Research of Infant Voice Pitch Based on Speech Analysis Technology

This paper takes the pitch of infants' speech as the research object, chooses 4 infants as the research target, studies the pronunciation of infants before the age of two. The infant speech database was established, and the infant speech analysis platform was developed, including automatic segment segmentation of speech samples and analysis of related acoustic parameters. After two years of tracking and recording, the characteristics and rules of phonetic pitch pronunciation of infants in pre-language stage and language stage were studied by the method of speech experiment. This study expands the vision of infant phonetics research and summarizes the phased characteristics and rules of infant phonetics development on the basis of large corpus analysis.