The present disclosure discloses an acoustic output apparatus including at least one acoustic driver, a controller, and a supporting structure. The at least one acoustic driver may be configured to output sounds through at least two sound guiding holes. The at least two sound guiding holes may include a first sound guiding hole and a second sound guiding hole. The controller may be configured to control a phase and an amplitude of the sounds generated by the at least one acoustic driver using a control signal such that the sounds output by the at least one acoustic driver through the first and second sound guiding holes have opposite phases. The supporting structure may be provided with a baffle and configured to support the at least one acoustic driver such that the first and second sound guiding holes are located on both sides of the baffle.

The present disclosure relates to a headset which is configured to receive a detachable arm, wherein the detachable arm comprises an arm input transducer. The headset may be configured to be operated in different modes depending on the arm being attached or not. The headset may be configured to detect if the arm is attached or not. A set of magnets may be used to keep the arm attached to the earcup while allowing a user to detach the arm from the earcup.

A headphone includes: a housing including a first aperture; a first driver unit disposed in the housing; a partition wall dividing an internal space of the housing into a first space and a second space, the first space communicating with an external space through the first aperture and containing the first driver unit; and a second driver unit attached to the partition wall.

The present disclosure provides a sound output device, a sensory sound source adjustment method, and a volume adjustment method. The sensory sound source adjustment method includes: obtaining a volume difference between the first sound wave and the second sound wave; and adjusting a sound generation time difference between the first sound wave and the second sound wave. The volume adjustment method includes: obtaining a volume difference between the first sound wave and the second sound wave; and adjusting an amplitude difference between the first excitation and the second excitation. The sound output device and the sensory sound source adjustment method may correct an shift of a sensory sound source perceived by a user; and the sound output device and the volume adjustment method may correct a volume difference between a first speaker and a second speaker.

A multifunctional earphone system for sports activities is described which comprises the following: a first apparatus configured to be carried in one of a user's ears, the first apparatus comprising a first data communication unit and a first loudspeaker, and a second apparatus configured to be carried in the user's other ear, the second apparatus comprising a second data communication unit and a second loudspeaker, wherein at least one of the first apparatus and the second apparatus comprises a sensor unit and a data processing unit, wherein the data processing unit is configured to generate performance data based on measurement data acquired by the sensor unit, wherein the first apparatus further comprises a signal processing unit configured to generate a binaural audio signal based on the performance data, the binaural audio signal comprising a first signal part to be output by the first loudspeaker and a second signal part to be output by the second loudspeaker, and wherein the first data communication unit is configured to communicate the second signal part of the binaural audio signal to the second data communication unit. Furthermore, a method is described.

A multifunctional earphone system for sports activities is described which comprises the following: a first apparatus configured to be carried in one of a user's ears, the first apparatus comprising a first data communication unit and a first loudspeaker, and a second apparatus configured to be carried in the user's other ear, the second apparatus comprising a second data communication unit and a second loudspeaker, wherein at least one of the first apparatus and the second apparatus comprises a sensor unit and a data processing unit, wherein the data processing unit is configured to generate performance data based on measurement data acquired by the sensor unit, wherein the first apparatus further comprises a signal processing unit configured to generate a binaural audio signal based on the performance data, the binaural audio signal comprising a first signal part to be output by the first loudspeaker and a second signal part to be output by the second loudspeaker, and wherein the first data communication unit is configured to communicate the second signal part of the binaural audio signal to the second data communication unit. Furthermore, a method is described.

Some implementations may involve receiving, via an interface system, personnel location data indicating a location of at least one person and receiving, from an orientation system, headset orientation data corresponding with the orientation of a headset. First environmental element location data, indicating a location of at least a first environmental element, may be determined. Based at least in part on the headset orientation data, the personnel location data and the first environmental element location data, headset coordinate locations of at least one person and at least the first environmental element in a headset coordinate system corresponding with the orientation of the headset may be determined. An apparatus may be caused to provide spatialization indications of the headset coordinate locations. Providing the spatialization indications may involve controlling a speaker system to provide environmental element sonification corresponding with at least the first environmental element location data.

Some implementations may involve receiving, via an interface system, personnel location data indicating a location of at least one person and receiving, from an orientation system, headset orientation data corresponding with the orientation of a headset. First environmental element location data, indicating a location of at least a first environmental element, may be determined. Based at least in part on the headset orientation data, the personnel location data and the first environmental element location data, headset coordinate locations of at least one person and at least the first environmental element in a headset coordinate system corresponding with the orientation of the headset may be determined. An apparatus may be caused to provide spatialization indications of the headset coordinate locations. Providing the spatialization indications may involve controlling a speaker system to provide environmental element sonification corresponding with at least the first environmental element location data.

A wearable electronic device is provided that includes a battery, at least one solar panel configured to charge the battery, an output charger connected through a wire to the out least one solar panel, and a controller configured to charge an external electronic device through the output charger.

Systems and methods of presenting an output audio signal to a listener located at a first location in a virtual environment are disclosed. According to embodiments of a method, an input audio signal is received. For each sound source of a plurality of sound sources in the virtual environment, a respective first intermediate audio signal corresponding to the input audio signal is determined, based on a location of the respective sound source in the virtual environment, and the respective first intermediate audio signal is associated with a first bus. For each of the sound sources of the plurality of sound sources in the virtual environment, a respective second intermediate audio signal is determined. The respective second intermediate audio signal corresponds to a reverberation of the input audio signal in the virtual environment. The respective second intermediate audio signal is determined based on a location of the respective sound source, and further based on an acoustic property of the virtual environment. The respective second intermediate audio signal is associated with a second bus. The output audio signal is presented to the listener via the first bus and the second bus.