腭裂患者语音评价系列研究(三)——应用普通话单元音三维声学模型评价腭裂儿童元音特征的初步研究  

SERIAL STUDIES ON OBJECTIVE EVALUATION OF SPEECH OF CHILDREN WITH CLEFT PALATE(3)——Study on Acoustic Characteristics o f Chinese Vowels of Cleft Palate Thro ugh the Establishment of Three Dimen sional Model

作　　者：封兴华[1] 张立军[1] 何亚会[1] 宗小娜[2] 

机构地区：[1]第四军医大学口腔医学院口腔颌面外科 [2]第四军医大学西京医院耳鼻喉科,陕西省西安市710032

出　　处：《中国美容医学》2002年第5期463-465,共3页Chinese Journal of Aesthetic Medicine

摘　　要：目的:应用普通话单元音三维声学模型,评价腭裂儿童的音声问题。方法:利用语音声学分析软件SA1.5对37名腭裂术前儿童进行单元音犤a犦、犤o犦、犤e犦、犤i犦、犤u犦、犤ü犦的语音频谱分析,测得共振峰频率。以三个共振峰频率的的算术标度分别为x、y、z轴坐标,利用数学软件Matlab5.3建立腭裂儿童三维声学模型并与正常儿童模型进行比较。结果:正常模型的形态典型,立体感强;腭裂儿童由于存在共振峰频率的漂移,除犤a犦音以外,各元音的空间位置均发生了很大变化,三维模型缺乏空间感。正常与腭裂模型差别明显。结论:三维声学模型直观、全面而客观地反映了腭裂儿童音声特点,可实现对腭裂儿童单元音客观评价。Objective:To establish the acoustic three -dim ensional model of CP by which the spee ch is evaluated.Methods:The first three formants of Chinese vowels of 37cleft palate children were measure d and analyzed with Speech Analyzer 1.5and the acoustic three dimensional model was established w ith software Matlab 5.3to compare wi th normal one.Results:Three dimensional appeal of normal model is better than the abnormal one because the shift of formant of CP exc ept .The CP model shows the spatial change of ubiety of vowel and the difference from normal one,in fact,the CP model is anomalou s.Conclusion:The establishment of acoustic three dimen-sional model is an effective way for e valuating the speech of CP objective ly.[

关 键 词：正常儿童 腭裂儿童 普通话单元音 共振峰 三维声学模型 语音评价 

分 类 号：R782.2[医药卫生—口腔医学]