An embodiment relates to a high-quality electromagnetic speaker having improved accuracy of an air gap, wherein coils stacked on an upper part and a lower part of a vibration module are reliably and accurately set by respective fixing members, whereby the coils are disposed so that air gaps are formed mutually symmetrically at an equal distance in an upper part and a lower part with respect to a vibration plate. Accordingly, the present invention can be very usefully used in the electromagnetic speaker field that aims to exclude the distortion caused by asymmetry of air gaps and the non-uniformity of other acoustic conversion characteristics.

An audio converter system is provided. The system comprises an audio input configured to receive a source audio, an audio output configured to couple to a hybrid speaker comprising at least two nondirectional speakers and a directional speaker, and a processor configured to generate an output audio for the hybrid speaker based on the source audio by: identifying a specific sound in the source audio, isolating the specific sound from the source audio, generating a directional speaker output for the directional speaker of the hybrid speaker based on the specific sound, and generating at least two channels of nondirectional speaker output for the at least two nondirectional speakers of the hybrid speaker.

An audio converter system is provided. The system comprises an audio input configured to receive a source audio, an audio output configured to couple to a hybrid speaker comprising at least two nondirectional speakers and a directional speaker, and a processor configured to generate an output audio for the hybrid speaker based on the source audio by: identifying a specific sound in the source audio, isolating the specific sound from the source audio, generating a directional speaker output for the directional speaker of the hybrid speaker based on the specific sound, and generating at least two channels of nondirectional speaker output for the at least two nondirectional speakers of the hybrid speaker.

An arrangement for generating vibration according to an electrical input signal includes a first permanent magnet arrangement including a first permanent magnet, a frame including magnetic material, a second permanent magnet configured to be arranged between the first permanent magnet and the frame and to be coupled with the frame, one or more portion of the frame extending at least in one direction over an edge area of the second permanent magnet. The second permanent magnet is further configured to face, at a distance, the first permanent magnet such that a magnetic interaction between the first permanent magnet and the second permanent magnet causes a first force to a surface of an apparatus, wherein the frame is configured to be magnetized by the second permanent magnet in order to cause magnetic interaction between the one or more portion of the frame and the first permanent magnet arrangement in order to cause a second force to the surface having an opposite direction compared with the first force.

The present invention relates to a hybrid speaker, having a high-frequency tweeter and a low-frequency woofer formed on the same axis, for improving sound quality by separately emitting a high-frequency sound generated by the high-frequency tweeter and a low-frequency sound generated by the low-frequency woofer. A device according to the present invention comprises: a woofer part for generating a low-frequency sound; a tweeter part for generating a high-frequency sound; a substrate for supplying an electrical signal to coils of the woofer part and the tweeter part; a lower frame for accommodating constituent components on the same axis; and an upper frame coupled to the lower frame to form a speaker housing, and separately having a low-frequency sound emission port for emitting the low-frequency sound of the woofer part and a high-frequency sound emission port for emitting the high-frequency sound of the tweeter part. Since the hybrid speaker, according to the present invention, has a hybrid structure in which the high-frequency tweeter and the low-frequency woofer formed on the same axis are coupled, and the high-frequency tweeter and the low-frequency woofer have respective sound emission ports, performance can be maximized, and since a frame of the high-frequency tweeter can be used instead of a low-frequency woofer cover, a process can be simplified, and thus productivity can be increased.

Various embodiments of a speaker and a method of forming such speaker are disclosed. The speaker includes a frame having a first major surface, a second major surface, and an opening disposed between the first and second major surfaces; a cone disposed adjacent the first major surface of the frame; and an adhesive layer disposed on at least a portion of the second major surface of the frame. The adhesive layer occludes the opening of the frame.

An apparatus includes a surface arranged to be mechanically displaced, a first magnet coupled with the surface, at least one supporting member for supporting the surface, a base comprising a second magnet, wherein the second magnet is arranged, at least partially, to face the first magnet, a coil coupled with the second magnet, and a signal port electrically coupled with the coil. An electrical signal is configured to travel between the signal port and the coil, and the electrical signal in the coil is proportional to mechanic displacement of the surface when a force equilibrium state of the surface is broken either by the electrical signal in the coil or the mechanic displacement of the surface from a position of the force equilibrium state.

An apparatus includes a surface arranged to be mechanically displaced, a first magnet coupled with the surface, at least one supporting member for supporting the surface, a base comprising a second magnet, wherein the second magnet is arranged, at least partially, to face the first magnet, a coil coupled with the second magnet, and a signal port electrically coupled with the coil. An electrical signal is configured to travel between the signal port and the coil, and the electrical signal in the coil is proportional to mechanic displacement of the surface when a force equilibrium state of the surface is broken either by the electrical signal in the coil or the mechanic displacement of the surface from a position of the force equilibrium state.

A planar magnetic loudspeaker may employ an airflow system having a magnet array separated from a diaphragm. The magnet array can have a plurality of airflow apertures that are arranged in a pattern and each continuously extending through a thickness of the magnet array to increase the signal-to-noise ratio of the planar magnetic loudspeaker.

A planar magnetic loudspeaker may employ an airflow system having a magnet array separated from a diaphragm. The magnet array can have a plurality of airflow apertures that are arranged in a pattern and each continuously extending through a thickness of the magnet array to increase the signal-to-noise ratio of the planar magnetic loudspeaker.