| 摘要 |
An electric contrabass has a bridge structure (17) on a body (16) in which an inner space (23) is defined, and the body (16) is further formed with a slit (26) under the bridge structure (17) so that the lid (20) of the body (16) vibrates like a cantilever; a vibration sensor (18) is provided inside the body (16), and has a vibration sensitive surface (18a) held in contact with the lower surface of the lid (20); while a player is bowing the strings (11), the vibrating strings (11) excite the lid (20) through the bridge structure (17), and the vibrations of the lid (20) is converted to an electric signal through the vibration sensor (18); since the distance from the vibrating strings (11) and the single vibration sensor (18) is approximately equal, the single vibration sensor (18) produces the electric signal without undesirable imbalance and interference. |
