Sub-harmonic tone generator for bowed musical instruments

Details Sub-harmonic tone generator for bowed musical instruments Sub-harmonic tone generator for bowed musical instruments

1987-09-02

1989-08-15

Grimley, Arthur T.

Music

Instruments

84 116, 84 123, G10H 312, G10H 106

Patent

active

048564010

ABSTRACT:
A device to produce sub-harmonic tone signals in response to a tone signal from a transducer having preferably maximum sensitivity in the plane of bowing of a bowed musical instrument by passing selected cycles of the transducer signal through signal gates which are controlled jointly by sub-harmonic control signals at sub-multiples of the fundamental frequency of the transducer signal and by a signal indicative of the detection of a fundamental frequency. Each sub-harmonic tone signal thus produced has a tone color which approximates that of the corresponding bowed musical instrument of the same frequency range and which is independent of the direction of bowing.

REFERENCES:
patent: Re26533 (1969-03-01), Cookerly et al.
patent: 3097253 (1963-07-01), Peterson
patent: 3535969 (1970-10-01), Bunger
patent: 3934201 (1976-01-01), Majefski
patent: 4442750 (1984-04-01), Bowley
patent: 4534258 (1985-08-01), Anderson
patent: 4730530 (1988-03-01), Bonanno

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