Electronic musical instrument

Details Electronic musical instrument Electronic musical instrument

1975-11-11

1976-11-23

Weldon, Ulysses

Music

Instruments

84 103, 84 119, 84 122, 84 123, G10F 100

Patent

active

039929701

ABSTRACT:
An electronic musical instrument capable of producing any desired combination of two tones of mutually different footage. According to the invention, such combination of tones can be produced from only two tone sources without providing tone sources of an equal number to a total number of footage to be coupled. In view of the fact that musical tone waveshape amplitudes of two coupled tones of different footage can be represented by a multiplication term of a sine wave content and a cosine wave content, these two waveshape contents are individually calculated and then combined to form amplitudes of a composite musical tone waveshape.

REFERENCES:
patent: 3809786 (1974-05-01), Deutsch
patent: 3809788 (1974-05-01), Deutsch
patent: 3809790 (1974-05-01), Deutsch
patent: 3809792 (1974-05-01), Deutsch
patent: 3910150 (1975-10-01), Deutsch et al.

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