A howling detector is described that is configured to receive an input signal and to determine measure of the linearity of a logarithmic representation of the energy of the input signal. In some examples, this triggers gain adjustment (e.g. of a noise control unit) and, in some further examples, the amount of the gain adjustment may be based on an estimation of the maximum stable gain of a noise control unit.

The technology described in this document can be embodied in a method that includes receiving an input signal captured by one or more sensors associated with an active noise reduction (ANR) headphone, and determining one or more characteristics of a first portion of the input signal. Based on the one or more characteristics of the first portion of the input signal, a gain of a variable gain amplifier (VGA) disposed in an ANR signal flow path can be adjusted, and accordingly, a set of coefficients for a tunable digital filter disposed in the ANR signal flow path can be selected. The method further includes processing a second portion of the input signal in the ANR signal flow path using the adjusted gain and selected set of coefficients to generate a second output signal for the electroacoustic transducer of the ANR headphone.

A hearing aid system for individual identification of a hearing aid system may include a wearable camera, a microphone, and at least one processor. The processor may be programmed to receive a plurality of images captured by the wearable camera; receive audio signals representative of sounds captured by the microphone; and identify a first audio signal, from among the received audio signals, representative of a voice of a first individual. The processor may transcribe and store, in a memory, text corresponding to speech associated with the voice of the first individual and determine whether the first individual is a recognized individual. If the first individual is a recognized individual, the processor may associate an identifier of the first recognized individual with the stored text corresponding to the speech associated with the voice of the first individual.

A method for speech equalization, comprising the steps of receiving an input audio signal, processing said input audio signal in dependence on frequency and to providing an equalized electric audio signal according to an equalization function, wherein said equalization function comprises at least an actuator part configured to dynamically applying a compensation filter to the received input signal and dynamically applying a transparent filter to the received input signal, and further transmitting an output signal perceivable by a user as sound representative of said electric acoustic input signal or a processed version thereof.

A first input signal captured by one or more sensors associated with an ANR headphone is received. A frequency domain representation of the first input signal is computed for a set of discrete frequencies, based on which a set of parameters is generated for a digital filter disposed in an ANR signal flow path of the ANR headphone, the set of parameters being such that a loop gain of the ANR signal flow path substantially matches a target loop gain. Generating the set of parameters comprises: adjusting a response of the digital filter at frequencies (e.g., spanning between 200 Hz-5 kHz). A response of at least 3 second order sections of the digital filter is adjusted. A second input signal in the ANR signal flow path is processed using the generated set of parameters to generate an output signal for driving the electroacoustic transducer of the ANR headphone.

An ear-mountable listening device includes an array of microphones physically arranged into a ring pattern to capture sounds from an environment and output first audio signals that are representative of the sounds captured by the microphones. A speaker is arranged to emit audio into an ear in response to a second audio signal. Electronics are coupled to the array of microphones and the speaker and configured to capture the sounds with the array of microphones to generate the first audio signals and generate the second audio signal that drives the speaker based upon one or more of the first audio signals.

An apparatus includes signal processing circuitry configured to generate processed data signals in response at least in part to transducer signals from at least one acoustic transducer and filtering signals, and to transmit the processed data signals via at least one communication channel to an actuating assembly of an auditory prosthesis. The apparatus further includes circuitry configured to monitor one or more of the signal processing circuitry, the processed data signals, and the at least one communication channel, and to generate filtering control signals in response at least in part thereto. The apparatus further includes filtering circuitry configured to generate the filtering signals in response at least in part to the processed data signals and the filtering control signals.

An on-ear headphone includes an alignment structure extending into the user's concha to help the user to align the headset for optimal comfort and sound perception. The alignment minimizes sound leakage, optimizes audio playback, and improves active noise cancelation.

A headset system for tracking eye motion, reaction, facial features, and focus of a user. The system may include an inward-facing camera directed at the front of the user's face to capture image data associated with the eye movement, facial expressions, reaction, and focus of the user. The system may also include at least one additional outward-facing camera directed away from the user's face to capture image data of the viewable content of the user.

An assembly of at least one radiation detector, at least one radiation emitter and a housing configured to be positioned inside the ear canal of a person or animal, the detector(s) and emitter(s) being provided in or on the housing, the emitter(s) being configured to emit radiation away from the housing and the detector(s) being configured to receive radiation directed toward the housing. No overlap may be provided between the field of view of the radiation detector(s) and the emitter(s), such as by providing a blocking element.