Electroacoustic musical instrument with controlled fade-out

Details Electroacoustic musical instrument with controlled fade-out Electroacoustic musical instrument with controlled fade-out

1983-02-07

1984-11-27

Witkowski, Stanley J.

Music

Instruments

84 113, 84 116, 84DIG10, G10H 326

Patent

active

044845081

ABSTRACT:
A musical instrument with a plurality of vibratile tone generators, whose oscillations are converted into alternating currents by electroacoustic transducers, is provided with a control circuit feeding back a regenerative vibratory signal of progressively diminishing amplitude to maintain the oscillations of a previously activated tone generator for a selected fade-out period. The duration of the fade-out period can be controlled by the player, e.g. with the aid of a pedal, by varying the time constant of a peak-storage network connected to the feedback loop. The feedback signal may be transmitted to the respective tone generator by a mechanical vibrator attached to the instrument body or by sound waves emitted from a loudspeaker. The player may also switch from the output of the peak-storage network to a constant control signal for sustained reverberation.

REFERENCES:
patent: 2001723 (1935-05-01), Hammond, Jr.
patent: 4236433 (1980-12-01), Holland

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