Integral and a differential waveshape generator for an electroni

Details Integral and a differential waveshape generator for an electroni Integral and a differential waveshape generator for an electroni

1984-04-06

1985-10-29

Witkowski, Stanley J.

Music

Instruments

84 119, 84 122, G10H 106, G10H 700

Patent

active

045494592

ABSTRACT:
A keyboard operated electronic musical instrument is disclosed which has a number of tone generators that are assigned to actuated keyswitches. Musical tones are produced by computing a master data set which defines the data points for a period of the musical waveshape. The computation uses a preselected set of harmonic coefficients. Provision is made for altering the harmonic coefficients to produce waveshapes which are derivatives or integrals of the basic waveshape. The order of differentiation or integration can be varied to produce time variant tone effects.

REFERENCES:
patent: 4079650 (1978-03-01), Deutsch et al.
patent: 4135422 (1979-01-01), Chibana
patent: 4238984 (1980-12-01), Watanabe
patent: 4254681 (1981-03-01), Kugisawa
patent: 4269101 (1981-05-01), Deutsch et al.
patent: 4344343 (1982-08-01), Deforeit
patent: 4387622 (1983-06-01), Deutsch
patent: 4398442 (1983-08-01), Deutsch

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