Hammering operation control unit of piano accompanied with autom

Details Hammering operation control unit of piano accompanied with autom Hammering operation control unit of piano accompanied with autom

1990-03-29

1990-11-20

Brown, Brian W.

Music

Instruments

Automatic

84115, 84DIG7, 84462, G10F 102, G10G 304

Patent

active

049709283

ABSTRACT:
In order to eliminate the disadvantages due to varieties of a string-striking speed (i.e., dynamic characteristic) of a hammer, a hammering operation control unit is applied to a piano accompanied with an automatic performance function which can reproduce a musical performance recording in advance. Based on a detected string-striking speed of the hammer which is driven by the reference drive value predetermined to each key, the hammering operation control unit computes a deviation from the target string-striking speed corresponding to the reference drive value as a compensation value. Then, the newest computed compensation value is stored in a memory device or medium such as a floppy disk by periodically renewing the stored compensation value. Based on the stored compensation value, the string-striking speed of the hammer is to be compensated.

REFERENCES:
patent: 1979633 (1934-11-01), Miessner
patent: 4913026 (1990-04-01), Kaneko et al.

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