Abstract: Systems and methods for selectively providing audio alerts via a speaker device are disclosed herein. A system plays first audio content through a speaker. A microphone captures second audio content comprising an alert. Output of the second audio content through the speaker is suppressed by using noise cancellation. The system identifies the alert within the second audio content and determines a priority level of the alert. The system determines, based on the priority level, that the alert should be reproduced, and audibly reproduces the alert via the speaker, with the first audio content or instead of the first audio content.

Abstract: A system that performs sound source localization (SSL) using acoustic wave decomposition (AWD) or an approximation. When a device detects a wakeword represented in audio data, the device performs SSL processing in order to determine a position of the user relative to the device (e.g., estimate angle of the user). The device calculates noise statistics based on first audio data representing the wakeword and second audio data preceding the wakeword. Thus, upon detecting the wakeword, the device calculates the noise statistics and a signal quality metric corresponding to the wakeword. In addition, the device uses Multi-Channel Linear Prediction Coding (MCLPC) coefficients to average out the room impulse response. Using the noise statistics, the MCLPC coefficients, and the audio data, the device performs AWD processing to decompose the sound field to disjoint acoustic plane waves, enabling the device to identify the most likely direction for the line-of-sight component of speech.

Abstract: An acoustic microphone assembly for surveillance into a protected space includes a microphone including a transducer and a diagram adapted for picking up acoustic sound waves, electronic circuitry for processing input, a power source, and an audio output wire or trace for delivering processed digital sound to a sound system, a cover plate having at least two bolt openings for mounting to a base plate on a wall or structure the cover plate covering an opening there through into the protected space, the cover plate accepting an orthogonal mounting of the microphone, and a sound diffraction pattern of different sized openings placed through the cover plate, the sound diffraction pattern located in alignment to the mounted microphone head and having a foot print roughly equal to the circumference of the head of the microphone.

Abstract: An active noise cancellation system has a secondary path including a loudspeaker configured to output an anti-noise signal to cancel noise in a noise cancellation zone, and an error microphone configured to sense sound in the noise cancellation zone. The ANC system further includes a logic device configured to adaptively generate the anti-noise signal for playback through the loudspeaker based at least in part on a feedback signal from the error microphone and identify a user of the active noise cancellation system based, at least in part, on a measured frequency response of the secondary path. The logic device is further configured to identify the user of the active noise cancellation system through a comparison of the measured frequency response of the secondary path to stored models and may be configured to execute a new user enrollment process, store user profiles, and/or switch between in-ear and open-air states.

Abstract: Methods and systems are provided for independent audio volume control. User input may be received in an audio setup configured for combined-game-and-chat audio, with the user input including one or both of a selection of a desired volume of a chat audio component of the combined-game-and-chat audio signal, and a selection of a desired volume of a game audio component of the combined-game-and-chat audio signal. Based on the user input, a corresponding mix setting may be determined, with the mix setting including one or more control parameters for adaptively controlling mixing of the chat audio component and the game audio component to generate the combined-game-and-chat audio signal. The mix setting may be determined based on a data set characterizing an audio device where at least portion of the mixing is performed. The data set may be pre-programmed and/or determined based on testing of the audio device.

Abstract: A method for transmitting audio data performed by an audio data transmission apparatus in accordance with the present invention comprises the steps of: generating playback environment information of three-dimensional audio content; encoding a three-dimensional audio signal of the three-dimensional audio content; and transmitting, to an audio data reception apparatus, the encoded three-dimensional audio signal of the three-dimensional audio content and the generated playback environment information, wherein the playback environment information includes environment information of a room in which the three-dimensional audio content is played.

Abstract: A compact multi-element microphone has two rings of directional sensors. Using simple analog electronics, it delivers first-order outputs with low noise, wide bandwidth and tight transient response. The double-ring structure provides exceptionally high directional fidelity in the horizontal plane, while also keeping out-of-plane behaviour under control. This enables faithful capture of ambience, reflections and reverberation. A non-radial capsule arrangement moderates cavity resonances and reduces shading. Combined with digital electronics, the array can efficiently provide second-order and higher-order horizontal directivities that maintain their performance over a wider frequency range than with prior solutions. Outputs can be mono, two-channel stereo and multichannel surround sound. Applications include 360-degree immersive audio, with-height concert hall recording, and advanced voice capture using electronic steering of beams and nulls.

Abstract: An electronic device includes a housing surrounding an exterior of the electronic device and including at least one opening, a sensor module including at least one sensor, a sound output device including sound output circuitry configured to output an acoustic-signal through the at least one opening, a memory, and a processor electrically connected to the sensor module and the sound output device, wherein the processor may be configured to: determine whether the electronic device is in a state where a foreign substance has entered into the electronic device through the at least one opening, determine whether the electronic device is in a first disposition state using the sensor module based at least on determining that the electronic device is in the state where the foreign substance has entered into the electronic device, and control the electronic device to output a specified acoustic-signal having a specified frequency band and a specified waveform through the sound output device based on the electronic dev

Abstract: The present disclosure relates a capturing device of remote warning sound component which utilizes an audio pick-up device receives a remote sound signal in a remote range, and a processor generates a warning sound component through amplifying a sound feature point audio in a sound component according to warning voiceprint data and generates non-warning sound components through suppressing or shielding the sound feature point audio in the other sound components according to non-warning voiceprint information. Then the processor combines the warning sound component and the non-warning sound components to generate an output sound signal, allowing a speaker to output the output sound signal. Accordingly, the capturing device of the present disclosure provides instantly warning sound which is received (e.g. sound of car engine) from a remote range and outputs to allow the user in an early alert state, then reducing the probability of incident occurs thereby.

Abstract: The present disclosure relates generally to digital microphone and other sensor assemblies including a transducer, a delta-sigma analog-to-digital converter (ADC), a dynamic element matching (DELM) entity configured to compensate for nonlinearity resulting from variation among digital-to-analog conversion (DAC) elements of the ADC, and a control circuit configured to enable and disable the DELM based on a magnitude of a digital signal generated by the ADC.

Abstract: An air core dry type power reactor comprises upper and lower spider units and a coil including a plurality of cylindrically shaped winding layers including an outermost layer. The reactor further comprises a double wall sound shield including concentric a first roving cylinder and a second roving cylinder, the first roving cylinder positioned against the outermost layer but detached from the coil by a first airgap between the outermost layer and the first roving cylinder to reduce a structure-borne transmission of an acoustic energy or attached by ductsticks to the coil. The second roving cylinder is placed at a distance from the first roving cylinder to form an acoustic cavity between two double walls of the first roving cylinder and the second roving cylinder. The double wall sound shield further including a plurality of sound absorbent panels to attenuate resonances of the acoustic cavity between the two double walls of the first roving cylinder and the second roving cylinder.

Abstract: A sound generating device includes a magnet and a center pole on a yoke, a bobbin around the center pole, a coil wound around the bobbin, a frame outside the yoke, a damper between the frame and the bobbin, and a spacer in the bobbin.

Abstract: A hearing aid device is provided. The hearing aid device comprises: an input unit configured to receive an acoustical input and transform it into an electrical input signal; a signal transforming unit coupled to the input unit and configured to process the electrical input signal to obtain an electrical output signal; a stimulation unit configured to generate a stimulation signal for acoustic coordinated reset neuromodulation therapy; an output unit configured to transform at least one of the electrical output signal and the stimulation signal into an acoustical output.

Abstract: A display apparatus includes a display panel configured to display an image and a sound generating device on a rear surface of the display panel. The sound generating device is configured to vibrate the display panel to generate sound. The sound generating device includes a first structure and a first passivation layer on one side of the first structure, at least a portion of the first passivation layer having a non-flat shape.

Abstract: The disclosed high-efficiency motor may include the following: at least two magnets, a rigid structure arranged between the at least two magnets, where the rigid structure has traces configured to act as a moveable coil, and at least two couplings that respectively link the magnets to the rigid structure in a flexible manner. An electrical input signal applied to the moveable coil may cause motive force to be applied the rigid structure according to the input signal, so that the rigid structure moves orthogonally relative to the magnets as driven by the input signal. In this manner, the high-efficiency motor may be incorporated into a system that may reproduce a full-range audio signal. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: A piezoelectric microelectromechanical systems (MEMS) transducer that can operate as a microphone (e.g., contact microphone) or a speaker is presented herein. The piezoelectric MEMS transducer includes a substrate, a proof mass and folded displacement sensing structures. Each folded displacement sensing structure comprises a continuous beam, a first piezoelectric stress sensor coupled to a first portion of the continuous beam, and a second piezoelectric stress sensor coupled to a second portion of the continuous beam. The first portion of the continuous beam is coupled to a respective portion of the proof mass, and the second portion of the continuous beam is coupled to a respective portion of the substrate. The first and second portions of the continuous beam come together at an acute angle. The first and second piezoelectric stress sensors output stress information responsive to a stress induced in the continuous beam by displacement of the proof mass.

Abstract: A signal processing system and method for delivering spatialized sound by optimizing sound waveforms from a sparse array of speakers to the ears of a user. The system can provide listening areas within a room or space, to provide spatialization sounds to create a 3D audio effect. In a binaural mode, a binary speaker array provides targeted beams aimed towards a user's ears.

Abstract: There is provided a noise reduction headset having multi-microphone and a noise reduction method. One embodiment of the headset includes a headband and headset bodies respectively connected to both ends of the headband, wherein the headset further includes a microprocessor and at least three microphones disposed on an outer surface of the headset body; the microprocessor is configured to select the microphone closest to a target sound source as a main microphone according to a comparison of sound signals picked up by respective microphones, select the microphone farthest from the main microphone as an auxiliary microphone according to a preset relative position of respective microphones, and execute a noise reduction algorithm by using a first sound signal picked up by the main microphone and a second sound signal picked up by the auxiliary microphone as inputs of the noise reduction algorithm so as to realize noise reduction.

Abstract: A Bluetooth headset applicable to different head shapes is provided, which comprises: a flexible belt body (1) looped around the head, and two headset bodies (2); wherein an interior of each headset body (2) comprises a base (23) with a circuit board or a battery therein, a sound output part (21) with a loudspeaker therein, and the sound output part (21) and the base (23) are connected by a position adjustment rod (22), and wherein two bases (23) of the headset body are respectively fixed to the flexible belt body (1). The Bluetooth headset has the characteristics of not compressing the ears and ear canals and falling off during exercise, and being applicable to users of different head shapes.

Abstract: Provided is a headphone device including a housing, an audio input unit that is arranged to be separated from the housing and collects audio to generate an audio signal, a holding unit that abuts on a cavum concha or an inner wall of an ear canal of a user and holds the audio input unit in a space closer to an eardrum side than a tragus, in a state of being worn by the user, a wired connection unit that connects the housing and the audio input unit in a wired manner, a signal processing unit that generates a noise cancellation signal for an external sound based on the audio signal generated by the audio input unit, and generates an output signal based on the generated noise cancellation signal, and an audio output unit that outputs audio based on the output signal.