Electronic keyboard instrument with an unique tone channel assig

Details Electronic keyboard instrument with an unique tone channel assig Electronic keyboard instrument with an unique tone channel assig

1992-06-25

1993-06-08

Witkowski, Stanley J.

Music

Instruments

Electrical musical tone generation

84627, 84DIG2, G10H 1057, G10H 122, G10H 500

Patent

active

052181545

ABSTRACT:
An electronic keyboard instrument having simultaneous tone channels for generating a plurality of kinds of tones such as percussion tones upon a keyboard operation is disclosed. A memory (17b) stores inherent tone duration values of different kinds of tones to be generated in correspondence with a plurality of keys of a keyboard. A register group (32) for holding tone duration values in correspondence with a plurality of tone channels is arranged. The values held in the register group are decreased by a subtracter (33) along with an elapse of time. Upon a key-ON event, a detector (34) detects the minimum value of the tone duration values held in the register group. A channel corresponding to the register which holds the minimum value is assigned as a new tone channel, and the content of the register is updated with the fixed tone duration value stored in the memory. The updated register renews assignment of a tone channel in a tone source.

REFERENCES:
patent: 5095800 (1992-03-01), Matsuda
patent: 5159144 (1992-10-01), Fujisawa et al.

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