Electronic musical instrument

Details Electronic musical instrument Electronic musical instrument

1978-09-15

1980-12-16

Witkowski, Stanley J.

Music

Instruments

84 119, 84 127, 84DIG8, 84DIG9, G10H 112, G10H 118

Patent

active

042389852

ABSTRACT:
An electronic musical instrument of a type capable of producing a musical tone corresponding to the tone pitch of a depressed key by controlling oscillation frequency of a voltage-controlled type oscillator by a pitch voltage corresponding to the tone pitch, wherein musical tone elements such as tone pitch and tone color are controlled in accordance with a control voltage which is produced for each individual key but is different from the pitch voltage.
A temperature curve can be determined by controlling the tone pitch of the musical tone by this control voltage as well as by the pitch voltage. A desired temperament curve can be obtained by suitably adjusting the values of the control voltage for the respective keys. The tone color control is effected by varying the cut-off frequency of the voltage-controlled type filter in accordance with the aforementioned control voltage.

REFERENCES:
patent: 3767833 (1973-10-01), Noble et al.
patent: 3828110 (1974-08-01), Colin
patent: 3886834 (1975-06-01), Okamoto
patent: 3886836 (1975-06-01), Hiyoshi
patent: 3898905 (1975-08-01), Schreier
patent: 3906830 (1975-09-01), Mathias
patent: 3948139 (1976-04-01), Melcher et al.
patent: 4050343 (1977-09-01), Moog
patent: 4077294 (1978-03-01), Hiyoshi et al.
patent: 4080862 (1978-03-01), Hiyoshi et al.
patent: 4083283 (1978-04-01), Hiyoshi et al.
patent: 4119005 (1978-10-01), Kondo et al.
patent: 4133244 (1979-01-01), Hiyoshi et al.
patent: 4166405 (1979-09-01), Hiyoshi et al.

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