[Effect of age and gender to voice quality].

To investigate the influence of age and gender on the parameters of voice, in order to make baseline data for the diagnosis and therapy of voice disorders. One hundred and thirty two normal subjects were randomly selected in Shanghai, which were divided into two groups: one aged 18-40 and another aged 60-90. Each group included 33 male subjects and 33 female subjects. All subjects were assessed by VA (Tiger DRS. Inc), selected parameters including: F0, Jitter, Shimmer, NNE, CQ. The factors of age and gender had the significant difference on voice, and there were interaction between age and gender. Sensitive parameters are F0, Jitter, NNE, CQ. There are some characteristic change of voice associated with aging. There is vast difference between aging male and aging female. Furthermore, aging voice can be improved by voice training.