The present disclosure relates to an acoustic output device including an earphone core, a controller, a Bluetooth module, and a button module. The earphone core may include at least one low-frequency acoustic driver configured to output sounds from at least two first guiding holes and at least one high-frequency acoustic driver configured to output sounds from at least two second guiding holes. The controller may be configured to direct the at least one low-frequency acoustic driver to output the sounds in a first frequency range and direct the at least one high-frequency acoustic driver to output the sounds in a second frequency range. The Bluetooth module may be configured to connect the acoustic output device with at least one terminal device. The button module may be configured to implement an interaction between a user of the acoustic output device and the acoustic output device.

The present disclosure relates to an acoustic output device including an earphone core, a controller, a Bluetooth module, and a button module. The earphone core may include at least one low-frequency acoustic driver configured to output sounds from at least two first guiding holes and at least one high-frequency acoustic driver configured to output sounds from at least two second guiding holes. The controller may be configured to direct the at least one low-frequency acoustic driver to output the sounds in a first frequency range and direct the at least one high-frequency acoustic driver to output the sounds in a second frequency range. The Bluetooth module may be configured to connect the acoustic output device with at least one terminal device. The button module may be configured to implement an interaction between a user of the acoustic output device and the acoustic output device.

Audio signals from microphones of a mobile device are received. Each audio signal is generated by a respective microphone of the microphones. First microphones are selected from among the microphones to generate a front audio signal. Second microphones are selected from among the microphones to generate a back audio signal. A first audio signal portion, which is determined based at least in part on the back audio signal, is removed from the front audio signal to generate a modified front audio signal. A second audio signal portion is removed from the modified front audio signal to generate a left-front audio signal. A third audio signal portion is removed from the modified front audio signal to generate a right-front audio signal.

A device may include a display, a housing, a base, and a hinge operably coupling the display and the housing. The hinge may be moveable over a range of positions. One or more loudspeakers are disposed in the housing. A motor couples to the housing and is configured to rotate the housing and the display. The base is configured to remain stationary during actuation of the motor. In some instances, the device may include a camera and one or more microphones for determining a position of a user. The motor may actuate in a direction of the user to provide increase audio and/or visual experiences.

A microphone device, an interface circuit and method are provided for managing a potential difference in sensitivity to a detected environmental stimulus associated with a sensor arrangement, where multiple electrical signals forming a differential signal can be produced, and the multiple electrical signals can be better balanced. Such an interface circuit, which can be used within a microphone device includes a bias voltage generator having one or more bias output voltage terminals, where a respective one of one or more DC bias voltages is produced at each of the bias output voltage terminals, for being coupled to a pair of transduction elements of a sensor. The interface circuit further includes an amplifier circuit having a first input terminal coupled to a first one of the pair of output terminals of the sensor and having a second input terminal coupled to a second one of the pair of output terminals of the sensor, the amplifier circuit producing a differential output signal. The interface circuit still further includes a compensation circuit coupled to the amplifier circuit for producing a balance signal based on an output signal being produced by the amplifier circuit, wherein the balance signal compensates for any difference in amplitude in the first and second electrical signals that are received by the amplifier circuit from the sensor.

Sound quality is improved. A plurality of speaker units including a first speaker unit of a dynamic type, an arrangement case having an inner space formed as an arrangement space in which the plurality of speaker units is arranged, and a sound conduit protruding from the arrangement case and provided as a path for sound output from the plurality of speaker units are provided, the first speaker unit has a highest sound output band among the plurality of speaker units, the axial direction of the sound conduit and the axial direction of the first speaker unit are oriented in the same direction, the speaker units except the first speaker unit are arranged around the first speaker unit or on the opposite side to the sound conduit with the first speaker unit therebetween, and a central axis of the first speaker unit is positioned further on the inner side than the inner peripheral surface of the sound conduit.

Sound quality is improved. A plurality of speaker units including a first speaker unit of a dynamic type, an arrangement case having an inner space formed as an arrangement space in which the plurality of speaker units is arranged, and a sound conduit protruding from the arrangement case and provided as a path for sound output from the plurality of speaker units are provided, the first speaker unit has a highest sound output band among the plurality of speaker units, the axial direction of the sound conduit and the axial direction of the first speaker unit are oriented in the same direction, the speaker units except the first speaker unit are arranged around the first speaker unit or on the opposite side to the sound conduit with the first speaker unit therebetween, and a central axis of the first speaker unit is positioned further on the inner side than the inner peripheral surface of the sound conduit.

Loudspeaker enclosures and loudspeaker devices are provided. In some embodiments, a loudspeaker device is provided, the loudspeaker device comprising: a loudspeaker enclosure, comprising: a rear side; and a front side of the loudspeaker enclosure comprising: a lower portion of the front side comprising a first opening for receiving a first loudspeaker and a second opening for receiving a second loudspeaker; and an upper portion of the front side comprising a third opening for receiving a third loudspeaker, a first port, and a second port, wherein a distance from the lower portion of the front side to the rear side is greater than a distance from the upper portion of the front side to the rear side; the first loudspeaker positioned in the first opening; the second loudspeaker positioned in the second opening; and the third loudspeaker positioned in the third opening.

A modular surround sound assembly includes a base housing and an audio unit that is integrated into the base housing. The audio unit includes a plurality of base speakers integrated into the base housing. A communication port is integrated into the base housing and the communication port is in electrical communication with the audio unit. A docking station includes a docking cable that is matable to the communication port on the base housing. A plurality of satellite speakers is each pluggable into respective ones of a plurality of output ports on the docking station to emit audible sound corresponding to the audible sound emitted by the speakers in the base unit.

A modular surround sound assembly includes a base housing and an audio unit that is integrated into the base housing. The audio unit includes a plurality of base speakers integrated into the base housing. A communication port is integrated into the base housing and the communication port is in electrical communication with the audio unit. A docking station includes a docking cable that is matable to the communication port on the base housing. A plurality of satellite speakers is each pluggable into respective ones of a plurality of output ports on the docking station to emit audible sound corresponding to the audible sound emitted by the speakers in the base unit.