Abstract: A stabilized headband may include a pivot mechanism. The pivot mechanism may be configured so that at least one pad is pivotable about at least one pivot axis and disposed between the at least one pad and one of first and second ends of the headband. The stabilized headband may further include a rotation mechanism. The rotation mechanism may be configured so that the at least one pad is rotatable about at least one rotation axis and disposed between the at least one pad and the one of the first and second ends of the headband.

Abstract: A piezoelectric sounding component includes a diaphragm that includes a metal plate and a piezoelectric body formed on the metal plate. A casing includes a bottom wall and side walls defining an open sound chamber. The casing also includes a supporting portion on which the diaphragm is supported to cover the open end of the chamber. A terminal is formed on the casing and serves to apply voltage to the diaphragm. An elastic adhesive fixes the diaphragm to the supporting portion and a conductive adhesive is formed on the elastic adhesive and electrically connects the terminal and the diaphragm. An elastic sealing material forms a frame-like sealing portion that seals a gap between outer peripheral edges of the diaphragm and an inner surfaces of the casing. The elastic sealing material also used to cover at least part of an exposed surface of the piezoelectric body to form a protective portion that protects the surface of the piezoelectric body. The protective portion contacts the sealing portion.

Abstract: A piezoelectric sounding component includes a diaphragm that includes a metal plate and a piezoelectric body formed on the metal plate. The diaphragm bends and vibrates according to application of voltage to the piezoelectric body. A casing that includes a bottom wall, side walls, and a supporting portion to support the diaphragm in inside edge portions of the side walls. The side walls extending from edges of the bottom wall in a thickness direction and includes a first wall, a second wall positioned to face the first wall, and a third wall positioned between the first wall. Two or more terminals that are formed on the first wall or the third wall serve to apply voltage to the diaphragm. Two or more elastic adhesives join the side walls and the diaphragm between the two or more terminals and the diaphragm. Two or more conductive adhesives are formed on the two or more elastic adhesives and join the two or more terminals and the diaphragm.

Abstract: A device includes: a first sidewall including a first opening extending through the first sidewall; a first sensor attached to an interior surface of the first sidewall, wherein the first sensor is aligned to at least partially cover the first opening; a second sidewall opposite the first sidewall; a third sidewall attaching the first sidewall to the second sidewall; and a first contact pad disposed on an exterior surface of the third sidewall, wherein the first contact pad is configured to provide at least one of a power connection or a signal connection for the first sensor.

Abstract: An earbud may include an acoustic driver. The acoustic driver may include a diaphragm and a magnetic circuit. A frame of the acoustic driver may be integrated with the earbud.

Abstract: Various examples are provided for digital sound reconstruction using piezoelectric array elements. In one example, a digital loudspeaker includes a fixed frame and an array of transducers disposed on the fixed frame. Individual transducers of the array of transducers can include a flexible membrane disposed on a piezoelectric actuation element positioned over a corresponding opening that extends through the fixed frame. In another example, a method includes forming a flexible membrane structure on a substrate and backetching the substrate opposite the flexible membrane structure. The flexible membrane structure can be formed by disposing a first electrode layer on a substrate, disposing a piezoelectric layer on the first electrode layer and disposing a second electrode layer on the piezoelectric layer. A flexible membrane layer (e.g., polyimide) can be disposed on the second electrode layer.

Abstract: According to an embodiment of the present disclosure, provided are a vibration output device and a portable electronic apparatus outputting vibration.

Abstract: A loudspeaker includes a yoke, an annular magnet, a voice coil, and an open type inductive coil. The annular magnet is combined to the yoke, and a magnetic gap is provided between the annular magnet and the yoke. The voice coil is disposed in the magnetic gap. The open type inductive coil is combined to the yoke or the annular magnet, and the open type inductive coil corresponds to the voice coil. An inductive gap is located between the open type inductive coil an the voice coil, where the open type inductive coil includes a coil unit and two signal transmission lines. The coil unit includes opposite open ends, first ends of the signal transmission lines are respectively connected to the open ends, and second ends of the signal transmission lines are exposed out of the yoke and the annular magnet, so as to transmit mutual inductance signals between the coil unit and the voice coil to outside.

Abstract: An earpiece for a hearing device, includes: an earpiece housing comprising an ear canal portion and an outer ear portion, the ear canal portion extending along an ear canal axis for positioning in an ear canal of a user, the ear canal portion having a first end; a first microphone for detecting ambient sound via a first input port in the earpiece housing; a second microphone; and a receiver for providing an audio output signal to the ear canal when the earpiece is inserted in an ear of the user; wherein the first microphone is arranged at a first distance from the first input port, wherein the first distance is at least 2 mm when measured parallel to a main plane having a main plane normal parallel to a main axis, the main axis forming a first main angle that is less than 30 degrees with the ear canal axis.

Abstract: The invention relates to the field of micro-electromechanical technology, and more particularly, to a microphone structure with an enhanced back cavity and an electronic device, comprising: a first layer plate, an groove is configured on the first layer plate, wherein an acoustic sensor is installed above the groove by means of a support, and the acoustic sensor is provided with a back cavity facing towards the support, and a through-hole for penetrating through the back cavity and the groove is provided on the support; a second layer plate, covering the first layer plate, wherein an acoustic through-hole is configured on the second layer plate; wherein, the first layer plate and second layer plate form a microphone acoustic cavity.

Abstract: In at least one embodiment, a dual asymmetric compression driver is provided. The dual asymmetric compression driver includes a first driver assembly and a second driver assembly. The first driver assembly is positioned about a central axis and includes a first annular diaphragm having a first planar section extending at a first clamping distance. The second driver assembly is positioned about the central axis and includes a second annular diaphragm having a second planar section extending at a second clamping distance. The first clamping distance is different from the second clamping distance causing the first asymmetric driver to provide a first audio output in a first frequency range and the second driver assembly to provide a second audio output in a second frequency range.

Abstract: A multi-device module, comprising: a first substrate, which houses a first MEMS transducer, designed to transduce a first environmental quantity into a first electrical signal, and an integrated circuit, coupled to the first MEMS transducer for receiving the first electrical signal; a second substrate, which houses a second MEMS transducer, designed to transduce a second environmental quantity into a second electrical signal; and a flexible printed circuit, mechanically connected to the first and second substrates and electrically coupled to the integrated circuit and to the second MEMS transducer so that the second electrical signal flows, in use, from the second MEMS transducer to the integrated circuit.

Abstract: An electro-acoustic transducer including a housing having an interior volume with first and second interior volume portions and a sound aperture that extends to the first interior volume, a diaphragm located between the first and second interior volumes, and an environmental sensor associated with the housing and having an inlet in fluid communication with the first interior volume.

Abstract: A personal audio system enabling a user to distinguish approximate locations of sound sources comprises at least one sound receiver. The sound receiver comprises a sound collecting structure for collecting sound. The sound collecting structure comprises a plurality of sound passages opening toward different directions and with different sizes to collect sound waves from the environment. The different sizes of the openings render a decline or an increase in specific frequency ranges of sound as a result of different resonances via the different openings. The user may therefore distinguish the direction of a sound source based on the slightly different pitches (frequencies) of the sound.

Abstract: A coaxial loudspeaker apparatus (10) comprising: a first unit, being arranged to propagate sound in a first frequency range; a second unit, being arranged to propagate sound in a second frequency range that is higher than the first frequency range, comprising a first waveguide (30); a second waveguide (60) arranged to extend substantially in prolongation of the first waveguide (30); and a third waveguide (100) arranged to extend substantially in prolongation of the second waveguide (60).

Abstract: A wearable audio component includes a first cable and an audio source in electrical communication with the first cable. A housing defines an interior and an exterior, the audio source being contained within the interior thereof. The exterior includes an ear engaging surface, an outer surface, and a peripheral surface extending between the front and outer surfaces. The peripheral surface includes a channel open along a length to surrounding portions of the peripheral surface and having a depth to extend partially between the front and outer surfaces. A portion of the channel is covered by a bridge member that defines an aperture between and open to adjacent portions of the channel. The cable is connected with the housing at a first location disposed within the channel remote from the bridge member and is captured in so as to extend through the aperture in a slidable engagement therewith.

Abstract: A loudspeaker system including a pair of elongated arrays of electrodynamic drivers, each array being composed of a plurality of drivers of the same type and size. The drivers are driven by electrical signals from an audio signal converter that receives an electrical audio signal representative of sound waves to be reproduced by the loudspeaker system and converts the electrical audio signal to a modified electrical audio signal by applying an inverse of the composite electromechanical bandpass transfer function and an inverse of the composite acoustical impedance high-pass transfer function to the electrical audio signal. The drivers may be circular drivers with a nominal size (diameter) of two to four inches.

Abstract: An air pulse generating element, disposed in a sound producing device, includes a membrane, disposed within a chamber; and a plurality of valves, disposed by the membrane within the chamber, configured to seal a plurality of openings of the chamber in response to a plurality of valve control signals; wherein the membrane and the plurality of valves are all fabricated at a first layer.

Abstract: A loudspeaker comprises a housing, a vibration diaphragm, a voice coil assembly, a centering support piece and a magnetic circuit system, an opening is provided at the center of the vibration diaphragm, and the voice coil assembly is fixed at the opening and is suspended in the housing; the magnetic circuit system comprises a magnetic conductive yoke fixedly connected with the housing, a magnet at one side of the magnetic conductive yoke close to the voice coil assembly, and a washer at one side of the magnet away from the magnetic conductive yoke; and a holder for supporting the centering support piece is provided on the washer, and the centering support piece is bonded and fixed to the inner wall of the voice coil assembly. By utilizing the present invention, the height of the loudspeaker can be effectively reduced, and the acoustic performance of the product can be increased.

Abstract: A sound producing device includes a diaphragm, an armature extending parallel to the diaphragm, a coil having a wire wound around the armature in multiple turns, multiple magnets facing the armature, a yoke supporting the multiple magnets, a transmitting body configured to transmit a vibration of the armature to the diaphragm, a driving-side frame on which the armature, the coil, and the yoke supporting the multiple magnets are mounted, and a vibration-side frame including an opening in which the diaphragm is vibratably supported. The driving-side frame and the vibration-side frame are placed one over the other.