Research On Prenasalized Consonants Of Nisu Dialect Of Yi In Honghe

Prenasalized consonants are a special consonants in Yi language,which is mainly distributed in northern,eastern and southeast dialects of Yi language,while southern dialects generally think that prenasalized consonants has disappeared.This paper takes the prenasalized consonants of Honghe Nisu dialect in the southern Yi dialect as the research object,and based on the field investigation corpus,analyzes the basic characteristics of the prenasalized consonants and the acoustic characteristics of duration and intensity by experimental analysis,and compares it with the prenasalized consonants of northern,eastern and southeast Yi dialects.Finally,based on previous studies,it discusses the correspondence between the prenasalized consonants of Honghe Nisu dialect and the ancient Tibetan-Burman language.This paper consists of six parts:The introduction introduces the reason of the topic selection,the purpose and significance of the research,the research methods,the research objects,the related research status,the existing standard of prenasalized consonants,and the phonetic system of Honghe Nisu dialect.The first chapter introduces the investigation and research design of the prenasalized consonants of Honghe Nisu dialect,including investigation steps and methods,data collection and analysis,and experimental methods and theories.In the second chapter,through the experimental analysis of the prenasalized consonants in Honghe Nisu dialect,the basic characteristics of the nasal crown sound and the acoustic characteristics of duration and intensity are obtained,which proves that the prenasalized consonants does exist in Honghe Nisu dialect.The third chapter discusses the differences in the basic characteristics,duration and energy characteristics between the prenasalized consonants of Nisu dialect in Honghe and other dialects in Yi language through the comparative analysis of the prenasalized consonants of Nisu dialect in Honghe and northern,eastern and southeast dialects of Yi language.The fourth chapter discusses the correspondence between the prenasalized consonants of Honghe Nisu dialect and the ancient Tibetan-Burman language.Through the comparison of Honghe Nisu dialect with ancient Tibetan,relative languages and reconstructed Proto-Burmo-Yi language,it is found that the prenasalized consonants and the main Corresponds to the prenasalized consonants,voiced stop,and nasal sounds of ancient Tibeto-Burman.The conclusion summarizes the research of the full text,sums up the conclusions and shortcomings of this paper,and finally makes ideas on how to deepen the research on the prenasalized consonants in Nisu dialect of Honghe.