Development of quantitative evaluation system of hypernasality

鼻音过多定量评价系统的开发

• 批准号: 04557092
• 负责人: YOSHIDA Hiroshi
• 金额: $ 7.68万
• 依托单位: University of Tsukuba
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-04557092/
• 关键词: Hypernasality; Quantitative evaluation; Octave; Cleft palate; Maxillary recection; Perceived impression; Acoustic analysis; Abnormal resonance; パワースペクトル; ケプストラム; 3次元CT; 声道断面積関数

Hypernasality attributable to abnormal resonance is one of the most frequent, severe speech disorders in the patients with cleft palate or maxillary resection. The objective evaluation of hypernasality has not been established, resulting in impairment in the diagnosis and treatment. This study was carried out to develop an objective, quantitative method for evaluating nasal resonance, in particular, hypernasality. Following results were obtained.1.After repetition of improvement for equipments, an voice analyzing system was developed. The system immediately displayd one-third octave spectra which were obtained from acoustical processing of band-pass filtered speech samples.2.Nasal resonance was acoustically assessed by this system in cleft palate patients, maxillectomy patients and normal subjects. Analysis of one-third octave spectra revealed an increase in power level between the first and second formants, and a reduction in power level in second and third regions among utterances judged to be hypernasal.3.Multiple regression analysis revealed a high correlation between the perceived severity of hypernasality by well-experienced speech pathologists and quantitative evaluation obtained by this system. This result indicated usefulness of the system.

异常共振引起的鼻音过重是腭裂或上颌骨切除术后最常见、最严重的语音障碍之一。高鼻音的客观评价尚未建立，导致诊断和治疗的损害。本研究旨在建立一种客观、定量的方法来评价鼻共鸣，特别是鼻音过强。取得了以下成果：1.经过对设备的反复改进，研制了语音分析系统。该系统能立即显示经带通滤波后的语音样本的1/3倍频程频谱。2.应用该系统对腭裂患者、上颌骨切除术后患者和正常人的鼻共振进行了声学评价。三分之一倍频程谱分析显示，被判断为鼻音过重的话语中，第一和第二共振峰之间的功率水平增加，第二和第三区域的功率水平降低。3.多元回归分析显示，经验丰富的言语病理学家对鼻音过重严重程度的感知与本系统获得的定量评估之间存在高度相关性。这一结果表明该系统的实用性。

项目成果

片岡 竜太: "3次元CTを用いた声道、鼻腔断面積の計測-口腔癌患者の術前/i/発声時について-" 日本音響学会講演論文集. 2. 253-254 (1992)

Ryuta Kataoka：“使用 3D CT 测量声道和鼻腔的横截面积 - 关于口腔癌患者的术前/i/发声 -”日本声学学会会议记录 2. 253-254。 (1992)

片岡竜太: "3次元CTを用いた声道・鼻腔断面積の計測-口腔癌患者の術前/i/発声時について-" 日本音響学会講演論文集. 2. 253-254 (1992)

Ryuta Kataoka：“使用 3D CT 测量声道和鼻腔的横截面积 - 关于口腔癌患者的术前/i/发声 -”日本声学学会会议记录 2. 253-254。 (1992)

Ryuta Kataoka: "Measurement of vocal shape using 3-D CT" Proceedings of Japanese Acoustic Society. 2. 253-254 (1992)

Ryuta Kataoka：“使用 3-D CT 测量声音形状”日本声学学会会议录。

Hiroshi Yoshida: "Quantitative Evaluation of Hypernasality in Maxillectomy Patients" Journal of the Japanese Stomatological Society.

Hiroshi Yoshida：“上颌切除术患者鼻过度的定量评估”日本口腔医学会杂志。

Ryuta Kataoka: "Spectral Properties and Quantitative Evaluation of Hypernasality in Vowels" Cleft Palate and Craniofacial Journal.

Ryuta Kataoka：“元音鼻音过多的光谱特性和定量评估”裂腭和颅面杂志。