Keyboard touch response setting apparatus

Details Keyboard touch response setting apparatus Keyboard touch response setting apparatus

1992-12-02

1994-05-03

Witkowski, Stanley J.

Music

Instruments

Electrical musical tone generation

84615, 84626, 84633, 84DIG7, G10H 118, G10H 146

Patent

active

053089170

ABSTRACT:
This invention discloses a touch response setting apparatus with which a player can rewrite a touch response curve for converting key touch data into tone generation tone level data. The touch response curve is defined by a polygonal line having at least a low touch setting point and a high touch setting point, and is stored in a RAM which receives a key touch input as an address, and outputs tone level data. In a test mode, low-touch (piano) and high-touch (forte) key operations corresponding to the touch setting points are performed, and an average value of a plurality of key depression strengths upon these key operations is obtained. When a predetermined value is given as tone level data corresponding to a touch average value at each touch setting point, the inclination of each segment of the polygonal line is determined. Thus, points on the segments are interpolated, and generated touch response curve data is stored in the RAM.

REFERENCES:
patent: 5173567 (1992-12-01), Fujita
patent: 5241124 (1993-08-01), Adachi et al.

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