Music – Instruments – Electrical musical tone generation
Patent
1992-07-06
1993-09-28
Perkey, W. B.
Music
Instruments
Electrical musical tone generation
84DIG17, G10H 132
Patent
active
052488462
ABSTRACT:
Keyboard instruments incorporating sound systems for generating musical tones are disclosed. In a first keyboard instrument, speakers are mounted near a keyboard, and are arranged upright to be directed to the keyboard on the front side, thereby allowing a performer to clearly grasp the sound quality of performance tones. In a second keyboard instrument, which comprises a Helmholtz resonator consisting of a resonance port and a cabinet, an electro-acoustic transducer mounted on the outer surface of the cabinet and a driver for driving the transducer so as to cancel an air counteraction from the resonator, the size of a sound system is reduced, and the frequency characteristics, especially the low-frequency reproduction characteristics of the sound system are improved.
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Koike Tatsuhiro
Misawa Yoichi
Suzuki Toshiyuki
Perkey W. B.
Yamaha Corporation
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