腭咽闭合不全患者异常声学特点的分析研究

目的:应用VS99-CSL计算机语音声学频谱分析评估系统对病理性语音中的部分元音、辅音音频语图特点进一步分析研究,给予先天性腭咽闭合不全的诊断与治疗提供理论及临床支持。方法:采集单纯性先天腭咽闭合不全患者22例。评估咽成形术后及腭裂术后26例,上述患者针对咽腔情况视诊、blowing test测验及雾镜实验测试综合分析,对较难判断的病例可结合CT进行诊断,单元音:a、o、e、i、ü]辅音;擦音s、x]、塞擦z、j、c、q]实施语音评估对其单元音共振峰和额外共振峰及辅音和元音节的频谱特点进行分析、同时比较各组空白间隙、冲直条、噪音乱纹的出现率,并设定正常对照组。结果:比较发现a]的共振峰普遍残缺,而iü]会出现额外附加共振峰,其共振峰均值F1咽成形术后较高,先天性腭咽闭合不全则低。擦音s、x]、塞擦音z、j、c、q]实施语图对频谱特点进行分析、同时比较各组空白间隙、冲直条、噪音乱纹的出现频率,嗓音起始时间(voice onsettime,VOT)以及语音清晰度,P<0.01说明正常对照组与病例组有显著性差异。结论:CSAS能客观评价腭咽闭合不全,其获得的语图及相关物理声学参量对腭咽闭合不全临床治诊疗提供理论依据。

The Study Analysis of Velopharyneal Incompetent' Abnormal Speech Characteristics

Objective: To further study the vowel,consorant oudio langnagechart in pathology speech using VS99 CSL compinter system,and to provide support for the diagnosis and treatment of velopharyneal incompetent.Methods: Collecting different types patients of 22 cases.After VS99 CSL computer system for assessing the acoustic assessment were behind operation pharyngoplasty patiens and cleft palate 26 example,behind operation of palate,Pharynx situation in the visit,blowing test test and fog in the experiment to test the overall analysis,the more difficult to judge the case may be combined with a diagnosis,single pure vowel.: .A consonant and affricatezs: z、j、c、q] and also relativel of sound voice to their resonance and the extra resonance peak and consonants and Vowels on the spectral analysisy every blank space,ran straight,the noise of turbulence in accordance with the rate of local conditions in the speech therapy,and set the normal.Results: On the patient’s cells sound resonance the comparative found a resonance peak a] is defective,and 、üwill add extra resonance and the peak of its resonance averageF1 flap was higher,congenital made after it closed not the low.Consonantal sounds in the x] and z]’s,z、j、c、q] are the implementation of the spectrum features analysis,the more every blank space,ran straight,the noise of turbulence of the frequency and the voice onset time,Kruskal-by Wallis Test,P<0.01 normal control group and the case group that was significant difference.Conclusion: Vs99-CSL computer voice acoustic appraisal system will be able to assess congenital mouth is closed to all the patient was not made to the extent to which was closed The study behind operation pharyngoplasty failure-Shed off pharyngeal flap off behind speech treatment Methods.