Electronic musical instrument for tone formation by selectable t

Details Electronic musical instrument for tone formation by selectable t Electronic musical instrument for tone formation by selectable t

1979-11-14

1981-11-03

Witkowski, S. J.

Music

Instruments

84 119, 84 122, G10H 106, G10H 500

Patent

active

042979331

ABSTRACT:
An electronic musical instrument is of a type in which musical tone signal waves are formed by calculation under wave forming algorithm in an algorithm circuit. The algorithm circuit has a plurality of arithmetic circuits connected by gates. Control signals are applied to the gates and the arithmetic circuits to constitute a certain algorithm performing circuit connection depending upon a selected king of tone. These control signals are sequentially produced at predetermined timing from a pitch data generation circuit, an envelope generation circuit, and an algorithm control data generation circuit.
For calculation of tone waves of different tone colors, different types of algorithm performing circuits are established, thereby realizing wide variety of tone properties.

REFERENCES:
patent: 4128032 (1978-12-01), Wada et al.
patent: 4189970 (1980-02-01), Woron

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