Observation and analyses on voice changes in the normal aged

VernacularTitle:正常老年人嗓音变化的观察与分析
Author: Ying LIANG ; Weining HUANG ; Cheng ZHANG ; Qingru MENG ; Lijun YANG
Publication Type:Journal Article
Keywords: Aged Voice quality Sound spectrography
From: Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2000;(11):512-514
CountryChina
Language:Chinese
Abstract: Objective:To measure the voice samples of the normal aged in order to systemically study the fea-tures of the voice changes. Method :To collect and analyze 146 voice samples of the normal aged with sonogram.Result:The fundamental frequency of the voice of the aged decreases and rises in the male more than 80 yearsolder. The low frequency harmonics are regulation and the intensity is strong in the formant of the aged. Thedifference reduces in voice between male and female. The harmonics to noise ratio tends downwards and the am-plitude perturbation quotient tends upwards along with the growth of age in the aged male. The changes of the above-mentioned parameters are not significant in the aged female. Conclusion:The voice changes are normalphysiological ones in the normal aged. The changes of the parameters are used to evaluate normal aged voice andabnormal one. The changes show that the function in the aged phonation tends to decline to a certain extent andit must be protected and be trained.