| 摘要 |
In an implementation of this invention, a stringed musical instrument has a resonator comprised of a bridge and a soundboard. Vibrations from the strings are transmitted through the bridge to the soundboard. A plurality of sensors are attached to or embedded in the soundboard. The sensors measure primarily the vibrations of the soundboard, rather than primarily the vibrations of the strings. Preferably, three or more sensors are used. Piezoelectric sensors sample vibrations in the soundboard. The resonator includes a printed circuit board that amplifies the signal from each sensor separately. Also, a signal processing device that is “onboard” the musical instrument processes the separate input signals to create one output signal. The resonator may be easily removed, enabling resonators to be interchanged. Also, the physical characteristics of a particular resonator, such as its mass or its boundary condition, may be adjusted, thereby changing the acoustic qualities of the soundboard. |
