Electronic musical instrument

Details Electronic musical instrument Electronic musical instrument

1978-05-01

1981-11-24

Witkowski, Stanley J.

Music

Instruments

84 11, 84 111, 84 119, 84 127, G10H 1057, G01H 114

Patent

active

043017045

ABSTRACT:
An electronic musical instrument generates musical tone signals by digitally executing the calculations of equations representing frequency modulation. The instrument comprises a keyboard information generating circuit for generating key information concerning depressed key numbers and key touch information concerning key operation, a plurality of system parameter generating circuits for providing parameter information in response to the outputs of a tone color selecting switch section, a plurality of system musical tone signal forming sections each for producing musical tone signals through the digital calculation of the FM equation in accordance with the abovementioned informations, and a musical tone generating section for producing musical tones by combining the musical tone signals provided by the musical tone signal forming sections, the musical tone signal forming sections calculating the FM equation by using different parameters provided by the parameter generating circuits. The produced musical tone signals contain partials of inharmonic relations and are rich in partials, to realize naturalness.

REFERENCES:
patent: 4018121 (1977-04-01), Chowning
patent: 4135422 (1979-01-01), Chibana

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