Acoustic drum with shell wall embedded electronic trigger sensor

Details Acoustic drum with shell wall embedded electronic trigger sensor Acoustic drum with shell wall embedded electronic trigger sensor

1998-08-28

1999-11-02

Shoop, Jr., William M.

Music

Instruments

Electrical musical tone generation

84725, 84730, 84104, 84411R, 84DIG24, G10D 1302, G10H 300

Patent

active

059774738

ABSTRACT:
An acoustic drum capable of triggering an electronic sound source is provided by a combination of a drum body shell, conventional drum heads held at adjustable tension across open ends of the shell, and a sound-to-electrical transducer mounted within an open space of the interior or exterior shell wall surface. The sound-to-electrical transducer is connected to an audio jack assembly which in turn allows the drum to be connected to conventional downstream electronics. The sound energy attenuating characteristics of the mounting material and the surrounding shell wall 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. A sound energy transfer arm with elastomeric pad having limited contact with the striking head couples vibration to the embedded transducer in the shell wall for enhanced trigger sensitivity and tracking.

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: 4899633 (1990-02-01), Lombardi
patent: 4947725 (1990-08-01), Nomura
patent: 4984498 (1991-01-01), Fishman
patent: 5042356 (1991-08-01), Karch
patent: 5105710 (1992-04-01), Rothmel
patent: 5293000 (1994-03-01), Adinolfi
patent: 5811709 (1998-09-01), Adinolfi

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