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验证两种微创方法在人发声时估计声带接触压力。

Verification of two minimally invasive methods for the estimation of the contact pressure in human vocal folds during phonation.

机构信息

McGill University, McDonald Engineering Building, 817 Sherbrooke Street West, Montreal QC, H3A 2K6 Canada.

出版信息

J Acoust Soc Am. 2011 Sep;130(3):1618-27. doi: 10.1121/1.3613708.

Abstract

The contact pressure on the vocal fold surface during high pitch or amplitude voice production is believed to be one major source of phonotrauma. Models for the quantitative estimate of the contact pressure may be valuable for prevention and treatment. Various indirect and minimally invasive approaches have been purported to estimate contact pressure. But the accuracy of these methods has not yet been objectively verified in controlled laboratory settings. In the present study, two indirect approaches for the estimation of the contact pressure were investigated. One is based on a Hertzian impact model, and the other on a finite element model. A probe microphone was used for direct measurements of the contact pressure and verifications of the indirect approaches. A silicone replica of human vocal folds was used as a test bed. Consistent contact pressure estimations were obtained using all three methods. The advantages and disadvantages of each approach for eventual clinical applications are described.

摘要

在高声或大幅度发声时,声带表面的接触压力被认为是语音创伤的主要来源之一。定量估计接触压力的模型对于预防和治疗可能具有重要价值。已经提出了各种间接和微创方法来估计接触压力。但是,这些方法的准确性尚未在受控的实验室环境中得到客观验证。在本研究中,研究了两种用于估计接触压力的间接方法。一种基于赫兹冲击模型,另一种基于有限元模型。探针麦克风用于直接测量接触压力并验证间接方法。用人造硅胶声带复制品作为测试平台。使用所有三种方法都可以获得一致的接触压力估计值。描述了每种方法最终用于临床应用的优缺点。

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