System for electronically simulating radiation effects produced

Details System for electronically simulating radiation effects produced System for electronically simulating radiation effects produced

1979-12-26

1981-12-29

Konick, Bernard

84 124, G10H 102

Patent

active

043084281

ABSTRACT:
A device for electronically simulating vibrato and tremulant effects and the radiation effects produced by a rotary loudspeaker with the aid of two loudspeakers, in which a musical tone signal is applied to a variable delay device associated with one of the loudspeakers. The frequency modulated signal produced by the variable delay device is also subjected to amplitude modulation, controlled in synchronism with the variable delay device, and the resulting composite signal applied to the other loudspeaker. Additionally, the high frequency components of the frequency modulated signal from the variable delay device are summed, in and out of phase relationship, with the composite amplitude modulated signal to simulate the effect of a rotating high frequency horn radiator.

REFERENCES:
patent: 3719782 (1973-03-01), Barnum
patent: 3749837 (1973-07-01), Doughty
patent: 4008641 (1977-02-01), Takada et al.

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