| 摘要 |
PURPOSE:To widen a range of performance activities by converting the performance tones of a koto (Japanese harp) to electric signals without impairing sound quality and timbres. CONSTITUTION:A sensor 1 or a transducer, such as microphone, is aranged in the recessed part on the rear surface of a bridge 11 or the inside surface of a sound plate 10a and the vibrations thereof are picked up, are amplified by a composite 15 of an output jack and a preamplifier and are outputted outside. Large output is obtd. by utilizing an external tone control and power amplifier and the concert with electric musical instruments is made possible. The range of activities is widened. And the signal of good S/N ratio is obtainable as the preamplifier is providen in a frame of the koto. |
