The present disclosure provides methods and systems for reducing noise induced in one or more components in a hearing aid. The present disclosure provides methods for reducing noise induced in telecoils.

Presented herein are techniques for time interleaving the sampling of input signals with the delivery of stimulation signals to a recipient of an implantable electrically-stimulating hearing prosthesis. The input signals, which are received via one or more input channels and sampled by a sound processing unit, are susceptible to electrical feedback from the stimulation signals. As such, in accordance with embodiments presented herein, the sampling of the input signals by the sound processing unit, and the delivery of the stimulation signals to the recipient, are synchronized with one another so as to avoid stimulation-evoked electrical feedback within the input signals.

A hearable has an audio amplifier circuit coupled to a speaker as a load. The amplifier circuit has current source drive, which attenuates electromagnetically coupled noise of the speaker. In other instances, the amplifier circuit has a first amplifier mode and a second amplifier mode, wherein in the first amplifier mode the amplifier circuit becomes configured to drive the speaker as a voltage source, and in the second amplifier mode the amplifier circuit becomes configured to drive the speaker as a current source. Control logic varies the amplifier circuit between i) the first amplifier mode for larger amplitudes of the audio signal, and ii) the second amplifier mode for smaller amplitudes of the audio signal. Other aspects are also described and claimed.

A processor comprises instructions to adjust a bias of an input signal in order to decrease a duty cycle of a pulse modulated optical signal. The bias can be increased, decreased, or maintained in response to one or more measured values of the signal. In many embodiments, a gain of the signal is adjusted with the bias in order to inhibit distortion. The bias can be adjusted slowly in order to inhibit audible noise, and the gain can be adjusted faster than the bias in order to inhibit clipping of the signal. In many embodiments, one or more of the bias or the gain is adjusted in response to a value of the signal traversing a threshold amount. The value may comprise a trough of the signal traversing the threshold.

Disclosed is a system, a hearing device and a method for encapsulating one or more electronic components on a substrate. The method comprises providing a dam on the substrate, the dam is provided around the one or more electronic components, the dam comprises a dam material comprising an electrically conducting material. The method comprises providing a liquid fill encapsulation material within the dam on the substrate, the fill encapsulation material encapsulates the one or more electronic components, the fill encapsulation material is configured to solidify, the solidified fill encapsulating material comprises a first surface exposed to surroundings. The method comprises applying a cover material on the first surface of the solidified fill encapsulation material, the cover material comprising an electrically conducting material, whereby the one or more electronic components are encapsulated and electromagnetically shielded.

Embodiments presented herein are generally directed to a protective sleeve for an external component of a hearing prosthesis.

The disclosure presents a method and a hearing device comprising a first portion adapted for being arranged behind an ear of a user for providing a signal, an output transducer for converting the signal to an acoustic output, a coupling element coupled to the first portion, and wherein the coupling element is adapted for transmitting at least the signal or the acoustic output. Furthermore, the hearing device comprises an antenna which includes an external antenna part and an internal antenna part, where the internal antenna part includes a first antenna element, a second antenna element where a first end of the second antenna element is arranged at one end of the first antenna element and is connected thereto, and where a second end of the second antenna element is connected to a ground plane, and a third antenna element which is spaced at a distance from the second antenna element and connected to the first antenna element, a feeding unit configured to supply a current to the antenna via the third antenna element, a wireless interface for receiving and/or sending data by means of the antenna, and wherein the coupling element comprises the external antenna part, and where the external antenna part is connected to the internal antenna part.

A hearing aid device having a telecoil and a power consuming element is disclosed. The hearing aid device further comprises an at least partial loop in the power supply line, which at least partial loop provides a magnetic signal that at least attenuates or cancels noise induced from the power draw of the power consuming component.

The disclosure presents a method and an amplifier system for minimizing variation in an acoustical signal caused by variation in gain of an amplifier, comprising a battery for providing a supply voltage to the amplifier, a digital signal processor for providing the acoustical signal to the amplifier, a controller unit receiving an enablement signal when the supply voltage is in an offset mode, and based on the enablement signal requesting a measured voltage during a time period, and a first analog-to-digital converter configured for measuring the supply voltage to the amplifier when receiving the request from the controller unit or the first analog-to-digital converter is configured for measuring the supply voltage to the amplifier continuously, and where variations in the measured voltage relates to variations in the supply voltage during the time period. Furthermore, the controller unit is configured to predict offset modes (i.e. changes) in the supply voltage based on the enablement signals and a fitting of the measured voltages, and wherein the controller unit is configured to generate a compensating signal based on the fitting and transmit the compensating signal to the digital signal processor, the digital signal processor is then configured to minimize variation in the acoustical signal at the output of the amplifier by compensating the variation in gain of the amplifier based on the compensating signal.

A sound generator including a housing having a first wall portion with a housing opening, a shielding element covering at least a portion of the first wall portion and having a shield opening, where the shielding element covers a portion of the first wall portion.