Abstract: A system may embed audio watermarks in audio data using an Eigenvector matrix. The system may detect audio watermarks in audio data despite the effects of reverberation. For example, the system may embed multiple repetitions of an audio watermark before generating output audio using loudspeaker(s). To detect the audio watermark in audio data generated by a microphone, the system may perform a self-correlation that indicates where the audio watermark is repeated. In some examples, the system may encode the audio watermark using multiple repetitions of a multi-segment Eigenvector. Additionally or alternatively, the system may encode the audio watermark using a binary sequence of positive and negative values, which may be used as a shared key for encoding/decoding the audio watermark. The audio watermark can be embedded in output audio data to enable wakeword suppression (e.g., avoid cross-talk between devices) and/or local signal transmission between devices in proximity to each other.

Abstract: The present disclosure provides a speaker, including a flexible circuit board, a holder, a diaphragm received in the holder, and a voice coil received in the holder and configured to drive the diaphragm to vibrate. The voice coil is electrically connected to the flexible circuit board, and includes an upper surface close to the diaphragm, a lower surface facing away from the diaphragm, and a side surface connecting the upper surface with the lower surface. The flexible circuit board includes a body portion supporting the voice coil. The body portion includes a bottom wall that abuts against the lower surface of the voice coil and an extension portion extending from the bottom wall while being bent towards the diaphragm. The extension portion is attached to and fixed to the side surface.

Abstract: A speaker and a method for manufacturing the speaker are provided. The speaker includes: a vibration unit; a magnetic circuit unit; and a housing for receiving the vibration unit and the magnetic circuit unit. The vibration unit includes: a first diaphragm fixed to the housing; a voice coil arranged under the first diaphragm to drive the first diaphragm to vibrate and emit sound; and an elastic support member arranged under the voice coil, fixed to the housing and elastically supporting the voice coil. The elastic support member includes a flexible circuit board connected to the voice coil and a second diaphragm fixed under the flexible circuit board. The housing includes a holder, the elastic support member is fixed to the holder, and the flexible circuit board is attached and fixed to the second diaphragm.

Abstract: A speaker box is provided in the present disclosure. The speaker box comprises a shell, a speaker, a sound guiding channel, an auxiliary sound cavity, a baffle and a cover plate. The diaphragm separates the receiving space into a front sound cavity and a rear cavity, the sound guiding channel connects the front sound cavity with the outside and forms a front cavity. The auxiliary sound cavity is provided with a first through hole communicating with the front cavity and a second through hole communicating with the outside, and the baffle is completely covered the first through hole. The baffle is provided with a channel therethrough and the auxiliary sound cavity is communicated with the front cavity through the channel. The cover plate completely covers the second through hole. Compared with the related art, the high frequency acoustic performance of the speaker box of the present disclosure is excellent.

Abstract: An assembly (1) for protecting an acoustic device comprises an expanded polytetrafluorethylene (ePTFE) membrane (3) and first and second polymeric substrates (2, 4) disposed on opposing sides (5, 6) of the membrane (3). The first substrate (2) is transmissive for laser light of a predetermined wavelength, and the membrane (3) is joined to the first and second substrates (2, 4) by first and second laser weld joints (9, 10) on the first side (5) of the membrane (3) and the second side (6) of the membrane (3), respectively, that are created in a single laser transmission welding step through the first polymeric substrate (2) towards the second polymeric substrate (4). The first side (5) of the membrane (3) may be at least partially absorbent for the laser light and the second side (6) may be at least partially transmissive for the laser light. This may be achieved by a color gradient from black to white from the first side (5) to the second side (6).

Abstract: A virtual reality apparatus comprising: at least one heat-generating virtual reality electronic component; a housing configured to contain the at least one heat-generating virtual reality electronic component; a microphone having an audio input positioned at a surface of the housing; and a plurality of elongated heat-conducting elements configured to conduct heat generated by the at least one heat-generating virtual reality electronic component from the inside of the housing to the outside of the housing, wherein the plurality of elongated heat-conducting elements protrude from the surface of the housing in proximity to the audio input of the microphone to disturb the flow of air at the surface and reduce the amount of wind noise detected by the microphone.

Abstract: The present disclosure provides a housing assembly for a terminal, and a terminal with the housing assembly. The housing assembly may include a middle frame, an electroacoustic assembly and decorative member. The electroacoustic assembly is arranged on the middle frame and defines a sound transmission hole. The decorative member defines an inner space. The at least portion of the decorative member faces the sound transmission hole. The decorative member is fixed to the electroacoustic assembly. The sound transmission hole directly communicates with the inner space of the decorative member.

Abstract: The present disclosure provides a speaker, comprising a basin frame with a receiving space, a vibration system disposed at the basin frame, and a magnetic circuit system configured for driving the vibration system to generate sounds by vibration, the vibration system comprises a diaphragm with an outer edge fixedly held by the basin frame and a voice coil configured for driving the diaphragm to vibrate, the voice coil includes a first voice and a second voice coil fixedly connected to the first voice coil, the first and second voice coils are disposed in parallel and symmetrically, the first and second voice coils are integrally wound molded and the winding direction of the first voice coil is opposite to that of the second voice coil. The speaker provided by the present disclosure could improve utilization of magnetic field, provide better vibration effect and reduce resonance frequency.

Abstract: A hearing aid device is provided. The hearing aid device at least includes a neckband and a first microphone. The neckband is worn on a neck of a user. The neckband defines a virtual datum plane and a first virtual plane parallel to each other, wherein the virtual datum plane overlaps a coronal plane of the user when the neckband is worn by the user, and a skin portion, furthest from the virtual datum plane, of a throat of the user is located on the first virtual plane. The first virtual plane is distant from the virtual datum plane by the first distance. The first microphone is disposed on the neckband, and is distant from the virtual datum plane by the second distance, wherein the second distance is less than the first distance.

Abstract: A speaker system includes a speaker configured to output sound from an electric signal, a sensing unit configured to measure at least one of current or a voltage of the speaker, an amplifier configured to supply current to the speaker, and a control unit configured to measure inductance of the speaker on the basis of the at least one of the current or the voltage of the speaker, to determine a current temperature on the basis of the inductance, and to adjust current to be applied to the speaker by the amplifier on the basis of the current temperature such that a variation in output of the speaker with respect to a temperature is compensated for.

Abstract: A suspension component may be used within a system for isolating vibrations produced by an electrical component. A body of the suspension component may be formed from a single piece of planar material. A suspension component includes a plurality of flexures. The plurality of flexures includes a first set of flexures configured to suspend a first sub-assembly of a transducer from support brackets, a second set of flexures configured to suspend a second sub-assembly of the transducer from the first sub-assembly, and a third set of flexures configured to suspend the second sub-assembly from the support brackets.

Abstract: The present technology can receive audio segments from sources within one or more conference room, and can create audio fingerprints from the sources. The audio fingerprints are optimized for audio in conference room environments, which include distortions from room impulse responses, and various encoding used by telecommunication networks. In some embodiments, when two audio segments are matched, a user equipment can be instructed to mute its speakers to avoid feedback. In some embodiments, when two audio segments are matched, a user equipment can be given instructions to join a conference taking place in the room in when the audio segment originated.

Abstract: The present invention provides a sound generator. The sound generator of the present disclosure is characterized in that the front cover hollows to form the glue slot which is around and communicated with the positioning holes. After being filled into the glue slot, the glue flows into the gap between the melting point posts and the positioning holes for filling. Therefore the horizontal sway of the front cover is reduced and even avoided, and then the front cover is fixed stably. At the same time, with the gap, the glue can flow to the position between the frame and the front cover, which increases the fixing strength and stability between the front cover and the frame with the melting points as well as the tensile property of the front cover, and therefore the acoustic stability of the sound generator is further optimized.

Abstract: A planar dynamic sound transducer includes a magnet arrangement which for example comprises bar magnets and a fixing frame, and a diaphragm arrangement. The diaphragm arrangement has a tensioned diaphragm film (diaphragm for short), a tensioning device for the diaphragm, and a conductor structure applied to the diaphragm. When the conductor structure is conventionally provided with electrical connections mechanically sensitive connections and/or high transfer resistances often occur. An improved diaphragm arrangement for a planar dynamic sound transducer includes a support frame having at least one contacting surface, and a diaphragm tensioned on the support frame, and which at least one electrically conductive conductor track is applied by coating. At least one end of the conductor track applied by coating extends on to the contacting surface of the support frame. The connecting line can be connected to the contacting surface of the support frame by way of a solder join.

Abstract: The present disclosure provides a sounding device including a holder, a vibration system fixed to the holder, and a magnetic circuit system configured to drive the vibration system to vibrate and sound. The vibration system includes a diaphragm fixed to the holder and a voice coil that drives the diaphragm to vibrate. The magnetic circuit system has a magnetic gap in which the voice coil is inserted. The voice coil includes voice coil wire layers that are formed by winding a voice coil wire and include an intermediate layer, an outer layer, and an inner layer. Ends of the voice coil wire layers away from the diaphragm are aligned. A height of the outer layer and a height of the inner layer are smaller than a height of the intermediate layer. The intermediate layer is glued and fixed to the diaphragm.

Abstract: A memory is configured to store listener data indicative of radio stations listened to by a plurality of listeners and genre classifications of the radio stations. A processor is programmed to combine a plurality of the genre classifications into a single combined genre classification responsive to listener behavior across the plurality of listeners indicating overlap in listening to the plurality of the genre classifications; separate one of the genre classifications into a plurality of separated genre classifications responsive to listener behavior across the plurality of listeners indicating disparate subsets of radio stations within the one of the genre classifications; and reclassify the radio stations according to the genre classifications as updated.

Abstract: Systems and methods for generating a haptic output from an audio signal having a continuous stream of sampled digital audio data are provided. A haptic processing system receives the digital audio data, analyses the digital audio data for processing and extracts haptic signals for generating a haptic effect through an actuator. The method includes passing the digital audio signal on through dynamic processor(s), adjusting the dynamic range of the digital audio signal, extracting the signal envelope of the audio data, synthesising low-frequency signals from the extracted signal envelope, and enhancing the low-frequency content using a resonator. The haptic output is generated by mixing the digital audio signal with outputs from the different modules of the haptic processing system. An analytics module monitors, controls and adjusts the processing of the digital audio signal at the noise gate module, the compressor module and the envelope module to enhance the haptic output.

Abstract: An MEMS microphone device and an electronics apparatus are provided. The MEMS microphone device comprises: a substrate; a MEMS microphone element placed on the substrate; a cover encapsulating the MEMS microphone element together with the substrate; and an acoustic port for the MEMS microphone element, wherein a compliant membrane is provided to seal the acoustic port, and the membrane has a mechanical stiffness lower than that of the diaphragm of the MEMS microphone element.

Abstract: A system and method can determine a time-varying position of a sound in a multi-channel audio signal. At least one processor can: receive a multi-channel audio signal representing a sound, each channel of the multi-channel audio signal providing audio associated with a corresponding channel position around a perimeter of a soundstage; determine a time-varying volume level for each channel of the multi-channel audio signal; determine, from the time-varying volume levels and the channel positions, a time-varying position in the soundstage of the sound; and generate a location data signal representing the time-varying position of the sound. The channel positions can be time-invariant. The position magnitude can be scaled to provide a unit magnitude as a sound pans from a channel to an adjacent channel. The position azimuth angle can be scaled to account for center location bias.

Abstract: An earpiece for an earphone comprising a first portion (100), a second portion (101), and a resilient bridge (102) interconnecting the first portion (100) and second portion (101), wherein the resilient bridge (102) is configured to flex so that the earpiece can conform to ear canal geometry as it is received in a user ear canal and thereby be at least substantially locatable within the ear canal. The resilient bridge (102) may be configured to provide a biasing effect so that the first portion (100) and/or second portion (101) can bias against the ear canal wall (15).