Voice Spectrum Analysis in Normal Adults / 听力学及言语疾病杂志

Acoustic parameters of 145 normal adults (18-80 years old) were measured with Universal Signal Spectrum Analysis System. The results showed that fundamental frequency (F0) ,the second and third formant (F2, F3 ) , frequency perturbation quotient (FPQ) between male and female in same age as well as amplitude perturbation quotient (APQ) between two sexes in young and middle age were statistically different. APQ reduced with the growing of age but increased obviously after 60 years old in male. F0 rose in old man but decreased significantly in old woman. The article indicated that voice had distinctive features in different sex or age, which could provide objective grounds for clinical voice evaluation.