会厌囊中声学特征。
Acoustic Characteristics in Epiglottic Cyst.
机构信息
Department of Otorhinolaryngology-Head and Neck Surgery and Biomedical Research Institute, Pusan National University Hospital, Busan, South Korea.
Department of Otorhinolaryngology-Head and Neck Surgery, Pusan National University School of Medicine, Busan, South Korea.
出版信息
J Voice. 2019 Jul;33(4):497-500. doi: 10.1016/j.jvoice.2018.01.023. Epub 2018 May 3.
OBJECTIVE
The purpose of this study was to analyze the acoustic characteristics associated with alternation deformation of the vocal tract due to large epiglottic cyst, and to confirm the relation between the anatomical change and resonant function of the vocal tract.
METHODS
Eight men with epiglottic cyst were enrolled in this study. The jitter, shimmer, noise-to-harmonic ratio, and first two formants were analyzed in vowels /a:/, /e:/, /i:/, /o:/, and /u:/. These values were analyzed before and after laryngeal microsurgery.
RESULTS
The F1 value of /a:/ was significantly raised after surgery. Significant differences of formant frequencies in other vowels, jitter, shimmer, and noise-to-harmonic ratio were not presented.
CONCLUSION
The results of this study could be used to analyze changes in the resonance of vocal tracts due to the epiglottic cysts.
目的
本研究旨在分析由于会厌大囊肿导致声道变形的声学特征，并确定解剖结构变化与声道谐振功能之间的关系。
方法
本研究纳入了 8 名患有会厌囊肿的男性患者。对他们的/a:/、/e:/、/i:/、/o:/和/u:/元音进行抖动、颤抖、噪声与谐波比以及前两个共振峰的分析。这些值在喉显微手术后进行分析。
结果
手术后/a:/的 F1 值显著升高。其他元音的共振峰频率、抖动、颤抖和噪声与谐波比没有显著差异。
结论
本研究的结果可用于分析会厌囊肿引起的声道共鸣变化。
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