H04R2430/20

Adjustment of acoustic map and presented sound in artificial reality systems

A headset generates an acoustic map that is a visual representation of sound pressure of sound within a local area. The acoustic map is displayed as a virtual object that is overlaid onto visual content being presented by the headset. Sound is adjusted in accordance with a command. The acoustic map is updated based on the adjusted sound, and the adjusted sound is presented and the updated acoustic map is presented.

HEARING AID SYSTEM INTEGRABLE IN AN EYEGLASS FRAME
20230108217 · 2023-04-06 ·

The present disclosure is related to an eyeglass frame system comprising at least two microphones in wireless communication with adapted air buds. The hearing aid system is configured with a video camera in communication with a face contour detection process that together with an audio processing system is performing beam forming of respective microphones thereby improving reception of audio sound from the direction of identified face contours.

SETTING A PARAMETER VALUE

An apparatus, method and computer program product for receiving captured spatial audio information comprising at least one audio signal and at least one audio parameter for controlling the at least one audio signal, receiving an instruction to set an audio parameter to a first parameter value, setting, in response to determining that the first parameter value fulfils at least one criterion, the audio parameter to a second parameter value and changing the audio parameter from the second parameter value to the first parameter value.

Spatial Audio Filtering Within Spatial Audio Capture
20230106162 · 2023-04-06 ·

An apparatus including circuitry configured to: obtain two or more audio signals from respective two or more microphones; determine, in one or more frequency band of the two or more audio signals, a first sound source direction parameter and first sound source energy parameter based on processing of the two or more audio signals; determine, in the one or more frequency band of the two or more audio signals, a second sound source direction parameter and second sound source energy parameter based on processing of the two or more audio signals; obtain a region defining a direction and/or range for a filter; and generate the filter to be applied to the two or more audio signals, wherein filter gain/attenuation parameters are generated based on the region in relation to the first sound source direction parameter, the first sound source energy parameter, the second sound source direction parameter and the second sound source energy parameter.

RENDERING AUDIO OVER MULTIPLE SPEAKERS WITH MULTIPLE ACTIVATION CRITERIA

Methods for rendering audio for playback by two or more speakers are disclosed. The audio includes one or more audio signals, each with an associated intended perceived spatial position. Relative activation of the speakers may be a cost function of a model of perceived spatial position of the audio signals when played back over the speakers, a measure of proximity of the intended perceived spatial position of the audio signals to positions of the speakers, and one or more additional dynamically configurable functions. The dynamically configurable functions may be based on at least one or more properties of the audio signals, one or more properties of the set of speakers and/or one or more external inputs.

Lightweight full 360 audio source location detection with two microphones

A system is described herein. The system includes at least one hardware processor that is configured to identify a pre-determined acoustic barrier filter, wherein the acoustic barrier filter coincides with the physical acoustic barrier and receive an audio signal within a time window at the first microphone and the second microphone. The hardware processor is also configured to calculate a first measure of variability, a second measure of variability, a third measure of variability, and a fourth measure of variability. The hardware processor further concatenates the first measure of variability, the second measure of variability, the third measure of variability, and the fourth measure of variability to form a feature vector, and inputs the feature vector into a location classifier to obtain an audio source location.

Adaptive noise cancelling for conferencing communication systems

A communication system with a noise cancellation (NC) assembly providing adaptive or dynamic noise cancellation. The NC assembly includes a localizer module determining, during a communication session (active speaking or during idle times), a location of the active talker. The NC assembly includes a beam generator forming a beam in the determined direction of the active talker to enhance the active talker speech. Once the NC assembly has determined the position of the active talker, the NC assembly assigns a microphone of the microphone array or generated beam in that active direction to be the “active signal” source. The NC assembly assigns a second microphone or beam to be the noise source for NC purposes, and this source may be selected to be in acoustic shadow of the first microphone used as the active signal source or may be the farthest away in its position from the active talker's position.

Sound source distance estimation

An apparatus for generating at least one distance estimate to at least one sound source within a sound scene comprising the least one sound source, the apparatus configured to: receive at least two audio signals from a microphone array located within the sound scene; receive at least one further audio signal associated with the at least one sound source; determine at least one portion of the at least two audio signals from a microphone array corresponding to the at least one further audio signal associated with the at least one sound source; determine a distance estimate to the at least one sound source based on the at least one portion of the at least two audio signals from a microphone array corresponding to the at least one further audio signal associated with the at least one sound source.

Array microphone module and system

A microphone module comprises a housing, an audio bus, and a first plurality of microphones in communication with the audio bus. The microphone module further comprises a module processor in communication with the first plurality of microphones and the audio bus. The module processor is configured to detect the presence of an array processor in communication with the audio bus, detect the presence of a second microphone module in communication with the audio bus, and configure the audio bus to pass audio signals from both the first plurality of microphones and the second microphone module to the array processor.

MOUNTABLE SOUND CAPTURE AND REPRODUCTION DEVICE FOR DETERMINING ACOUSTIC SIGNAL ORIGIN

Sound capture and reproduction devices that can be mounted on hearing protective headsets, and are capable of using multiple microphones to determine the origins of one or more acoustic signals relative to the devices orientation, as well as methods of acquiring the origins of a combination of one or more acoustic signals from at least two microphones are described.