Patent classifications
H04R25/50
AUDIO PROCESSING DEVICE AND A METHOD FOR ESTIMATING A SIGNAL-TO-NOISE-RATIO OF A SOUND SIGNAL
An audio processing device comprises a) at least one input unit for providing time-frequency representation Y(k,n) of an electric input signal representing sound consisting of target speech and noise signal components, where k and n are frequency band and time frame indices, respectively, b) a noise detection and/or reduction system configured to b1) determine an a posteriori signal to noise ratio estimate γ(k,n) of said electric input signal, and to b2) determine an a priori target signal to noise signal ratio estimate ζ(k,n) of said electric input signal from said a posteriori signal to noise ratio estimate γ(k,n) based on a recursive decision directed algorithm. The application further relates to a method of of estimating an a priori signal to noise ratio. The invention may e.g. be used for the hearing aids, headsets, ear phones, active ear protection systems, handsfree telephone systems, mobile telephones, etc.
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Method and system for providing hearing assistance to a user
Method for providing hearing assistance to a user by capturing audio signals with a microphone arrangement of a transmission unit; analyzing, by a voice activity detector of the transmission unit, the captured audio signals to judge whether a voice is present close to the microphone arrangement or not, analyzing, by a noise level estimator, the captured audio signals to estimate a surrounding noise level, processing the captured audio signals and transmitting, by a transceiver of the transmission unit, the processed audio signals via a wireless link to a receiver unit, and stimulating the user's hearing, by stimulating means at or in at least one user ear, according to the received audio signals, wherein the audio signals are processed via the wireless link by setting the gain applied to the audio signals according to the close voice/no close voice judgment of the voice activity detector and the estimated surrounding noise level.
HEARING DEVICE COMPRISING A NOISE REDUCTION SYSTEM
A hearing device adapted for being worn at or in an ear of a user, comprises a) an input unit comprising at last two input transducers each for converting sound around said hearing device to an electric input signal representing said sound, thereby providing at least two electric input signals; b) a beamformer filter comprising a minimum processing beamformer defined by optimized beamformer weights, the beamformer filter being configured to provide a filtered signal in dependence of said at least two electric input signals and said optimized beamformer weights; c) a reference signal representing sound around said hearing device; d) a performance criterion for said minimum processing beamformer. The minimum processing beamformer is a beamformer that provides the filtered signal with as little modification as possible in terms of a selected distance measure compared to said reference signal, while still fulfilling said performance criterion. The optimized beamformer weights are adaptively determined in dependence of said at least two electric input signals, said reference signal, said distance measure, and said performance criterion. A method of operating a hearing device is further disclosed. The invention may e.g. be used in hearing aids or headsets.
Method for operating a hearing instrument and a hearing system containing a hearing instrument
A method operates a hearing instrument that is worn in or at the ear of a user. The method includes capturing a sound signal from an environment of the hearing instrument; analyzing the captured sound signal to recognize own-voice intervals, in which the user speaks, and foreign-voice intervals, in which at least one different speaker speaks; and determining, from the recognized own-voice intervals and foreign-voice intervals, at least one turn-taking feature. From the at least one turn-taking feature a measure of the sound perception by the user is derived. Predefined action for improving the sound perception is taken if the measure or the at least one turn-taking feature fulfill a predefined criterion.
HEARING EVALUATION AND CONFIGURATION OF A HEARING ASSISTANCE-DEVICE
A method for evaluating hearing of a user comprising: generating a baseline hearing profile for the user comprising a set of gain values based on a volume setting, each gain value in the set of gain values corresponding to a frequency band in a set of frequency bands; accessing a soundbite comprising a phrase characterized by a frequency spectrum predominantly within one frequency band; playing the soundbite amplified by a first gain in the frequency band; playing the soundbite amplified by a second gain in the frequency band; receiving a preference input representing a preference of the user from amongst the soundbite amplified by the first gain and the soundbite amplified by the second; and modifying a gain value, corresponding to the frequency band, in the baseline hearing profile based on the preference input to generate a refined hearing profile compensating for hearing deficiency of the user.
Methods of self-calibrating of a hearing device and related hearing devices
A method for self-calibrating of a hearing device (which includes an ear canal microphone, an external microphone, and a receiver) includes: obtaining an input signal with the external microphone; providing an output signal with the receiver; measuring the output signal using the ear canal microphone; predicting an output response based on a gain setting; determining a difference between the predicted output response and the measured output signal; and calibrating the hearing device by controlling a gain parameter based on the difference.
REMOTELY UPDATING A HEARING AID PROFILE
Broadly speaking, the embodiments disclosed herein describe replacing a current hearing aid profile stored in a hearing aid. In one embodiment, the hearing aid profile is updated by sending a hearing aid profile update request to a hearing aid profile service, receiving the updated hearing aid profile from the hearing aid profile service, and replacing the current hearing aid profile in the hearing aid with the updated hearing aid profile.
Visual communication of hearing aid patient-specific coded information
A method and system visually communicates hearing aid information between a patient's smartphone and an audiologist's computer system by using a QR code captured by a camera. When the audiologist's computer system takes a picture of the QR code on the display of the patient's smartphone, the QR code contains at least one piece of audiological data representing historical or current patient-specific usage of the hearing aid. When the patient's smartphone takes a picture of the QR code on the display of the audiologist's computer system, the QR code contains audiological data, which the patient's smartphone extracts to transmit instructions or information to adjust at least one audiological parameter setting on the patient's hearing aid. The patient may transmit or receive an image file of either QR code over a network, thereby communicating the same information with the audiologist.
SOUND-OUTPUT DEVICE
The present application discloses a sound-output device, including a vibration speaker configured to generate a bone-conducted sound wave; and an air-conducted speaker configured to generate an air-conducted sound wave; the sound-output device is configured to output sound waves within a target frequency range, the bone-conducted sound wave includes a high frequency portion of the target frequency range, and the air-conducted sound wave includes a low frequency portion of the target frequency range.
SYSTEM, METHOD AND COMPUTER PROGRAM FOR INTERACTIVELY ASSISTING A USER IN EVALUATING A HEARING LOSS
A system, method and computer program are configured to interactively assist a user in evaluating and/or configuring a hearing aid. The system is equipped with a display element, with an input unit and with a processing unit. The environmental situations are shown on the display element. Based on a user input, a selected section of the environmental situation is determined and highlighted. A specific hearing situation is presented on the basis of the selection made by the user. An evaluation scale is displayed, allowing the user to enter a hearing value for a self-assessment of his hearing ability for the specific hearing situation, and the hearing value entered by the user is recorded. The above steps are repeated and hearing values are recorded for different specific hearing situations. Based on the hearing values entered by the user, setting values for the hearing aid are determined.