Abstract: An acoustic device (1), comprises: a container (2); a passive resonator, including a suspension (3) connected to the container (2) and a radiator (4) connected to the suspension (3), where the suspension (3) is configured to allow the radiator (4) to vibrate relative to the container (2), a structure (5) having at least a first connecting point (51), where it is connected to the radiator (4), and a second connecting point (52), where it is connected to the container (2), the structure (5) being movable alternately between a first position and a second position, responsive to a vibration of the radiator (4); one or more masses (61, 62), spaced from the radiator (4) and associated with the vibrating structure (5).

Abstract: A sound diffuser includes a housing and a transducer inside the housing. The transducer includes: a coil including a plurality of turns, each lying on a respective plane (?) transverse to a longitudinal axis; a ferromagnetic circuit, including a core provided with a central portion around which the coil is wound and an outer lateral portion located at the side of the coil and at least partly surrounding the coil, the outer lateral portion being separated from the core by an air gap extending longitudinally; and a permanent magnet inside the air gap that is caused to move parallel to the longitudinal axis when the coil is electrically energized. The sound diffuser includes a radiator coupled to the magnet so that longitudinal movement of the magnet parallel to the axis corresponds to longitudinal oscillation of the radiator along the axis.

Abstract: A modular speaker (100) includes a main module (200) defining a speaker (20) and including a cabinet (21) extending along a longitudinal axis (X) between a first and a second end (21a, 21b), a sound transducer (22), provided at the first end (21a) of the cabinet (21) and a connection circuit (23), provided at the second end (21b) of the cabinet (21). The modular speaker (100) also includes a rear module (300) selectable from a plurality of rear modules (300) and connectable reversibly to the second end (21b) of the cabinet (21) and a front module (400), defining an acoustic accessory selectable from a plurality of front modules (400) and connectable reversibly to the first end (21a) of the cabinet (21).

Abstract: A speaker (20) includes a cabinet (21) extending along a longitudinal axis (X) between a first and a second end (21a, 21b). The cabinet (21) includes a side wall surrounding an internal volume and provided with an opening to place the internal volume in communication with an outside environment. The speaker (20) also includes a sound transducer (22) and a connection circuit (23) configured to receive a signal and to transmit the signal to the sound transducer (22). The speaker (20) also includes a first and a second passive resonator (24, 25) each including a vibrating panel (24a, 25a). The vibrating panels (24a, 25a) are positioned in the internal volume, with respective first faces facing each other and respective second faces opposite the first faces. The internal volume includes a first, closed air volume (V1) delimited by an inside surface of the cabinet (21) and by the second faces of the vibrating panels (24a, 25a).

Abstract: A sound reproduction system (10) comprises a supporting structure (2) that includes a distribution circuit (23); a loudspeaker box (1) that is removably connected to the supporting structure (2) and includes a cabinet (11) and a sound transducer (12) associated with the cabinet (11); a connection circuit (13), which is connected electrically to the distribution circuit (23) of the supporting structure (2) and is configured to receive a signal from the distribution circuit (23) and to transmit it to the sound transducer (12), the connection circuit (13) of the loudspeaker box (1) being connectable to the distribution circuit (23) of the supporting structure (2) at a plurality of angular positions, rotated relative to each other about the longitudinal axis (A).

Abstract: An acoustic device (1), comprises: a container (2); a passive resonator, including a suspension (3) connected to the container (2) and a radiator (4) connected to the suspension (3), where the suspension (3) is configured to allow the radiator (4) to vibrate relative to the container (2), a structure (5) having at least a first connecting point (51), where it is connected to the radiator (4), and a second connecting point (52), where it is connected to the container (2), the structure (5) being movable alternately between a first position and a second position, responsive to a vibration of the radiator (4); one or more masses (61, 62), spaced from the radiator (4) and associated with the vibrating structure (5).

Abstract: A modular, acoustic amplification apparatus (100) comprises: a first module (1), including a first casing (11) and an acoustic amplifier (12) positioned inside the first casing (11), wherein the first casing (11) has the shape of a parallelepiped having a first base and a first height (H1), wherein the first base has a first long side (L1) and a first short side (C1); a second module (2) including a second casing (21) and a power supply or an accumulator positioned inside the second casing (21), wherein the second casing (21) has the shape of a parallelepiped having a second base and a second height (H2), wherein the second base has a second long side (L2) and a second short side (C2).

Abstract: An acoustic enhancement device (1) for producing a reverberation in a room (100) comprises: a microphone (2) configured to capture an analogue input signal (S1) representing input sounds present in the room (100); a control unit (3), connected to the microphone (2) to receive the analogue input signal (S1), configured to generate a digital signal (SD1) and to process the digital signal (SD1) in real time to generate a digital output signal (SD2); a diffuser (4) connected to the control unit (3) and configured to emit second sounds (41) in the room (100) based on the digital output signal (SD2), wherein the control unit (3) is configured to process the digital signal (SD1) in such a way that the second sounds (41) produce a predetermined reverberation effect in the room (100).

Abstract: A control system (1) controls the vibration of a platform (2), the platform is formed by a fixed lower support (2a), an upper support (2b) and a plurality of intermediate bodies (2c). The control system (1) includes at least one vibration generator (3) inside the platform (2) between intermediate bodies (2c) and comprising a stator body (4) and at least one vibrating body (5), made of material that is magnetic and concentric with respect to the stator body (4) and in a position that is radially external around the stator body (4), configured to vibrate the upper support (2b) with respect to the lower support (2a). The control system (1) also includes an electric circuit comprising a coil wound around the stator body (4) and designed to receive an audio and/or video signal to generate a magnetic field by the coil and designed to vibrate the at least one vibrating body (5) of the at least one vibration generator (3) as a function of the audio and/or video signal.

Abstract: A control system (1) controls the vibration of a platform (2), the platform is formed by a fixed lower support (2a), an upper support (2b) and a plurality of intermediate bodies (2c). The control system (1) includes at least one vibration generator (3) inside the platform (2) between intermediate bodies (2c) and comprising a stator body (4) and at least one vibrating body (5), made of material that is magnetic and concentric with respect to the stator body (4) and in a position that is radially external around the stator body (4), configured to vibrate the upper support (2b) with respect to the lower support (2a). The control system (1) also includes an electric circuit comprising a coil wound around the stator body (4) and designed to receive an audio and/or video signal to generate a magnetic field by the coil and designed to vibrate the at least one vibrating body (5) of the at least one vibration generator (3) as a function of the audio and/or video signal.

Abstract: Described is a system (1) for transmitting electrical power comprising a sinusoidal alternating current generator (2) which can be connected to a power supply source and operating at a non-resonant fixed frequency, a transmission circuit (3), of the non-resonant type, connected with the current generator (2) using a closed path and configured to generate a magnetic field and at least one receiver circuit (4), of the resonant type, which can be connected to a user (U) and which can be positioned in a space close to the transmission circuit to be immersed in the magnetic field generated by the transmission circuit (3) in such a way as to generate an induced current for powering the user (U). The receiver circuit (4) is designed to maintain a tuning between the fixed frequency of the current generator (2) and a resonance frequency of the circuit receiver (4).

Abstract: The invention relates to an electromechanical conversion system comprising: a fixed supporting structure, a movable element with respect to the fixed structure; at least one excitation coil; and at least one permanent magnet for generating an excitation magnetic field. The permanent magnet is integral with the movable element and the coil is integral with the fixed supporting structure. Moreover, a ferromagnetic circuit is provided fixed with respect to the structure and cooperating with the permanent magnet.

Abstract: Described is a unit for amplifying and processing audio signals for driving an electro-acoustic transducer (D), comprising: an input for audio signals; a processor for audio signals (107); an output for a signal for driving said electro-acoustic transducer; and an input for at least one operating quantity of the electro-acoustic transducer. The audio-signal processor is programmed for setting a series of parameters defining a transducer to be emulated, the parameters of which define a model of the transducer to be emulated. The input audio signal is processed on the basis of said at least one operating quantity of the electro-acoustic transducer to obtain a behavior of the electro-acoustic transducer that emulates the transducer defined by said series of parameters set.

Abstract: The invention relates to an electromechanical conversion system comprising: a fixed supporting structure, a movable element with respect to the fixed structure; at least one excitation coil; and at least one permanent magnet for generating an excitation magnetic field. The permanent magnet is integral with the movable element and the coil is integral with the fixed supporting structure. Moreover, a ferromagnetic circuit is provided fixed with respect to the structure and cooperating with the permanent magnet.

Abstract: Described is a unit for amplifying and processing audio signals for driving an electro-acoustic transducer (D), comprising: an input for audio signals; a processor for audio signals (107); an output for a signal for driving said electro-acoustic transducer; and an input for at least one operating quantity of the electro-acoustic transducer. The audio-signal processor is programmed for setting a series of parameters defining a transducer to be emulated, the parameters of which define a model of the transducer to be emulated. The input audio signal is processed on the basis of said at least one operating quantity of the electro-acoustic transducer to obtain a behavior of the electro-acoustic transducer that emulates the transducer defined by said series of parameters set.

Abstract: The filter for eliminating a carrier signal from a modulating signal generated by a circuit supplying a load (Z) comprises a filtering circuit (L, C; L′, C′) and a cancellation network (Lx, Cx, V2; Lx, Cx, Lx′, Cx′) which, when the load is connected to said filter, subtracts from the load a current equal to the residual carrier signal passing through said filtering circuit (L, C; L′, C′).