心理実験によるバイオリン演奏における音色表現語とボーイングパラメータの関連付け(3部 モデルによる探索)  [in Japanese] SENSORY TEST RELATING TIMBRE WORDS TO BOWING PARAMETERS IN VIOLIN PLAYING  [in Japanese]

Recently, human skills have received a great deal of attention from researchers. Human skills have two aspects: one is motion ability and the other is spiritual ability. Violin playing, which involves both skills, was selected as an example. In this paper, we focus on Kansei as the spiritual ability in human skills. Kansei is a Japanese word that is similar in meaning to sensibility. Kansei affects human motion. The effects of Kansei on human motion have not been clarified, however. In this paper, timbre words, which are adjectives such as "bright", are considered as Kansei information, and playing parameters are considered as motion parameters. In a previous paper, the relationship between timbre words and playing parameters was analyzed in terms of a professional violinist's performance. As the next step in this study, we will analyze a listener's Kansei. The goal of this paper, therefore, is to clarify the relationship between timbre words, bowing parameters, and harmonic tone patterns from the results of sensory tests and sound analyses using fast fourier transforms (FFT). First, the process of converting a musical score into human motion that can play musical instruments is discussed and the five items of information are analyzed. These items are musical score, image, sound information, playing parameters, and playing motion. We assume that Kansei affects the process of converting a musical score into playing parameters. In order to analyze the relationship between timbre words and the three bowing parameters, we performed sensory tests on a single violin sound. Violin sounds were produced by a bowing machine that we constructed. This machine can control three bowing parameters. Each bowing parameter was set at three scales, and the sounds were evaluated by eleven subjects using twelve timbre words. The sounds were then analyzed using FFT. From the analysis of the data, we clarified the relationship between bowing parameters and timbre words, and derived the following results; (1) Eight timbre words of the twelve contributed to sound evaluation. The eight timbre words were divided into two groups: "bright" and "lean." (2) The harmonic tone patterns were divided into five groups, and two of them were evaluated by eight timbre words. (3) Bow force and sounding point (the place where the bow touches the string) affected the image of violin sounds.