The Study Of Air Flow And Pressure In Mandarin About Teenager

In this paper,teenagers are the object of study.using the phonatory aerodynamic system to explored the differences of air pressure signals about mandarin in different stages to reveal the development of vocal organs,the physiological model was established by using the air pressure signal parameters extracted,by means of the physiological models differences reflects physical differences,Finally,we can establish the air pressure parameters about different ages of teenagers.We combined with existing acoustic analysis,comprehensive and multi-angle description of the current situation of the pronunciation of teenagers in mandarin,to solve the problems that traditional linguistics cannot solve with air pressure parameters methods,and find the corresponding relationship between air pressure acoustic parameters and physiological parameters.Getting results of air pressure at different ages and establishing physiological parameters.In this paper,the aerodynamic parameters of vowel and consonant are extracted,the corresponding parameters such as peak air pressure,duration of the exhalation,exhalation air duration,maximum exhalation rate,average base frequency and aerodynamic resistance are extracted.The results of the study are as following:(1)The amount of air flow and the mean pitch can be found that the total volume of airflow in simple vowels is higher than middle school students,this is closely related to age,development status and lung capacity.Mean pitch of middle school students is greater than high school students,because the junior middle school stage the vocal cords is shorter and thinner,so in the process of pronounce the vocal cords vibration faster and mean pitch of junior high school students is bigger than high school students.(2)The peak pressure of high school students in Chinese mandarin is significantly higher than junior school students,indicating that the peak air pressure in the oral cavity was caused by the difference in age.Expiratory airflow duration and expiratory volume of high school students are greater than the junior school students,because of high school students as the growth of the age of lung(provide air breathing organs)gradually development stable and have a large lung capacity.Expiratory airflow duration is positively correlated with the expiratory volume which indicates that there is a close relationship between them.In this paper,the longer the expiratory airflow duration is,the expiratory volume is.(3)High school students of aerodynamic resistance charts are almost consistent with junior middle school students,and above the chart is junior high school students,it shows that the aerodynamic resistance value of the junior school student is greater than high school students,declares that the tension of the vocal cords is larger in junior high school students.(4)Teenagers in the article to read at an average rate of expiratory airflow and expiratory volume exist certain differences in gender,found that the boy is bigger than the girl in numerical ranges,due to the differences in pronunciation organs of male and female.