Abstract: The invention concerns an acoustic device with electro-acoustic transducers and with a cavity resonator that provide extreme tri-dimensional to concentrate/diffuse infrasonic, sonic and ultrasonic waves. It also concerns many structural designs in which some models of cavity resonators and all their transducers are appropriately arranged on the basis of the different uses; so doing it is possible to achieve numerous interacting operational set-ups (basic configuration systems) that can be used in the medical sector, in industry or in the home, in entertainment and leisure. Differently to previously known techniques the acoustic device according to this patent is also a highly sophisticated cybernetic apparatus for the reproduction of various tri-dimensional sound fields that are identical to the original ones, or for generating completely new ones. This acoustic device can be compared to a Helmholtz resonator that transmits sound-waves/harmonic frequencies rather than receiving them.

Abstract: A resonator device comprises a plurality of transducers fitted and spatially aligned on the four prongs of two tuning forks, with vibrating masses, placed side-by-side with the four prongs arranged at 90° angles one from the other in a clockwise or anticlockwise direction, the distance between the individual prongs, their dimensions, shapes and masses, producing mechanical vibrations and resonances at predetermined frequencies.

Abstract: The invention concerns an acoustic device (and its electric/electronic circuits) with electro-acoustic transducers and with a cavity resonator that provide extreme tri-dimensional characteristics (in order to control the main harmonic frequencies but also the fundamental harmonic in the harmonic series) to concentrate/diffuse infrasonic, sonic and ultrasonic waves. It also concerns many structural designs in which some models of cavity resonators and all their transducers are appropriately arranged and spatially aligned on the basis of the different uses; so doing it is possible to achieve numerous interacting operational set-ups (basic configuration systems) that can be used in the medical sector, in industry or in the home, in entertainment and leisure.

Abstract: This resonator device also represents the most sophisticated development to date of the Helmholtz resonator and consists of a system having several transducers appropriately fitted and spatially aligned on corresponding support structures that can be likened to the arms or prongs of a tuning fork. It can be described as being like two tuning forks, with vibrating masses, placed side-by-side with the four prongs facing four different ways, arranged at 90° angles one from the other in a clockwise or anticlockwise direction with the distance between the individual prongs, their dimensions, shapes and masses, also suitable for producing mechanical vibrations and resonances at predetermined frequencies.