病理性噪音起音声学特征分析及个案研究

发布时间：2018-05-05 11:01

本文选题：起音 + OQ　；参考：《华东师范大学》2011年硕士论文

【摘要】：对嗓音的声学研究通常采取发长元音截取稳定段的声波对一些声学参数如NNE, Jitter, Shimmer等进行分析,本研究采用逆滤波技术下的声门类参数OQ、SQ、STF、OQ,对元音的起音振动阶段瞬态声波进行提取分析,总结其特点。另外,选择一个嗓音障碍患者进行个案研究,为临床治疗提供参考。病理性嗓音起音声学特征研究内容及结果分为以下几个方面： 1、用于起音阶段声学参数测试的语料研究本研究为不同语料在声门类参数上对于异常嗓音鉴别的影响。分正常嗓音组和异常嗓音组两部分被试。正常嗓音组被试随机抽取华东师范大学2010级、2011级本科生及研究生38名,其中男生20名,女生18名；异常嗓音被试来自江苏省海门市人民医院耳鼻喉科和上海市岳阳医院耳鼻喉科采集的患有喉炎、声带息肉,声带小结、声带麻痹的嗓音异常患者共52名,其中男性23名,女性29名,对其分别进行标准化录音。针对四个声门类参数,将研究分为四个实验,均为2*2*4的三因素混合实验设计。因变量分别为4个参数OQ、SQ、STF、AQ的值。实验结果：(1)语料类型在任一参数值上的主效应均显著,而语料间的交互作用不显著。说明对于四种参数值而言,选择何种语料并无很大影响。(2)语料/(?)/的OQ值在被试类型上的主效应显著,说明其对于区分不同的被试类型有高度敏感性,而其余语料/a/、/i/、/u/在四个参数上均不显著,说明对于区分不同的被试类型,它们的敏感性都是比较低的。 2、不同嗓音疾病在起音振动阶段的客观参数分析选取不同嗓音疾病,喉炎、声带息肉、声带小结、声带麻痹的嗓音异常患者共52名,其中男性23名,女性29名进行实验。实验为4*2的两因素实验设计,自变量一为疾病类型,被试间变量,有3个水平：喉炎、声带息肉,声带小结,声带麻痹；自变量二为性别,被试间变量,有2个水平：男,女；因变量为参数OQ的值。实验结果：在区分喉炎、声带息肉、声带小结、声带麻痹这四类嗓音疾病时,OQ值无显著性差异。这说明声门类参数OQ不能鉴别不同的疾病类型。
[Abstract]:Acoustic studies of the voice usually use long vowels to intercept the sound waves of the stable segment to analyze some acoustic parameters such as NNE, Jitter, Shimmer, etc. In this study, the acoustic threshold parameter OQN SQSTF OQ was used to extract and analyze the transient acoustic waves in the initial vibration stage of vowels, and its characteristics were summarized. In addition, a patient with voice disorders was selected for a case study to provide a reference for clinical treatment. The contents and results of the study on acoustic characteristics of pathological voice are as follows: 1. Research on the corpus of acoustical parameter testing in acoustical stage This study is about the influence of different corpus on abnormal voice identification. They were divided into normal voice group and abnormal voice group. 38 undergraduates and postgraduates of grade 2010 of East China normal University were randomly selected from normal voice group, of whom 20 were male and 18 were female. The abnormal voice was collected from the Department of Otorhinolaryngology, people's Hospital of Haimen City, Jiangsu Province, and the Department of Otorhinolaryngology, Shanghai Yueyang Hospital. There were 52 patients with abnormal laryngitis, vocal cord polyps, vocal nodules, and vocal cord paralysis, among whom 23 were men. 29 women were recorded in standardized recording. According to the four acoustic door parameters, the study is divided into four experiments, all of which are three factors mixed experiment design. The dependent variables are the values of four parameters, OQ, SQS, STF, and AQ, respectively. The main effect of the data type on any parameter value is significant, but the interaction between the data sets is not significant. It shows that for the four parameter values, the main effect of the OQ value of / on the type of subjects is significant, indicating that it is highly sensitive to distinguish different types of subjects. The other data, however, are not significant in four parameters, indicating that they are less sensitive to differentiating different types of subjects. 2. Objective parameter analysis of different voice diseases in the sound vibration stage A total of 52 patients with different voice diseases, laryngitis, vocal cord polyps, vocal nodules and vocal cord paralysis were selected, including 23 males and 29 females. The experiment was designed for two factors: one was disease type, the other was intertrial variable, there were three levels: laryngitis, vocal cord polyp, vocal cord nodules, vocal cord paralysis, independent variable two was sex, there were two levels: male and female; The dependent variable is the value of the parameter OQ. Results: there was no significant difference in OQ between laryngitis, vocal cord polyps, vocal nodules and vocal cord paralysis. This indicates that the threshold parameter OQ can not distinguish different disease types.
【学位授予单位】：华东师范大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：R767.92

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