Electronic percussion system simulating play and response of aco

Details Electronic percussion system simulating play and response of aco Electronic percussion system simulating play and response of aco

1992-08-25

1994-03-08

Witkowski, Stanley J.

Music

Instruments

Electrical musical tone generation

84DIG12, 84DIG24, G10H 312

Patent

active

052930009

ABSTRACT:
An electronic percussion system having the look, feel and response of an acoustic drum is provided by a combination of a drum body shell, conventional drum heads held at adjustable tension across open ends of the shell, and within the interior drum cavity a sound-to-electrical transducer is embedded in layers of rubber foam filler material. The sound energy attenuating characteristics of the foam filler material prevent the transducer from being falsely triggered by ambient sound exterior to the drum, by sympathetic vibrations of the drum, and resists false triggering due to lightly, inadvertently hitting the drum stand. In a bass drum embodiment, the transducer is mounted directly between layers of low density rubber foam, while a snare and tom drum configuration includes a thin sound plate that floats between layers of rubber foam and to which the transducer element is mounted to excite the transducer by capturing sound energy from the striking head while selectively discriminating against other ambient sounds and sympathetic vibration.

REFERENCES:
patent: 3725561 (1973-04-01), Paul
patent: 4226156 (1980-10-01), Hyakutake
patent: 4279188 (1981-07-01), Scott
patent: 4581973 (1986-04-01), Hoshino
patent: 4947725 (1990-08-01), Nomura
patent: 4984498 (1991-01-01), Fishman
patent: 5105710 (1992-04-01), Rothmel

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