韓国人学習者の日本語自然音声に現れた ピッチパターンの傾向

Abstract

This study explains the characteristics that patterns learners pronounce words with pitch patterns in spontaneous speech by focusing on effectiveness of rise and fall. The survey result shows that the percentage of correct answers was low with 25.1% and learners of advanced courses could not learn accents. As for learners' pitch pattern trends, there are many cases (46%) in which the height of the 1st sound is the same with that of the 2nd sound. There is no pitch pattern like this in Japanese in that height of the 1st sound is different from that of the 2nd sound in the characteristics of Japanese accents. As for the number of mora, mora 2 tends to be pronounced with the pitch that does not fall. As for mora 3 and mora 4, the tendency of the pitch patterns that fall after making the 1st and 2nd sounds high and rise was observed. Furthermore, mora 4 could be found that middle and high(中高型) accents that fall can easily be created in words with numerous mora as the percentage of correct answers of 0 type without fall gets low, As for learners' pitch patterns that were greatly influenced by the voiced characteristics (有声性) of initial sound (語頭音), voiceless sounds of initial sound have found that the 1st sound or the 1st and 2nd sounds tend to be pronounced to be high. And voiced sounds of anlaut have found that the 1st sound tends to be pronounced to be low. The precedent studies that the core can easily come to heavy syllables including special mora have found that effects by heavy syllables were not observed through this survey and words including them are greatly influenced by voiced characteristics of initial sound. Change of height does not tend to be shown in heavy syllables. And change of height was not shown as 78.0% of heavy syllables included in postpositional words. Even though there are heavy syllables in the beginning of words, 68.5% of the pitch patterns has found that height of the 1st and 2nd sounds is not changed.