Electronic musical instrument

Details Electronic musical instrument Electronic musical instrument

1983-10-19

1984-12-04

Witkowski, Stanley J.

Music

Instruments

84 123, 84 124, G10H 1043

Patent

active

044857179

ABSTRACT:
An electronic musical instrument which produces a musical sound by controlling harmonics coefficient and using computing means based on the discrete Fourier transfer. For a fundamental wave, a period function indicated by predetermined period data is generated and, for a harmonic wave, a period function of a period having a predetermined relation to the period of the fundamental wave is generated. By the period function thus obtained, a modulating waveshape memory is read out to obtain modulating data, which is multiplied by a harmonic coefficient.

REFERENCES:
patent: 3913442 (1975-10-01), Deutsch
patent: 4084472 (1978-04-01), Niimi
patent: 4114498 (1978-09-01), Chibana et al.
patent: 4135427 (1979-01-01), Deutsch
patent: 4178825 (1979-12-01), Deutsch
patent: 4205577 (1980-06-01), Deutsch
patent: 4282790 (1981-08-01), Wachi
patent: 4387622 (1983-06-01), Deutsch

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