| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology to feed back acoustic vibration of an instrument.SOLUTION: A feedback device 20 feeds back acoustic vibration of an instrument GT, and includes an input unit C5 that receives input of an electric signal based on the acoustic vibration of the instrument as a feedback signal, and a magnetostrictor 28 that vibrates according to the input feedback signal and directly gives the vibration to a body 12 of the instrument. |
