Patent classifications
H04R25/407
Directivity hearing-aid device and method thereof
The present disclosure relates a directivity hearing-aid device which primarily includes an audio pick-up device, a processor, a selector, and a speaker disposed in a case. The audio pick-up device receives a sound in a range which is pointed by a beam, and the processor generates a detected sound component by amplifying a sound feature point audio in a sound component corresponding to a detecting target which is selected by the selector and generates adjusted sound components by suppressing or shielding the sound feature point audio in the other sound components. Then the processor combines the detected sound component and the adjusted sound components to generate an output sound signal. Accordingly, the directivity hearing-aid device of the present disclosure provides selectively receiving the detected sound component and suppressing or shielding the other impurity sounds to facilitate the user hears audio from a specific object thereby.
HEARING ASSISTANCE METHOD
A method of providing hearing assistance to a at least one user wearing at least one receiver hearing assistance device from at least one audio transmission device worn by a another user, involving: automatically pairing and connecting the audio transmission device with the receiver hearing assistance device to form an ad-hoc network for exchanging network and/or control information, estimating at least one of an angular direction of the audio transmission device with regard to a viewing direction of the user of the receiver hearing assistance device and an angular direction of the receiver hearing assistance device with regard to a viewing direction of the user of the audio transmission device, admitting the audio transmission device to a wireless local acoustic area network for exchanging audio signals only if, as a predefined admission rule, the transmission device is within a field of view of one of the users.
METHOD OF OPERATING A HEARING AID SYSTEM AND A HEARING AID SYSTEM
A method of operating a hearing aid system with virtually zero delay and phase distortion. The invention also provides a hearing aid system (100) adapted for carrying out such a method.
METHOD OF OPERATING A HEARING AID SYSTEM AND A HEARING AID SYSTEM
A method of operating a hearing aid system with virtually zero delay and phase distortion. The invention also provides a hearing aid system (100) adapted for carrying out such a method.
Hearing device comprising a directional system
The application relates to a hearing device comprising an input unit for providing first and second electric input signals representing sound signals, a beamformer filter for making frequency-dependent directional filtering of the electric input signals, the output of said beamformer filter providing a resulting beamformed output signal. The application further relates to a method of providing a directional signal. The object of the present application is to create a directional signal. The problem is solved in that the beamformer filter comprises a directional unit for providing respective first and second beamformed signals from weighted combinations of the electric input signals, an equalization unit for equalizing a phase (and possibly an amplitude) of the beamformed signals and providing first and second equalized beamformed signals, and a beamformer output unit for providing the resulting beamformed output signal from the first and second equalized beamformed signals. This has the advantage to create a directional signal where the phase of the individual components is preserved, and therefore introducing no phase distortions. The invention may e.g. be used in hearing aids, headsets, ear phones, active ear protection systems, and combinations thereof.
Hearing aid device for hands free communication
The present invention regards a hearing aid device at least one environment sound input, a wireless sound input, an output transducer, electric circuitry, a transmitter unit, and a dedicated beamformer-noise-reduction-system. The hearing aid device is configured to be worn in or at an ear of a user. The at least one environment sound input is configured to receive sound and to generate electrical sound signals representing sound. The wireless sound input is configured to receive wireless sound signals. The output transducer is configured to stimulate hearing of the hearing aid device user. The transmitter unit is configured to transmit signals representing sound and/or voice. The dedicated beamformer-noise-reduction-system is configured to retrieve a user voice signal representing the voice of a user from the electrical sound signals. The wireless sound input is configured to be wirelessly connected to a communication device and to receive wireless sound signals from the communication device. The transmitter unit is configured to be wirelessly connected to the communication device and to transmit the user voice signal to the communication device.
HEARING AID COMPRISING A DIRECTIONAL MICROPHONE SYSTEM
A hearing aid comprises a BTE-part adapted for being located behind an ear (ear) of a user, and comprising a) a multitude M of microphones, which—when located behind the ear of the user—are characterized by respective transfer functions, H.sub.BTEi(θ, φ, r, k), representative of propagation of sound from sound sources S to the respective microphones b) a memory unit comprising complex, frequency dependent constants W.sub.i(k)′, i=1, . . . , M, c) a beamformer filtering unit for providing a beamformed signal Y as a weighted combination of the microphone signals using said complex, frequency dependent constants The frequency dependent constants are determined to provide a resulting transfer function
H.sub.pinna(θ, φ, r, k)=Σ.sub.i=1.sup.M W.sub.i(k).Math.H.sub.BTEi(θ, φ, r, k),
so that a difference between the resulting transfer function H.sub.pinna(θ, φ, r, k) and a transfer function H.sub.ITE(θ, φ, r, k) of a microphone located close to or in the ear canal fulfils a predefined criterion.
HEARING DEVICE COMPRISING A BEAMFORMER FILTERING UNIT
A hearing aid comprises a) first and second microphones b) an adaptive beamformer filtering unit comprising, b1) a first and second memories comprising a first and second sets of complex frequency dependent weighting parameters representing a first and second beam patterns, where said first and second sets of weighting parameters are predetermined initial values or values updated during operation of the hearing aid, b3) an adaptive beamformer processing unit providing an adaptation parameter β.sub.opt(k) representing an adaptive beam pattern configured to attenuate unwanted noise under the constraint that sound from a target direction is essentially unaltered, b4) a third memory comprising a fixed adaptation parameter β.sub.fix(k) representing a third, fixed beam pattern, b5) a mixing unit providing a resulting complex, frequency dependent adaptation parameter β.sub.mix(k) as a combination of said fixed and adaptively determined frequency dependent adaptation parameters β.sub.fix(k) and β.sub.opt(k), respectively, and b6) a resulting beamformer (Y) for providing a resulting beamformed signal Y.sub.BF based on first and second microphone signals, said first and second sets of complex frequency dependent weighting parameters, and said resulting complex, frequency dependent adaptation parameter β.sub.mix(k).
HEARING DEVICE WITH NEURAL NETWORK-BASED MICROPHONE SIGNAL PROCESSING
A hearing system performs nonlinear processing of signals received from a plurality of microphones using a neural network to enhance a target signal in a noisy environment. In various embodiments, the neural network can be trained to improve a signal-to-noise ratio without causing substantial distortion of the target signal. An example of the target sound includes speech, and the neural network is used to improve speech intelligibility.
Hearing device adapted to provide an estimate of a user's own voice
A hearing device adapted to be worn by a user and for picking up sound containing the user's own voice is provided. The hearing device comprises a) an input unit comprising first and second input transducers for converting sound to first and second electric input signals, respectively, representing said sound; b) a processor configured to receive said first and second electric input signals and to provide a combined signal as a linear combination of the first and second electric input signals, wherein the combined signal comprises an estimate of the user's own voice, and c) wherein said hearing device is configured to provide that said first and second input transducers are located on said user at first and second locations, when worn by said user; and d) wherein said first and second locations are selected to provide that said first and second electric signals exhibit substantially different directional responses for sound from the user's mouth as well as from sound from sound sources located in an environment around the user. A method of operating a hearing device is further disclosed. Thereby an improved quality of an own voice estimate may be provided.