Abstract

A method and a system for intelligent dynamic speech enhancement for an audio source, comprising performing speech detection and intelligent enhancement gain control on a multi-channel audio source input to determine speech enhancement gain, and further comprising applying the speech enhancement gain in dynamic loudness balancing performed on the multi-channel audio source input, wherein the intelligent enhancement gain control comprises setting the speech enhancement gain based on a signal power strength ratio of a signal of a center channel to a sum of signals of other channels, and setting the speech enhancement gain based on a system volume level

IPC Classes  ?

• G10L 21/0364 - Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility
• G10L 21/034 - Automatic adjustment
• G10L 25/21 - Speech or voice analysis techniques not restricted to a single one of groups characterised by the type of extracted parameters the extracted parameters being power information
• G10L 25/78 - Detection of presence or absence of voice signals
• H04S 3/00 - Systems employing more than two channels, e.g. quadraphonic

Abstract

An omnidirectional loudspeaker includes a lower horn member having a generally convex, upwardly-facing outer wall, an upper horn member spaced from the lower horn member and having a generally convex, downwardly-facing outer wall, and at least one compression driver connected to one of the lower or upper horn members along a central axis. The at least one compression driver includes a magnet assembly, a diaphragm operably connected to the magnet assembly, a phasing plug adjacent the diaphragm, and a compression chamber defined between the diaphragm and the phasing plug. The lower and upper horn members are coupled via the at least one compression driver in spaced relationship along the central axis to define a passageway for radiating sound waves generated by the compression driver in a generally horizontal 360° radiation pattern.

IPC Classes  ?

• H04R 1/34 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
• H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers

Abstract

The present disclosure provides a method and apparatus for a system including multiple audio devices. A method for a system including multiple audio devices is provided, which is performed by a first audio device of the multiple audio devices and comprises: receiving an instruction indicating the first audio device to be set as a primary device of the system and a second audio device to be set as a secondary device of the system; transmitting a setting instruction to the second audio device as indicated in the received instruction to set the second audio device as the secondary device of the system; receiving a full channel audio; and transmitting the full channel audio to other audio devices in the system; wherein the primary device of the system is set to play a designated one of left and right channels as indicated in the received instruction and the secondary device of the system is set to play the other one of the left and right channels.

IPC Classes  ?

• H04R 3/12 - Circuits for transducers for distributing signals to two or more loudspeakers
• H04R 5/04 - Circuit arrangements
• H04R 27/00 - Public address systems
• H04S 7/00 - Indicating arrangementsControl arrangements, e.g. balance control
• H04W 4/80 - Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• H04M 1/72412 - User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories using two-way short-range wireless interfaces
• H04M 1/72442 - User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality for playing music files

Abstract

The disclosure describes a method adapted for a driver monitoring system and the driver monitoring system. The method may comprise obtaining sequences of frames, wherein each sequence of frames consists of N arrays of color scalars corresponding to N face zones of a driver. For each array, the method may determine whether bad color scalars exist in the array; and perform interpolation adaptively to the array based on locations of bad color scalars in the array, in response to the determination of bad color scalars existing in the array.

IPC Classes  ?

• A61B 5/18 - Devices for psychotechnicsTesting reaction times for vehicle drivers
• A61B 5/00 - Measuring for diagnostic purposes Identification of persons
• A61B 5/024 - Measuring pulse rate or heart rate
• A61B 5/0255 - Recording instruments specially adapted therefor
• G06T 7/00 - Image analysis
• G06T 7/90 - Determination of colour characteristics

Abstract

A system for audio limiting in a call downlink algorithm during a call is provided, the audio limiter enables automatic amplification of the low pitch and suppression of the high pitch on the earphone side and prevents distortion of the high pitch, so that the audio limiter can ensure that an earphone wearer can clearly understand the voice content and maintain a consistent volume level regardless of whether the sound of a far-end speaker is small or large.

IPC Classes  ?

• G10L 21/0364 - Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility
• G10L 21/034 - Automatic adjustment
• G10L 25/84 - Detection of presence or absence of voice signals for discriminating voice from noise
• H04M 1/60 - Substation equipment, e.g. for use by subscribers including speech amplifiers
• H04M 9/08 - Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic

Abstract

A speaker assembly and an electric vehicle is provided. The speaker assembly comprises: a speaker unit having an axis and features a diaphragm assembly; a horn structure having a base portion and a periphery portion, wherein the base portion of the horn structure is arranged on a first axial side of the speaker unit, facing or opposing the diaphragm assembly of the speaker unit, and the periphery portion of the horn structure, extending from the base portion of the horn structure, is positioned radially outward of the speaker unit and extending toward a second axial side of the speaker unit opposite to the first axial side. The electric vehicle comprises a speaker assembly.

IPC Classes  ?

• H04R 1/30 - Combinations of transducers with horns, e.g. with mechanical matching means
• H04R 1/02 - CasingsCabinetsMountings therein
• H04R 1/34 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
• H04R 9/06 - Loudspeakers

Abstract

A bracket assembly for mounting a loudspeaker to a support surface includes a generally L-shaped wall bracket including an adjustment plate including a slot and a mounting flange mountable to the support surface. The bracket assembly includes a generally U-shaped speaker bracket including a central plate mountable to the loudspeaker, a top arm, and a bottom arm. The bracket assembly includes a generally U-shaped intermediate bracket having a joining plate including a first aperture, an upper flange, and a lower flange. The intermediate bracket is coupled to the speaker bracket and rotatable about an axis defined between the top arm and the bottom arm for providing pan adjustability of the loudspeaker. The wall bracket is connectable to the intermediate bracket via a first fastener received through the slot and the first aperture, a position of the first fastener movable along the slot for providing tilt adjustability of the loudspeaker.

IPC Classes  ?

• F16M 13/02 - Other supports for positioning apparatus or articlesMeans for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle

Abstract

A sound and vibration sensor having a sealed cavity defined between a microphone element and structure panel and an area below the microphone element wherein the microphone element senses a change in acoustic pressure inside the sealed cavity caused by sound waves striking the structure panel.

IPC Classes  ?

• H04R 1/08 - MouthpiecesAttachments therefor
• H04R 1/22 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only

Abstract

An electronics unit including a plurality of electronics positioned therein that generate electromagnetic interference (EMI) and/or thermal energy. The electronics unit may include a housing defining a plurality of openings positioned on a first side thereof, and a plurality of clips attached to the housing. A corresponding clip of the plurality of clips is positioned in a corresponding opening of the plurality of opening for attachment to a vehicle. The plurality of clips enables thermal energy to be transmitted from the plurality of electronics to a first portion of the vehicle, and mitigates the EMI, when the electronics unit is attached to the vehicle.

IPC Classes  ?

• H05K 9/00 - Screening of apparatus or components against electric or magnetic fields
• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

Abstract

A sound and vibration sensing device comprising a housing, a printed circuit board assembly (PCBA) including a sensor element supported inside the housing. A flexible and non-porous structural membrane is arranged to seal the housing at one end creating a first closed air volume below the sensor element and a second closed air volume above the sensor element wherein the sensor element measures changes in air pressure in the first closed air volume caused by vibration of the structural membrane induced by external acoustic pressure and structural vibration to output a combined sound and vibration signal.

IPC Classes  ?

• G01H 11/08 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices
• B81B 3/00 - Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes
• G01H 3/00 - Measuring vibrations by using a detector in a fluid

Abstract

Embodiments for on-demand processing of audiovisual data are provided. In one example, a method for on-demand audiovisual (AV) data processing for playback in a vehicle includes pre-processing, with a local digital signal processor of the vehicle, an AV data file, the pre-processing including forming a plurality of digital AV signals from the AV data file, sending at least a portion of the plurality of digital AV signals to a cloud-based server configured to apply one or more processing features to the at least the portion of the plurality of digital AV signals, receiving processed versions of the at least the portion of the plurality of digital AV signals from the cloud-based server, and outputting the processed versions of the at least the portion of the plurality of digital AV signals to one or more AV sinks of the vehicle.

IPC Classes  ?

• H04N 21/2343 - Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
• H04N 21/414 - Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance

Abstract

In at least one embodiment, an apparatus for generating audio in a listening room of a vehicle is provided. The apparatus includes a memory device and at least one audio controller. The at least one audio controller is programmed to receive an incoming audio signal including primary audio data from an audio source for playback and to receive a first control signal indicative of a desired venue to playback the primary audio data. The at least one audio controller is further programmed to adjust reverberation of at least the incoming audio signal to playback the primary audio data in the desired venue of the vehicle and to receive a second control signal indicative of a desired nature sound to be played back in the listening room. The at least one audio controller is further programmed to playback the desired nature sound along with the primary audio data in the desired venue.

IPC Classes  ?

• H04S 7/00 - Indicating arrangementsControl arrangements, e.g. balance control
• H04R 5/04 - Circuit arrangements
• A61M 21/02 - Other devices or methods to cause a change in the state of consciousnessDevices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis for inducing sleep or relaxation, e.g. by direct nerve stimulation, hypnosis, analgesia
• G10L 21/0208 - Noise filtering
• H04R 27/00 - Public address systems

Abstract

A method for performing positional calibration for a multi-channel audio system includes capturing, using a plurality of directional microphones within a first audio output device, a test audio object emitted by a second audio output device. The method further includes determining, for each of the plurality of directional microphones, a respective room impulse response (RIR) associated with the test audio object captured by the directional microphone. Additionally, the method includes determining a position of the second audio output device relative to the first audio output device based on the RIRs and assigning a respective channel in the multi-channel audio system to each of the first audio output device and the second audio output device based on the computed position. The method also includes emitting audio from the first audio output device based on the respective channel assigned to the first audio output device.

IPC Classes  ?

• H04S 7/00 - Indicating arrangementsControl arrangements, e.g. balance control
• H04R 3/00 - Circuits for transducers

Abstract

A system and corresponding method provided may enable the users to connect their headset to different audio sources while controlling their settings of the headsets directly on their app devices without being interrupted in the audio.

IPC Classes  ?

• H04R 1/10 - EarpiecesAttachments therefor

Abstract

Constructing a mechanical design of a wireless microphone comprising an outer housing having an outer opening, inner housing having an inner opening, ECM device, rubber cover, waterproof mesh, and metal mesh. The ECM device with rubber cover is positioned within the inner opening of the inner housing. The waterproof mesh and metal mesh are positioned within the outer opening of the outer housing. A top air cavity comprises an empty space between the top surface of the ECM device and the outer opening of the outer housing. Due to protection of the ECM device from water, debris, and wind provided by the waterproof mesh and the metal mesh, the top air cavity can be formed to be shallower relative to a conventional wireless microphone. The shallow top air cavity provides better frequency response performance than a conventional deep top air cavity for the audio sound captured by the ECM device.

IPC Classes  ?

• H04R 1/02 - CasingsCabinetsMountings therein
• H04R 1/08 - MouthpiecesAttachments therefor
• H04R 1/22 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
• H04R 19/04 - Microphones
• H04R 31/00 - Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor

Abstract

The present disclosure provides a music visualization method and a music visualization device. The music visualization method comprises acquiring a current frame signal of a target audio signal, and determining current frame parameter information based on the current frame signal; determining a target representation mode of the current frame signal based on the current frame parameter information; generating a visual representation of the current frame signal based on the target representation mode.

IPC Classes  ?

• G10H 1/36 - Accompaniment arrangements
• G10H 1/00 - Details of electrophonic musical instruments

Abstract

On the one hand, a music visualization method for light shows is provided. The method uses artificial intelligence neural network machine learning, which defines the judgment standards for multiple music modes by training. Therefore, any song can be identified as consisting of one or more music modes through a music mode detection neural network. On the other hand, a music visualization apparatus for light shows is provided. The apparatus can select different light show patterns according to different music modes by means of real-time artificial intelligence music mode detection/beat detection results, and light components arranged on the apparatus are combined with intelligent processing to achieve cool and dazzling sound and light effects. The music visualization apparatus can generate light show effects that match the intensity, severity, emotional style, etc. of the music to create an immersive and artistically appealing audio-visual effect.

IPC Classes  ?

• H05B 47/105 - Controlling the light source in response to determined parameters
• H05B 47/155 - Coordinated control of two or more light sources

Abstract

The disclosure relates to a method and system for improving the auditory experience of the wearer's own voice by optimizing the speaker output of PSAPs or hearing aids. The method may comprise determining, based on a bone conduction signal received by a bone conduction sensor, whether a user's own voice exists or not; determining, based on an in-air microphone signal received by an in-air microphone, whether an environmental sound exists or not, in response to determining that the user's own voice exists; and performing, based on the bone conduction signal, the in-air microphone signal and transfer functions, a first adjustment operation to the speaker outputs, in response to determining that no environmental sound exists. The method may further comprise performing a second adjustment operation to the speaker output in response to determining that the environmental sound exists.

IPC Classes  ?

• H04R 1/10 - EarpiecesAttachments therefor
• H04R 25/00 - Deaf-aid sets

Abstract

Quick connector (100) including a bracket (110); a base (120) configured to be fixed to an article to be supported, wherein, the bracket comprises a locking head (114) having a first shape with a first dimension in a first direction and a second dimension in a second direction, the first dimension is different from the first dimension, and the first direction and the second direction are coplanar and orthogonal to each other, wherein the base includes an outer cover (122) defining a locking space for receiving the locking head and including an opening (123) having a shape corresponding to the locking head, where the base is also provided with a biasing device (130) which biases the locking head in a direction opposite to the insertion direction when the locking head is inserted into the opening, and wherein, the locking head can be inserted through the opening and rotated by 90 degrees to switch between an insertion position and a locking position.

IPC Classes  ?

• F16M 11/04 - Means for attachment of apparatusMeans allowing adjustment of the apparatus relatively to the stand
• F16M 13/02 - Other supports for positioning apparatus or articlesMeans for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle

Abstract

Various embodiments disclose a computer-implemented method comprising determining a target location in an environment, determining a set of sub-band impulse responses for a first frequency sub-band, each in the set of sub-band impulse responses being associated with a location proximate to the target location, selecting a first pair of sub-band impulse responses for the first frequency sub-band among pairs within the set of sub-band impulse responses, computing a first coherence value indicating a coherence level between sub-band impulse responses in the first pair, determining that the first coherence value is below a coherence threshold, in response, combining the sub-band impulse responses using a non-linear interpolation technique to generate an estimated impulse response for the first frequency sub-band for the target location, generating, based on the estimated impulse response, a filter for a speaker, filtering an audio signal, and causing the speaker to output the filtered audio signal.

IPC Classes  ?

• H04S 7/00 - Indicating arrangementsControl arrangements, e.g. balance control
• H04R 3/04 - Circuits for transducers for correcting frequency response

Abstract

Described herein are methods and systems for a vehicle system which provide inbuilt noise cancellation in the vehicle and automatic detection of an auxiliary seat (e.g., an infant car seat) which may be positioned in the vehicle. In one or more embodiments, a method for controlling the noise cancelling system includes determining a presence of an auxiliary seat in a zone of a vehicle and, responsive to the presence of the auxiliary seat, activating a noise cancellation device to adjust a noise level in the vehicle zone.

IPC Classes  ?

• G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effectsMasking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
• B60Q 9/00 - Arrangement or adaptation of signal devices not provided for in one of main groups

Abstract

A method includes the identification of a landmark associated with an operator of a vehicle, the determination of a location associated with the operator based on the identification of the landmark, and the automatic adjustment of a position of one or more speakers disposed within a headrest of the vehicle in response to the determination of the location.

IPC Classes  ?

• H04S 7/00 - Indicating arrangementsControl arrangements, e.g. balance control

Abstract

The present disclosure provides an earphone charging box and an earphone assembly. The earphone charging box is configured to accommodate at least one earphone component and charge the earphone component when the earphone component is accommodated in the earphone charging box, and wherein a microphone system is integrated on the earphone charging box.

IPC Classes  ?

• H04R 1/10 - EarpiecesAttachments therefor
• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Abstract

A speaker box and an electronic device are provided. The speaker box comprises: a box housing defining an interior chamber; a plurality of openings formed in the box housing; at least one active driver, each situated within one of the openings; at least one passive radiator, each situated within one of the openings; and at least one reinforcement structure positioned within the chamber, with each reinforcement structure being associated with one passive radiator, each reinforcement structure being located behind its respective passive radiator, and extending from the box housing proximate to the opening in which the respective passive radiator is situated, and spanning across the respective passive radiator. The electronic device comprises a speaker box.

IPC Classes  ?

• H04R 1/02 - CasingsCabinetsMountings therein
• H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means

Abstract

The present disclosure provides method and apparatus for indicating status of a voice-related system. A method for indicating status of a voice-related system is provided, performed at a dedicated first processing unit and including: in response to an actuation of a button in the voice-related system, changing current mute status information; receiving a first display instruction from a second processing unit, wherein the first display instruction is associated with a processing status of a voice event; and providing a second display instruction to a display unit in the voice-related system, based on the first display instruction and the current mute status information, wherein in case that the current mute status information indicates mute status of a microphone in the voice-related system, the second display instruction is associated with the current mute status independently of the first display instruction, and in case that the current mute status information indicates unmute status of the microphone, the second display instruction is associated with the first play instruction.

IPC Classes  ?

• G06F 3/16 - Sound inputSound output

Abstract

In various embodiments, a computer-implemented method comprises emitting a reference audio signal using one or more speakers of an audio processing device located in an acoustic environment, receiving, by each microphone in a microphone pair of the audio processing device, a response of the acoustic environment to the reference audio signal, determining an impulse response of the acoustic environment based on the reference audio signal and the received response of the acoustic environment, determining, based on the impulse response, a plurality of candidate wall distance estimates and a plurality of confidence scores, and determining based on the plurality of candidate wall distance estimates and confidence scores, including candidate wall distance estimates and confidence scores from one or more other audio processing devices, a set of wall distance estimates, each wall distance estimate in the set of wall distance estimates being associated with a different wall in a plurality of walls.

IPC Classes  ?

• G01S 15/89 - Sonar systems specially adapted for specific applications for mapping or imaging
• G01S 7/54 - Details of systems according to groups , , of systems according to group with receivers spaced apart
• G01S 15/32 - Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated

Abstract

In various embodiments, a method for estimating a room layout includes receiving candidate wall distance estimates for walls in an acoustic environment and confidence scores; receiving device location data for devices; determining, based on the device location data, a location of each wall relative to each audio processing device; generating a room layout matrix that includes the candidate wall distance estimates, wherein each row of the room layout matrix is associated with a respective device and each column is associated with a respective wall and each of the candidate wall distance estimates is associated with the respective walls based on the confidence scores; determining, based on a highest confidence score in each column of the room layout matrix and the location data, a set of wall distance estimates from an ordinal device; and determining, based on the set of wall distance estimates, room layout estimates of the acoustic environment.

IPC Classes  ?

• G01S 15/08 - Systems for measuring distance only
• H04R 1/32 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only

Abstract

Embodiments of a diagnostic tool for an active noise cancelling system are presented. The diagnostic tool may generate an output from the active noise cancelling system and capture input to the active noise cancelling system that results from the output of the active noise cancelling system. The diagnostic tool may generate visual output to aid in evaluation of active noise cancelling systems.

IPC Classes  ?

• G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effectsMasking sound by electro-acoustically regenerating the original acoustic waves in anti-phase

Abstract

A system and method for a web-based portal for certification of an application software (App). A draft App is created and submitted, by an App developer, to the web-based portal where a mediate administrator reviews, approves, or rejects the draft App based on a set of targets set by an App provider. The mediate administrator communicates rejection of the draft App to the developer. The mediate administrator communicates approval of the draft App to the developer and to one or more providers. The one or more providers perform their own review of the App and may modify the approved App with further target attributes. An approved App is published by the developer. An approved and/or modified approved App may be offered to a user by way of an in-vehicle infotainment system.

IPC Classes  ?

• G06Q 30/018 - Certifying business or products

Abstract

The disclosure relates to a vibration isolator, which comprises a housing, wherein the housing comprises a top wall, a bottom wall, an inner peripheral wall and an outer peripheral wall, and the top wall, the bottom wall, the inner peripheral wall and the outer peripheral wall define a hollow cavity; A plurality of venting holes formed on at least one of the top wall, the bottom wall, the inner peripheral wall and the outer peripheral wall and communicating the cavity with the outside. Through the vibration isolator, the vibration of the supported member can be effectively damped or attenuated, and a good vibration reduction effect can be achieved.

IPC Classes  ?

• F16F 1/377 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction characterised by having a particular shape having holes or openings

Abstract

The current disclosure provides systems and methods for allowing passengers of a vehicle to interact with a surrounding environment in educational and entertaining ways, using an augmented reality (AR) touchscreen window. The passenger may select an element of the surrounding environment by touching a location of the element on the AR window. An image of the element may be captured and displayed in a portion of the AR window, along with information about the element retrieved from the Internet. The passenger can select the image using the touchscreen of the AR window to view an Internet browser with additional information about the selected element. Additionally, the passenger can edit the information and/or add further annotations, attach additional images, audio and/or video clips, etc. to generate a mixed-media content that can be shared or stored in a cloud-based storage to be reviewed at a later time.

IPC Classes  ?

• G06V 20/56 - Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
• G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
• G06T 3/60 - Rotation of whole images or parts thereof
• G06T 7/12 - Edge-based segmentation
• G06T 19/00 - Manipulating 3D models or images for computer graphics
• G09G 5/377 - Details of the operation on graphic patterns for mixing or overlaying two or more graphic patterns

Abstract

A system and method for generating a stimulus signal as a solution for an adaptive secondary path component of an active noise cancellation (ANC) system having at least one audio signal source to provide an audio signal in a cabin of the vehicle, a shaped noise generator provides a shaped-noise signal in the cabin of the vehicle, at least one controller programmed to activate the shaped noise generator and add the shaped noise signal to the audio signal to generate a stimulus signal, and at least one loudspeaker to project the stimulus signal within the cabin of the vehicle for the ANC system to generate an anti-noise signal.

IPC Classes  ?

• G10K 11/175 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effectsMasking sound
• G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effectsMasking sound by electro-acoustically regenerating the original acoustic waves in anti-phase

Abstract

In at least one embodiment, an active noise cancellation (ANC) system is provided. The system includes at least one audio signal source, at least one loudspeaker, at least one microphone, and at least one controller. The at least one controller is programmed to receive a first error signal and a second error signal and to provide an estimated impulse response based at least on the first error signal and the second error signal. The at least one controller is programmed to select a first pre-stored impulse response from a plurality of pre-stored impulse responses based on the estimated impulse response to filter one or more reference signals at an adaptive filter to generate the anti-noise signal and to select a first plurality of pre-stored tuning parameters from a plurality of pre-stored sets of the tuning parameters based on the first pre-stored impulse response.

IPC Classes  ?

• G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effectsMasking sound by electro-acoustically regenerating the original acoustic waves in anti-phase

Abstract

In at least one embodiment, an apparatus is provided. The apparatus includes a measurement circuit, a trigger determination circuit, and a latch circuit. The measurement circuit is configured to receive an input signal from a transmitting source and to provide an averaged input signal based on the input signal. The trigger determination circuit is configured to receive the averaged input signal and to compare the averaged input signal to a predetermined threshold. The trigger determination circuit is further configured to provide a first output indicative of the averaged input signal exceeding the predetermined threshold. The latch circuit is configured to receive the first output and to trigger a latch condition to prevent the transmitting source from transmitting the input signal in response to the first output.

IPC Classes  ?

• G01J 1/44 - Electric circuits
• H03K 3/037 - Bistable circuits

Abstract

Headphones include first and second earcups each including an interior portion and an exterior portion. A storage compartment is disposed on the exterior portion of at least one of the first and second earcups and includes a first housing assembly having a plurality of inner magnets and including a cavity formed therein, and a second housing assembly connected to the first housing assembly for limited movement with respect thereto and having a plurality of outer magnets. The storage compartment has a closed configuration with the second housing assembly overlying the first housing assembly such that the cavity is inaccessible, and an open configuration with the second housing assembly moved with respect to the first housing assembly while remaining connected thereto such that the cavity is accessible. The storage compartment is stabilized in the closed configuration and the open configuration by attraction between the plurality of inner magnets and outer magnets.

IPC Classes  ?

• H04R 1/10 - EarpiecesAttachments therefor

Abstract

Systems are provided for a loudspeaker. In one example, the loudspeaker includes a plurality of horns arranged at unique angles to increase a coverage of the loudspeaker. The plurality of horns may each include a contoured surface extending from an entrance to a mouth.

IPC Classes  ?

• H04R 1/30 - Combinations of transducers with horns, e.g. with mechanical matching means
• H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers

Abstract

Examples are disclosed for systems and methods for monitoring and filtering data transmitted to a vehicle connected to a wireless network. In one embodiment, a method for an edge node of a wireless network comprises routing traffic of the wireless network to a vehicle connected to the wireless network through the edge node; examining the traffic for potentially malicious content at the edge node; transmitting data packets of the traffic without potentially malicious content to the vehicle; and not transmitting data packets of the traffic with potentially malicious content to the vehicle.

IPC Classes  ?

• H04L 9/40 - Network security protocols
• H04L 67/12 - Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks

Abstract

A control knob comprises an encoder assembly configured to convert rotary and axial input movement into electronic signals, and a knob assembly attached to the encoder assembly and configured to be operated by a user, wherein the encoder assembly comprises a shaft encoder having a shaft that is configured to be rotated around a rotation axis and to be moved axially along the rotation axis, the knob assembly comprises an outer knob element configured to be operated by a user, the knob assembly further comprises a bush defining a cylindrical cavity inside the outer knob element, wherein the bush has an opening towards a first side of the outer knob element facing towards the encoder assembly, the knob assembly further comprises a driver element extending into the bush from a second side opposite the first side.

IPC Classes  ?

• G05G 1/10 - Details, e.g. of discs, knobs, wheels or handles
• G05G 1/02 - Controlling members for hand-actuation by linear movement, e.g. push buttons

Abstract

The disclosure provides a system for music visualization and a loudspeaker system including the system for music visualization. The system may comprises: a passive radiator configured to be movable in a direction of excursion while music is being played; a plurality of lenses operably attached to the passive radiator and configured to move together with the passive radiator; and a plurality of light sources disposed relative to the plurality of lenses so that the light emitted from the plurality of light sources passes through the plurality of lenses and is projected on an environment surface to form at least one projected area.

IPC Classes  ?

• H04R 1/02 - CasingsCabinetsMountings therein

Abstract

Embodiments are disclosed for display configurations for providing an augmented reality heads-up display. In one or more examples, a heads-up display device includes at least one display and the heads-up display updates sizes and positions of virtual objects multiple times for each image that is captured via a camera. The virtual objects may be updated based on a trajectory of an object in the real-world.

IPC Classes  ?

• G06T 19/00 - Manipulating 3D models or images for computer graphics
• G02B 27/01 - Head-up displays
• G06T 19/20 - Editing of 3D images, e.g. changing shapes or colours, aligning objects or positioning parts

Abstract

An audio system for measuring a delay is provided. The audio system includes an audio controller, an amplifier, a first digital to analog converter, and a measurement controller. The audio controller is programmed to transmit an audio input signal in a digital domain. The amplifier is programmed to process the audio input signal and to convert the processed audio input signal into a first processed audio signal in an analog domain. The amplifier is further programmed to amplify the first processed audio signal to provide an amplified audio output signal in the analog domain and to output the amplified audio output signal to drive one or more loudspeakers. The first digital to analog converter is programmed to convert the processed audio input signal into a second processed signal in the analog domain. The measurement controller is further programmed to determine a delay for the amplifier.

IPC Classes  ?

• H03F 3/183 - Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
• H04R 5/04 - Circuit arrangements

Abstract

A computer-implemented method for generating crosstalk cancellation (CTC) filters for a reverberant acoustic environment having multiple audio zones, the method comprising determining, based on a CTC simulation model of an acoustic environment, a first set of frequency responses for respective positions proximate to one or more speakers located in the acoustic environment, and a second set of frequency responses for respective listening positions in the acoustic environment, generating, based on the first set of frequency responses and the second set of frequency responses, an acoustic environment transfer function matrix for the acoustic environment, and generating, based on the acoustic environment transfer function matrix, a set of CTC filters for a set of speakers in the acoustic environment.

IPC Classes  ?

• H04S 7/00 - Indicating arrangementsControl arrangements, e.g. balance control

Abstract

This disclosure provides a method of automatic volume control for calibration track playback in a multi-channel speaker system and provides a multi-channel speaker system. The multi-channel speaker system may include a plurality of speakers each having at least one built-in microphone. The method may comprise obtaining microphone input signals from built-in microphones in the plurality of speakers; estimating energy values for the microphone input signals; selecting interesting energy values from the energy values; obtaining an average energy value of the selected energy values; and calculating a calibrated volume for the automatic volume control based on the average energy value.

IPC Classes  ?

• H04S 7/00 - Indicating arrangementsControl arrangements, e.g. balance control
• H03G 3/32 - Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level

Abstract

A vehicle speaker mount for a speaker includes a central bracket and a plurality of elongated portions extending radially outward from the central bracket. each of the elongated portions includes a respective engagement tab at a distal end of the elongated portion with each engagement tab is configured to be releasably connectable with a base of the speaker. Furthermore, the central bracket defines at least one aperture for receiving hardware to connect the mount to a vehicle surface. The vehicle speaker mount may include a threaded ring member and a base ring for securing the vehicle surface therebetween, or a plurality of flanges extending from a base ring for providing additional mounting surfaces.

IPC Classes  ?

• B60R 11/02 - Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the likeArrangement of controls thereof
• H04R 1/02 - CasingsCabinetsMountings therein

Abstract

A speaker and a speaker box are provided. The speaker comprises: a magnetic assembly defining a magnetic gap; a frame connected to the magnetic assembly and formed with a joint surface; a cone assembly affixed to the frame at the joint surface; and a voice coil connected to the cone assembly, with a section of the voice coil suspended within the magnetic gap, wherein the joint surface includes a curved portion, the curved portion being in a curved surface and spanning at least 50%of the circumference of the cone assembly. The speaker box comprises: a box body having a curved outer surface; and a speaker, wherein the speaker is mounted in the box body, with the curved portion of the joint surface being adjacent to and matching the curved outer surface of the box body.

IPC Classes  ?

• H04R 7/18 - Mounting or tensioning of diaphragms or cones at the periphery
• H04R 9/06 - Loudspeakers
• H04R 9/02 - Transducers of moving-coil, moving-strip, or moving-wire type Details
• H04R 7/12 - Non-planar diaphragms or cones

Abstract

Disclosed embodiments include techniques for determining spatial impulse response via acoustic scrambling. These techniques include a computer-implemented method for generating a frequency sweep signal, the method comprising generating a frequency sweep signal having a monotonically increasing frequency, partitioning the frequency sweep signal into N input segments, each of the N input segments representing a different frequency range, generating an encoding key having a sequence of N non-consecutive numbers, wherein each number in the sequence appears once, generating an output signal by selecting each of the N input segments in an order based on the sequence of N non-consecutive numbers in the encoding key, and causing a speaker to produce audio tones in an audio space based on the output signal.

IPC Classes  ?

• H04S 7/00 - Indicating arrangementsControl arrangements, e.g. balance control

Abstract

A system includes an interface having a first orientation. The first orientation defines a geometric plane and the interface has a substantially planar distribution over the geometric plane. The interface is configured to receive light. The light is representative of an image. The system also includes a reflector. The reflector has a principal plane. The principal plane has a second orientation different from the first orientation. The principal plane defines an angle of incidence based on the light and an angle of reflection based on the light.

IPC Classes  ?

• G02B 27/01 - Head-up displays

Abstract

A computer implemented method for determining a stress index of a route, comprising: determining, based on a cartographic representation, at least one route from a first point to a second point; dividing, by a stress index determination system, the at least one route into one or more links and/or intersections; determining, by the stress index determination system, the stress for the at least one or more links and/or intersections; combining, by the stress index determination system, the stress of the one or more links and/or intersections to obtain an overall stress index of the one or more routes.

IPC Classes  ?

• G01C 21/34 - Route searchingRoute guidance
• G01C 21/36 - Input/output arrangements for on-board computers

Abstract

Systems and methods are provided for managing power states of electronic control units (ECUs) of a vehicle. A method may include receiving a command at the vehicle in a language for establishing parts of state machines, and identifying the command as being for the configuration of state machine transitions for power states of one or more ECUs of the vehicle, based on a value of a command-type field of the command. For commands identified as being for the configuration of state machine transitions, the method may further include configuring a transition of a state machine based on a value in a start-state field of the command, a value in an end-state field of the command, and: one or more values in a trigger-condition field of the command, zero or more values in a guard-condition field of the command, and/or zero or more values in an action field of the command.

IPC Classes  ?

• G06F 9/448 - Execution paradigms, e.g. implementations of programming paradigms
• G06F 1/3287 - Power saving characterised by the action undertaken by switching off individual functional units in the computer system
• H04W 4/40 - Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]

Abstract

A lighting panel and a lighting panel assembly is disclosed. The lighting panel has an axis and comprises: a light guide plate having a first surface and an opposite second surface, and at least one light-intake port provided between the first surface and the second surface of the light guide plate; at least one light source positioned adjacent to the at least one light-intake port; a first light diffuser plate and a second light diffuser plate positioned on a side of the light guide plate and parallel to the light guide plate, the first light diffuser plate having a first surface and an opposite second surface and being positioned with its first surface adjacent to the second surface of the light guide plate, and the second light diffuser plate being spaced from the first light diffuser plate in an axial direction. The lighting panel assembly comprises a plurality of lighting panels that are assembled together.

IPC Classes  ?

• F21V 8/00 - Use of light guides, e.g. fibre optic devices, in lighting devices or systems

Abstract

In at least one embodiment, an amplifier (180) is provided. The amplifier (180) includes an input stage, a plurality of output stages, and a combining stage (106). The input stage includes a first input transistor and a second input transistor to receive an input signal. Each output stage includes at least one output resistor. The plurality of output stages is configured to operate in a one of a push mode to output a positive cycle of the input signal to a load and a pull mode to absorb a negative cycle of the input signal from the load. The combining stage (106) includes a plurality of combining resistors, each combining resistor forming a star connection with the output resistors for each output stage to receive a first voltage therefrom and to generate an output voltage based on the first voltage to produce a low distortion output signal at the load.

IPC Classes  ?

• H03F 1/32 - Modifications of amplifiers to reduce non-linear distortion
• H03F 1/30 - Modifications of amplifiers to reduce influence of variations of temperature or supply voltage
• H03F 3/30 - Single-ended push-pull amplifiersPhase-splitters therefor

Abstract

Embodiments of the present disclosure set forth a method or reducing noise in an audio environment. The method includes acquiring, via one or more sensors, a plurality of audio signals associated with sound in an audio environment; determining that a first audio signal in the plurality of audio signals matches a first reference signal in a set of reference signals; generating, based on the first audio signal, a first directional audio signal wherein, when the first directional audio signal is outputted by a loudspeaker, the loudspeaker produces a first acoustic field that attenuates the first audio signal at a position of a user; determining that a second audio signal in the plurality of audio signals does not match at least one reference signal in the set of reference signals; and storing data associated with the second audio signal as an additional reference signal in the set of reference signals.

IPC Classes  ?

• G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effectsMasking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
• G10L 21/0216 - Noise filtering characterised by the method used for estimating noise

Abstract

Various embodiments disclose a computer-implemented method comprising generating, based on a signal flow, an audio synthesis configuration including at least one audio object to synthesize an audio signal, retrieving a synthesis characteristic profile acquired from an external device, the synthesis characteristic profile indicating one or more respective characteristic values for one or more synthesis characteristics, identifying one or more synthesis parameter settings based on the one or more respective characteristic values, modifying the audio synthesis configuration based on the identified one or more synthesis parameter settings to generate a modified audio synthesis configuration, synthesizing an audio signal based on the modified audio synthesis configuration, and outputting, using an audio output device, an audio reproduction of the audio signal.

IPC Classes  ?

• G06F 3/16 - Sound inputSound output
• G11B 27/031 - Electronic editing of digitised analogue information signals, e.g. audio or video signals
• G11B 27/038 - Cross-faders therefor
• G11B 27/34 - Indicating arrangements
• H04H 60/04 - Studio equipmentInterconnection of studios
• G10H 1/00 - Details of electrophonic musical instruments
• G10H 1/46 - Volume control
• G10H 7/00 - Instruments in which the tones are synthesised from a data store, e.g. computer organs
• H04S 7/00 - Indicating arrangementsControl arrangements, e.g. balance control

Abstract

Various embodiments disclose a computer-implemented method comprising generating, based on a first audio synthesis configuration, an arrangement including at least one audio object to synthesize an audio signal, receiving sensor data acquired from a set of sensors, modifying the arrangement based on the sensor data to generate a modified arrangement, activating the modified arrangement to generate a synthesized audio signal, and outputting, using an audio output device, an audio reproduction of the synthesized audio signal.

IPC Classes  ?

• G10H 1/00 - Details of electrophonic musical instruments
• G10H 5/00 - Instruments in which the tones are generated by means of electronic generators

Abstract

A computer-implemented method for processing audio. The method includes obtaining a binaural room impulse response (BRIR) of an acoustic space, receiving an input audio signal, separating the input audio signal into low-frequency components and high-frequency components, and dividing the BRIR of the acoustic space into a first portion that occurs before a first time and a second portion that occurs after the first time. The method further includes generating a first component of an output audio signal based on the high-frequency components of the input audio signal and the first portion of the BRIR, generating a second component of the output audio signal based on the high-frequency components of the input audio signal and the second portion of the BRIR, generating a third component of the output audio signal based on the low-frequency components of the input audio signal and the BRIR, and outputting the output audio signal.

IPC Classes  ?

• H04S 7/00 - Indicating arrangementsControl arrangements, e.g. balance control
• H04S 3/00 - Systems employing more than two channels, e.g. quadraphonic

Abstract

The disclosure relates to a method and system of virtualized spatial audio. The method may use a motion sensor to track a listener's movement, obtain location information associated with the listener's movement, and produce virtual sound adaptively based on the location information associated with the listener's movement. The location information may include distance information and direction information regarding the listener relative to the motion sensor.

IPC Classes  ?

• H04S 7/00 - Indicating arrangementsControl arrangements, e.g. balance control

Abstract

A method for reproducing a constant field speaker is provided, which includes the steps of reproducing low-frequency audio with left and right channel inputs below a first crossover point through a woofer. This method also includes the steps of reproducing high-frequency audio above the first crossover point in all directions with constant frequency responses through a tweeter unit. The tweeter unit can be configured by using a CSF algorithm with DSP above the first crossover point and below a second crossover point. And the unit can be configured by using the CSF algorithm with acoustic processing combined with the DSP, to reproduce the constant sound field. A speaker apparatus for reproducing the constant sound field using this method is also provided.

IPC Classes  ?

• H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
• H04S 1/00 - Two-channel systems
• H04R 1/30 - Combinations of transducers with horns, e.g. with mechanical matching means
• H04R 3/12 - Circuits for transducers for distributing signals to two or more loudspeakers
• H04R 1/34 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
• H04R 5/02 - Spatial or constructional arrangements of loudspeakers

Goods & Services

(1) Audio speakers; earphones; headphones; loudspeakers; microphones (2) Sound transmitting apparatus; sound recording apparatus; downloadable computer software for manipulating digital audio information; downloadable computer software for controlling, programming and communicating with audio speakers, headsets

Abstract

In various embodiments, a computer-implemented method includes determining a size of a display area of a display panel on which one or more images are being displayed, determining a threshold current value based on the size, measuring a first current drawn by the display panel, determining whether the first current exceeds the threshold current value, and upon determining that the first current exceeds the threshold current value, causing a second current providing power to a light source associated with the display panel to be shut off.

IPC Classes  ?

• G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
• B60K 35/00 - Instruments specially adapted for vehiclesArrangement of instruments in or on vehicles
• B60K 35/23 - Head-up displays [HUD]
• B60K 35/81 - Arrangements for controlling instruments for controlling displays
• B60K 35/90 - Calibration of instruments, e.g. setting initial or reference parametersTesting of instruments, e.g. detecting malfunction
• G09G 3/34 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source

Abstract

Techniques for managing power consumption of an audio device include detecting that a power consumption of the audio device is above a target power consumption level; in response to detecting that the power consumption of the audio device is above the target power consumption level: ramping down a gain of the audio device; accumulating an amount of the power consumption of the audio device that is above the target power consumption level to generate an accumulated excess power consumption of the audio device; computing a gain profile to compensate for the accumulated excess power consumption; and controlling the gain of the audio device based on the gain profile.

IPC Classes  ?

• H03G 3/30 - Automatic control in amplifiers having semiconductor devices

Abstract

A method includes receiving a user input by a video display controller, determining a position of a perceived region based on the user input, determined a variance of at least one or more lines outside an eyebox of a user based on the position of the perceived region, calculating a corresponding position of a mirror based on the variance of the one or more lines being outside of the eyebox, and causing the perceived region to appear within the eyebox of the user based on the corresponding position of the mirror and the determined variance of the one or more lines.

IPC Classes  ?

• G02B 27/01 - Head-up displays

Abstract

A speaker assembly includes a basket including an opening having a rim and a flange extending downwardly from the rim, the flange including at least one rib extending circumferentially around an inner surface of the flange. A magnet includes at least one groove extending circumferentially around the magnet. The magnet is insert molded with the basket below the rim such that the at least one groove receives the at least one rib to mechanically couple the magnet to the basket.

IPC Classes  ?

• H04R 9/02 - Transducers of moving-coil, moving-strip, or moving-wire type Details

Abstract

A headphone assembly including headphones, a switch, at least one motion detector, and at least one processor is provided. The switch is configured to transmit a first signal indicative of a command to establish a relative orientation for the headphones. The at least one motion detector is configured to transmit a second signal indicative of movement of the headphones relative to a user's head. The at least one processor is programmed to receive a first signal to establish the relative orientation of the headphones and to receive the second signal that indicates that the headphones are moving relative to the user's head. The at least one processor is further programmed to determine that the headphones are in a stable state and to establish the relative orientation of the headphones while positioned on the user's head in response to at least determining that the headphones are in the stable state.

IPC Classes  ?

• H04S 7/00 - Indicating arrangementsControl arrangements, e.g. balance control
• H04R 1/10 - EarpiecesAttachments therefor
• H04R 5/033 - Headphones for stereophonic communication

Abstract

An audio system is provided. The audio system includes a plurality of loudspeakers and a mobile device. The plurality of loudspeakers is capable of being positioned in a listening environment and being arranged to transmit an audio signal in the listening environment. Each loudspeaker is programmed to determine angle information of the audio signal as received at the loudspeaker relative to other loudspeakers of the plurality of loudspeakers and to transmit a first signal indicative of the angle information. The mobile device is programmed to receive the first signal from each of the loudspeakers and to determine a location for each loudspeaker in the listening environment based at least on the angle information.

IPC Classes  ?

• H04S 7/00 - Indicating arrangementsControl arrangements, e.g. balance control
• H04R 5/02 - Spatial or constructional arrangements of loudspeakers
• H04R 5/027 - Spatial or constructional arrangements of microphones, e.g. in dummy heads
• H04R 5/04 - Circuit arrangements

Abstract

An audio system is provided that includes a loudspeaker, at least one microphone, and at least one controller. The loudspeaker transmits an audio signal into a listening environment defined by at least one wall in a room. The at least one microphone is positioned on the loudspeaker and is configured to capture a reverberated audio signal including a plurality of reverberations and a plurality of peaks. The reverberated audio signal is indicative of the audio signal being reflected from the at least one wall. The at least one controller is programmed to apply a confidence score to the plurality of peaks to obtain a maximum score which is indicative of a maximum peak of the audio signal that is reflected from the at least one wall and determine a distance between the loudspeaker and the wall based at least on the maximum score.

IPC Classes  ?

• H04S 7/00 - Indicating arrangementsControl arrangements, e.g. balance control
• H04R 5/04 - Circuit arrangements

Abstract

Methods and systems are provided for managing over-the-air (OTA) software updates between vehicles and a vehicle management system. In one example, an over-the-air (OTA) update system for a vehicle comprises a streaming service configured to request an OTA update from a second vehicle; a blockchain including a contract executing virtual machine (VM), the contract executing VM configured to execute, in response to receiving a response to the request from the second vehicle, a first smart contract stored on the blockchain including instructions that when executed, cause the contract executing VM to download the OTA update from the second vehicle, and install the OTA update at the vehicle. Installing the OTA update at the vehicle may include validating the OTA update against a plurality of other copies of the blockchain installed at other vehicles prior to installation.

IPC Classes  ?

• G06F 8/65 - Updates

Abstract

This disclosure provides a method and a system of automatic volume control for a speaker system. The method may comprise obtaining a microphone input signal including a plurality of frames; performing a filter processing on the microphone input signal to obtain the filtered microphone input signal; estimating an energy value for each frame of the filtered microphone input signal; constructing a first set of data consisting of estimated energy values of a predefined number of frames of the filtered microphone input signal; determining a gain coefficient based on the estimated energy values in the first set; and performing the volume control based on the gain coefficient.

IPC Classes  ?

• H03G 3/30 - Automatic control in amplifiers having semiconductor devices
• H03G 3/32 - Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level
• H03G 7/00 - Volume compression or expansion in amplifiers

Abstract

An audio system is provided that includes a first loudspeaker and a second loudspeaker. The first loudspeaker transmits an audio signal including audio data and a signature tone into a listening environment. The second loudspeaker includes at least one controller programmed to receive the audio signal including the audio data and the signature tone and to determine a direction of arrival (DOA) of the audio signal as received at the second loudspeaker based at least on the signature tone. The at least one controller is further programmed to perform a time frequency masking operation on the received audio signal prior to determining the DOA of the audio signal.

IPC Classes  ?

• H04R 29/00 - Monitoring arrangementsTesting arrangements
• G10L 21/0232 - Processing in the frequency domain
• H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
• H04R 3/00 - Circuits for transducers

Abstract

An earphone is disclosed. The earphone comprises: a housing containing a speaker therein; a cavity defined within the housing; an elongate opening provided in the housing, the elongate opening communicating the cavity with an atmosphere around the earphone; and a microphone provided in the housing, the microphone being exposed to or communicating with the cavity, and being configured to capture external sound through the cavity and the elongate opening.

IPC Classes  ?

• H04R 1/08 - MouthpiecesAttachments therefor
• H04R 1/10 - EarpiecesAttachments therefor

Abstract

A method and system for volume alignment across a set of speaker units is disclosed. The method comprises the steps of: obtaining a set of volume indexes, each of which is associated with one speaker unit in the set of speaker units and is measured in a pre-conducted measurement; deriving a gain factor based on the set of volume indexes; applying the gain factor to an audio signal to create a gained audio signal, the gained audio signal comprising a set of gained audio signals, each of which is intended to be played on one respective speaker unit.

IPC Classes  ?

• H04S 7/00 - Indicating arrangementsControl arrangements, e.g. balance control
• H04S 3/00 - Systems employing more than two channels, e.g. quadraphonic

Abstract

One embodiment sets forth a technique for managing an audio broadcast. The technique includes transmitting first access information for a first audio stream to one or more sink devices, wherein the first access information is used by the sink device(s) to play first audio content transmitted from a first source device and the first audio content is transmitted over the first audio stream. The technique also includes receiving a first request from a second source device to transmit second audio content to the sink device(s), wherein the first request comprises second access information for a second audio stream. The technique further includes transmitting the second access information to the sink device(s), wherein the second access information is used by the sink device(s) to play the second audio content transmitted from the second source device and the second audio content is transmitted over the second audio stream.

IPC Classes  ?

• G06F 3/16 - Sound inputSound output
• H04L 65/1083 - In-session procedures
• H04L 65/611 - Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for multicast or broadcast
• H04L 67/1095 - Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
• H04M 1/60 - Substation equipment, e.g. for use by subscribers including speech amplifiers
• H04M 1/72409 - User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
• H04R 3/14 - Cross-over networks
• H04W 4/10 - Push-to-talk [PTT] or push-on-call services
• H04W 4/80 - Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication

Abstract

The disclosure describes a method for a multi-channel speaker system including N speakers. The method may comprise obtaining N! permutations of channel sequence for the N speakers; determining, for each permutation, a voting score that represents the matching degree between the channel sequence indicated in a permutation and a correct channel assignment sequence of the N speakers; selecting the permutation with the highest voting score; and assigning input source channels to the N speakers in the order of the channel sequence indicated in the selected permutation.

IPC Classes  ?

• H04R 3/12 - Circuits for transducers for distributing signals to two or more loudspeakers
• H04R 5/02 - Spatial or constructional arrangements of loudspeakers
• H04R 5/027 - Spatial or constructional arrangements of microphones, e.g. in dummy heads
• H04R 5/04 - Circuit arrangements

Abstract

In at least one embodiment, an audio limiter system is provided. The system includes a first limiter block, a second limiter block, and a third limiter block. The first limiter block receives an incoming audio signal having a plurality of first frequencies and limits the incoming audio signal with the plurality of first frequencies based on at least a first gain threshold to generate at least a first high audio output signal. The second limiter block receives the incoming audio signal having a plurality of second frequencies and limits the incoming audio signal with the plurality of second frequencies based on at least a second gain threshold to generate at least a first low audio output signal. The third limiter block receives the first high audio output signal and/or the first low audio output signal and limits the first high audio output signal and/or the first low audio output signal.

IPC Classes  ?

• H03G 11/04 - Limiting level dependent on strength of signalLimiting level dependent on strength of carrier on which signal is modulated
• H04R 3/04 - Circuits for transducers for correcting frequency response

Abstract

A multi-channel spatial position calibration method using pleasant audio such as music or speech is provided, which is more acceptable and user-friendly for users. The method may calibrate the multi-channel spatial distribution through LMS-based RIR estimation and cross-correlation-based DOA estimation. A multi-channel sound system applicable for the method is also provided.

IPC Classes  ?

• H04S 7/00 - Indicating arrangementsControl arrangements, e.g. balance control
• H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers

Abstract

An audio link system and corresponding method are disclosed. The audio link system includes a plurality of speaker boxes. The plurality of speaker boxes are connected in series in a wired manner. Each speaker box includes: a first audio input interface configured to receive a first audio input from an audio source; a second audio input interface configured to receive a second audio input from an upstream speaker box; an audio output interface configured to provide an audio output to a downstream speaker box; a first switch and a second switch respectively configured to be capable of switching between a first connection state and a second connection state; and a controller configured to: determine a working mode of the speaker box; and control, based on the determined working mode, the first switch and the second switch to switch to corresponding connection states respectively.

IPC Classes  ?

• H04R 3/12 - Circuits for transducers for distributing signals to two or more loudspeakers
• G06F 3/16 - Sound inputSound output

Abstract

A method for processing multi-channel audio signals, a system for processing multi-channel audio signals and a stereo apparatus comprising such a system. The multi-channel audio processing method comprises: receiving multi-channel audio signals from an external audio source, the multi-channel audio signals comprises a pair of surround channel signals and a pair of top channel signals; applying a crosstalk cancellation process in consideration of a head-related transfer function to the pair of top channel signals, so as to produce a pair of processed top channel signals, the head-related transfer function is configured to provide an elevation angle; mixing the pair of processed top channel signals, respectively, with the pair of surround channel signals, so as to produce a pair of mixed surround channel signals; providing the pair of mixed surround channel signals, respectively, to a pair of surround speakers.

IPC Classes  ?

• H04S 5/00 - Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation

Abstract

Techniques for selecting an audio profile for an audio output device include clustering a plurality of candidate audio profiles into a plurality of clusters based on vector representations of each of the plurality of candidate audio profiles, selecting a first candidate audio profile that is representative of a first cluster of the plurality of clusters, presenting, to a user, an audio test pattern rendered based on the first candidate audio profile, and determining an audio profile for an audio output device based on a response of the user to the presented audio test pattern.

IPC Classes  ?

• H04S 7/00 - Indicating arrangementsControl arrangements, e.g. balance control

Abstract

Embodiments include a computer-implemented method for interacting with a user. The method comprises utilizing a processor associated with a virtual personal assistance system. The processor is configured to perform the steps of obtaining first sensor data from a first sensor included in a plurality of sensors. The first sensor data comprises audio speech input. The steps further comprise analyzing the audio speech input using a first deep learning model to generate an intended meaning, selecting second sensor data to obtain based on the intended meaning, obtaining the second sensor data from a second sensor included in the plurality of sensors, analyzing the second sensor data and the intended meaning to generate a prediction value, applying a second deep learning model to the prediction value to generate a text segment, and converting the text segment into a natural language audio output; and outputting the natural language audio output to the user.

IPC Classes  ?

• G10L 15/22 - Procedures used during a speech recognition process, e.g. man-machine dialog
• G10L 13/00 - Speech synthesisText to speech systems
• G10L 15/18 - Speech classification or search using natural language modelling
• G10L 15/26 - Speech to text systems
• G10L 15/30 - Distributed recognition, e.g. in client-server systems, for mobile phones or network applications