クラシックギターのエイジング効果について

抄録

We have studied the sound quality improvement of the classical guitar. The running-in of really playing on the guitar as well as the manufacturing process of guitar gives the large influence to the sound quality. It is called an aging effect. It is important that the behavior of the aging effect is considered on the manufacturing process. Using the aging method of giving the continuous acoustic excitation to a new guitar, the period of the aging is shortened and we were able to confirm the change of the sound quality by the aging effect. Besides, it is clear that the excessive heavy aging gives the aged guitar the less sound expression performance.