Abstract: The present disclosure provides a speaker diaphragm and a speaker. The diaphragm includes a thermoplastic polyester elastomer film layer (11), a thermoplastic polyester elastomer being a copolymer composed of a polyester hard segment A and a polyether or aliphatic polyester soft segment B, wherein a mass percentage of the polyester hard segment A is 10-95%. The speaker diaphragm features high structural strength, is not easy to be damaged, and has good toughness and resilience and a good sound generation effect.

Abstract: A speaker is disclosed, which comprises a vibration system and a magnetic circuit system cooperating with the vibration system. The vibration system includes a speaker diaphragm, the speaker diaphragm comprises two surface layers compounded together and at least one intermediate layer positioned between the two surface layers, at least one of the surface layers is a thermoplastic polyester elastomer film layer, the at least one intermediate layer is an adhesive layer, the speaker diaphragm has Young's modulus of 5-700 MPa and an amplitude of 0.25 mm-1 mm, and the speaker has F0 of 150-1500 Hz. The speaker has a good sounding effect.

Abstract: Implementations of the subject technology provide vented audio transducers such as vented speakers. A speaker assembly may define a first volume under a dome of the speaker and a second volume under a surround of the speaker. The first volume and the second volume may be separated by a speaker structure such as a voice coil. By venting the first volume to the second volume, the disclosed vented speakers can provide a flatter response at high frequencies and lower distortion relative to conventional speakers, by equalizing the pressure under the diaphragm during operation.

Abstract: Sound-producing acoustic receivers are disclosed. The acoustic receiver includes a housing, a first diaphragm, and a motor. The housing has an internal volume separated by the first diaphragm into a first front volume and a first back volume such that the first front volume has a first sound outlet. The first diaphragm includes a first paddle movable about a first hinge. The motor is disposed in the housing and includes an armature mechanically coupled to the first paddle. The first hinge is located between opposite ends of the first paddle such that actuation of the armature pivots both ends of the first paddle about the hinge.

Abstract: An acoustic filter (100) comprises a filter housing (10) with an acoustic channel (11) and acoustic valve (20) in the channel. The acoustic valve (20) can be moved to along a trajectory (S) between positions (P1, P2). An actuator (30) is configured to actuate the acoustic valve (20) along the trajectory (S). The actuator (30) comprises one or more mechanical elements (31,32). The mechanical elements can move the acoustic valve (20) along at least an initial part of the trajectory. The actuator (30) comprises one or more magnetic elements (41, 42) with a magnetic field (M1,M2) configured to exert a magnetic force (Fm) on the acoustic valve (20). This may help to move the acoustic valve (20) to the second position (P2) along a final part of the trajectory and keep the acoustic valve (20) at the second position (P2). Accordingly the stroke of the valve can be enhanced.

Abstract: A display apparatus includes a display module that includes a display panel and is configured to display an image. A rear cover is on a rear surface of the display module. A first vibration generating module is in a first rear region of the rear cover, and a second vibration generating module in a second rear region of the rear cover. The rear cover includes a first hole that overlaps the first vibration generating module, and a second hole that overlaps the second vibration generating module.

Abstract: A hearing device includes: one or more microphones configured to generate one or more microphone output signals based on a received audio signal; a signal processor coupled to the one or more microphones; a wireless communication unit; a magnetic induction control chip; and a magnetic induction coil; wherein the magnetic induction control chip is coupled to a first end of a first conductive element and to a first end of a second conductive element; and wherein the wireless communication unit is coupled to the first end of the first conductive element and to the first end of the second conductive element, and wherein a second end of the first conductive element and a second end of the second conductive element are coupled via the magnetic induction coil.

Abstract: A speaker diaphragm includes a plurality of highly rigid layers and a porous layer. Each of the plurality of highly rigid layers includes a first resin matrix, and wood fibers and highly rigid fibers dispersed in the first resin matrix. The porous layer includes a second resin matrix comprising independent pores, and fibers comprising wood fibers and highly rigid fibers dispersed in the second resin matrix. Both outermost layers are the highly rigid layers. A percentage content of the wood fibers in the highly rigid layers is 10% by mass or more and 65% by mass or less. A percentage content of the highly rigid fibers in the highly rigid layers is 5% by mass or more and 40% by mass or less. A percentage content of total fibers in the porous layer is 15% by mass or more and 40% by mass or less.

Abstract: A non-dispensing manufacturing process includes forming a paper cone; engaging the paper cone with a voice coil to form a vibration assembly; fixing a yoke, a magnet set, and a washer to form a magnetic circuit assembly; engaging a basket with the magnetic circuit assembly; and engaging the basket with the vibration assembly to form a speaker, where no glue is used in the manufacturing process. A speaker includes a paper cone; a voice coil engaged with the paper cone to form a vibration assembly, where a junction between a bobbin of the voice coil and the paper cone has a first welding layer; a magnetic circuit assembly including a yoke, a magnet set, and a washer that are integrally fixed; and a basket engaged with the magnetic circuit assembly and the vibration assembly.

Abstract: A glass sheet composite includes a first glass sheet, a second sheet disposed opposite the first glass sheet, and a liquid layer formed by sealing up a liquid between the first glass sheet and the second sheet, in which the glass sheet composite has a plurality of vibration areas that are independent of each other in a plan view. The glass sheet composite is a diaphragm including at least one vibrator disposed on one side or both sides of the glass sheet composite. The glass sheet composite enables independent vibration at each of the vibration areas, and enables not only stereophonic or multiphonic reproduction but also local reproduction to be performed along with images. Since the diaphragm includes a vibrator, this diaphragm is excellent in sound reproduction.

Abstract: An outer case for covering a handheld electronic device or handheld electronic device case includes a base, a lid, and a collar. The lid is pivotably attached to the base. The collar is attached to the base and is moveable away from the lid such that the lid rotates away from the base during movement of the collar away from the lid.

Abstract: A diaphragm has a configuration including a diaphragm main body, a cone part on an outer periphery of the diaphragm main body, a ring member joined to the cone part, and an edge having an inner periphery joined to an outer periphery of the ring member or an outer periphery of the cone part. This configuration improves the rigidity without changing the shape of the diaphragm main body, that is, without giving rise to a mass increase in the diaphragm main body, and keeps the sound pressure from decreasing in a high frequency range.

Abstract: A hearing aid microphone structure and a hearing aid are provided. The hearing aid microphone structure includes a microphone, a sound-guiding foam and a dust-proof net. The microphone is arranged on a front surface of a first end plate in a housing, wherein the first end plate is a part of a flexible circuit board, and the first end plate has a sound transmission hole. The sound-guiding foam arranged on a rear surface of the first end plate, wherein the sound-guiding foam has a sound-guiding hole, and the sound-guiding hole is communicated with the sound transmission hole. The dust-proof net arranged on the sound-guiding foam, wherein the dust-proof net has a peripheral portion and a net portion, and the net portion is blocked in front of the sound-guiding hole.

Abstract: The present disclosure relates to a balanced armature receiver (100) including a housing having a diaphragm comprising a movable paddle (116) disposed in the housing and separating the housing into a back volume (112) and a front volume (110) defined partly by space between a ceiling of the housing and the diaphragm, wherein the paddle is oriented non-parallel to the ceiling. A sound port (142) in the housing acoustically couples the front volume to an exterior of the housing, wherein the sound port is located on an end wall between the diaphragm and the ceiling. A motor disposed in the back volume includes a coil magnetically coupled to an armature having an end portion movably disposed between magnets retained by a yoke and coupled to the paddle.

Abstract: A hearing aid (10, 11) has a memory (123) for storing personal settings for alleviating a hearing loss for the hearing aid user. A user account is created from an Internet enabled computer device (17) on a remote server (25), and the user account includes the personal settings for alleviating a hearing loss for the hearing aid user and personal information. A wireless connection is set up between the hearing aid (10, 11) and the personal communication device (13), and the personal communication device (13) is identified as a gateway to the Internet for said hearing aid. The user grants access rights to a third party to modify data in a sub-set of the user account stored on the server (25).

Abstract: An inertial exciter for use with an acoustic radiator, the inertial exciter comprising: a magnet assembly including a magnet unit configured to provide a magnetic field in an air gap, wherein the air gap extends around a movement axis of the inertial exciter; a coil assembly including: an attachment portion configured to provide an attachment between the coil assembly and the acoustic radiator; a voice coil; a voice coil former which extends from the attachment portion into the air gap.

Abstract: Presented herein are devices/apparatuses having indicator lights (visual indicators), such as light emitting diodes (LEDs), positioned underneath/below the outer surface of a housing of the device. However, the indicator lights positioned below the outer surface of the housing, sometimes referred to herein as “sub-surface” or “sub-housing” indicator lights, are optically coupled to the outer surface of the housing via one or more optical connectors (e.g., light guides, light pipes, light diffusers, etc.). As such, the light emitted by the sub-surface indicator lights is still visible at the outer surface of the device housing.

Abstract: A system, method, hearing aid and software for providing a network connection for a computer device to at least one hearing aid having a gateway to the Internet. The system includes a user account server providing a user account database, each user account includes a unique identity for an associated hearing aid; a control server providing a hearing aid connection register including the unique identity of hearing aids associated with current connection information; and a network connection handling element for detecting the presence of a wireless connection between the hearing a and gateway, and for uploading current connection information to the control server. On receiving connection information, the control server updates the hearing aid connection register, and provides the current connection information to a requesting computer device. The computer device can establish a direct connection to the hearing aid based on current connection information requested from the control server.

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 sound generator includes a frame, a magnetic circuit system and a vibration system accommodated in the frame. The vibration system includes a suspension. The suspension includes a first part and a second part attached to the first part. The first part includes a first middle portion, a first edge portion, and a first positioning portion. The second part includes a second middle portion, a second edge portion, and a second positioning portion. The second positioning portion is stacked on the first positioning portion, and is assembled with the first positioning portion by adhesive. The first edge portion is convex toward the frame, and the second edge portion is convex away from the frame, by which a sealed cavity is formed between the first and second edge portions. By virtue of such a configuration, the strength of the vibration system is improved.