The purpose of this study was to examine the tendency and reality of how the long and short sounds of the Japanese vowels are calculated and realized of beginners by focusing on the length of the duration and F0. The results are as follows.
(1) As a result of examining the ratio of duration to long vowels and short vowels, in the case of the Japanese, the length of the time increased at a relatively constant rate as the number of Mora increased. On the other hand, in the case of Korean learners, unlike the Japanese results, the length of time corresponding to one mora did not increase at a constant rate. This is thought to be the result of proving that Korean learners do not have time control as much as Japanese.
(2) As a result of comparing the lengths of the durations for the minimum confrontation of the long and short divisions, the lengths of the relatively constant time for each word were not maintained for both Japanese and Koreans. This result suggests that only the length of time cannot be the determining factor for vowel length.
(3) In the result of the F0 pattern, for Korean learners, the basic pattern regardless of the presence or absence of long and short sounds, is the descending tone for 2 Mora, the ‘mountain’ pattern for 3 Mora, the ‘へ’ pattern for 4 Mora and 5 Mora.
From the above results, it is considered that the following two aspects should be considered in order to provide voice guidance for the long and short sounds of Japanese vowels. First, you will need to provide basic knowledge about the units of Japanese rhythm. Second, if pronunciation education is done by visualizing information on the kernel of Japanese accents and pitch curves, it is expected that it will lead to the acquisition of Japanese that is close to the native speaker desired by the learner.