FIELD: physics.
SUBSTANCE: strike reader is faced to the hammer and has a laser beam emitter and a photocell, and a retroreflective coating is applied on the hammer pedal head to reflect the laser beam in the direction of the photocell at the strike moment. In the cavity of the body, a strike recognizing module is placed according to the parameters of the electrical signal from the photocell associated with the processing unit comprising an electrical signal generator of the sound frequency, which is connected to the output connector to connect the cable for outputting these signals for further processing and enhancing.
EFFECT: reliable strike recording is achieved by the musician on a large drum with the help of the foot pedal, ensuring the capture of weak strikes and delays.
4 cl, 3 dwg
