Devices and transducers with cavity resonator to control 3-d characteristics/harmonic frequencies for all sound/sonic waves

摘要

Acoustic device suitable to create substantially the whole series of harmonic frequencies and for reproducing sounds of any nature comprising: at least two drivers suitable to create an alternating flow of the fluid and each one of the electro-dynamic drivers comprising: a central cap (271) suitable to create the alternating flow, a plurality of magnetic field generators including: a moving coil (243) supplied by electricity and connected to the central cap (271), the acoustic device also comprises a cavity resonator (303, 411) defining a cavity (301, 407, 413, 415) containing a fluid; in that the drivers are inserted in the cavity (301, 407, 413, 415) making up a single hermetically sealed body; each one of the drivers comprise a central opening (207) connected to the cavity (301, 407, 413, 415) in order to let the fluid flow from the central cap (271) of one of the two drivers to the central cap (271) of the other of the two drivers; one of the magnetic field generators is wound around the central opening (207) of each one of the drivers; and wherein the fluid in the cavity (301, 407, 413, 415) is at stabilized pressure.