Abstract: An acoustic matching structure is used to increase the power radiated from a transducing element with a higher impedance into a surrounding acoustic medium with a lower acoustic impedance. The acoustic matching structure consists of a thin, substantially planar cavity bounded by a two end walls and a side wall. The end walls of the cavity are formed by a blocking plate wall and a transducing element wall separated by a short distance (less than one quarter of the wavelength of acoustic waves in the surrounding medium at the operating frequency). The end walls and side wall bound a cavity with diameter approximately equal to half of the wavelength of acoustic waves in the surrounding medium. In operation, a transducing element generates acoustic oscillations in the fluid in the cavity.

Abstract: In at least one embodiment, a sound and vibration sensor is provided. The sound and vibration sensor includes a housing, a piezo-diaphragm, and a flexible support plate. The piezo-diaphragm is positioned in the housing to detect an input signal including audio or vibrations. The flexible support plate receives the piezo-diaphragm to enable the sensor to exhibit a frequency response with a plurality of resonant frequencies in response to detecting the audio or the vibrations on the input signal.

Abstract: A hybrid receiver includes a dynamic driver including a frame, magnetic circuit, voice coil vibrated by the magnetic circuit and a mutual electromagnetic force, and a diaphragm to which the voice coil is attached to vibrate, a balanced armature driver including a housing, a magnetic circuit, a coil, an armature magnetized by a magnetic field of the coil to interact with the magnetic circuit, a rod vertically connected to the armature, and a diaphragm vibrated by the rod, and a bracket coupled to an upper portion of the diaphragm of the dynamic driver and having a sound emission port configured to emit sound of the dynamic driver. The bracket has a balanced armature driver accommodation space on an upper surface thereof. The balanced armature driver is disposed such that the diaphragm is parallel to the upper surface of the bracket. The housing has a sound emission hole above the diaphragm.

Abstract: A system may obtain data related to hearing instruments, such as data indicating answers of a user to a questionnaire or historical usage data of the hearing instruments. For each respective feature of one or more features, the system may determine a feature duty cycle corresponding to an amount of time during a period in which the respective feature is anticipated to be active based on the data related to the hearing instruments. The system may further determine an energy cost for the respective feature at least based on the respective feature duty cycle for the respective feature and a power consumption rate of the respective feature. The system may calculate a battery life of one or more batteries in the hearing instruments at least based on the energy costs for each feature of the one or more features.

Abstract: The present invention discloses a miniature ear canal hearing aid, electronic elements other than a receiver being wrapped inside a housing, a front end of the housing being sealed and fixed at a rear end of the receiver, a sound outlet of the receiver being exposed to an outside of the housing, the receiver being wrapped with an eardrum head thereon, the eardrum head being fixed at the front end of the housing in a detachable manner, and the sound outlet of the receiver being located inside the eardrum head. The structure of the present invention can increase a degree of curvature of a portion going deep into the ear canal, reduce a volume of the hearing aid, and improve adaptability, comfort and concealment.

Abstract: An omnidirectional loudspeaker having an inverted dome diaphragm disposed operably connected to a motor assembly and a phasing plug mounted to the motor assembly. The phasing plug has a top portion facing a convex surface of the inverted dome diaphragm and a bottom portion extending downward from the top portion along the central axis with a plurality of concentric apertures extending therethrough. Each aperture has a predetermined radial width and is spaced a predetermined concentric distance from an adjacent aperture. The plurality of concentric apertures cooperates with a compression chamber between the convex surface of the inverted dome diaphragm and the top portion of the phasing plug. Each aperture has a predetermined radial width, is spaced a predetermined concentric distance from an adjacent aperture and extends through the phasing plug exiting at the bottom portion.

Abstract: A hearing aid device adapted for use within the ear canal and of partially exposed in the canal types. This aid allows an air gap to substantially surround the hearing aid shell and air passages which communicate with the inner ear minimizing occlusion sensations and providing the user with an enhanced natural hearing experience. An aspect of this device is the provision of air passages in the mounting insert which securely positions the hearing aid shell in the wearer's canal. These passages are designed to stay open after insertion of the aid in the ear canal. In use, unamplified sound from the outside passes around the hearing aid shell, through the air passages in the mounting insert blending with the amplified sound emanating from the receiver. The area of air passages in the mounting insert can be tailored by the technician adapting to the hearing loss characteristics of the user.

Abstract: A sounding device includes a bracket having a receiving space, a vibration system, and a magnetic circuit unit. The magnetic circuit unit drives the vibration system to vibrate. The magnetic circuit unit includes a first magnetic body, a second magnetic body, and a yoke. The yoke includes a bottom wall, a first sidewall, and a second sidewall. The first sidewall and the second sidewall is fixed to the bracket. The first sidewall and the bottom wall form a first groove accommodating the first magnetic body, and the second sidewall and the bottom wall from a second groove accommodating the second magnetic body. An opening of the first groove is oriented opposite to an opening of the second groove. The vibration system includes first and second vibration portions. The magnetic circuit unit is arranged between the first and second vibration portions. In this way, a thin sounding device can be realized.

Abstract: The present invention provides a multipole engine array system and a loudspeaker, the multipole engine array system comprising a plurality of engine assemblies distributed in an annular array, the plurality of engine assemblies being fixed inside the cylindrical loudspeaker by means of a mounting base provided in a housing of the cylindrical loudspeaker; each engine assembly comprises a magnetic conduction plate and a magnet provided in the magnetic conduction plate; a magnetic field is formed between the magnet and the magnetic conduction plate; and the plurality of engine assemblies are arranged coaxially and annularly along the periphery of the mounting base, so as to form a multipole magnetic field having a plurality of magnetic pole directions.

Abstract: The present invention relates to a stick-type vibrating driver and, more specifically, to a stick-type vibrating driver implemented so as to enable vibration to be transmitted, by using a planar movable coil plate and a stick-shaped magnet, to an object to be vibrated. The stick-type vibrating driver according to the present invention can comprise: an outer body formed in a stick shape; a magnetic circuit part formed inside the outer body, and having a pair of magnetic bodies spaced apart with the movable coil plate therebetween; a vibrating part formed inside the outer body, and vertically vibrating according to the driving of the magnetic circuit part in a state in which the upper and lower ends of the movable coil plate are fixed; and upper and lower metal suspensions respectively connected between the outer body and the vibrating part.

Abstract: In one embodiment, a charging connector for charging devices, such as oral health devices, is disclosed. The charging connector may include a cable configured to connect to a power source and a plug in electrical communication with the cable and configured to connect to a device. The plug includes a plug body, a first conductive contact in electrical communication with the cable, a second conductive contact in electrical communication with the cable, a first magnetic element aligned with the first conductive contact and having a first polarity, and a second magnetic element aligned with the second conductive contact and having a second polarity that is different from the first polarity.

Abstract: A low distortion flat diaphragm provided with a diaphragm. A periphery of the diaphragm is defined as a fixing region and a middle portion thereof is defined as a vibrating region. The diaphragm is provided with an electric transduction coil located in the vibrating region, and a coil terminal and coil locating and wiring located in the fixing region. The diaphragm is further provided with a mass balancing line that makes a mass center of the vibrating region be matched with a mechanical center. The diaphragm is further provided with two brim compliant balancing lines. The brim compliant balancing lines and fan-out lines are symmetrically arranged in an X shape relative to a center axis of the diaphragm. The utility model eliminates cutting oscillation and sound distortion generated by unbalanced distribution of mass of the diaphragm effectively in a locating and wiring way of improving the electric transduction coil.

Abstract: A micro-speaker includes a frame body, a diaphragm arranged on the frame body, a magnetic structure and a voice coil arranged in the frame body. An upper end of the voice coil is fixed to the diaphragm. The magnetic structure is arranged under the voice coil. A monolithic, one-piece voice-coil balancing system is fixed under the frame body. The monolithic, one-piece voice coil balancing system is composed of two symmetrically arranged dampers connected to an integrally formed support frame. The two dampers and the support frame are made of a flexible circuit board. Each of the two dampers comprises a first end, a second end and a cantilever connecting the first end and the second end. A ratio of a length L of the cantilever to a distribution distance D of the cantilever is between 2-15.

Abstract: A device with water drainage for a speaker using a three-dimensional canopy shaped retainer and hydrophobic mesh is provided. The device includes a three-dimensional (3D) retainer having a canopy shape with an outer side and an inner side, the outer side having a generally convex shape and the inner side having a generally concave shape, the 3D retainer comprising apertures therethrough. The device further includes a hydrophobic mesh located at least at the apertures at the outer side of the 3D retainer, the hydrophobic mesh being air-permeable.

Abstract: An acoustic device and method generates an acoustic signal by applying an excitation signal to a first coil disposed about an armature of an acoustic receiver. A second coil magnetically coupled to the first coil generates an electrical output signal in response to the excitation signal applied to the first coil, wherein the output signal of the second coil is indicative of a change in a state or operation of the receiver or acoustic device. In some embodiments, the first and second coils are wired independently of each other, and the acoustic device further includes an electrical circuit which determines the change in the acoustic performance based on a change in the electrical output signal of the second coil.

Abstract: The present disclosure provides a speaker, comprising a vibration system including a speaker diaphragm and a magnetic circuit system cooperating with the vibration system. The speaker diaphragm comprises a thermoplastic polyester elastomer membrane and has a vibration amplitude of 0.25-1 mm, and the speaker has F0 of 150-1500 Hz. The speaker has the characteristic of good listening effect.

Abstract: The present disclosure is directed to electroacoustical devices comprising patterned MXene compositions on biaxially oriented polymer substrates and methods of making and using the same.

Abstract: This application relates to the technical field of speakers and discloses a speaker assembly. The sound-raising assembly includes a first housing, the first housing forms a cavity. The sound assembly includes a cavity, a diaphragm and an armature member, a perimeter of the diaphragm is connected to an inner wall of the cavity, and a side of the diaphragm is provided with a voice coil, the voice coil for driving the vibration of the diaphragm. The armature member is set relative to the cavity and is located on the side of the diaphragm where the voice coil is set. The present application could improve the sound quality of the speaker.

Abstract: A method for processing audio signals includes extracting a fundamental frequency (F0) component from a first audio signal; processing the first audio signal with Dominant Melody Enhancement (DoME) based on a hearing profile and output a second audio signal; and providing the second audio signal to the user. The DoME enhances the F0 component. The enhancement weight of the DoME is corresponding to the hearing profile.

Abstract: Sound-producing acoustic receivers and hearing devices implementing such receivers are disclosed. The acoustic receiver includes a receiver housing, an output port, a receiver motor assembly, and a transducer. The receiver housing includes a diaphragm that separates the receiver housing into a back volume and a front volume. The output port is located on the receiver housing and acoustically coupled to the front volume of the receiver housing. The receiver motor assembly is disposed in the back volume and is mechanically coupled to the diaphragm. The transducer is fastened to the receiver housing.