Department of Otolaryngology Head and Neck Surgery, Guangdong General Hospital and Guangdong Academy of Medical Sciences, South China University of Technology, Guangzhou City, China; Department of Otolaryngology, The Second People's Hospital of Longgang District, Shenzhen City, China.
Department of Otolaryngology, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou City, China.
J Voice. 2019 May;33(3):333-339. doi: 10.1016/j.jvoice.2017.12.007. Epub 2018 Feb 12.
The objective of this study was to examine the perceptual structure and acoustic characteristics of speech of patients with adductor spasmodic dysphonia (ADSD) in Mandarin.
Case-Control Study MATERIALS AND METHODS: For the estimation of dysphonia level, perceptual and acoustic analysis were used for patients with ADSD (N = 20) and the control group (N = 20) that are Mandarin-Chinese speakers. For both subgroups, a sustained vowel and connected speech samples were obtained. The difference of perceptual and acoustic parameters between the two subgroups was assessed and analyzed.
For acoustic assessment, the percentage of phonatory breaks (PBs) of connected reading and the percentage of aperiodic segments and frequency shifts (FS) of vowel and reading in patients with ADSD were significantly worse than controls, the mean harmonics-to-noise ratio and the fundamental frequency standard deviation of vowel as well. For perceptual evaluation, the rating of speech and vowel in patients with ADSD are significantly higher than controls. The percentage of aberrant acoustic events (PB, frequency shift, and aperiodic segment) and the fundamental frequency standard deviation and mean harmonics-to-noise ratio were significantly correlated with the perceptual rating in the vowel and reading productions.
The perceptual and acoustic parameters of connected vowel and reading in patients with ADSD are worse than those in normal controls, and could validly and reliably estimate dysphonia of ADSD in Mandarin-speaking Chinese.
本研究旨在探讨汉语普通话痉挛性发音障碍（ADSD）患者言语感知结构和声学特征。
病例对照研究
为评估嗓音障碍程度，对 ADSD 患者（N=20）和普通话对照组（N=20）进行了言语感知和声学分析。对两组患者均进行了元音和朗读句子的声学测试。评估并分析了两组患者的感知和声学参数差异。
在声学评估方面，ADSD 患者的朗读时的声带间隙率（PBs）、元音和朗读时的无周期段和频率偏移（FS）百分比，以及元音的平均谐噪比和基频标准差均显著差于对照组。在感知评估方面，ADSD 患者的语音和元音评分显著高于对照组。元音和朗读时的异常声学事件（PB、频率偏移和无周期段）百分比以及基频标准差和平均谐噪比与元音和朗读时的感知评分显著相关。
ADSD 患者的元音和朗读连接词的感知和声学参数明显差于正常对照组，能够有效可靠地评估汉语普通话 ADSD 患者的嗓音障碍。
