高海拔地区儿童嗓音的倒谱分析

文献信息

中文摘要

目的： 本研究的目的是调查元音的倒谱峰突出（CPP），并使用声学分析仪将来自高海拔地区儿童的客观数据与低海拔对照组进行比较。
方法： 参与者被分为高海拔组（居住在青藏高原）和对照组。每位参与者被记录发出持续元音/a/。所有音频样本均使用Praat软件进行声学分析。通过测量倒谱峰突出（CPP）和基频（f0）对元音进行声学分析。
结果： 我们的分析显示，与对照组相比，高海拔组的CPP值较低，f0值较高。
结论： 分析结果显示，与对照组相比，高海拔组的CPP较低，f0值较高。高海拔组较低的CPP可能由干旱气候与喉部肌肉异常紧张的可能耦合来解释。

英文摘要

OBJECTIVES: The purpose of the present investigation was to survey the CPP of vowel sounds and compare, using an acoustic analyzer, objective data obtained from children in high-altitude areas with low altitude control.
METHODS: Participants were divided into a high-altitude group(residing at Tibetan Plateau) and a control group. Each participant was recorded phonating the sustained vowel /a/. All audio samples were subjected to acoustic analysis using the Praat software. The vowels were analyzed acoustically by the measurement of cepstral peak prominence (CPP) and fundamental frequency (f0).
RESULTS: Our analysis revealed lower values of CPP and higher values of f0 in the high-altitude group in comparison with the control group.
CONCLUSIONS: Results of analysis revealed lower CPP and higher f0 values in the high-altitude group compared with those in the control group. Lower CPPs in the high-altitude group could be explained by the possible coupling of an arid climate and abnormal tension in the laryngeal muscles.