Study On Airflow Of Mandarin Pronunciation Of 6-8-year-old Children

The research on speech airflow of Mandarin is still in its infancy in China.The research on speech aerodynamics of children's Mandarin is very few.This paper is based on the air flow barometer to study children's pronunciation air flow of Mandarin syllables.The air flow data of different phonemes in the syllable structure can be collected from the Chinese Putonghua syllables made by children.The air flow parameters of the whole syllable can also be collected.The air flow parameters of different phonemes in the syllable structure can also be obtained by marking the position of each phoneme in the syllable.The influence degree of different phonemes on each other can be analyzed by using the theory of cooperative pronunciation.In this way,we can fully understand the airflow characteristics of children's syllable structure in Mandarin.By analyzing the data of the initial pronunciation air flow,the zero vowel pitch pronunciation air flow,the internal consonant pronunciation and the air flow of the whole syllable,we can get the following conclusions:(1)The average airflow velocity of the stops decreased with the back of the articulation position.In the affricated consonants,the duration and the average air velocity of the aspirated affricated consonants are longer than those of the non aspirated affricated ones,and the duration of the aspirated tongue sounds is longer.The duration of the consonant of the voiceless fricative is the longest,and the average air velocity is greater than that of the voice fricative.The average air velocity of the fricative in front of the tongue is the highest.The duration of the laterals sound is longer than that of the stop and nasal sound,and the duration of the nasal sound is longer than that of the non aspirated stop and affricate.The average air velocity of the laterals sound is higher than that of the nasal sound.(2)[i] [y] due to the front part of the pronunciation,it will have an impact on the pronunciation air flow of the rhyme body connected at the back,resulting in "smooth inhibition".On the contrary,when the pronunciation part of [u] is backward,its pronunciation air flow will be affected by the connected rhyme body at the back,resulting in "inverse inhibition".In the same pronunciation environment,the average air velocity of the final ending pronunciations is higher than that of the final ending pronunciations.[u] in syllable structure,the average air velocity of pronunciation isless than that of self syllable formation.The air flow of vowel pronunciation is affected by the position of tongue and the shape of lip,which is consistent with the acoustic conclusion of vowel pronunciation.(3)It can be known from the study of the phenomenon of cooperative pronunciation in syllables that the critical value of the average air velocity specific gravity to distinguish whether the stop consonant is aspirated or not is about 3.5 ml / s.It can be seen that the parameters of the air flow in the front and front of the tongue are similar,and the parameters of the air flow in the back of the tongue are not stable.The critical value of the specific gravity of the average air velocity to distinguish whether the fricative consonant is aspirated or not is about 2.5 ml / s.(4)By studying the air flow rate of the whole syllable,we can know that the air flow rate of the aspirated initial syllable is larger than that of the non aspirated initial syllable,so the air flow rate has a great influence on the throttle flow rate.The pronunciation part of the initial has a great influence on the air flow of the whole syllable,while the pronunciation air flow of the initial has a great influence on the air flow of the whole syllable.From the point of view of the structure of the initial syllable,the number of phonemes in the syllable also does not affect the air flow data of the syllable,and the air flow data of the pronunciation has no corresponding relationship with the vowel.