Abstract: Disclosed is a sounding device, including a frame, a vibration system, and a magnetic circuit system. The vibration system includes a diaphragm, a framework, a voice coil, and an elastic conductor. The elastic conductor includes an elastic conductor body, a connection arm, and a pad portion. The connection arm includes a first connection portion, a first bending portion, a second connection portion, a second bending portion, and a third connection portion. A covering film is attached to inner and outer surfaces of the connection arm, and the covering film is moved from inside and/or outside surfaces of the first bending portion and the second bending portion. Removal of the covering film reduces the stress on inner and outer surfaces of bent areas, stabilizes bending angles, reduces springback, and makes pad positions precise.

Abstract: A loudspeaker assembly includes an enclosure having an open front side and a wall having an interior surface and an exterior surface with a wall thickness defined therebetween. The wall is integrally molded with a screw boss supported by a plurality of molded ribs that extend inwardly from the interior surface. The loudspeaker assembly also includes an audio transducer positioned within the enclosure and having an output side facing the open front side of the enclosure to emit sound therefrom; and a mount for securing the transducer to the enclosure via a screw threaded into the screw boss. At a meeting point with the interior surface, each of the plurality of molded ribs has a rib thickness measured perpendicular to the wall thickness, the rib thickness being less than 50 percent of the wall thickness to avoid sink marks in the injection molded part.

Abstract: Provided is a vibration system, a sounding device and an electronic device. The vibration system includes a voice membrane, a voice coil configured to drive the voice membrane to vibrate, and a holder having a pad. The voice membrane includes a dome and a first diaphragm arranged around the dome. The dome and the first diaphragm are fixed to the holder. The voice coil is connected to the pad through a lead wire. The dome includes a first end close to the pad and a second end away from the pad and opposite to the first end. The second end has a positioning portion. The holder has a sink configured to receive the positioning portion. The dome is positioned with the holder through engagement of the sink with the positioning portion. Good symmetry of assembly is provided between the holder and the dome in the related art.

Abstract: An acoustic transducer for generating electrical signals in response to acoustic signals, comprises a first diaphragm having a first corrugation formed therein. A second diaphragm has a second corrugation formed therein, and is spaced apart from the first diaphragm such that a cavity having a pressure lower than atmospheric pressure is formed therebetween. A back plate is disposed between the first diaphragm and the second diaphragm. One or more posts extend from at least one of the first diaphragm or the second diaphragm towards the other through the back plate. The one or more posts prevent each of the first diaphragm and the second diaphragm from contacting the back plate due to movement of the first diaphragm and/or the second diaphragm towards the back plate. Each of the first corrugation and the second corrugation protrude outwardly from the first diaphragm and the second diaphragm, respectively, away from the back plate.

Abstract: A planar magnetic driver including a radiating surface having a trace-free central region is described. The driver has a magnet defining an acoustic opening on a central axis. A diaphragm of the planar magnetic driver is held by mounts having a mounting profile around the central axis, and the diaphragm includes a radiating surface facing the acoustic opening. An innermost conductive trace on the diaphragm extends around a central region of the radiating surface within a magnetic flux of the magnet such that no conductive traces are on the central region. A radial distance between the innermost conductive trace and the mounting profile is less than another radial distance between the innermost conductive trace and the central axis. Accordingly, an excursion range of the diaphragm along the central axis is greater than a gap distance between the conductive trace and the magnet. Other aspects are also described and claimed.

Abstract: The present disclosure provides a magnetic system within a case for an electronic accessory. The case may include a housing portion and a lid coupled to the housing portion. Within the housing portion may be a housing magnet. The housing magnet may be oriented such that the magnetic field of the housing magnet is oriented transverse to a longitudinal axis of the case. The housing magnet may have a size and strength to magnetically couple the electronic accessory within a cavity of the housing. A hinge magnet may be located along an axis of rotation of the lid with respect to the housing. The hinge magnet and housing magnet may magnetically interact to form a bistable magnetic hinge. Thus, the one housing magnet may be large enough and have a strong enough magnetic field to perform various functions.

Abstract: A hearing aid assembly includes a receiver speaker enclosed within a receiver housing. The receiver housing defines a circuitous receiver acoustic channel, wherein the receiver channel defines an open side along at least a portion of the receiver channel. The receiver channel also defines a pass-through passage extending from a first side of the receiver housing to a second side of the receiver housing, wherein the pass-through passage is partially defined by the wall defining a receiver opening. The hearing aid assembly also includes an earbud configured to fit over at least a portion of the receiver housing and partially cover the open side of the receiver channel.

Abstract: An ear tip includes a body configured to be mounted onto an earbud. The body includes a first end, a second end opposite the first end, and an inner wall extending between the first and second ends. The inner wall defines and surrounds a hollow passage that is configured to conduct sound waves. The body also includes an outer wall that is connected to the inner wall at the first end and extends away from the inner wall toward the second end. The inner wall has an oblong cross-sectional shape that is configured to accommodate a corresponding nozzle on the earbud. The inner wall includes a ring that is formed of a rigid material and engages and conforms to the oblong shape of the nozzle, which inhibits improper mounting and rotation of the ear tip relative to the nozzle.

Abstract: An embodiment relates to a speaker and a speaker module. The speaker comprises a vibration system and a magnetic circuit system; the vibration system comprises a diaphragm and a voice coil coupled to the diaphragm; a space between a front side of the diaphragm and a front sound cavity cover forms a front sound cavity, and a space between a back side of the diaphragm and a rear sound cavity cover forms a rear sound cavity; wherein the speaker further comprises a plurality of injection molding inserts disposed along a vibration direction of the diaphragm, and the injection molding insert comprises a first end and a second end; the first end is joined with a surface of the front sound cavity cover close to the diaphragm, and the second end is joined with a surface of the rear sound cavity cover close to the diaphragm.

Abstract: An example apparatus includes a speaker housing with a recessed portion having a spring-loaded lip and a set of leads to provide power to the speaker when connected to a lead, and a lead interface plate external to the speaker housing with a set of leads to match the leads in the speaker housing, and when press-fitted into the recessed portion, provides a locked position with one side of the lead interface plate secured in front of the spring-loaded lip.

Abstract: Provided is an earphone having a pressure equilibrium structure capable of preventing a decrease in acoustic characteristics or sound pressure, while having a structure capable of achieving equilibrium within an ear canal. The earphone includes a receiver including a frame, a magnetic circuit, a voice coil, and a diaphragm, a front housing surrounding a front and a side surface of the receiver and including a sound tube, a rear housing attached to a rear of the receiver and coupled to the front housing, and a duct located between the diaphragm and the sound tube. An acoustic path through which sound is emitted is formed from the receiver to an end of the sound tube. The front housing or the rear housing includes a leakage hole. An inner end of the duct is connected to the acoustic path. An outer end of the duct is connected to the leakage hole.

Abstract: An earbud cover is implemented that secures to an earbud and protects at least the earbud's exterior surface from external damage. The earbud cover includes an upper body portion that conforms to the shape of the earbud's bulky body, a mid-section that conforms to the shape of the earbud's thinner body, and a bottom portion underneath a bottom surface of the earbud. While the upper body portion, mid-section, and bottom portion have been used to describe the earbud, other characterizations of the earbud's design are also possible. The earbud includes a cutout/opening corresponding to the earbud's I/O interface, such as its speaker or microphone. While a single cutout/opening is shown in the pictures, multiple openings may be utilized depending on the specific earbud. The bottom portion of the earbud also includes a hole that may be used to carry around the covers more easily, such as on a keychain.

Abstract: An ear-mountable listening device includes a plurality of electroacoustic transducers, a manifold, and an output port. The plurality of electroacoustic transducers emit audio in response to an audio signal. The plurality of electroacoustic transducers includes a first transducer and a second transducer. The manifold is coupled to the plurality of electroacoustic transducers. The manifold is shaped to position the first transducer and the second transducer to face one another and form a front cavity disposed between the first transducer and the second transducer. The output port is coupled to the manifold to direct the audio from the front cavity into an ear when the plurality of electroacoustic transducers emits the audio.

Abstract: The invention relates to a method for processing an acoustic input signal, preferably a speech signal, said method comprising the following steps: a) receiving a digital representation (Sin) of an acoustic input signal, b) calculating at least one statistical parameter (P) of the digital representation (Sin) of the acoustic input signal, c) calculating a compression ratio function (CRf) based—on a prescribed constant compression ratio (CRpr), said prescribed constant compression ratio (CRpr) uniformly mapping acoustic input signals of a selected magnitude to acoustic output signals of a selected magnitude, and—on at least one statistical parameter (P) calculated in step b), and d) applying the non-uniform compression ratio function (CRf) according to step c) on the digital representation (Sin) of the acoustic input signal delivering a digital representation (Sout) of an enhanced acoustic output signal.

Abstract: The present disclosure relates to a speaker and a speaker module, and the speaker comprises: a housing and a vibration system housed within the housing, wherein the vibration system comprises a diaphragm and a voice coil, the voice coil is bonded onto a central portion of the diaphragm, and the voice coil has a lead wire; an end surface of the housing connected to a fixed portion of the diaphragm is provided thereon with a conductive portion; a portion of the lead wire located between the fixed portion and the housing is configured to expose the lead wire and form an exposed conductive end, and when the fixed portion is fixedly connected to the housing, the exposed conductive end is crimped onto the conductive portion and is electrically connected to the conductive portion.

Abstract: A speaker includes a sound box, a speaker module, and a heat pipe. The sound box includes a first opening and a second opening. The speaker module is hermetically connected to the first opening. The heat pipe is hermetically connected to the second opening. The heat pipe includes a first end and a second end. The first end is located in the sound box. The second end is exposed to the second opening. The speaker module is fixedly connected to at least part of an outer wall of the heat pipe. In the speaker, a hollow heat pipe is fixedly connected to the speaker module, and vibration of the speaker module drives air in the heat pipe to flow to dissipate heat from the heat pipe. Further, the cold heat pipe carries heat away from the speaker module through heat transfer, thereby dissipating heat from the speaker.

Abstract: A MEMS transducer includes a transducer substrate, a counter electrode, and a diaphragm. The counter electrode is coupled to the transducer substrate. The diaphragm is oriented substantially parallel to the counter electrode and is spaced apart from the counter electrode to form a gap. A back volume of the MEMS transducer is an enclosed volume positioned between the counter electrode and the diaphragm. A height of the gap between the counter electrode and the diaphragm is less than two times the thermal boundary layer thickness within the back volume at an upper limit of the audio frequency band of the MEMS transducer.

Abstract: A method includes a step of forming a sacrificial layer on a first film, a step of forming a second film on the sacrificial layer, a step of forming an etching opening that extends through at least one of the first film and the second film so as to communicate with the sacrificial layer, and a step of forming a hollow portion by etching the sacrificial layer using a gas containing a fluorine-containing gas and hydrogen via the etching opening, wherein a composition ratio of silicon to nitrogen in a first region having a face in contact with the sacrificial layer is larger than a composition ratio of silicon to nitrogen in a second region not including the first region.

Abstract: Provided are a sounding structure and a terminal. The sounding structure comprises: a frame comprising an accommodation cavity, the accommodation cavity comprising a first opening and a second opening provided on two opposite sides of the frame; a magnetic circuit system arranged in the accommodation cavity and comprising a first channel and a second channel; a first vibrating diaphragm arranged to face the first opening and provided with a voice coil, the voice coil partially extending into the first channel; and a second vibrating diaphragm arranged to face the second opening, the second channel communicating the first opening with the second opening.

Abstract: The present invention discloses a sound production apparatus, comprising a first vibration system, a second vibration system and a magnetic circuit system, wherein the first vibration system comprises a first diaphragm and a voice coil arranged on a side, facing the magnetic circuit system, of the first diaphragm; the second vibration system comprises a second diaphragm arranged opposite to the first diaphragm, and a middle position of the second diaphragm is combined with a reinforcement portion; the reinforcement portion is provided with an extension portion extending along a direction close to the first diaphragm, and a position, corresponding to the extension portion, in the magnetic circuit system is provided with an avoidance portion; and the extension portion is capable of passing through the avoidance portion, and is fixed to the first diaphragm.