Abstract: An audio system is proposed, dynamically playing optimized audio signals based on user position. A sensor circuits dynamically senses a target space to generate field context information. First speaker and second speaker are arranged for audio playback. A host device recognizes a user from the field context information, determines the user position corresponding to the target space, and adaptively assigns the user position as a target listening spot. A sensor circuit contains a camera capturing an ambient image out of the target space. A recognizer circuit analyzes the ambient image to obtain from the target space, the location, size, and acoustic attribute information of an ambient object, allowing the control circuit to accordingly perform a channel-based compensation operation on the target listening spot to generate optimized first channel audio signal and second channel audio signal.

Abstract: Embodiments are disclosed for hybrid near/far-field speaker virtualization.

Abstract: An electronic device package comprises a primary microphone having a frequency response having a first resonance frequency, and a reference microphone having a frequency response including a second resonance frequency, the primary microphone and the reference microphone configured to substantially simultaneously receive a same acoustic signal to produce a transduced signal of the primary microphone and a transduced signal of the reference microphone, the second resonance frequency of the reference microphone being different than the first resonance frequency of the primary microphone, the package having dimensions that cause the primary microphone and reference microphone to be acoustically isolated from one another at the resonance frequency of the primary microphone, there being less than 3 dB of acoustic coupling between the primary microphone and reference microphone at the first resonance frequency.

Abstract: The present invention provides a speaker box. The speaker box includes a housing, a speaker unit, and an air-permeable spacer assembly accommodated in the housing. The air-permeable spacer assembly includes a bracket and an air-permeable spacer fixed to the bracket. The housing includes a bottom wall and a side wall. The bracket includes an annular main body and a leg. The air-permeable spacer is attached to the annual main body. The annular main body is fixed to the side wall. The leg is fixed to the bottom wall. At the same time, the bracket can be easily and conveniently adapted to various complex shapes of the housing through the annular main body and the leg. In addition, the filling amount of the sound absorbing powder can be increased.

Abstract: The present invention provides a MEMS microphone, including a housing body with a containment space, a sound hole penetrating the housing body, a MEMS microphone chip, an ASIC chip and a subtractor accommodated in the containment space. The MEMS microphone chip includes at least a first MEMS microphone chip and a second MEMS microphone chip. the first MEMS microphone chip is different from the frequency response droop characteristic of the second MEMS microphone chip. the first MEMS microphone chip and the output signal of the second MEMS microphone chip are output to the subtractor, and are output to the ASIC chip after the subtractor performs subtraction processing. Compared with the related art, the MEMS microphone of the present invention has good anti-interference performance and good sensitivity.

Abstract: A display apparatus includes a display panel configured to display an image by emitting light, the display panel including a first area, a second area, and a third area; a first sound generating device in the first area, the first sound generating device including two sub-sound generating devices; a second sound generating device in the second area, the second sound generating device including two sub-sound generating devices; a third sound generating device in the third area; a first partition between the first area and the third area; a second partition between the second area and the third area; a third partition in a periphery of the display panel; and a fourth partition between the two sub-sound generating devices in each of the first area and the second area.

Abstract: An open acoustic device (100) may include a fixing structure (120) configured to fix the acoustic device (100) near an ear of a user without blocking an ear canal of the user; a first microphone array (130) configured to acquire environmental noise (410); a signal processor (140) configured to: determine, based on the environmental noise, a primary route transfer function (420) between the first microphone array (130) and the ear canal of the user; estimate, based on the environmental noise and the primary route transfer function, a noise signal (430) at the ear canal of the user; and generate, based on the noise signal at the ear canal of the user, a noise reduction signal (440); and a speaker (150) configured to output, according to the noise reduction signal, a noise reduction acoustic wave (450), the noise reduction acoustic wave being configured to eliminate the noise signal.

Abstract: Methods and systems for assisting tonally-challenged singers. A microphone can be integrated with a sound reinforcement system used in a live performance. The microphone, which can transduce the performer's voice, can serve multiple purposes such as, for example, to feed input to the natural ear and to the sound reinforcement system. The processed sound of the performer's voice (with fundamental frequency emphasized) can be mixed into the signal fed to a stage “monitor” speaker facing the performer or a headset worn by the performer.

Abstract: A MEMS capacitance microphone includes a substrate, a diaphragm, a back plate structure and a plurality of support structures. The substrate is provided with a plurality of gate structures and a cavity penetrating through the substrate, and the gate structures extend from an inner wall of the cavity to the center of the cavity. The diaphragm is vibratably arranged on one side of the substrate and includes a main deformation zone and a non-main deformation zone. The back plate structure is arranged on the diaphragm, and the diaphragm is located between the substrate and the back plate structure. The support structures are arranged on the back plate structure, penetrate the periphery of the main deformation zone, and respectively abut against the gate structures. The MEMS capacitance microphone has higher rigidity of a back plate, and is capable of greatly reducing the impedance of air to increase its signal-to-noise ratio.

Abstract: A multi-function acoustic sensor may include a plate structure having a plurality of open spaces that are spaced apart from each other; a plurality of sensors provided on the plate structure, the plurality of sensors including a plurality of sensor elements respectively provided to overlap the plurality of open spaces; and a case having an inner space in which the plurality of sensors are provided, the case including: a first case surface on which the plurality of sensors are provided, the first case surface having at least one first hole, and a second case surface opposite to the first case surface, the second case surface having at least one second hole, wherein the at least one first hole and the at least one second hole form at least one path along which sound is transmitted and sensed through at least one of the plurality of open spaces of the plate structure.

Abstract: Disclosed herein are examples of an in-ear audio device comprising a speaker cavity containing a speaker, a resonator comprising a resonator cavity and a resonator vent, wherein the resonator cavity is in fluid communication with the speaker cavity via the resonator vent, and a microphone comprising a microphone inlet, wherein the speaker cavity is in fluid communication with the microphone inlet via the resonator.

Abstract: There is provided an ear cup including a housing containing a filter assembly and a motor-driven impeller for creating an airflow through the filter assembly, the housing including an air outlet downstream from the filter assembly for emitting the filtered airflow from the housing. The ear cup further includes an acoustic driver carried by the housing, a reference internal noise sensor carried by the housing, and active noise control circuitry that is configured to use a signal provided by the reference internal noise sensor to operate the acoustic driver.

Abstract: The present application discloses a sound-output device, a vibration speaker configured to generate a bone-conducted sound wave; and an air-conducted speaker configured to generate an air-conducted sound wave. The vibration speaker is coupled to the air-conducted speaker through a mechanical structure; and the bone-conducted sound wave is input to the air-conducted speaker at least in part as an input signal.

Abstract: Technology described in this document can be embodied in a method that includes receiving a first input signal representing audio captured by a first sensor disposed in a signal path of an active noise reduction (ANR) device, and receiving a second input signal representing audio captured by a second sensor disposed in the signal path of the ANR device. The method also includes processing, by at least one compensator, the first input signal and the second input signal to generate a drive signal for an acoustic transducer of the ANR device. A gain applied to the signal path is at least 3 dB less relative to an ANR signal path having a single sensor.

Abstract: The present disclosure relates to a magnetic circuit assembly of a bone conduction speaker. The magnetic circuit assembly may generate a first magnetic field. The magnetic circuit assembly may include a first magnetic element, and the first magnetic element may generate a second magnetic field. The magnetic circuit may further include a first magnetic guide element and at least one second magnetic element. The at least one second magnetic element may be configured to surround the first magnetic element and a magnetic gap may be configured between the second magnetic element and the first magnetic element. A magnetic field strength of the first magnetic field within the magnetic gap may exceed a magnetic field strength of the second magnetic field within the magnetic gap.

Abstract: In one embodiment, an eyewear frame for a user includes at least a front portion with two side portions; two speakers, one in each side portion; a connection region at one side portion, with an electrical connector having two conductive pads to connect to corresponding conductive contacts of a counterpart connector; a rechargeable battery; a microphone in the frame; and wireless communication circuitry in the frame. The connection region can be provided at an inside surface of one of the side portions. The eyewear frame can also include a touch-sensitive input surface on the eyewear frame configured to provide an input to the frame to perform a function. Another embodiment includes a headset with an electrical connector having a conductive pad to connect to a corresponding conductive contact of a counterpart connector. The headset can also include an area for attachment via magnetic force.

Abstract: An optical microphone assembly including a micro-electromechanical system (MEMS) component, a semiconductor chip, and an outer housing including at least part of a non-MEMS supporting structure and defining an aperture. The MEMS component includes an interferometric arrangement which includes a membrane and at least one optical element spaced from the membrane. The semiconductor chip includes at least one photo detector and a light source. The MEMS component is mounted on the non-MEMS supporting structure and sealed to the outer housing such that the MEMS component closes the aperture. The semiconductor chip is mounted separately from the MEMS component on the non-MEMS supporting structure in a spaced relationship with the MEMS component such that the MEMS component is displaced relative to the semiconductor chip in a direction perpendicular to a reflecting surface of the membrane.

Abstract: [Problem] To enable the desired number of channels to be listened to at a lower cost and without wasting resources. [Solution] Process multi-channel digital audio signals by coordinating between a plurality of AV amp devices 1. An operation terminal 5 assigns audio channels to be processed, to each AV amp device 1, and, on the basis of the signal processing time for each AV amp device 1, determines an output delay time for each AV amp device 1 so that the output timing for analog audio signals matches for all AV amp devices 1. Each AV amp device 1 decodes input digital audio signals into analog audio signals for audio channels assigned to that AV amp device 1 by the operation terminal 5 and delays the output of the decoded analog audio signal, by the output delay time for that AV amp device 1 determined by the operation terminal 5.

Abstract: A vibration device includes: a piezoelectric unit including a piezoelectric element; a housing that holds the piezoelectric unit; a wiring member electrically connected to the piezoelectric unit; and a joining member that joins the housing to an external device. The housing includes a bottom surface portion to which the piezoelectric unit is fixed, and a side surface portion standing at an edge portion of the bottom surface portion. The side surface portion has a first surface formed on a top portion of the side surface portion, and a second surface that is one step lowered from the first surface by a cutout portion formed in the top portion. The joining member extends along the first surface to bridge over the cutout portion. The wiring member is joined to the joining member at a position of the first surface, and passes through the cutout portion in a state where the wiring member is not joined to the second surface.

Abstract: The technology described in this document can be embodied in a method that includes receiving an input signal captured by one or more sensors associated with an active noise reduction (ANR) headphone, and determining one or more characteristics of a first portion of the input signal. Based on the one or more characteristics of the first portion of the input signal, a gain of a variable gain amplifier (VGA) disposed in an ANR signal flow path can be adjusted, and accordingly, a set of coefficients for a tunable digital filter disposed in the ANR signal flow path can be selected. The method further includes processing a second portion of the input signal in the ANR signal flow path using the adjusted gain and selected set of coefficients to generate a second output signal for the electroacoustic transducer of the ANR headphone.