Abstract: A processing chip for processing audio signals using at least one deep neural network in a hearing device includes a first compute unit having a hardware architecture adapted for processing one or more convolutional neural network layers of the at least one deep neural network, a second compute unit having a hardware architecture adapted for processing one or more recurrent neural network layers of the at least one deep neural network, a shared memory unit for storing data to be processed in respective layers of the at least one deep neural network, the shared memory unit comprising a memory controller configured for running on a memory controller clock frequency that is higher than a compute unit clock frequency of both the first compute unit and the second compute unit, and a data bus system for providing access to the shared memory unit.

Abstract: A processing chip for processing audio signals using at least one deep neural network (DNN) in a hearing device comprises a first compute unit having a hardware architecture adapted for processing one or more convolutional neural network layers of the at least one DNN, a second compute unit having hardware architecture adapted for processing one or more recurring neural network layers of the at least DNN, a control unit for directing the first and second compute units when to compute a respective layer of the at least one DNN, a shared memory unit of storing data to be processed in respective layers of the at least one DNN, and a data bus system for providing access to the shared memory unit for each of the first and the second compute unit.

Abstract: A processing chip for processing audio signals using at least one deep neural network (DNN) in a hearing device comprises a first compute unit having a hardware architecture adapted for processing one or more convolutional neural network layers of the at least one DNN, a second compute unit having hardware architecture adapted for processing one or more recurring neural network layers of the at least DNN, a control unit for directing the first and second compute units when to compute a respective layer of the at least one DNN, a shared memory unit of storing data to be processed in respective layers of the at least one DNN, and a data bus system for providing access to the shared memory unit for each of the first and the second compute unit.

Abstract: Hearing devices capable of performing a self-test as well as a method for automatically testing a hearing device. A hearing device includes a measurement bridge circuit connected to the receiver of the hearing device in parallel with the audio amplifier of the hearing device. A method for self-testing a hearing device includes the steps of i) disabling the audio amplifier connected to the receiver, in particular by putting the amplifier in a high impedance state, ii) applying with a measurement bridge circuit a direct current (DC) and/or an alternating current (AC) to the receiver, iii) measuring with the measurement bridge circuit (5) a voltage at the receiver, and iv) detecting a presence or absence of a fault condition based on the measured voltage.

Abstract: An illustrative hearing device includes a battery having a battery voltage, a microphone for transducing sound into an input signal, a processor configured to be operated with an operating voltage and to generate an output signal from the input signal, a speaker for transducing the output signal to an acoustic signal, and a valve. An acoustic effect of the valve is adjustable by applying a valve voltage, wherein the adjustment is controllable by the processor. The hearing device comprises a voltage regulator configured to generate the operating voltage from the battery voltage, wherein the operating voltage is less than the battery voltage and wherein the valve voltage is greater than the operating voltage.

Abstract: An exemplary hearing device includes an interface assembly comprising a plurality of contacts and a processor coupled to the contacts. The processor is configured to configure, while a receiver assembly is connected to the interface assembly, the contacts to serve as output contacts; output, based on the configuring, audio signals to the receiver assembly by way of the contacts; detect that a device has been connected to the interface assembly in place of the receiver assembly; measure, in response to the detecting, a direct current resistance (DCR) of the device; determine, based on the DCR, that the device is a programming device; reconfigure, in response to determining that the device is the programming device, the contacts to serve as input contacts; and receive, based on the reconfiguring of the contacts to serve as input contacts, programming instructions from the programming device by way of the contacts.

Abstract: An exemplary hearing device includes an interface assembly comprising a plurality of contacts and a processor coupled to the contacts. The processor is configured to configure, while a receiver assembly is connected to the interface assembly, the contacts to serve as output contacts; output, based on the configuring, audio signals to the receiver assembly by way of the contacts; detect that a device has been connected to the interface assembly in place of the receiver assembly; measure, in response to the detecting, a direct current resistance (DCR) of the device; determine, based on the DCR, that the device is a programming device; reconfigure, in response to determining that the device is the programming device, the contacts to serve as input contacts; and receive, based on the reconfiguring of the contacts to serve as input contacts, programming instructions from the programming device by way of the contacts.

Abstract: Hearing devices capable of performing a self-test as well as a method for automatically testing a hearing device. A hearing device includes a measurement bridge circuit connected to the receiver of the hearing device in parallel with the audio amplifier of the hearing device. A method for self-testing a hearing device includes the steps of i) disabling the audio amplifier connected to the receiver, in particular by putting the amplifier in a high impedance state, ii) applying with a measurement bridge circuit a direct current (DC) and/or an alternating current (AC) to the receiver, iii) measuring with the measurement bridge circuit (5) a voltage at the receiver, and iv) detecting a presence or absence of a fault condition based on the measured voltage.

Abstract: A method of monitoring state of health of a rechargeable battery (11) comprised within a hearing device (1) is provided, the rechargeable battery (11) being adapted to provide energy for electronic components (2, 8) of the hearing device (1), the method comprising the steps of: dividing a usage time of the hearing device (1) into time slots, determining a number of full equivalent charges applied to the rechargeable battery (11) in each of the time slots, and determining a performance level of the rechargeable battery (11) in dependence on the number of full equivalent charges per time slot. Furthermore, a hearing device adapted to perform the method and an arrangement with the hearing device are provided.

Abstract: A method of monitoring state of health of a rechargeable battery (11) comprised within a hearing device (1) is provided, the rechargeable battery (11) being adapted to provide energy for electronic components (2, 8) of the hearing device (1), the method comprising the steps of: dividing a usage time of the hearing device (1) into time slots, determining a number of full equivalent charges applied to the rechargeable battery (11) in each of the time slots, and determining a performance level of the rechargeable battery (11) in dependence on the number of full equivalent charges per time slot. Furthermore, a hearing device adapted to perform the method and an arrangement with the hearing device are provided.

Abstract: The present invention proposes a method for operating a hearing device 1 which prevents battery leakage, especially in the case when the hearing device 1 is powered by a mercury-free battery 2. The method comprises monitoring a supply voltage of at least one of a plurality of electronic units 7, 8, 9 of the hearing device 1, initiating a low battery leakage shutdown state when a low supply voltage condition is identified based on the monitoring, wherein the initiating a low battery leakage shutdown state includes activating at least one power gate 10 to disconnect at least one of the plurality of electronic units 7, 8, 9 from the power supply when entering the low battery leakage shutdown state, and discharging a buffer capacitor 4 provided for stabilizing the battery voltage. Moreover, a hearing device 1 optimized for being powered by a mercury-free battery 2 is provided.

Abstract: A hearing device with a unit for estimating the current consumed by the receiver of the hearing device. The hearing device includes a signal input unit for converting an input signal picked up by the signal input unit into a digital audio signal, a signal processing unit for processing the digital audio signal, a digital-to-analog converter for converting a processed audio signal from the signal processing unit, a power amplifier for amplifying a converted audio signal from the digital-to-analog converter, a receiver for generating sound according to an amplified audio signal from the power amplifier, and a battery for powering the hearing device. A receiver current estimation unit has a filter for filtering a receiver current indicative signal derived from the processed audio signal, the filter having a frequency response dependent on an impedance of the receiver. A method is provided for estimating a receiver current for a hearing device.

Abstract: The present invention proposes a method for operating a hearing device which prevents battery leakage, especially in the case when the hearing device 1 is powered by a mercury-free battery 2. The method comprises monitoring a supply voltage of at least one of a plurality of electronic units 7, 8, 9 of the hearing device 1, initiating a low battery leakage shutdown state when a low supply voltage condition is identified based on the monitoring, wherein the initiating a low battery leakage shutdown state includes activating at least one power gate 10 to disconnect at least one of the plurality of electronic units 7, 8, 9 from the power supply when entering the low battery leakage shutdown state, and discharging a buffer capacitor 4 provided for stabilising the battery voltage. Moreover, a hearing device 1 optimised for being powered by a mercury-free battery 2 is provided.

Abstract: A hearing device with a unit for estimating the current consumed by the receiver of the hearing device. The hearing device includes a signal input unit for converting an input signal picked up by the signal input unit into a digital audio signal, a signal processing unit for processing the digital audio signal, a digital-to-analog converter for converting a processed audio signal from the signal processing unit, a power amplifier for amplifying a converted audio signal from the digital-to-analog converter, a receiver for generating sound according to an amplified audio signal from the power amplifier, and a battery for powering the hearing device. A receiver current estimation unit has a filter for filtering a receiver current indicative signal derived from the processed audio signal, the filter having a frequency response dependent on an impedance of the receiver. A method is provided for estimating a receiver current for a hearing device.

Abstract: A method for testing a wireless communication system is disclosed comprising a fitting device (1; IF, PC) and at least one of a hearing device (HD1, HD2) and an accessory device (ACC) to the hearing device (HD1, HD2). The fitting device (1; IF, PC) comprising means for communicating with at least one of the hearing device (HD1, HD2) and the accessory device (ACC). The method comprises the steps of: testing at least one of the following elements: a transceiver of the hearing device (HD1, HD2); a transceiver of the accessory device (ACC); a transceiver of the fitting device (1; IF, PC); quality of a link between two transceivers; comparing results of the testing with predefined values, presenting a result of the comparison to the user of the fitting device (1; IF, PC) by indicating failure or non-failure for the corresponding element tested, wherein the step of testing is controlled by the fitting device (1; IF, PC).

Abstract: A method for testing a wireless communication system is disclosed comprising a fitting device (1; IF, PC) and at least one of a hearing device (HD1, HD2) and an accessory device (ACC) to the hearing device (HD1, HD2). The fitting device (1; IF, PC) comprising means for communicating with at least one of the hearing device (HD1, HD2) and the accessory device (ACC). The method comprises the steps of: testing at least one of the following elements: a transceiver of the hearing device (HD1, HD2); a transceiver of the accessory device (ACC); a transceiver of the fitting device (1; IF, PC); quality of a link between two transceivers; comparing results of the testing with predefined values, presenting a result of the comparison to the user of the fitting device (1; IF, PC) by indicating failure or non-failure for the corresponding element tested, wherein the step of testing is controlled by the fitting device (1; IF, PC).