Abstract: A waveguide housing for a speaker assembly. The speaker assembly includes first and second drivers coupled to the waveguide housing where the first driver generates a midrange sound signal and the second driver emits a high-frequency sound signal. The waveguide housing includes a first plurality of sound channels configured to receive the midrange sound signal from the first driver such that the midrange sound signal travels through the first plurality of sound channels and is emitted from the waveguide housing by a first plurality of openings in the waveguide housing. The waveguide housing also includes a second plurality of sound channels configured to receive the high-frequency sound signal from the second driver such that the high-frequency sound signal travels through the second plurality of sound channels and is emitted from the waveguide housing by a second plurality of openings in the waveguide housing.

Abstract: A loudspeaker arrangement for a seat within a motor vehicle utilizes one or more localized sound output ports for low frequency sound reproduction. A housing, such as an enclosure, substantially surrounds a loudspeaker. One or more audio transmission line channels acoustically interconnect the interior of the enclosure to one or more sound output ports. The enclosure is situated below, behind, or in some fixed location around or within a vehicle seat. The sound outputs ports are situated at or near a headrest such that the output ports are located substantially less than a wavelength of sound at the highest operating frequency from either ear of the seat's occupant. The acoustic response and resonances of a 1) rear enclosure, 2) a front vented enclosure, 3) a loudspeaker, and 4) an audio transmission path from the enclosure to one or more output ports are used to provide localized low frequency sound reproduction.

Abstract: An acoustic measuring device suitable for performing measurements on a surface in contact with a flow. This acoustic measuring device comprises an acoustic surface delimiting a cavity, which has an axis of revolution, which comprises a recess centered with respect to the axis of revolution, configured to house an acoustic sensor and which, in a longitudinal plane passing through the axis of revolution, follows a logarithmic profile which extends from a first edge separating the recess and the acoustic surface.

Abstract: According to an embodiment, a sound emitting apparatus includes a helical hollow tube and at least three sound wave sources. The helical hollow tube helically extends in a circumferential direction to form an annular shape as a whole. The first helical hollow tube includes a plurality of openings. The at least three sound wave sources are coupled to the first helical hollow tube and are configured to supply a sound wave to the first helical hollow tube.

Abstract: The present invention relates to a method and apparatus for providing and/or receiving audible sound. In particular, the invention relates to apparatus, such as a micro speaker, which includes an active region which comprises an adsorbent element in the form of a self-supporting monolith-like element with a porous reticulated structure. The adsorbent element includes adsorbent material which comprises microporous organic polymer (MOP) material. The apparatus of the present invention is suitable for use in an electronic device, for example a mobile or portable electronic device, to provide improved audible sound.

Abstract: A loudspeaker arrangement for a seat within a motor vehicle utilizes one or more localized sound output ports for low frequency sound reproduction. A housing, such as an enclosure, substantially surrounds a loudspeaker. One or more audio transmission line channels acoustically interconnect the interior of the enclosure to one or more sound output ports. The enclosure is situated below, behind, or in some fixed location around or within a vehicle seat. The sound outputs ports are situated at or near a headrest such that the output ports are located substantially less than a wavelength of sound at the highest operating frequency from either ear of the seat's occupant. The acoustic response and resonances of a 1) rear enclosure, 2) a front vented enclosure, 3) a loudspeaker, and 4) an audio transmission path from the enclosure to one or more output ports are used to provide localized low frequency sound reproduction.

Abstract: The present invention relates to a method and apparatus for providing and/or receiving audible sound. In particular, the invention relates to apparatus, such as a micro speaker, which includes an active region which comprises an adsorbent element in the form of a self-supporting monolith-like element with a porous reticulated structure. The adsorbent element includes adsorbent material which comprises microporous organic polymer (MOP) material. The apparatus of the present invention is suitable for use in an electronic device, for example a mobile or portable electronic device, to provide improved audible sound.

Abstract: A waveguide housing for a speaker assembly. The speaker assembly includes first and second drivers coupled to the waveguide housing where the first driver generates a midrange sound signal and the second driver emits a high-frequency sound signal. The waveguide housing includes a first plurality of sound channels configured to receive the midrange sound signal from the first driver such that the midrange sound signal travels through the first plurality of sound channels and is emitted from the waveguide housing by a first plurality of openings in the waveguide housing. The waveguide housing also includes a second plurality of sound channels configured to receive the high-frequency sound signal from the second driver such that the high-frequency sound signal travels through the second plurality of sound channels and is emitted from the waveguide housing by a second plurality of openings in the waveguide housing.

Abstract: The present invention provides for a woven mesh element for an electroacoustic driver enclosure, and to an electroacoustic driver enclosure including such an element, wherein the element includes a plurality of mesh layers, and wherein the plurality of layers includes a layer of Dutch weave mesh preferably including a layer of Dutch Twill weave mesh, and in particular wherein the element includes plural layers of cross woven wire mesh and a layer of Dutch weave wire mesh.

Abstract: A playback device comprises an electroacoustic transducer; an acoustic waveguide in fluid communication with the transducer; and a housing delimiting an opening of the waveguide, the opening extending around an axis passing through the transducer. The opening may have a radial distance from the axis that varies with an azimuthal angle about the axis. An acoustic path length within the waveguide, between the transducer and the opening, is substantially constant and independent of azimuthal angle about the axis.

Abstract: An audio loudspeaker system for reproducing frequencies between 16 Hz and 700 Hz, comprising a loudspeaker housing defining an inner resonance chamber and at least two loudspeaker drivers arranged in the housing and having front faces arranged facing each other in an opposed manner. The housing comprises vertical wall elements arranged with a distance approximately defining a width of the resonance chamber, where each wall element comprises first and second side surfaces and a circumferential edge surface. A first side surface of the wall elements constitutes and inner surface of the housing and partly defines an enclosure of the resonance chamber, and a second side surface of the wall elements constitutes exterior side surfaces of the audio loudspeaker system. The loudspeaker drivers are arranged within substantially hemispherical cups arranged on the second side surfaces of the wall elements and enclosing the loudspeaker drivers in a close manner.

Abstract: The present disclosure provides an acoustic absorption material having a composite zeolite molecular sieve and a speaker using the acoustic absorption material, where the composite zeolite molecular sieve includes a first zeolite molecular sieve having a first micropore diameter and a second zeolite molecular sieve having a second micropore diameter, and the first micropore diameter is greater than the second micropore diameter, and the first zeolite molecular sieve is used as an adsorbent, and the second zeolite molecular sieve is used as a low-frequency enhancement material. In the present disclosure, a zeolite molecular sieve having a larger diameter is added as an adsorbent to a zeolite molecular sieve, to effectively absorb various volatile organic compounds (VOCs) in an application environment, thereby avoiding performance degradation or failure of the zeolite molecular sieve used as a low-frequency enhancement material.

Abstract: An earplug extending along an earplug axis may include an outer portion and an inner portion. The outer portion may include a proximal portion extending from a second end region, a distal portion extending from a first end region, and a slant portion therebetween. The outer portion may define an interior space. The inner portion may extend between a first and second end region and may be coupled to the outer portion within the interior space. A distance between an end of the inner portion proximate the second end region of the inner portion and an end of the outer portion proximate the second end region of the outer portion may be greater than a length of the proximal portion of the outer portion measured along the earplug axis.

Abstract: An acoustic metamaterial passive impedance matching device for use in matching the acoustic impedance of a loudspeaker is disclosed. The device includes a baffle having an upper end and a lower end, plates stacked concentrically from the upper end to the lower end, slots positioned between the plates, a side channel extending annularly around a circumference of at least one of the plates, and a spoke interconnecting the plates. Each of the plates includes a central region including perforations. Each of the slots is positioned between two adjacent plates. The side channel defines a chamber including a height greater than the height of the plates and an interior volume enclosing a predetermined volume of air. The side channels and the perforated plates generate an acoustic impedance that matches the complex conjugate acoustic impedance of the loudspeaker to deliver maximum acoustic power. The side channels may include open ends, closed ends, or both for providing an inductive or reactive capacitance.

Abstract: A sound generator comprises a shell, a vibration system and a magnetic circuit system, wherein the shell sequentially accommodates and fixes the vibration system and the magnetic circuit system from top to bottom; the magnetic circuit system comprises a magnetic conductive yoke, and a central magnetic circuit portion and a side magnetic circuit portion that are mounted on an upper surface of the magnetic conductive yoke; a magnetic gap is formed between the central magnetic circuit portion and the side magnetic circuit portion; and at least one of the central magnetic circuit portion and the side magnetic circuit portion is provided with a permanent magnet; the magnetic circuit system is provided with a rear sound hole; a rear cavity in communication with the rear sound hole is provided directly below the magnetic circuit system.

Abstract: Aspects describe a dual-planar retaining piece for stabilizing and securing earpiece in a wearer's ear. The retaining piece is either fixed or removable from the earpiece. The retaining piece includes a first cantilevered portion shaped to flexibly fit under the antitragus of a wearer's ear when the earpiece is worn, a second cantilevered portion shaped to flexibly fit under the antihelix of the wearer's ear when the earpiece is worn, and at least one attachment feature that couples the retaining piece to a body of the earpiece, wherein the body is shaped to fit in the lower concha of the wearer's ear when the earpiece is worn. In aspects, the first and second cantilevered portions are integrally formed.

Abstract: Disclosed is a ring shaped wearable communication device (ring) for a user's finger. The ring includes: a sound sensor that detects ambient sound levels; a speaker that produces sound in human audible frequency range per at least one signal received, wherein intensity of the sound produced is based on the ambient sound level; an out port; and a hollow channel with an increasing cross-section that wraps around the finger, wherein: smaller cross-section end of the hollow channel is connected to the speaker and the other end of the hollow channel is connected to the out port to provide a horn-like structure; the out port and the hollow channel are configured to reduce the mismatch between the acoustic impedance of air immediately outside the out port and the acoustic impedance as seen by the speaker just outside the speaker; and the out port emits sound received from the speaker as directional sound in close vicinity of the user's hand.

Abstract: Disclosed is a loudspeaker module comprising: a housing; a loudspeaker unit accommodated in the housing and dividing an inner chamber of the loudspeaker module into a front chamber and a rear chamber; a leakage hole formed on the housing at a position corresponding to the rear chamber; and a damping member covering the leakage hole, and being fixed on an outer surface of the housing at an area around the leakage hole, wherein the damping member comprises a sound-permeable damping film and a supporting member bonded together by a first adhesive layer, wherein the supporting member has a first inner hole and is provided on an outer area of the damping film in an annular shape, wherein the first adhesive layer has a second inner hole and is provided on an outer area of the supporting member in an annular shape.

Abstract: A waveguide housing for a speaker assembly. The speaker assembly includes first and second drivers coupled to the waveguide housing where the first driver generates a midrange sound signal and the second driver emits a high-frequency sound signal. The waveguide housing includes a first plurality of sound channels configured to receive the midrange sound signal from the first driver such that the midrange sound signal travels through the first plurality of sound channels and is emitted from the waveguide housing by a first plurality of openings in the waveguide housing. The waveguide housing also includes a second plurality of sound channels configured to receive the high-frequency sound signal from the second driver such that the high-frequency sound signal travels through the second plurality of sound channels and is emitted from the waveguide housing by a second plurality of openings in the waveguide housing.

Abstract: Various implementations include wearable audio devices with counter-bore port features for maintaining a cover on the port. In certain cases, the wearable audio device includes a port that is integrated into the device frame and acoustically couples one or more acoustic cavities to a distinct volume. The device frame has a counter-bore feature proximate to the port for positioning a metal mesh.

Abstract: A head-worn sound reproduction device is provided in the form of left and right earphones, which can either be clipped to each ear or mounted on other headgear. The earphones deliver high fidelity audio to a user's eardrums from near-ear range, in a lightweight form factor that is fully “non-blocking” (allows coupling in and natural hearing of ambient sound). Each earphone has a woofer component that produces bass frequencies, and a tweeter component that produces treble frequencies. The woofer outputs the bass frequencies from a position close to the ear canal, while the tweeter outputs treble frequencies from a position that is either close to the ear canal or further away. In certain embodiments, the tweeter is significantly further from the ear canal than the woofer, leading to a more expansive perceived “sound stage”, but still with a “pure” listening experience.

Abstract: The present disclosure relates to a kernel-type earphone which is capable of easily implementing a pressure balance structure while hardly affecting acoustic characteristics of a speaker unit by using an existing general diaphragm and an existing general gasket.

Abstract: The present invention relates to a hearing device adapted to be positioned in an ear canal of a user, the hearing device comprising a receiver unit, a positioning member adapted to position and hold the hearing device in the ear canal of a user, and a vibration preventing arrangement adapted to prevent vibrations of a least part of the positioning member.

Abstract: A hearing instrument includes a housing, a receiver and at least one other component mounted in the housing, in particular a battery and/or an electronic frame. The hearing instrument also has a coupling unit for the vibration-reduced mounting of the receiver. The receiver is elastically coupled by the coupling unit to the at least one additional component.

Abstract: The present disclosure relates to a molecular sieve, preparation thereof and acoustic absorption material and speaker containing the same. The molecular sieve having an MFI-structure, comprising a framework and an off-framework cation, wherein the framework comprises SiO2 and a metal oxide MxOy with M comprising boron, gallium or aluminium; the off-framework cation is at least one of hydrogen ion, alkali metal ion and alkaline earth metal ion. The molecular herein can effectively prevent the failure of the molecular sieve and improve the performance stability of the speaker.

Abstract: An acoustic panel assembly includes: an acoustic panel; a magnetic circuit that generates a gap; and a voice coil disposed in the gap in order to move with the passage of electrical current. The voice coil is connected to the acoustic panel in order to move the acoustic panel in such a way to emit a sound. The magnetic circuit is disposed in correspondence of the voice coil in such a way to project in the front and in the back with respect to the acoustic panel.

Abstract: A sound outputting apparatus is provided. The sound outputting apparatus includes at least one loudspeaker, and a main body configured to house the at least one loudspeaker. Each of the at least one loudspeaker includes an acoustic transducer configured to generate a sound wave, and a sound guide part configured to directionally output the sound wave via a plurality of openings. A diameter of each of the plurality of openings is increased as a distance from the acoustic transducer increases.

Abstract: An audio assembly provides audio content to a user. The audio assembly comprises an elongated body, a negative vent assembly, and a positive vent assembly. The elongated body includes an audio waveguide. The negative vent assembly is coupled to the elongated body and includes at least one negative vent that vents negative acoustic pressure waves generated by a back surface of a transducer coupled to a first end of the audio waveguide. The positive vent assembly is part of the elongated body and is coupled to a second end of the audio waveguide. The positive vent assembly includes at least one positive vent that vents positive acoustic pressure waves generated by a front surface of the transducer.

Abstract: A sound outputting apparatus is provided. The sound outputting apparatus includes at least one loudspeaker, and a main body configured to house the at least one loudspeaker. Each of the at least one loudspeaker includes an acoustic transducer configured to generate a sound wave, and a sound guide part configured to directionally output the sound wave via a plurality of openings. A diameter of each of the plurality of openings is increased as a distance from the acoustic transducer increases.

Abstract: A display apparatus includes: a display configured to display an image; a housing configured to support the display; a loudspeaker provided between the display and the housing and configured to output sound; and a sound guide provided on the loudspeaker and configured to guide the sound output by the loudspeaker. The sound guide may include comprise: a directional emitter including: an internal space extending in a first output direction of the sound; and a plurality of holes arranged in the output direction on a first surface facing a second output direction different from the first output direction; and one pair of directional guides protruding from the first surface, the plurality of holes of the directional emitter being interposed between the one pair of directional guides, the one pair of directional guides approaching each other in the second output.

Abstract: The present invention refers to a loudspeaker. Soundwaves generated by a loudspeaker according to the prior art are emitted into a room or into the surrounding space in a predetermined geometric structure. It is a task of the present invention to provide a loudspeaker, which has an improved spatial acoustic performance. According to an embodiment of the invention, the loudspeaker comprises a housing, at least one driver arrangement and a mounting device including a movable mechanism for mounting the driver arrangement to the housing. The driver arrangement comprises at least one electroacoustic driver. With the help of the mounting device the driver arrangement is mounted to the housing in different predetermined positions, wherein the mounting device is adapted such, that the driver arrangement can be arranged in at least a first position and at least a second position with respect to the housing.

Abstract: An Acoustic meta material (AMM) device for passive amplification of sound is described. The AMM amplifier device employs a deep sub-wavelength resonator design with high refraction index, which uses resonant amplification of the bass sound. An array of sub wavelength, single frequency channels are used, each resonating and amplifying at a different frequency in the bass frequency range. This is accomplished by having many different channels, each with an opening extending in a same, common, or substantially common direction. Thus, sound emanating from a speaker in a first direction continues in this direction until reaching and entering the openings of the plurality of channels. The sound from the speaker is in all transmitted frequencies of, for example, a musical recording or the like. However, only a specific frequency and/or harmonics thereof are substantially propagated through each channel.

Abstract: A device for Doppler optical coherence tomography (Doppler OCT), preferably of the human middle ear, is proposed. The device has an endoscope unit for at least partial insertion into the auditory canal. A sound source, a sound receiver, and OCT optics are integrated in the endoscope unit.

Abstract: The present disclosures an ear-hanging type structure. The ear-hanging type structure comprises an ear supporting part, the ear supporting part comprises a protrusion part, a cavity part and a connection part for connecting the protrusion part with the cavity part, the protrusion part is provided with a hollow structure, and the protrusion part, the connection part and the cavity part are mutually communicated; and a partial periphery of the ear supporting part corresponds to the anti-helix of an ear and is arranged along an inner side of the anti-helix. Compared with the prior art, the present disclosure has the advantages that the partial periphery of the ear supporting part corresponds to the anti-helix of the ear and is arranged along the inner side of the anti-helix so as to improve fitness of the ear-hanging type structure and the ear, use comfortableness and wear stability without discomfortableness after long-time wearing.

Abstract: A speaker apparatus includes a sound guide and a pair of speakers mounted to the sound guide. The sound guide includes a first guide portion configured to guide a sound generated from any one of the pair of speakers in a first direction; and a second guide portion configured to guide a sound generated from the other speaker in a second direction that is plane-symmetric with respect to the first direction. Each of the first and second guide portions includes an opening forming portion formed in an end portion of the corresponding portion and including an opening configured to output a sound generated by the pair of speakers, and a slit forming portion including a slit configured to output a sound, together with the opening, wherein the slit is extended from one side of the opening.

Abstract: An Acoustic meta material (AMM) device for passive amplification of sound is described. The AMM amplifier device employs a deep sub-wavelength resonator design with high refraction index, which uses resonant amplification of the bass sound. An array of sub wavelength, single frequency channels are used, each resonating and amplifying at a different frequency in the bass frequency range. This is accomplished by having many different channels, each with an opening extending in a same, common, or substantially common direction. Thus, sound emanating from a speaker in a first direction continues in this direction until reaching and entering the openings of the plurality of channels. The sound from the speaker is in all transmitted frequencies of, for example, a musical recording or the like. However, only a specific frequency and/or harmonics thereof are substantially propagated through each channel.

Abstract: A steering tool includes an internal tube disposed inside an external tube. The internal and external tubes are arranged for longitudinal axial movement relative to one another. A distal portion of the internal tube is fixedly joined to a distal portion of the external tube. Either or both of the tubes are formed with patterns of cuts made along adjacent longitudinal stations along a length of the cut tube. The cutting pattern at a first longitudinal station is shifted with respect to a cutting pattern at a second longitudinal station and a cutting pattern at the second longitudinal station is shifted with respect to a cutting pattern at a third longitudinal station but at a different shift defined between the first and second longitudinal stations, so that a shift from one longitudinal station of cuts to the next adjacent longitudinal station of cuts is not repeated.

Abstract: A soundbar speaker for transmitting reflected sound waves off an upper surface down to a listening environment, comprising: a cabinet containing a plurality of audio drivers, direct-firing drivers within the cabinet oriented to transmit sound along a horizontal axis substantially perpendicular to a front surface of the cabinet, and a pair of upward-firing slotted drivers placed proximate to ends of an top surface of the cabinet and oriented at an inclination angle relative to the horizontal axis. The slotted drivers are configured to create an overlapping reflected sound projection for high frequency sound when reflected down to a listening position located at a distance in front of the speaker pair. Such a speaker projects reflected sound that provides wider horizontal or side-to-side dispersion to better cover the listening area.

Abstract: A touch sensitive device comprising a touch surface, a force exciter coupled to the touch surface to excite vibration in the surface in response to a signal sent to the exciter, with the touch surface and exciter together forming a coupled system and a signal generator to generate the signal, with the signal generator generating a carrier wave signal at frequencies within the frequency bandwidth of the coupled system and modulating the carrier wave signal with a complex modulation where the modulated carrier wave signal has a time response comparable to that of a low frequency signal which produces a desired haptic sensation whereby a user touching the touch surface excited by the exciter in response to the modulated carrier wave signal experiences the desired haptic sensation which is perceived at a frequency below the frequency bandwidth of the coupled system.

Abstract: A speaker apparatus includes a sound guide and a pair of speakers mounted to the sound guide. The sound guide includes a first guide portion configured to guide a sound generated from any one of the pair of speakers in a first direction; and a second guide portion configured to guide a sound generated from the other speaker in a second direction that is plane-symmetric with respect to the first direction. Each of the first and second guide portions includes an opening forming portion formed in an end portion of the corresponding portion and including an opening configured to output a sound generated by the pair of speakers, and a slit forming portion including a slit configured to output a sound, together with the opening, wherein the slit is extended from one side of the opening.

Abstract: A loudspeaker module, comprising a housing, the housing accommodates a loudspeaker unit, and the loudspeaker unit divides the overall module inner cavity into a front acoustic cavity and a rear acoustic cavity, the rear acoustic cavity is provided with sound absorbing particles therein, the rear acoustic cavity is further provided with therein a net-like isolating component for isolating the sound absorbing particles and the loudspeaker unit, the isolating component divides the whole rear acoustic cavity into a filled region and an non-filled region, the sound absorbing particles are located within the filled region, the sound absorbing particles are made of a non-foaming material, and the external diameter of the sound absorbing particles is ?0.01 mm and less than the height of the filled region.

Abstract: A linear motor is disclosed. The linear motor includes a housing; a vibrating assembly arranged in the housing, the vibrating assembly including a weight and a plurality of coils connecting with the weight; a magnet assembly connecting with the housing, the magnet assembly including a main magnet and a side magnet; and an elastic connecting piece supporting the vibrating assembly in the housing elastically. The coils are arranged around the main magnet; and the side magnet is arranged adjacent to peripheries of the coils.

Abstract: An electronic device includes a body and a first support coupled to one portion of the body, where the first support extends from the body along a line in a first direction relative to a central axis of the body. The device further includes a second support coupled another portion of the body, where the second support extends from the body along a line in a second direction relative to a central axis of the body, and an ear loop connecting the first support to the second support. The shape of the ear loop permits coupling with a user's ear, such that the shape of the ear loop changes according to changes in a degree of an angle between the line in the first direction and the line in the second direction.

Abstract: The disclosure relates to an inlet member for a microphone system in a hearing instrument, such as a hearing aid, wherein the inlet member has a main body portion having a first portion and a second portion, the second portion being provided with a first recess for accommodating a microphone comprising a snout for conducting sound energy into the interior of the microphone, wherein the first recess is provided with a sound channel formed for engagement with the snout of the microphone, where the sound channel at the end hereof facing away from the microphone is acoustically coupled to a third recess in the first portion, the third recess being defined by wall portions that provide a seal to corresponding inner surface portions of a hearing instrument, in which the inlet member is mounted.

Abstract: A loudspeaker array includes an encapsulated baffle and a multitude of sound transducers. The encapsulated baffle includes a multitude of recesses arranged next to each other on a first main surface. The sound transducers of the multitude of sound transducers are arranged in the associated recesses such that an encapsulated rear volume is formed by each recess for the respective sound transducer.

Abstract: This measurement system quantitatively presents the effect of wearing an acoustic device that transmits sound to a user by contacting a vibrating body to a human auricle. In a measurement system including an ear model, which is provided with an artificial auricle and an artificial external ear canal, and an air-conducted sound gauge that measures air-conducted sound in the artificial external ear canal, while an acoustic device is contacted to the ear model of the measurement system, the acoustic device including a vibrating body and transmitting sound to a user by contacting the vibrating body to a human auricle, the measurement system measures, with the air-conducted sound gauge, air-conducted sound generated by the acoustic device and presents the result of measurement together with a characteristic corresponding to when the user wears the acoustic device.

Abstract: A motion inducing system for playing sounds over a gramophone is provided. An electrical signal such as that from a digital music player is converted to lateral movement of a surface using a linear motion transducer. The lateral movement moves the stylus of a gramophone, and the music from the digital music source is played through the horn of the gramophone.

Abstract: A hearing device, e.g. a hearing aid, having a protection system is disclosed. The device includes an input unit for receiving an acoustic signal from a user's surroundings and providing a corresponding audio signal, and an output unit receiving said audio signal and providing an audible signal to the user, where the hearing device further includes a barrier element for protecting elements of the hearing device. Furthermore, the disclosure relates to a hearing device inlet system.

Abstract: An enclosure for an electronic device is enclosed. The enclosure includes rib structures configured to improve structural support to prevent damage and to dissipate vibration throughout the enclosure. The rib structure can receive a speaker module and a cap member. The rib structure and the speaker module can combine to form a three-dimensional volume allowing the speaker module in which the speaker module may project sound, thereby enhancing acoustic performance. Also, the cap member may be adhesively attached to the rib structure to provide additional structural support against vibration and abuse caused by load forces associated with a drop event.

Abstract: Offset cartridge microphones are provided that include multiple unidirectional microphone cartridges mounted in an offset geometry. Various desired polar patterns and/or desired steering angles can be formed by processing the audio signals from the multiple cartridges, including a toroidal polar pattern. The offset geometry of the cartridges may include mounting the cartridges so that they are immediately adjacent to one another and so that their center axes are offset from one another. The microphones may have a more consistent on-axis frequency response and may more uniformly form desired polar patterns and/or desired steering angles by reducing the interference and reflections within and between the cartridges.