Methods Video-stroboscopy was used to reveal the laryngeal cavity and dynamic changes of the vocal fold, and sound spectrograph was used to examine audio frequency, pitch and width.
方法用频闪喉镜显示患者喉
和声带的动态变
，用声门分析仪检
录患者发声的频率、音调和音域。
Methods Video-stroboscopy was used to reveal the laryngeal cavity and dynamic changes of the vocal fold, and sound spectrograph was used to examine audio frequency, pitch and width.
方法用频闪喉镜显示患者喉和声带的动态变，用声门分析仪检录患者发声的频率、音调和音域。
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