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本文引用的文献

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Lyapunov exponents for Japanese vowels in normal adult and cleft palate speakers.正常成人和腭裂患者日语元音的李雅普诺夫指数。
Folia Phoniatr Logop. 2011;63(3):129-33. doi: 10.1159/000316322. Epub 2010 Oct 8.
2
A comparative study of two acoustic measures of hypernasality.两种超鼻音声学测量方法的比较研究。
J Speech Lang Hear Res. 2009 Dec;52(6):1640-51. doi: 10.1044/1092-4388(2009/08-0161).
3
Normal voice in children between 6 and 12 years of age: database and nonlinear analysis.6至12岁儿童的正常嗓音：数据库与非线性分析
J Voice. 2008 Nov;22(6):671-5. doi: 10.1016/j.jvoice.2007.01.009. Epub 2007 May 23.
4
Acoustic analyses of sustained and running voices from patients with laryngeal pathologies.喉疾病患者持续发声和连续发声的声学分析。
J Voice. 2008 Jan;22(1):1-9. doi: 10.1016/j.jvoice.2006.08.003. Epub 2006 Sep 14.
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Chaos in voice, from modeling to measurement.嗓音中的混沌，从建模到测量。
J Voice. 2006 Mar;20(1):2-17. doi: 10.1016/j.jvoice.2005.01.001. Epub 2005 Jun 20.
6
A comparison of oral-nasal balance patterns in speakers who are categorized as "almost but not quite" and "sometimes but not always".对被归类为“几乎但不完全是”和“有时但不总是”的说话者的口鼻平衡模式进行比较。
Cleft Palate Craniofac J. 2004 Sep;41(5):526-34. doi: 10.1597/03-075.1.
7
Vocal quality characteristics in children with cleft palate: a multiparameter approach.腭裂患儿的嗓音质量特征：一种多参数方法。
J Voice. 2004 Sep;18(3):354-62. doi: 10.1016/j.jvoice.2003.12.006.
8
Nonlinear dynamic analysis of voices before and after surgical excision of vocal polyps.声带息肉手术切除前后嗓音的非线性动力学分析
J Acoust Soc Am. 2004 May;115(5 Pt 1):2270-7. doi: 10.1121/1.1699392.
9
The relationship between temporal aspects of oral-nasal balance and classification of velopharyngeal status in speakers with cleft palate.腭裂患者口鼻平衡的时间因素与腭咽功能状态分类之间的关系。
Cleft Palate Craniofac J. 2000 Jul;37(4):363-9. doi: 10.1597/1545-1569_2000_037_0363_trbtao_2.3.co_2.
10
Determination of largest Lyapunov exponents of vocal signal: application to unilateral laryngeal paralysis.嗓音信号最大Lyapunov指数的测定：在单侧喉麻痹中的应用。
J Voice. 1999 Sep;13(3):341-54. doi: 10.1016/s0892-1997(99)80040-x.

腭裂伴或不伴高鼻音儿童元音的非线性动力学分析

Nonlinear Dynamic Analysis of Vowels in Cleft Palate Children with or without Hypernasality.

作者信息

Mishima Katsuaki, Nakano Hiroyuki, Matsumura Tatsushi, Moritani Norifumi, Iida Seiji, Ueyama Yoshiya

机构信息

The Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, Yamaguchi University, Minami-kogushi 1-1-1, Ube City, Yamaguchi 7558505, Japan.

出版信息

Int J Otolaryngol. 2012;2012:739523. doi: 10.1155/2012/739523. Epub 2011 Dec 6.

DOI:10.1155/2012/739523
PMID:22187565
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3236469/
Abstract

Objectives. To clarify the difference between Lyapunov exponents (LEs) for cleft palate (CP) patients with hypernasality versus without hypernasality and to investigate the relationship between their LEs and nasalance scores (NSs). Material and Methods. Six CP patients with severe hypernasality (mean age 9.2 years) and six CP patients without hypernasality (mean age 8.0 years) were enrolled. Five Japanese vowels were recorded at 44.1 KHz, and the NSs were measured simultaneously. The mean first LE (mLE(1)) from all one-second intervals was computed. Results. The mLE(1) for /o/ in patients with hypernasality was significantly higher than that in patients without hypernasality. The correlation coefficients between the mLE(1) and NS for all vowels were not statistically different. Conclusion. The voice signal of /o/ for the patients with hypernasality was more instable than in those without hypernasality. The chaotic phenomenon was independent of nasal resonance in CP voice.

摘要

目的。阐明腭裂（CP）伴高鼻音患者与不伴高鼻音患者的李雅普诺夫指数（LEs）之间的差异，并研究其LEs与鼻音计评分（NSs）之间的关系。材料与方法。纳入6例重度高鼻音CP患者（平均年龄9.2岁）和6例无高鼻音CP患者（平均年龄8.0岁）。以44.1 KHz记录5个日语元音，并同时测量NSs。计算所有1秒间隔的平均第一李雅普诺夫指数（mLE(1)）。结果。高鼻音患者中/o/的mLE(1)显著高于无高鼻音患者。所有元音的mLE(1)与NS之间的相关系数无统计学差异。结论。高鼻音患者的/o/语音信号比无高鼻音患者的更不稳定。CP语音中的混沌现象与鼻腔共鸣无关。