Generation of mutation pitches in an electronic musical instrume

Details Generation of mutation pitches in an electronic musical instrume Generation of mutation pitches in an electronic musical instrume

1984-01-09

1985-08-06

Witkowski, Stanley J.

Music

Instruments

84 123, 84 124, G10H 507

Patent

active

045328480

ABSTRACT:
A musical waveshape generator is disclosed in which musical tones at mutation pitches corresponding to an actuated keyswitch are generated by selected attenuation of overtones of a square wave signal. A harmonic suppression means is described which is a combination of a low pass filter, a signal subtractor, and a rectangular waveshape generator whose state changes are controlled by a signal level comparator.

REFERENCES:
patent: 3809790 (1974-05-01), Deutsch
patent: 4398442 (1983-08-01), Deutsch
patent: 4408517 (1983-10-01), Ellen
patent: 4446769 (1984-05-01), Deutsch
patent: 4450746 (1984-05-01), Deutsch
patent: 4489637 (1984-12-01), Deutsch

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