Patent ID: 7256342
Filing Date: 2007-08-14
Classification: G10D,G10H

Abstract:
1. A sound pickup device for picking up sound from a physically separate percussion instrument, the percussion instrument having a drumhead with a surface area, the sound pickup device comprising: a shell; a vibrator arranged inside of the shell adapted to resonate in response to low frequency sound from the physically separate percussion instrument, the vibrator having a surface area related to the surface area of the physically separate percussion instrument drumhead so as to pick up low frequency sound; an electroacoustic transducer arranged inside the shell, which is connected with the vibrator, the electrostatic transducer producing an electric signal representing at least the low frequency sound from the separate percussion instrument; a first diaphragm made of a mesh material, stretched over an opening of the shell facing the vibrator, the sound from the physically separate percussion instrument passing through said first diaphragm and reaching the surface area of said vibrator; and a second diaphragm stretched over another opening of the shell, wherein the sound pickup device is placed facing said first diaphragm to the drumhead of the physically separate percussion instrument.