Method and apparatus for achieving timbre modulation in an elect

Details Method and apparatus for achieving timbre modulation in an elect Method and apparatus for achieving timbre modulation in an elect

1977-08-29

1980-02-26

Rubinson, Gene Z.

Music

Instruments

84 124, 84 126, G10H 104

Patent

active

041899709

ABSTRACT:
In a digital musical instrument, timbre modulation is effected through the use of a digital magnitude comparator and associated digital logic. Selected note frequency signals and selected scale factors are compared in the digital magnitude comparator. Selected comparator outputs are applied to the associated digital logic in conjunction with a sample gating signal. This modulation results in a segmentation of the audio waveshape in accordance with the frequency signals selected for use in the comparator. Hence, choice of lower pitched frequency signals will result in a wider segmentation period, while choice of higher pitched frequency signals will narrow the segmentation period. Timbre modulation may be employed during note attack and/or decay.

REFERENCES:
patent: 3610799 (1971-10-01), Watson
patent: 3610805 (1971-10-01), Watson et al.
patent: 3639913 (1972-02-01), Watson
patent: 3740450 (1973-06-01), Deutsch
patent: 3908504 (1975-09-01), Deutsch
patent: 3972259 (1976-08-01), Deutsch
patent: 4033219 (1977-07-01), Deutsch
patent: 4134321 (1979-01-01), Woron

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