Yang Zengjie, Fan Jincai, Tian Jia, Liu Liqiang, Gan Cheng, Zhang Tiran, Liu Zheng, Han Bing
Ninth Department of Plastic Surgery, Plastic Surgery Hospital of Chinese Academy of Medical Sciences, Beijing, China.
Ninth Department of Plastic Surgery, Plastic Surgery Hospital of Chinese Academy of Medical Sciences, Beijing, China.
J Voice. 2018 May;32(3):285-290. doi: 10.1016/j.jvoice.2017.05.008. Epub 2018 Jan 12.
The purpose of this study was to survey the spectral characteristics and to compare, using an acoustic analyzer, the objective data obtained from patients with cleft palates with the objective data of normal children using long-term average spectra (LTAS) analysis.
Participants were divided into a clinical group and a control group. All participants were asked to practice reading a sentence to become fluent. The duration of each recording was about 60 seconds. All samples were subjected to acoustic analysis using Praat software. All recordings were analyzed acoustically using LTAS.
In this study, there was no significant difference between the control group and the clinical group in the low-frequency region (boys: 0-2720 Hz; girls: 0-2240 Hz). LTAS measurements showed a great difference between the control group and the clinical group in the middle-frequency region (boys: 2720-4000 Hz; girls: 2240-4000 Hz). We also found that the energy distributed in the clinical group was lower than that of the control group in the high-frequency region (4000 Hz-8000 Hz) in both boys and girls.
The results reveal a lack of flat region in the middle-frequency range in the clinical group (both boys and girls) in comparison with the control group. The results also reveal that there is no significant difference across the control group and the clinical group in the low-frequency region.
本研究旨在调查腭裂患者的频谱特征，并使用声学分析仪，通过长期平均谱（LTAS）分析，比较腭裂患者与正常儿童的客观数据。
参与者分为临床组和对照组。所有参与者被要求练习朗读一个句子直至流利。每次录音时长约60秒。所有样本均使用Praat软件进行声学分析。所有录音均采用LTAS进行声学分析。
在本研究中，对照组和临床组在低频区域（男孩：0 - 2720赫兹；女孩：0 - 2240赫兹）无显著差异。LTAS测量显示，对照组和临床组在中频区域（男孩：2720 - 4000赫兹；女孩：从2240 - 4000赫兹）存在很大差异。我们还发现，在高频区域（4000赫兹 - 8000赫兹），临床组男孩和女孩的能量分布均低于对照组。
结果显示，与对照组相比，临床组（男孩和女孩）在中频范围内缺乏平坦区域。结果还表明，对照组和临床组在低频区域无显著差异。
