強化学習を用いたバイオリン演奏ロボットの動作生成システムに向けて

ー擦弦位置による音圧の影響ー

抄録

We are building a system to automatically determine the bowing motion of a violin-playing robot using reinforcement learning. Currently, we use the sound pressure, which is calculated only from the bow speed, as a parameter for the performance evaluation in the simulation, because it is difficult to use the real sound in the learning process. However, the bow force changes with the position of the bow attached to the string, resulting in the change of the sound pressure. Thus, we must take the bow position in to consideration when calculating the sound pressure in addition to the bow speed. Therefore, the goal of this study is to investigate the effect of the bow position on the sound pressure through experiments. The experimental results show that the sound pressure increase when the bow position approaching the bridge.