Abstract: This invention presents audio device that generates low-frequency sound through a fixed carrier linkage, featuring a housing with a circuit board and an attached linear motor. Inside the housing, a fixed surface with a connection structure for hard surfaces is present. The linear motor vibrates perpendicular to this fixed surface, receiving low-frequency signals from the circuit board, generating vibrations transmitted to the hard surface through the connection structure, resulting in resonance vibrations and low-frequency sound in the air. By utilizing a linear motor for low-frequency signal generation, this innovation achieves a compact size with substantial power output. Furthermore, the fixed connection between the housing and hard surface enhances vibration transmission, yielding even greater power output. This technology has versatile applications, including MINI speakers, mobile gaming feedback, resonating speakers, and similar products.

Abstract: A sound wave signal processing apparatus may include: an extraction unit configured to extract, from a sound wave signal, a plurality of frequency signals indicating respective frequency components of a plurality of frequency bands including different set frequencies; a setting unit configured to set a set frequency of the extraction unit on the basis of a comparison result between output levels of the frequency signals of the different set frequencies extracted by the extraction unit; and a detection unit configured to detect a formant frequency band including a formant frequency in the sound wave signal on the basis of a comparison result group between the output levels of the frequency signals of the different set frequencies extracted by the extraction unit, a setting history of the set frequency of the extraction unit by the setting unit, and a frequency characteristic of the extraction unit.

Abstract: A separate active noise cancellation device is installed on an electronic device which includes a circuit board and a noise generating source. The separate active noise cancellation device includes an active noise cancellation controller, a microphone and a speaker, the active noise cancellation controller is installed on and electrically connected to the circuit board, the microphone and the active noise cancellation controller are separately installed, the microphone has a cable provided for electrically connecting the active noise cancellation controller, the microphone is arranged around the noise generating source, the speaker is electrically connected to the active noise cancellation controller and capable of issuing a noise cancelling sound to offset the noise generated by the noise generating source. In this way, the amount of noise may be accurately captured and reduced to overcome the annoying noise problem.

Abstract: Various aspects include portable speakers and methods of controlling such speakers. In a particular implementation, a portable loudspeaker includes: a controller configured to control an audio output according to at least two distinct equalization profiles and in at least two distinct physical orientations, where the controller is configured to switch between two of the distinct equalization profiles in response to detecting a change in physical orientation of the portable loudspeaker between two of the distinct physical orientations, where the switch between the two distinct equalization profiles is either: a) modified by a hysteresis factor, or b) smoothed according to a predefined pattern.

Abstract: The present disclosure discloses a sound device including a frame, a magnet system, a first vibration system and a second vibration system. The magnet system includes a first inner yoke, a main magnet, a side magnet, a first side yoke, and a connection portion. A first coil of the first vibration system is inserted in to a first magnetic gap. A first FPC of the first vibration system includes a first fixation portion, a first welding portion welded to the first coil, and a first elastic portion connecting the first fixation portion with the first welding portion; the first elastic portion is spaced apart from the first side yoke along a vibration direction; the first welding portion is fixed to a side of the first side yoke facing the first diaphragm. The sound device has better magnetic field performance and vibration performance.

Abstract: A method for adjusting the clarity of an audio output in a changing environment, including: receiving a content signal; applying a customized gain to the content signal; and outputting the content signal with the customized gain to at least one speaker for transduction to an acoustic signal, wherein the customized gain is applied on a per frequency bin basis such that frequencies of a lesser magnitude are enhanced with respect to frequencies of a greater magnitude and an intelligibility of the acoustic signal is set approximately at a desired level, wherein the customized gain is determined according to at least one of a gain applied to the content signal, a bandwidth of the content signal, and a content type encoded by the content signal.

Abstract: The present invention provides a speaker including a first frame, a second frame, a first vibration system, a second vibration system, and a magnetic circuit system. The first vibration system includes a first diaphragm and a pair of first voice coils. The second vibration system includes a second diaphragm and a pair of second voice coils. The pair of first voice coils is arranged spaced apart from each other in a first direction. The pair of second voice coils is arranged spaced apart from each other in a second direction. The first and second directions are perpendicular to a vibration direction of the first diaphragm. The first direction is perpendicular to the second direction. Winding planes of the first and second voice coils are parallel to the vibration direction. The speaker of the present invention has strong anti-swing ability and can save space in the height direction.

Abstract: Multiple virtual source locations may be defined for a volume within which audio objects can move. A set-up process for rendering audio data may involve receiving reproduction speaker location data and pre-computing gain values for each of the virtual sources according to the reproduction speaker location data and each virtual source location. The gain values may be stored and used during “run time,” during which audio reproduction data are rendered for the speakers of the reproduction environment. During run time, for each audio object, contributions from virtual source locations within an area or volume defined by the audio object position data and the audio object size data may be computed. A set of gain values for each output channel of the reproduction environment may be computed based, at least in part, on the computed contributions. Each output channel may correspond to at least one reproduction speaker of the reproduction environment.

Abstract: A method is disclosed which includes receiving an incoming time-varying signal as ambient signal, applying a signal cancellation filter to the incoming time-varying signal to thereby generate an attenuated version of the incoming time-varying signal, selectively choosing one or more selected classes of signals to be broadcasted while other signals are to be attenuated, continually applying the incoming time-varying signal to a classifier to identify presence of the one or more selected classes in the incoming time-varying signal, adding a snippet of a pre-recorded signal associated with each of the identified classes to thereby generate a string of signal snippets associated with the identified classes, and repeating in a loop, combining the attenuated version of the received time-varying signal with the repeated string of signal snippets and broadcasting the combination.

Abstract: Described herein is an audio device with a microphone which may adapt the audio output volume of a speaker by either increasing or decreasing output volume based on an audio input volume from a user and a distance from the user to the audio device. The audio device may also adapt its output volume to lower the audio output based on detecting one or more interruptions including occupancy and acoustic sounds.

Abstract: This application provides an earphone, which can resolve a problem that a strain sensing module in the earphone and for implementing function keys occupies a large space area, thereby implementing the function keys of the earphone through pressing in multiple directions and reducing an overall size of the earphone. The earphone includes a housing and a pressure-strain structure arranged in a cavity formed by the housing. Two end portions of the pressure-strain structure are both in stable contact with an inner wall of the housing. A strain sensor is arranged on the pressure-strain structure. In a case that the housing is squeezed, the pressure-strain structure generates strain, and the strain sensor is configured to sense the strain generated by the pressure-strain structure.

Abstract: The work machine includes a path leading into a housing from an opening. The path is provided to control an airflow generated by motion of a machine. The work machine includes a microphone. The microphone is configured to collect sound in the housing, including operating noise generated in the housing by the motion of the machine. The work machine further includes a structure that defines a receiving space for the microphone along the path through which the operating noise propagates outside the housing. The structure includes an open structure that connects the receiving space with the path and faces downstream in the path. The structure surrounds the receiving space upstream of the open structure in the path.

Abstract: An electronic device is provided. In order to process an ambient sound according to an audio scene, the electronic device receive an ambient sound, determine an audio scene based on the ambient sound, determine a target signal processing profile corresponding to the audio scene among one or more signal processing profile, and process the ambient sound according to the target signal processing profile.

Abstract: The audio playing method is provided by embodiments of the present disclosure, applied to on-board audio system (including multiple speaker modules arranged at different positions in a car cabin, the audio playing method includes: obtaining an audio signal to be played; decomposing the audio signal to obtain multiple audio source signals of different categories, where each of the multiple sound source signals includes multiple sub sound source signals of a same category; establishing a route between all sub sound source signals and the multiple speaker modules according to a preset distribution principle indicating rules for playing different sub sound source signals by different speaker modules; and playing each of the multiple sub sound source signals by a corresponding speaker module according to the route. The present disclosure provides more accurate and immersive car multi-channel surround sound playback, which can effectively improve overall acoustic experience of the on-board audio system.

Abstract: A method for analyzing environmental sounds to identify repeating noises due to power equipment for purposes of controlling noise pollution is disclosed. Ambient sounds are sampled with microphones and the resulting data analyzed by an edge computing device. The samples are compared to stored data with a convolutional neural network by the edge computing device which also performs pitch shifting and cycle shifting to reduce false negatives. Positive results are reported via LoRa and/or 4G to a cloud platform and/or backend server.

Abstract: A method of reducing signals associated with one or more classes of unwanted noise is disclosed which includes choosing one or more classes as noise to be cancelled while allowing the remainder of classes amongst a plurality of classes to pass through, dividing an incoming time-varying signal into a plurality of snippets having a single or a plurality of durations, transforming each snippet into an associated frequency spectrum, thus generating a plurality of spectra, for each spectrum of the plurality of spectra, identifying presence of the one or more classes chosen as noise, for each identified class of noise, multiplying a 180° phase-shifted version of a frequency signal associated with the identified class of noise by a frequency spectrum of the incoming signal, thereby generating an associated frequency-domain noise-cancelled spectrum, inverse transforming the frequency-domain noise-cancelled spectrum into a time-varying noise-cancelled signal, and outputting the time-varying noise-cancelled signal.

Abstract: The present invention relates to a wireless communication device for a neck microphone, comprising: a body 110, which has a communication terminal device and is placed on the rear part of the neck of a user; and a neck microphone 120, which is attachably/detachably provided on the body to come into close contact with the front part of the neck, and thus transmit voice sound through the vibration of the neck, wherein the center of gravity is at the back of the neck of the user because of the weight of the body. The present invention is manufactured in an integrated form of a neck microphone and a wireless communication terminal device, and thus enables communication while both hands are free even if fire is suppressed while the facepiece respirator is worn, or even if chemical protective clothing is worn.

Abstract: The present disclosure provides a sounding device. The sounding device includes a vibration system, a magnetic circuit system, a conductive element and a fixed element. The vibration system includes a diaphragm and a voice coil fixed to the diaphragm. The sounding device further includes a reinforcement element having a first reinforcement part fixed to the upper surface of the connection part or the lower surface of the connection part, a second reinforcement part fixed to the outer side surface of the voice coil, and a third reinforcement part fixed with the upper surface of the voice coil. Compared with the related art, the sounding device provided by the present disclosure has a simple structure and good reliability.

Abstract: An audio apparatus includes a network interface, a receiver, at least one storage, and at least one processor. The processor is configured to determine that the audio apparatus is in a state capable of communicating with the other audio apparatus via the network interface. The processor is also configured to receive audio data via the receiver transmitted from an external apparatus different from the other audio apparatus. The processor is also configured to output a sound based on the received audio data. The processor is also configured to transmit the sound emission control information stored in the at least one storage to the other audio apparatus. The sound emission control information includes one or more of a sound volume, and a frequency band.

Abstract: A hearing device includes a) a multitude of input transducers providing a corresponding multitude of electric input signals; and b) a processor for providing a processed signal in dependence of the electric input signals. The processor includes b1) a beamformer for providing a spatially filtered signal in dependence of electric input signals and beamformer filter coefficients determined in dependence of a fixed steering vector including as elements respective acoustic transfer functions from a target signal source, to each of said multitude of input transducers; and b2) a target adaptation module connected to the input transducers and to at least one beamformer, the target adaptation module being configured to provide compensation signals to compensate the electric input signals so that they match the fixed steering vector.