Experimental Study On Chinese Unaspirated Plosive Of Korean Learners

Korean plosives are divided into Lenis & Fortis and aspirate,while Chinese plosives are divided into unaspirate and aspirate.Both of them have aspirated sounds,but unaspirated plosives in Chinese correspond to two opposite phonemes in Korean--Lenis & Fortis.Therefore,this paper mainly explores whether Korean learners are influenced by Korean when learning Chinese unaspirated plosives,and whether their Chinese unaspirated plosives are influenced by Korean Lenis or Fortis.In view of the relationship between Lenis&Fortis and pitch performance,this paper intends to further explore whether this phenomenon has an impact on the learning of Chinese tones.Based on Sound Pattern Theory,this paper uses acoustic experiments to record and analyze eight Korean learners in the Chinese Culture Teaching Center of East China Normal University.The vocal onset time(VOT)and the occlusion duration(GAP)are used to construct the Korean's plosive pattern and the Korean learners' Chinese plosive pattern.Firstly,the characteristics of their respective plosive patterns are compared with those of native speakers.It is found that Korean learners' Chinese unaspirated plosives are influenced by their mother tongue Lenis in the length of breathing and the tension of their pronunciation parts.Their Chinese unaspirated plosives are between Chinese unaspirated plosives and Lenis.After normalizing the pitch data,the paper draws the tone patterns of Korean learners' four tones.It is found that Korean learners' first and forth tone are basically similar to those of native speakers,and there is confusion in second and third tone.Then the T method of Shi Feng was used to calculate the initial pitch of the pronunciator's tone,and the average VOT and GAP of the four tones with the unaspirated plosives as the initial consonant were counted.By comparing the average GAP of the four tones with the initial pitch of the four tones,it was found that Korean learners' initial pitch of first,second and third tone was higher than that of the nativespeakers.By comparing the patterns of plosives,the author believes that Korean learners are affected by Korean Lenis when learning Chinese unaspirated plosives.Through the analysis of Korean learners' unaspirated plosive tones,it is found that first,second and third tone are lower in initial pitch.Influenced by the mother tongue's Lenis,Korean learners have errors in the study of Chinese intonation,such as first,second and third tone,which is a phenomenon that their initial consonants are affected by the assimilation of their mother tongue.In addition,Korean learners have a good command of forth tone in both tone type and initial pitch,but there are very few speakers whose unaspirated plosives tend to be Fortis in their mother tongue because the first and forth tone are high-pitched.