Tone production method and apparatus for electronic music

Details Tone production method and apparatus for electronic music Tone production method and apparatus for electronic music

1996-01-05

1997-04-08

Shoop, Jr., William M.

Music

Instruments

Electrical musical tone generation

84622, 84DIG10, G10H 700, G10H 100

Patent

active

056190026

ABSTRACT:
An apparatus and method for electronically producing music includes an adder coupled to a sinusoid memory, wherein the sinusoid memory is a look-up table including various sinusoidal waves having differing output characteristics. A feedback path between the output of the sinusoid memory and an input of the adder includes a register coupled to a feedback modifier device. The feedback modifier device includes a second look-up table which substitutes a feedback component .beta. into the sinusoidal wave output from the sinusoid memory. The output of the feedback modifier device is an arbitrary function of the selected wave from said sinusoid memory and the selected value of the feedback component.

REFERENCES:
patent: 4249447 (1981-02-01), Tomisawa
patent: 4655115 (1987-04-01), Nishimoto
patent: 4991218 (1991-02-01), Kramer
patent: 5033352 (1991-07-01), Kellogg et al.
patent: 5191161 (1993-03-01), Oya

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