为了比较单个声学测量与组合方法的分辨力.
主要方法:
- 分析了来自133名有语音障碍和97名无语音障碍的女性发言者的持续/ɑ/母音样本.
- 使用Prat软件进行波与噪声比率 (HNR),喉与噪声激发比率 (GNE),F0SD和CPPp.
- 在CPPadsv,LH和CSID中使用了语音和语音失声症分析 (ADSV) 程序,包括信号类型.
主要成果:
- 基于频谱的个别措施 (CPPadsv,CSID) 显示出良好的可接受的歧视.
- 基于时间的测量 (HNR,GNE,CPPp) 显示了可接受的灵敏度,但有限的特异性和准确性.
- 综合后勤回归模型实现了出色的灵敏度,良好至优异的特异性和优异的区分精度.
结论:
- 声学测量组合,评估声功能障碍的不同方面,产生优越的声音障碍歧视.
- 基于频谱的测量结果优于传统的基于时间的测量结果,尤其是在采用信号类型时.
- 持续的母音声学分析,特别是当结合并使用信号输入时,是临床语音障碍评估的宝贵工具.
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