[The phonetic development of normal-hearing pre-school children].
OBJECTIVE
To collect the daily speech materials and to discuss the speech development of normal-hearing pre-school children.


METHODS
Based on the database of daily speech materials of children who are 3 to 5 years old, from separate monosyllabic word to syllable,analysis the frequency of words and compare them with adults.


RESULTS
In the spoken words of children who are 3 to 5 years old, we can find all Mandarin phonemes. With independent sample t test, it was shown that there is no significant difference in the distributing of phonemes between children and adults.


CONCLUSIONS
Children who are 3 years old have developed the phonetic system of the language basically.
Liu
Sha
S
Beijing Institute of Otolaryngology, Beijing Tongren Hospital of Capital Medical University, Beijing, 100005, China. liusha_ls@sohu.com
Han
Demin
D
Wu
Xuan
X
Mo
Lingyan
L
Chen
Xueqing
X
Zhang
Ning
N
Yang
Yilin
Y
Kong
Ying
Y
D000328:Adult; D001301:Audiometry, Pure-Tone; D002675:Child, Preschool; D006309:Hearing; D006801:Humans; D007804:Language Development