Tonal Research Of Nisu Dialect Of Yi Language In Shuangbai

This paper studies the tone of Luowu dialect of Yi language by historical comparison and experimental phonetics.We found that the tone of Luowu dia-lect has the following characteristics:1,tone splitting of Luowu dialect is affect-ed by aspiration.The *tone of the Proto-Ngwi corresponds to different tones of Luowu dialect under different *consonant types.When the consonant is *Qi-ng(清)and *Zhuo(浊),the tone corresponds to a low pitch;When the conson ant is *prefix,the tone corresponds to a high pitch.In Luowu dialect,the *Qi ng(清)of the Proto-Ngwi generally correspond to unaspirated obstructs.In the Proto-Ngwi,the consonants with *prefix generally correspond to aspirated obstr uc-ts in Luowu dialect.It is inferred that the consonant in the Proto-Ngwi is *Qing(清),and the tone is reduced by the influence of the present consonant,which is merged into the tone of the *Zhuo(浊).2,there are tense vowels in Lu-owu dialect,generally speaking,the tone of tense vowels is higher than tha t oflax vowels,but in 55 tone,tense is lower than lax.The 55 tone of the el derly pronunciation is flat,and the middle-aged pronunciation is down,which may be a phenomenon of tone evolution in Luowu dialect.The article consists of five parts:1.Introduction.The main content is to review the research of the Yi langua ge,and explain the significance of this paper.2.Luowu dialect sound system.This paper describes the phonological syste m of Luowu dialect and makes a brief comparison between Luowu dialect and Wuding nasu dialect.3.The tonal evolution of Luowu dialect.This chapter compares Luowu diale-ct with Proto-Ngwi and finds out the evolution law of Luowu dialect tone.4.An experimental study on the tone of Luowu dialect.This chapter describ e the tonal acoustic characteristics of luowu dialect.5.Conclusion.Summarizes the value and significance of this study.