Estimating Tremor in Vocal Fold Biomechanics for Neurological Disease Characterization

P. G. Vilda, Victor Nieto Lluis, M. V. R. Biarge, Agustín Álvarez Marquina, Luis Miguel Mazaira-Fernández, R. Martínez, Cristina Muñoz-Mulas, Mario Fernández-Fernández, Carlos Ramírez-Calvo
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引用次数: 11

Abstract

Neurological Diseases (ND) are affecting larger segments of aging population every year. Treatment is dependent on expensive accurate and frequent monitoring. It is well known that ND leave correlates in speech and phonation. The present work shows a method to detect alterations in vocal fold tension during phonation. These may appear either as hypertension or as cyclical tremor. Estimations of tremor may be produced by auto-regressive modeling of the vocal fold tension series in sustained phonation. The correlates obtained are a set of cyclicality coefficients, the frequency and the root mean square amplitude of the tremor. Statistical distributions of these correlates obtained from a set of male and female subjects are presented. Results from five study cases of female voice are also given.
估计声带震颤的神经系统疾病表征的生物力学
神经系统疾病(ND)每年都在影响越来越多的老年人口。治疗依赖于昂贵、准确和频繁的监测。众所周知,ND leave在语音和发音上是相互关联的。目前的工作显示了一种方法来检测声带张力在发声过程中的变化。这些症状可能表现为高血压或周期性震颤。震颤的估计可以通过持续发声的声带张力序列的自回归建模来产生。得到的相关系数是一组周期性系数、频率和震颤的均方根振幅。从一组男性和女性受试者中获得的这些相关性的统计分布。并给出了五个女声案例的研究结果。
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