양성(良性) 성대 점막 질환의 음향학적 특성에 관한 연구

The purpose of this study is to find features in acoustics and to learn useful features of parameters in order to distinguish laryngeal diseases through many acoustic variables. The subjects of this study were 125-male patients who had been diagnosed with vocal nodule, vocal polyp, vocal cyst, Reinke’s edema, leukoplakia. To research the features of each disease in acoustics, they are measured 34 parameters by using MDVP. The results are listed below. First, It is clear that in order to see a meaning result when distinguishing laryngeal diseases, F0, MF0, T0, Fhi, Flo, PER variables are significant. It means that variables related to fundamental frequency are important to anticipate which group will be diagnosed with Reinke’s edema and leukoplakia. Second, vAm had an effect on getting a significant result in terms of amplitude perturbation parameters, which is useful to distinguish laryngeal diseases. Third, ATRI made a significant result in related to tremor parameters, which is useful to discern laryngeal disease. It means that ATRI is an important factor when forecasting which group would be diagnosed with vocal polyp. In the conclusion, F0, MF0, T0, Fhi, Flo, PER, vAm, ATRI might be meaningful parameters distinguishing pathologic from benign laryngeal diseases. The Purpose of this study at investigating characteristics of stuttering of stutterers according to auditory feedback types.