Artificial reverberation device

Claim 1

AN APPARATUS FOR PROVIDING REVERBERATION OF AN ELECTRICAL SIGNAL COMPRISING AT LEAST TOW COIL SPRINGS HAVING APPRECIABLY DIFFERENT EFFECTIVE SIGNAL TRANSMISSION LENGTHS, MEANS SUSPENDING SAID SPRINGS AT THEIR ENDS TO PERMIT VIBRATIONS COMPRISING SIGNALS IN SAID SPRINGS TO TRAVEL THE LENGTHS OF SAID SPRINGS AND BE REFLECTED FROM THE RESPECTIVE ENDS OF SAID SPRINGS, SAID SUSPENDING MEANS INCLUDING COMPLAINT SUPPORT MEANS AND DAMPING MEANS CONNECTED TO ONE END OF EACH SPRING FOR CONTROLLING THE RATE OF VIBRATION DECAY, ELECTROMECHANICAL DRIVER MEANS SUPPORTED AT A POSITION ADJACENT SAID ONE END OF EACH SPRING FOR CONTROLLING BOTH OF SAID SPRINGS TO VIBRATE BOTH OF SAID SPRINGS SIMULTANEOUSLY WITH A CERTAIN RELATIVE VIBRATIONAL RELATIONSHIP WHEN AN AUDIO FREQUENCY SIGNAL IS APPLIED TO SAID DRIVER MEANS, AND MECHANICO-ELECTRIC PICKUP MEANS SUPPORTED AT A POSITION ADJACENT SAID ONE END OF EACH SPRING FOR TRANSLATING VIBRATIONS TRANSMITTED OVER SAID SPRINGS INTO ELECTRICAL SIGNALS, SAID PICKUP MEANS BEING SUBSTANTIALLY INSENSITIVE TO SIMULTANEOUS VIBRATIONAL COMPONENTS IN SAID SPRINGS WHICH HAVE SAID CERTAIN RELATIVE RELATIONSHIP.