Patent classifications
H04R25/407
Hearing aid system containing at least one hearing aid instrument worn on the user's head, and method for operating such a hearing aid system
A hearing aid system assists a user's ability to hear. The system has a hearing aid instrument worn on the user's head. A sound signal from the user's surroundings is recorded and converted into input audio signals by two input transducers. The input audio signals are processed in a signal processing step for generating an output audio signal, which is output by an output transducer. The input audio signals or audio signals derived therefrom by pre-processing are direction-dependently damped by an adaptive beamformer according to the stipulation of a variable directivity with a directional strength to generate a directed audio signal. The directivity is varied with a specified adaptation speed such that the energy content of the directed audio signal is minimized. The adaptation speed and/or the directional strength are variably set on a basis of an analysis of the input audio signals or of the pre-processed audio signals.
OPEN ACOUSTIC DEVICE
An open acoustic device (100) may include a fixing structure (120) configured to fix the acoustic device (100) near an ear of a user without blocking an ear canal of the user; a first microphone array (130) configured to acquire environmental noise (410); a signal processor (140) configured to: determine, based on the environmental noise, a primary route transfer function (420) between the first microphone array (130) and the ear canal of the user; estimate, based on the environmental noise and the primary route transfer function, a noise signal (430) at the ear canal of the user; and generate, based on the noise signal at the ear canal of the user, a noise reduction signal (440); and a speaker (150) configured to output, according to the noise reduction signal, a noise reduction acoustic wave (450), the noise reduction acoustic wave being configured to eliminate the noise signal.
Beam rejection in multi-beam microphone systems
The systems, devices, and processes described herein may identify a beam of a voice-controlled device that is directed toward a reflective surface, such as a wall. The beams may be created by a beamformer. An acoustic echo canceller (AEC) may create filter coefficients for a reference sound. The filter coefficients may be analyzed to identify beams that include multiple peaks. The multiple peaks may indicate presence of one or more reflective surfaces. Using the amplitude and the time delay between the peaks, the device may determine that it is close to a reflective surface in a direction of the beam.
HEARING AID DEVICE COMPRISING A SENSOR MEMBER
- Michael Syskind Pedersen ,
- Kenneth Rueskov MØLLER ,
- Svend Oscar PETERSEN ,
- Niels Stubager KIEMER ,
- Jesper Kofoed NIELSEN ,
- Björn OHL ,
- Marianne Kleist ELMLUND ,
- Karin CARVALHO ,
- Henrik BENDSEN ,
- Regin Kopp PEDERSEN ,
- Christian C. BÜRGER ,
- Steen Michael MUNK ,
- Morten CHRISTOPHERSEN ,
- Julie Hefting PEDERSEN ,
- Bo WESTERGÅRD ,
- Maria OXENBØLL
A hearing aid device is disclosed. The hearing aid device comprises means to improve, augment and/or protect the hearing capability of a user by receiving acoustic signals from the surroundings of the user, generating corresponding audio signals, possibly modifying the audio signals and providing the possibly modified audio signals as audible signals to at least one of the user's ears. The hearing aid device comprises a sensor member for detecting the movement and/or acceleration and/or orientation (or spatial position) of the hearing aid device. The hearing aid device comprises at least two hearing aid microphones and a control unit for determining the position or a deviation from an intended position of the hearing aid device or hearing aid microphones. The hearing aid device is configured to compensate for a possible dislocation of the hearing aid microphones.
Hearing device for identifying a sequence of movement features, and method of its operation
Hearing device including a housing worn at a user's ear; a movement detector providing movement data indicating movement of the housing; and a processor identifying, based on the movement data, movement features in a sequence. The movement features represent movement activity by the user. The processor determines a temporal characteristic of the sequence of movement features and/or an amplitude characteristic of the movement data associated with a movement feature in the sequence. A method of operating the hearing device, and a computer-readable medium storing instructions to perform the method. The processor controls maintaining a data record representing the temporal characteristic and/or the amplitude characteristic determined at a plurality of times; determines a deviation measure indicating deviation between the data record and the temporal characteristic and/or the amplitude characteristic determined at a time later than the plurality of times; and controls operation of the hearing device depending on the deviation measure.
HEARING AID SYSTEM INTEGRABLE IN AN EYEGLASS FRAME
The present disclosure is related to an eyeglass frame system comprising at least two microphones in wireless communication with adapted air buds. The hearing aid system is configured with a video camera in communication with a face contour detection process that together with an audio processing system is performing beam forming of respective microphones thereby improving reception of audio sound from the direction of identified face contours.
REMOTE MICROPHONE FOR A HEARING AID
A remote microphone device for a hearing aid system comprises a multitude of microphones providing a corresponding multitude of electric input signals; a digital signal processor for providing a processed signal in dependence of said multitude of electric input signals. The processor comprises a noise reduction system comprising at least one beamformer for providing a spatially filtered signal. The remote microphone device further comprises a wireless communication interface comprising antenna and transceiver circuitry allowing the remote microphone device to transmit said processed signal comprising said spatially filtered signal or a further processed version thereof to said hearing aid system; a rechargeable battery; a casing having a planar structure with a form and size as a standard credit card; and a user interface configured to allow the user to control functionality of the remote microphone device. The invention may e.g. be used in hearing aid systems or headsets.
INTERCHANGEABLE HEARING DEVICE TRANSDUCER MODULE STORING TRANSDUCER CALIBRATION INFORMATION
An example of a hearing system for delivering sounds to a user may include a core module and an interchangeable transducer module. The core module may include an audio processing circuit configured to process audio signals representative of the sounds, a transducer interface circuit configured to provide the audio processing circuit with an interface to one or more transducers, and a case housing the audio processing circuit and the transducer interface circuit. The interchangeable transducer module may be configured to be detachably attached to the core module. The transducer module may include the transducer(s) and a transducer circuit configured to be communicatively coupled to the transducer interface circuit. The transducer circuit may include a memory circuit storing calibration information for the transducer(s). The calibration information may include one or more characteristics of each transducer determined during a calibration of that transducer.
SMART HEARING DEVICE FOR DISTINGUISHING NATURAL LANGUAGE OR NON-NATURAL LANGUAGE, ARTIFICIAL INTELLIGENCE HEARING SYSTEM, AND METHOD THEREOF
The inventive concept relates to a smart hearing device for providing a control parameter and feedback for a natural language or a non-natural language determined by analyzing sound data, which includes a receiving unit that receives sound data of a voice signal and a noise signal from a first microphone and a second microphone being formed at one side, a determination unit that compares digital flow of the sound data with a previously stored graph pattern to determine a natural language or a non-natural language for the sound data, a processing unit that matches similar data for the determined natural language or non-natural language, based on a database including a natural language area and a non-natural language area, and a providing unit that provides a user with a one-sided sound converted by setting a control parameter in a natural language or a non-natural language specified according to the matched similar data.
Hearing device with microphone switching and related method
A hearing device includes: first and second primary microphones for provision of first and second primary microphone input signals; a secondary microphone for provision of a secondary microphone input signal; a mixing module for provision of a mixer output based on a primary mixer input and/or a secondary mixer input, primary mixer input being based on the first and second primary microphone input signals, the secondary mixer input being based on the secondary microphone input signal; a processing unit configured to provide an electrical output signal; and a receiver for converting the electrical output signal to an audio output signal; wherein the mixing controller is configured to increase an amount of the secondary mixer input in the mixer output for a time period after a presence of a sound event is determined, and reduce the amount of the secondary mixer input in the mixer output after the time period.