ヴァイオリン演奏動画と楽譜を用いた演奏記号自動記入システムの開発

抄録

When playing a piece with a bowed string instrument, it is necessary to determine the bowing in advance. This requires knowledge of the piece and a lot of time to acquire the ability to determine the bowing. Therefore, it is difficult for beginners of such instruments to determine the bowing. In this paper, we propose a system that acquires bowing and acoustic information from performance videos of a stringed instrument such as a violin and automatically writes the bowing symbols on the sheet music. This system makes it easy to refer to the bowing of a skilled player and to compare the bowing of multiple players. We believe that this system will be useful for improving a player's skill in performance techniques and his/her comprehension of musical pieces. In a validation experiment, the proposed system was able to estimate the bowing of children's songs with an accuracy rate of more than 90%.