Abstract: A system includes a first device and a second device configured to exchange data packages over a bi-directional wireless communication channel, wherein the first device and the second device are configured for use by a user; wherein the first device is configured to provide a first data package, wherein the first data package belongs to a first packet category and comprises first audio data; wherein the first device is also configured to transmit the first data package to the second device, and receive a second data package belonging to the first packet category; and wherein the second data package comprises second audio data, a code indicating whether data in the second data package is corrupted or invalid, and an indicator indicating whether the first data package was successfully received by the second device or not.

Abstract: A method for adjusting sound (e.g., aural) output of a worn audio device includes obtaining orientation or position data that indicates an orientation or a position of the worn audio device. The method also includes determining at least one change in the orientation or position data indicating a change in orientation or position of the worn audio device. The method also includes adjusting or selecting a filter for adjusting aural output produced by the worn audio device using the orientation or position data, and operating the worn audio device to provide the sound output using the filter in response to the at least one change in the orientation or position data.

Abstract: A hearing device may include a housing configured to be at least partially inserted into an ear canal of a user and comprising a venting channel, wherein the venting channel is configured to provide for venting between an inner region of the ear canal and an ambient environment outside the ear canal through the venting channel; an acoustic valve comprising a valve member moveable relative to the venting channel between different positions; a sound detector configured to provide an audio signal representative of a detected sound; a processor configured to determine a characteristic from the audio signal and to classify the audio signal by assigning the audio signal to a class from a plurality of predetermined classes depending on the determined characteristic; and an output transducer configured to be acoustically coupled to the inner region of the ear canal.

Abstract: Embodiments relate to calibrating head-related transfer functions (HRTFs) for a user of an audio system (e.g., as a component of a headset) using cartilage conducted sounds. A test sound is presented to a user using a transducer (e.g., cartilage conduction) and an audio signal is responsively received via a microphone at an entrance to the user's ear canal. The test sound and audio signal combination may be provided to an audio server where a model is used to determine one or more HRTFs for the user. Information describing the one or more HRTFs is provided to the audio system to be used for providing audio to the user. The audio server may also use a model to determine geometric information describing a pinna of the user based on the combination. In one embodiment, the geometric information is used to determine the one or more HRTFs for the user.

Abstract: An ultrasonic sensor includes: an element storage case including a case-side diaphragm having a thickness direction along a directional axis; and an ultrasonic element accommodated in the element storage case and spaced apart from the case-side diaphragm. The ultrasonic element includes an element-side diaphragm having the thickness direction along the directional axis and provided by a thin part of a semiconductor substrate. The semiconductor substrate is arranged to provide a closed space between the case-side diaphragm and the element-side diaphragm. The semiconductor substrate is fixed and supported by the element-storage case.

Abstract: The present disclosure relates to a storage box. The storage box includes a body, a cover, and a first magnetic unit. The body is provided with a receiving space. The cover is rotatably attached to the body and is configured to rotate relative to the body to drive the storage box between an open state and a closed state. In the open state, the cover covers the receiving space. In the closed state, the receiving space is exposed. The first magnetic unit includes a first magnetic member attached to the body and a first attracting member attached to the cover. Opening the storage box from the closed state causes the first attracting member to move closer to the first magnetic member. Magnetic force between the first magnetic member and the first attracting member drives the cover to rotate away from the closed state and into the open state.

Abstract: An electronic device includes a housing; a case including a first plate facing in a first direction, a second plate facing in a second direction opposite to the first direction, and a recess received in the housing and formed toward an inner space at an outer surface of the first plate or the second plate; an electronic element received in the case and configured to generate a vibration in an operation process; an anti-vibration member seated in the recess of the case and having an insertion hole formed in a center thereof; and a fixing protrusion protruded from an inner surface of the housing, having a latch jaw at an end portion, and inserted into and coupled to the insertion hole of the anti-vibration member.

Abstract: The embodiments of the disclosure provide a method for providing an occluded sound effect and an electronic device. The method includes: providing a virtual environment, wherein the virtual environment comprises a first object, and the first object is approximated as a second object; defining an object detection range of a sound source based on a sound ray originated from the sound source; in response to determining that the first object enters the object detection range, defining a reference plane based on a reference point on the second object and the sound ray, wherein the reference plane has an intersection area with the object detection range; projecting the second object onto the reference plane as a first projection; determining a sound occluding factor based on the intersection area and the first projection; and adjusting a sound signal based on the sound occluding factor.

Abstract: A display device includes a display panel including a first substrate and a pixel array layer disposed on a first surface of the first substrate, a vibration generator including a sound output unit which vibrates the display panel to output a sound and a first ultrasonic wave output unit which vibrates the display panel to output ultrasonic waves, and a first ultrasonic wave absorbing film overlapping the first ultrasonic wave output unit in a thickness direction of the display panel, where the first ultrasonic wave absorbing film absorbs the ultrasonic waves.

Abstract: In some examples, a content consumer device configured to play one or more of a plurality of audio streams includes a memory configured to store the plurality of audio streams and audio location information associated with the plurality of audio streams and representative of audio stream coordinates in an acoustical space where an audio stream was captured or synthesized or both. Each of the audio streams is representative of a soundfield. The content consumer device also includes one or more processors coupled to the memory, and configured to determine device location information representative of device coordinates of the content consumer device in the acoustical space. The one or more processors are configured to select, based on the device location information and the audio location information, a subset of the plurality of audio streams, and output, based on the subset of the plurality of audio streams, one or more speaker feeds.

Abstract: A device may be configured to play one or more of a plurality of audio streams. The device may include a memory configured to store the plurality of audio streams, each of the audio streams representative of a soundfield. The device also may include one or more processors coupled to the memory, and configured to present a user interface to a user, obtain an indication from a user via the user interface representing a desired listening position; and select, based on the indication, at least one audio stream of the plurality of audio streams.

Abstract: An electrodynamic acoustic transducer, is disclosed, which comprises a frame and/or a housing, a membrane, at least one coil and a magnet system. The coil in a cross sectional view with a coil axis being part of the sectional plane comprises a plurality of conductive layers formed by an electrical conductor of the coil. The electrical conductor has a rectangular cross section in said cross sectional view, wherein a longer side of the rectangular cross section is substantially perpendicular to the loop axis. Furthermore, a method for manufacturing an electrodynamic acoustic transducer of the proposed kind is disclosed. According to this method, a stack of conductive layers is made from the electrical conductor by stacking of separate pieces of the electrical conductor and electrically connecting the stacked separate pieces and/or by folding of the electrical conductor.

Abstract: A hearing device has an acceleration sensor that measure along three mutually perpendicular measurement axis. A movement of the hearing aid wearer is deduced from acceleration data of the acceleration sensor issued in an acceleration signal, a movement plane of the movement of the hearing aid wearer is derived from the acceleration data, a movement axis and a movement direction of the movement are ascertained from the acceleration data, and the presence of a rotational movement of the head is deduced on the basis of the movement plane, the movement axis and the movement direction. A direction of view probability distribution is created from the detected rotational movements, in particular on the basis of a yaw angle ascertained in the process. The direction of view probability distribution specifies a probability that the actual direction of view of the hearing aid wearer extends along an assigned angle.

Abstract: A method and a device for processing an audio signal in a vehicle are provided. The method includes: obtaining an audio signal by a microphone array; performing echo cancellation on the obtained audio signal, to obtain a first processed signal; and performing beamforming on the first processed signal according to sound zones in which microphones of the microphone array are located, to obtain a second processed signal, wherein the vehicle includes at least two sound zones, and each microphone of the microphone array is located in at least one sound zone. With the beamforming, the requirements for isolation degree between different sound zones is not high, and the sound source of the audio signal can be accurately determined.

Abstract: The present invention relates to a bone conduction speaker and its compound vibration device. The compound vibration device comprises a vibration conductive plate and a vibration board, the vibration conductive plate is set to be the first torus, where at least two first rods inside it converge to its center; the vibration board is set as the second torus, where at least two second rods inside it converge to its center. The vibration conductive plate is fixed with the vibration board; the first torus is fixed on a magnetic system, and the second torus comprises a fixed voice coil, which is driven by the magnetic system. The bone conduction speaker in the present invention and its compound vibration device adopt the fixed vibration conductive plate and vibration board, making the technique simpler with a lower cost; because the two adjustable parts in the compound vibration device can adjust both low frequency and high frequency area, the frequency response obtained is flatter and the sound is broader.

Abstract: This disclosure provides methods, systems, and apparatuses, for a microphone circuit. In particular, the circuit includes transducer that can sense pressure changes and generate an electrical signal having frequency components in a first frequency range and in a second frequency range higher than the first frequency range. The circuit includes a feedback circuitry that can attenuate frequency components in the first frequency range in the electrical signal and, from it, generate an audio signal. A feedback path circuit includes a low pass filter having a cut-off frequency within the first frequency range, and filters the audio signal to generate a low pass filter signal that includes frequency components in the first frequency range. The low pass filter signal can be used to generate a low frequency pressure signal that corresponds to low frequency pressure changes sensed by the transducer.

Abstract: The present invention relates to a bone conduction speaker and its compound vibration device. The compound vibration device comprises a vibration conductive plate and a vibration board, the vibration conductive plate is set to be the first torus, where at least two first rods inside it converge to its center; the vibration board is set as the second torus, where at least two second rods inside it converge to its center. The vibration conductive plate is fixed with the vibration board; the first torus is fixed on a magnetic system, and the second torus comprises a fixed voice coil, which is driven by the magnetic system. The bone conduction speaker in the present invention and its compound vibration device adopt the fixed vibration conductive plate and vibration board, making the technique simpler with a lower cost; because the two adjustable parts in the compound vibration device can adjust both low frequency and high frequency area, the frequency response obtained is flatter and the sound is broader.

Abstract: A detection device and an indoor navigation system are provided. The detection device includes two detection modules each including a sound receiver for receiving sound from a peripheral object and a signal converting circuit that is electrically coupled to the sound receiver and that is configured to convert input signal from the sound receiver into a target spectrogram. The two spectrograms from the signal converting circuits have a time/phase difference, and at least one wireless earphone includes a storage unit and a judging circuit that is electrically coupled to the storage unit and the two signal converting circuits. The judging circuit is configured to compare any target spectrogram with basic spectrograms of the storage unit so as to determine which kind of objects the peripheral object is, and is configured to obtain an instant position of the peripheral object by the time/phase difference.

Abstract: Circular flat panel loudspeaker comprising a resonant with a rear surface opposite the front surface. An exciter is provided at an axial centre of panel and coupled to the rear surface of the panel to cause the panel to vibrate, on operation of the exciter, to generate sound. A frame is provided for mounting in the surface and having the rear surface of the panel fixed thereto around the whole of the outer boundary of the panel, such that when mounted in the mounting surface and when the panel is caused by the exciter to vibrate on operation of the exciter, the outer boundary of the panel is fixed relative to the mounting surface.

Abstract: An acoustic reflector for a microphone to measure flyover noise generated by an aircraft. The microphone is configured to measure flyover noise generated by an aircraft flying on a preset path. The acoustic reflector includes at least a central portion having the shape of an ellipse having a major axis and a plurality of peripheral portions distributed around the central portion. The acoustic reflector allows edge effects to be attenuated at the low frequencies of the noise to be measured.