15 results about "Binaural hearing aids" patented technology

The invention relates to the technical field of hearing aid sound source localization, in particular to a sound source localization and enhancement method for a binaural hearing aid, and the method comprises the steps: determining a sound source angle in any time period according to the relevance between received signals of different microphones in any time period in combination with random maximum likelihood estimation; determining the existence probability of each sound source at the sound source angle in any time period by analyzing the distribution condition of each sound source and combining a Gaussian mixture model; based on the existence probability of each sound source under the sound source angle of any time period, determining the dynamic existence probability of each sound source under the sound source angle of any time period; and enhancing the sound sources based on the dynamic existence probability of each sound source at the sound source angle of the current time period. The invention aims to improve the sound source positioning precision and enhance the intensity of the sound source signal received by the hearing aid.

A binaural hearing aid system comprises left and right hearing instruments each comprising a BTE-part comprising a housing configured to be located at or behind an outer ear of the user and an acceleration sensor configured to measure acceleration in at least two directions relative to the housing of the BTE-part and to provide acceleration data indicative thereof. A first one of the left and right hearing instruments comprises a transmitter configured to transmit said acceleration data to the other hearing instrument, and the other hearing instrument comprises a receiver for receiving said acceleration data from the first one of the hearing instruments. The other hearing instrument further comprises a controller for detecting whether or not the left and right hearing instruments are correctly mounted in dependence of a similarity measure between said acceleration data provided by the left and right hearing instruments. A method of operating a binaural hearing aid system is further disclosed.

The invention relates to a voice data processing method and a binaural hearing aid. The method is applied to the binaural hearing aid, the binaural hearing aid comprises a first hearing aid and a second hearing aid, and the method comprises the following steps: respectively acquiring voice data acquired by the first hearing aid and the second hearing aid, extracting voiceprint features in the voice data under the condition of judging that potential self-talking voice exists in the voice data, the voiceprint features are compared with stored standard voiceprint features of the user, a comparison result is obtained, the standard voiceprint features are obtained by processing voice sample data of the user, and the voice sample data comprise near-talking voice data collected by a first hearing aid close to the mouth of the user; and if the comparison result shows that the self-talking voice exists in the voice data, performing enhancement processing on the voice data. By adopting the method, more accurate self-talking voice detection can be realized.

The invention provides a robust binaural beam forming method. The robust binaural beam forming method comprises the steps of 1, calculating noisy signals received by all microphones in a binaural hearing aid; 2, calculating a covariance matrix of noisy signals and total noise; 3, calculating the binaural cue loss of the expected voice source and the jth interference source; step 4, calculating the worst binaural cue retention condition of the expected voice source; 5, the formula (13) in the step 4 is simplified by making the two norm of e smaller than or equal to a constant eta and utilizing a Cauchy-Schwarz inequality; 6, listing a cost function according to the total noise covariance matrix Rnn obtained in the step 2 and the Pa obtained in the step 5; and step 7, decomposing the matrix # imgabs0 # through a singular value decomposition method, and solving filters wL and wR by using a CVX toolbox in Matlab. According to the invention, under the condition of HRTF mismatch, the spatial cues are reserved as much as possible, and balance between spatial cue reservation and noise reduction effect is realized through parameter adjustment.

A binaural hearing aid system includes first and second hearing aids configured to be worn by a user at or in respective first and second ears of the user, each of the first and second hearing aids including: at least one input transducer configured to pick up a sound at the at least one input transducer and to convert the sound to at least one electric input signal representative of the sound, the sound at the at least one input transducer including a mixture of a target signal and noise; a controller for evaluating the sound at the at least one input transducer and providing a control signal indicative of a property of the sound; a transceiver configured to establish a communication link between the first and second hearing aids allowing the exchange of the control signal between the first and second hearing aids; a transmitter for establishing an audio link for transmitting the at least one electric input signal, or a processed version thereof, to another device. The controller is configured to: transmit the locally provided control signal to, and receive a corresponding remotely provided control signal from the opposite hearing aid via the communication link, and to compare the locally provided and the remotely provided control signals and to provide a comparison control signal in dependence thereof, and to transmit the at least one electric input signal, or a processed version thereof, to the another device via the audio link in dependence of the comparison control signal.

The application provides a method and device for improving sound source positioning accuracy of a binaural hearing aid, which is applied to the binaural hearing aid, and the method comprises the following steps: acquiring a first frequency signal and a second frequency signal, and recording intensity information and respective acquisition time stamps of the first frequency signal and the second frequency signal, wherein the first frequency signal and the second frequency signal are the same specific frequency signal with different acquisition positions; if the acquisition time stamp of the first frequency signal is synchronous or earlier than that of the second frequency signal, when the binaural hearing aid is affected by a head shadow effect, the intensity information difference between the first frequency signal and the second frequency signal and the time difference of the acquisition time stamps are calculated, the analog distance of the specific frequency signal affected by the head shadow effect on a propagation path is deduced, the intensity information of the analog frequency signal and the analog acquisition time stamp are calculated through the difference of sound wave propagation speeds in different media, and available frequency information can be generated.

The invention discloses a binaural hearing aid with a protection function, and relates to the technical field of hearing aids, the binaural hearing aid comprises a hearing aid shell, a receiver and a protective sleeve, one end of the hearing aid shell is connected with a plastic ear hook, one end of the plastic ear hook is buckled with the protective sleeve, a hose led out from the receiver penetrates through the protective sleeve and the plastic ear hook and extends into the hearing aid shell, and the protective sleeve is connected with the plastic ear hook. The hearing aid shell comprises a first shell and a second shell; a sealing structure formed by the sealing ring prevents sweat and rainwater from eroding an internal circuit of the hearing aid. The sealing shock pad seals the gap between the first shell and the second shell, sweat and dirt cannot remain in the gap, the sealing performance is further improved, cleaning is convenient, and part of impact force generated by falling is absorbed through the characteristic that the sealing shock pad can deform so that the hearing aid can be protected. And the sealing ring shrinks inwards to drive the outer locking plate to move towards the airflow channel, so that the locking teeth are separated from the locking grooves, and the first shell and the second shell are conveniently disassembled.

This invention patent provides a sound coordination processing method and apparatus for binaural hearing aids. The binaural hearing aid has two audio acquisition devices located on either side of the head, and the two audio acquisition devices are communicatively connected. The method includes: the two audio acquisition devices synchronously acquiring sounds from the surrounding environment and adding timestamps to the sounds; parsing the sounds into multiple sound signals with different audio characteristics, the sound signals excluding noise signals; adaptively adjusting the sound signals according to the order in which they are acquired; merging the adaptively adjusted sound signals into an output signal; and recording the sound signal characteristics acquired by one hearing aid within a certain time domain so that when the other hearing aid acquires the sound signal with the same characteristics, there is no need for secondary filtering of that sound signal.

The present invention discloses a binaural hearing aid with a protective function, and relates to the technical field of hearing aids, including a hearing aid housing, an earpiece, and a protective cover. One end of the hearing aid housing is connected to a plastic ear hook, and one end of the plastic ear hook is buckled with the protective cover. A hose drawn from the earpiece passes through the protective cover and the plastic ear hook and extends into the hearing aid housing. The hearing aid housing includes a first shell and a second shell. The sealing structure formed by the sealing ring prevents sweat and rain from corroding the internal circuit of the hearing aid. The sealing shock-absorbing pad seals the gap between the first shell and the second shell, and sweat and dirt cannot remain in the gap, further improving the sealing performance and facilitating cleaning. The sealing shock-absorbing pad can absorb part of the impact force generated by falling through the deformable characteristics to protect the hearing aid. The sealing ring shrinks inward to drive the outer locking plate to move toward the direction of the air flow channel, so that the locking teeth are disengaged from the locking groove to facilitate the disassembly of the first shell and the second shell.

The present application describes a method for processing voice data for a binaural hearing aid. The binaural hearing aid may comprise a first hearing aid and a second hearing aid. The method may comprise acquiring voice data collected by the first hearing aid and the second hearing aid respectively; and extracting a voiceprint feature from the voice data based on determining that potential self-talk voice is in the voice data. The method may further comprise determining, based on voice sample data of a user, standard voiceprint feature associated with the user. In addition, the method may further comprise comparing the voiceprint feature with the standard voiceprint feature to obtain a comparison result; and enhancing the voice data based on determining that the comparison result indicates self-talk voice in the voice data.

A binaural hearing aid system comprises left and right hearing instruments each comprising a BTE-part comprising a housing configured to be located at or behind an outer ear of the user and an acceleration sensor configured to measure acceleration in at least two directions relative to the housing of the BTE-part and to provide acceleration data indicative thereof. A first one of the left and right hearing instruments comprises a transmitter configured to transmit said acceleration data to the other hearing instrument, and the other hearing instrument comprises a receiver for receiving said acceleration data from the first one of the hearing instruments. The other hearing instrument further comprises a controller for detecting whether or not the left and right hearing instruments are correctly mounted in dependence of a similarity measure between said acceleration data provided by the left and right hearing instruments. A method of operating a binaural hearing aid system is further disclosed.

A binaural hearing aid system comprising a first hearing aid (200) and a second hearing aid, with improved adaptive feedback suppression based on probe noise signals and a method (300) of operating such a binaural hearing aid system.

The present invention relates in a first aspect to a binaural hearing aid system comprising a first hearing aid for placement at, or in, a user's right ear and a second hearing aid for placement at, or in, a user's left ear or vice versa. A first signal processor of the first hearing aid is configured to generate a first monaural beamforming signal based on one or more microphone signals supplied by a first microphone arrangement of the first hearing aid in response to incoming sound, said first monaural beamforming signal exhibiting a first polar pattern with maximum sensitivity in a target direction. The first signal processor is additionally configured to generate a bilateral beamforming signal based on the first monaural beamforming signal and a second monaural beamforming signal received from the second hearing aid. The bilateral beamforming signal exhibits a polar pattern with maximum sensitivity in a target direction, typically the user's frontal direction, and reduced sensitivity at respective ipsilateral or local sides of the first and second hearing aids. The first signal processor is furthermore configured to generate a third monaural beamforming signal based on the one or more microphone signals and exhibiting a third polar pattern with maximum sensitivity at the ipsilateral side of the first hearing aid and reduced sensitivity in the target direction and reduced sensitivity at the contralateral side of the first hearing aid. The first signal processor is additionally configured to time delaying the third monaural beamforming signal relative to the first bilateral beamforming signal to reduce their correlation and combine the first bilateral beamforming signal and a time delayed third monaural beamforming signal to form a first hybrid beamforming signal; The first, second and third polar patterns have been measured or otherwise determined with the first and second hearing aids mounted on right and left ears of an acoustic manikin.

This application relates to the technical field of sound source localization for hearing aids, and specifically relates to a sound source localization and enhancement method for binaural hearing aids. The method includes: determining the sound source angle at any time period according to the correlation between the received signals of different microphones at any time period and combining random maximum likelihood estimation; determining the existence probability of each sound source at the sound source angle at any time period by analyzing the distribution of each sound source and combining the Gaussian mixture model; determining the dynamic existence probability of each sound source at the sound source angle at any time period based on the existence probability of each sound source at the sound source angle at any time period; enhancing the sound source based on the dynamic existence probability of each sound source at the sound source angle of the current time period. The purpose of this application is to improve the accuracy of sound source localization and enhance the intensity of the sound source signal received by the hearing aid.