A Study About Acoustical Analysis Of Evaluating Hypernasality In Cleft-Palate Speech

声学分析评估腭裂言语鼻音过多的研究

• 批准号: 62570897
• 负责人: FUKUDA Tomiko
• 金额: $ 1.22万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1987
• 资助国家: 日本
• 起止时间: 1987 至 1988
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-62570897/
• 关键词: Evaluation Of Hypernasality; Cleft-Palate Children; Acoustical Analysis; Rate of Nasal Oscillation; Voice Spedtrum of Vowel; i; Nasal-Oscillation Spectrum Of Vowel; 音響分析; 開鼻声の音響分析

We selected 10 cleft-palate children aged 7-12, surgically operated but had velopharyngeal incompetency, and as a control group, 10 children with normal phonation of corresponding ages. We analyzed /i/ in cleft group, and /i/ and /i^^-/( preceded by /m/) in control group. The method was to get (1) frequency components of phonation, and (2) those of nasal oscillation. The quotient of (belivided by (2) meant the rate of oscillation. The phonation samples were also judged acoustically by three skilled clinicians. Comparing frequency rates and acoustic-psychological judgments, we examined these two methods. The results were as follows:I. Voice spectrums of vowel /i/ in cleft-palate children were similar to those of the normal. Those of nasal oscillation, however, were different, and they were stronger than /i^^-/ in the normal.II. Rates of nasal oscillations agreed highly with acoustic-psycological judgments. We concluded that rate of nasal oscillation was useful as a method of clinical evaluation of cleft-palate hypernasality. We hope to collect more appropriate samples to develop evaluation criteria.

选择10例7-12岁腭裂患儿，经手术治疗后出现腭咽闭合不全，另取10例相应年龄段发音正常的儿童作为对照组。我们在唇裂组中分析了/i/，在对照组中分析了/i/和/i^^-/（前面有/m/）。方法：（1）获得发声的频率成分;（2）获得鼻振动的频率成分。（）与（2）的商表示振荡速率。发声样本也由三名熟练的临床医生进行声学判断。比较频率率和声学心理判断，我们研究了这两种方法。结果如下：I.腭裂儿童元音/i/的声谱与正常儿童相似。然而，鼻振动的强度不同，它们比正常人的/i^^-/强。鼻振荡率与声学心理学判断高度一致。我们的结论是，鼻摆动率是一种有用的方法，临床评价腭裂高鼻音。我们希望收集更多合适的样本，以制定评估标准。