Digital frequency follower for electronic musical instruments

Details Digital frequency follower for electronic musical instruments Digital frequency follower for electronic musical instruments

1980-03-28

1982-02-02

Smith, Jr., David

Music

Instruments

84454, 84DIG18, 84 103, 324 78D, 364724, G01H 100

Patent

active

043133614

ABSTRACT:
In an electronic musical instrument apparatus is provided for generating musical sounds having a fundamental frequency which tracks the fundamental frequency of a time varying external control signal. A matched filter is used to generate frequency control signals which are determined by a closeness criterion between the external control signal and an internally generated test signal. Provision is made for offsetting the generated musical sounds for a preselected musical interval from the fundamental frequency of the external control signal.

REFERENCES:
patent: 3803390 (1974-04-01), Schaepman
patent: 4021653 (1977-05-01), Sharp et al.
patent: 4106102 (1978-08-01), Desblacite
patent: 4280387 (1981-07-01), Moog

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