The disclosure relates to a hearing device comprising a housing accommodating an acoustic transducer inside an inner volume of the housing, the acoustic transducer having an oscillator element configured to generate sound waves, the housing accommodating the acoustic transducer inside an inner volume of the housing. The hearing device further comprises a sound outlet configured to release sound waves from the inner volume into an ear canal. The hearing device may also comprise a microphone configured to be acoustically coupled to the ear canal, and an active feedback control circuit configured to provide an active feedback control signal to modify the sound waves generated by the acoustic transducer.

The invention provides an active noise reduction system which may be self-contained within a headset of the system, wherein circuitry within the system applies an active noise reduction profile to a signal to the speakers in the headset, to provide active noise reduction to the user of the headset, the system being arranged to receive power both from a power supply external to the system and from a battery of the system and to automatically modify the active noise reduction applied, in dependence on whether or not the system is connected to an external power supply.

Embodiments include a method of reducing echo in an audio system comprising a microphone, an acoustic echo canceller (AEC), and at least one processor, the method comprising receiving, by the at least one processor, an audio signal detected by the microphone; deploying, by the at least one processor, a microphone lobe towards a first location associated with the detected audio signal; obtaining, by the at least one processor, one or more AEC parameters for the first location, the one or more AEC parameters being stored in a memory in communication with the at least one processor; initializing, by the at least one processor, the AEC using the one or more AEC parameters; and generating, by the at least one processor, an echo-cancelled output signal using the initialized AEC and based on the detected audio signal and a reference signal provided to the AEC.

A noise cancelling system for a vehicle includes a microphone, at least one first sensor configured to collect first data related to an element that generates a noise sound, at least one second sensor configured to collect second data related to an element that changes a secondary path of the noise sound, a controller configured to select a secondary path model corresponding to the second data from among a plurality of pre-stored secondary path models, input the first data to a secondary path filter corresponding to the selected secondary path model, and generate an anti-noise signal based on output data of the secondary path filter and error data received from the microphone, and a speaker configured to output an anti-noise sound based on the anti-noise signal.

Examples of system for ambient aversive sound detection, identification and management are described. The system comprises an earpiece device with a microphone configured to capture ambient sound around a user and sample it into small segments of the ambient sound, a speaker and a regulator to regulate the ambient sound segment transmitted to the speaker. The system further comprises a processing unit that identifies aversive ambient sound signals in the captured sound segment and provide recommendation action to manage the aversive sound signal by removing, supressing, attenuating or masking the aversive signals.

An assembly actively controls the rolling noise for a motor vehicle. The assembly includes a path control device that includes another sensor fastened on the steering knuckle, such as an accelerometer. The path control device is capable of transmitting, to the anti-noise device, measurements obtained by the other sensor. The anti-noise device is capable of generating an anti-noise signal depending on the acceleration measurements obtained and controlling its transmission via the loudspeaker.

A system and method for providing a headset system including a microphone including a microphone transducer configured to receive vocal sounds from a user of the headset system and to generate a voice audio signal representing the vocal sounds; a first earcup including a first housing, wherein the first housing further includes a voice canceling circuit, an inner speaker, and a first outer speaker; the voice canceling circuit configured to receive the voice audio signal and configured to generate a first voice canceling signal to cancel the voice of the user; and the first outer speaker including a first speaker transducer configured to generate and output sounds representing the first voice cancelling signal to cancel the vocal sounds of the user.

A vehicle includes an interface device, an in-vehicle control unit, a functional unit, and a processing circuitry. The interface device receives a spoken command to identify an in-cabin vehicle zone of two or more in-cabin vehicle zones of the vehicle, and receives background audio data concurrently with a portion of the spoken command. The in-cabin vehicle control unit separates the background audio data from the spoken command, and selects which in-cabin vehicle zone of the two or more in-cabin vehicle zones is identified by the spoken command. The functional unit controls a function within the vehicle. The processing circuitry stores, to a command buffer, data processed from the received spoken command, and controls, based on the data processed from the received spoken command, the functional unit using audio input received from the selected in-cabin vehicle zone.

Provided is a speaker unit that constitutes a sound system that reduces noise in an open space, including: a housing; a driver; and a microphone, in which the microphone and the driver are provided in the housing such that sensitivity of the microphone to a signal output from the driver is lower.

A vehicle for blocking a virtual engine sound that is introduced into the vehicle includes: a speed sensor configured to detect a travelling speed of the vehicle; a virtual engine sound system (VESS) including a first speaker and a second speaker; and a controller configured to control the VESS based on the travelling speed, wherein the controller is configured to: upon the vehicle being in a stopped state, control the VESS such that the first speaker outputs a virtual engine sound and the second speaker outputs a sound having an inverse phase of the virtual engine sound.