Oticon A/S Patente

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The invention relates to a signal processing method performed by a hearing device, for determining a tap on the housing of a hearing device, comprising: (a) obtaining at least one detected signal from at least one detector of the hearing device, wherein the at least one detector includes at least one microphone;(b) pre-processing at least one of the at least one detected signal for obtaining at least one pre-processed signal; (c) applying a band pass filter with a predetermined threshold for a maximum signal amplitude and with a predetermined duration to the at least one pre-processed signal; (d) counting how many times the at least one pre-processed signal exceeds and / or falls below the threshold for a maximum signal amplitude within the predetermined duration; and (e) determining if the at least one of the at least one detected signal corresponds to a true tap on the housing of the hearing device on the basis of the result of the counting. A correspondingly formed hearing device is also described.

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In wireless communication by means of modulated radio frequency signals, direct sampling of the RF signal is desired to allow more stable processing of the RF signal and to allow changing the characteristics of the wireless connection by reprogramming. However, the sampling rate in the analog-to-digital conversion must normally be at least twice the RF signal frequency in order to avoid frequency aliasing, and the digitiser (4) needs a high resolution in order to allow retrieval of weak signals in the presence of strong unwanted signals. These two requirements typically combine to cause unacceptably large power consumption. The present invention provides a receiver (1) and a method capable of direct sampling of modulated magnetic induction signals without the above mentioned disadvantages. This is achieved in that the receiving antenna circuit (2) is arranged in the reactive near-field of the modulated magnetic induction signal and forms a narrow band-pass filter. The output of the antenna circuit (2) is not subjected to any frequency translation prior to digitising, and the signal may nevertheless be digitised with low resolution, which radically reduces the power consumption of the receiving circuits. The reduction in power consumption is surprisingly of several orders of magnitude, which allows implementation of such receiving circuits in battery-driven devices such as hearing devices (15) without substantially affecting the battery life.

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Signal processing methods for predicting the intelligibility of speech, e.g., in the form of an index that correlate highly with the fraction of words that an average listener (amongst a group of listeners with similar hearing profiles) would be able to understand from some speech material are proposed. Specifically, solutions to the problem of predicting the intelligibility of speech signals, which are distorted, e.g., by noise or reverberation, and which might have been passed through some signal processing device, e.g., a hearing aid are described. In summary, the disclosure present solutions to the following problems: 1. Monaural, non-intrusive intelligibility prediction of noisy/processed speech signals 2. Binaural, non-intrusive intelligibility prediction of noisy/processed speech signals 3. Monaural and binaural intelligibility enhancement of noisy speech signals.

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A hearing device, e.g. a hearing aid, comprises a) at least one input transducer for converting sound in the environment of the hearing device to respective at least one acoustically received electric input signal or signals representing said sound; b) a wireless receiver for receiving an audio signal from a wireless transmitter of a sound capturing device for picking up sound in said environment and providing a wirelessly received electric input signal representing said sound; and c) a processor configured c1) to receive said at least one acoustically received electric input signal or signals, or a processed version thereof; c2) to receive said wirelessly received electric input signal; and c3) to provide a processed signal. The processor comprises a signal predictor for estimating future values of said wirelessly received electric input signal in dependence of a multitude of past values of said signal, thereby providing a predicted signal. The hearing device further comprises d) an output transducer for presenting output stimuli perceivable as sound to the user in dependence of said processed signal from said processor, or a further processed version thereof. The processor is configured to provide said processed signal in dependence of the predicted signal or a processed version thereof 1) alone, or 2) mixed with said at least one acoustically received electric input signal or signals, or a processed version thereof. A hearing device comprising an earpiece and a separate audio processing device is further disclosed. The invention may e.g. be used in hearing devices in wireless communication with audio capture devices in an immediate environment of the user wearing the hearing device.

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Disclosed herein is a hearing aid. In some examples, the hearing aid includes an input unit configured to convert a sound in an environment of the hearing aid to at least one electrical input signal representative of the sound. The hearing aid can include an ultrasonic transceiver configured to output an ultrasonic signal and to receive a reflected ultrasonic signal from the environment. The hearing aid can include a signal processor configured to determine, based on the reflected ultrasonic signal and optionally the at least one electrical input signal, an audio parameter indicative of an object in the environment.

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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.

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There is presented a method (100) for wirelessly charging a plurality of rechargeable devices (211, 212, 213), wherein at least one rechargeable device is an ear level device, such as a hearing aid, said method including appointing (102) a master device (211) among the plurality of rechargeable devices, for each of the remaining rechargeable devices, transmitting (104) information regarding a current battery status to the master device, such as wherein the step of transmitting (104) information regarding battery status to the master device (211) is carried out via a first communication channel (216), determining (106) a charging profile of one or more rechargeable devices based on the plurality of information regarding current battery status, charging (108) the one or more rechargeable devices based on, such as according to, the charging profile, such as wherein communication between the master device (211) and a charger (214) is carried out via a second communication channel (218) such as a wireless communication channel, such as Bluetooth ® or Bluetooth Low Energy or proprietary protocol).

A method, in particular performed by at least one hearing device, a hearing device, a binaural hearing system, and a hearing system are disclosed. The method comprises: detecting at least one movement and/or acceleration of at least one hearing device; determining at least one tilt, in particular a movement pattern, of the at least one hearing device based on the detected movement and/or acceleration; and controlling and/or regulating operation of the at least one hearing device and/or a connected mobile device based on the determined tilt, in particular the determined movement pattern.

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A hearing device, e.g. a hearing aid, comprises a) a multitude of input units, each providing an electric input signal representing sound in the environment of the user in a time-frequency representation, wherein the sound is a mixture of speech and additive noise or other distortions, e.g. reverberation, b) a multitude of beamformer filtering units, each being configured to receive at least two, e.g. all, of said multitude of electric input signals, each of said multitude of beamformer filtering units being configured to provide a beamformed signal representative of the sound in a different one of a multitude of spatial segments, e.g. spatial cells, around the user, c) a multitude of speech probability estimators each configured to receive the beamformed signal for a particular spatial segment and to estimate a probability that said particular spatial segment contains speech at a given point in time and frequency, wherein at least one, e.g. all, of the multitude of speech probability estimators is/are implemented as a trained neural network, e.g. a deep neural network. The invention may e.g. be used in hearing aids or communication devices, such as headsets, or telephones, or speaker phones.

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