EP3576433B1 - Procédé de réduction de la présence d'une rétroaction acoustique dans un appareil auditif - Google Patents

Procédé de réduction de la présence d'une rétroaction acoustique dans un appareil auditif Download PDF

Info

Publication number
EP3576433B1
EP3576433B1 EP19174570.2A EP19174570A EP3576433B1 EP 3576433 B1 EP3576433 B1 EP 3576433B1 EP 19174570 A EP19174570 A EP 19174570A EP 3576433 B1 EP3576433 B1 EP 3576433B1
Authority
EP
European Patent Office
Prior art keywords
situation
frequency
feedback
hearing device
hearing aid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19174570.2A
Other languages
German (de)
English (en)
Other versions
EP3576433A1 (fr
Inventor
Stefan Aschoff
Stefan Petrausch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sivantos Pte Ltd
Original Assignee
Sivantos Pte Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sivantos Pte Ltd filed Critical Sivantos Pte Ltd
Publication of EP3576433A1 publication Critical patent/EP3576433A1/fr
Application granted granted Critical
Publication of EP3576433B1 publication Critical patent/EP3576433B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/45—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback
    • H04R25/453—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback electronically
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1781—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions
    • G10K11/17813—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the acoustic paths, e.g. estimating, calibrating or testing of transfer functions or cross-terms
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1781—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions
    • G10K11/17813—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the acoustic paths, e.g. estimating, calibrating or testing of transfer functions or cross-terms
    • G10K11/17819—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the acoustic paths, e.g. estimating, calibrating or testing of transfer functions or cross-terms between the output signals and the reference signals, e.g. to prevent howling
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1783—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase handling or detecting of non-standard events or conditions, e.g. changing operating modes under specific operating conditions
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L21/0232—Processing in the frequency domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
    • H04R25/505—Customised settings for obtaining desired overall acoustical characteristics using digital signal processing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/41—Detection or adaptation of hearing aid parameters or programs to listening situation, e.g. pub, forest
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/43—Signal processing in hearing aids to enhance the speech intelligibility
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/01—Hearing devices using active noise cancellation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/30—Monitoring or testing of hearing aids, e.g. functioning, settings, battery power
    • H04R25/305—Self-monitoring or self-testing

Definitions

  • the invention relates to a method for reducing the occurrence of acoustic feedback in a hearing aid, with a first wearing situation being established which defines a positioning of the hearing aid relative to the wearer, with a first use situation being established for the first wearing situation, and with a specification for a Adjusting at least one hearing aid parameter takes place.
  • acoustic feedback poses a particular problem in the operation of a hearing aid
  • Signal processing of the hearing aid in which an amplification is applied to the signal from the input transducer. If the attenuation factor by which the sound from the output transducer is attenuated on the sound path to the input transducer is lower than the amplification factor of the signal processing, the system can become unstable as a result of the closed amplification loop. This can be heard as a whistling sound at the relevant frequencies and therefore leads to a considerable impairment of the wearer's hearing.
  • One of the common measures for suppressing such acoustic feedback is to reduce the amplification of the signal processing when the feedback is registered.
  • the reduction in gain can be limited to those frequency ranges in which the feedback occurs.
  • this has the disadvantage that the amplification of the signal processing is no longer selected solely as a function of the wearer's individual hearing impairment, so that an output sound signal generated by the output transducer is no longer optimally matched to the wearer's audiological needs.
  • acoustic feedback path can affect changes such as using a mobile phone or putting on headgear can be changed so that the attenuation is reduced, and thus a critical feedback loop occurs.
  • a spontaneous occurrence of feedback often leads to a whistling noise that is perceived as unpleasant in the described measures for suppression.
  • the EP 2 869 600 A1 calls for a hearing aid suppression of acoustic feedback by means of a compensation signal which is subtracted from an input signal of the hearing aid, with an estimation of a residual feedback which is not suppressed by the compensation signal.
  • a gain parameter in the hearing aid is adapted on the basis of the residual feedback.
  • the US 2010/0 260 365 A1 calls a hearing aid with two different units for detecting acoustic feedback on the hearing aid, the respective output signals of the two units being able to indicate respective probabilities of acoustic feedback, and for example in a comparator circuit be compared with one another or with a predetermined limit value.
  • the two units for detecting the acoustic feedback can differ, for example, in a time constant, so that one of the units reacts particularly quickly, the other detects feedback more slowly but more reliably.
  • the invention is based on the object of specifying a method by which a spontaneous occurrence of feedback is reduced in certain situations, which should have as little influence as possible on the output signals generated based on the input signals according to the individual hearing impairment of the wearer of the hearing aid.
  • the stated object is achieved according to the invention by a method for reducing the occurrence of acoustic feedback in a hearing aid, with a first wearing situation being established which defines a positioning of the hearing aid relative to the wearer, with a first use situation being established for the first wearing situation, which is established by at least one body movement of the wearer of the hearing aid and / or at least one relative position of an external object to the wearer's body is characterized, and a plurality of frequency-resolved curves of a feedback tendency of the hearing aid is determined for the first use situation.
  • a first criticality measure is determined on the basis of each frequency-resolved curve for the first use situation, which contains information on a frequency range that is critical with regard to the occurrence of acoustic feedback and a corresponding relative probability for an occurrence of acoustic feedback, with that for a given frequency
  • First criticality measure for the first user situation based on a scatter measure for the values of the feedback tendency resulting from the plurality of frequency-resolved curves in each case at this frequency, a second use situation being established for the first wearing situation, with a second criticality measure in one for the second use situation is determined in an analogous manner to how the first criticality measure for the first usage situation, and based on the entirety of the first criticality measure and the second criticality measure a specification for adapting at least one hearing aid parameter is made.
  • a wearing situation is to be understood here in particular as the entirety of the circumstances under which the hearing aid is locally fixed on the wearer, and in particular an exchangeable acoustic coupling piece (such as an ear mold or a so-called "dome") that may be present assumes a certain position .
  • two wearing situations can differ with regard to the exact spatial position of the hearing aid and / or the acoustic coupling piece, or they can also be given by using different acoustic coupling pieces.
  • a usage situation here and in the following includes in particular that the wearer of the hearing aid carries out body movements during operation, in particular in a specific wearing situation, or moves himself relative to limiting objects such as walls or windows, so that the movements occurring in the usage situation are particularly suitable for this are to influence an acoustic feedback path of the hearing aid.
  • a feedback tendency of the hearing aid includes, in particular, a frequency-dependent parameter, on the basis of which a quantitative probability of an acoustic feedback occurring at the relevant frequency can be determined.
  • a tendency towards feedback can be given here by a ratio or a difference between an attenuation of the acoustic feedback path and a gain due to signal processing taking place in the hearing aid.
  • a frequency-resolved curve of a feedback tendency can in this respect be given by the respective values of the feedback tendency over the corresponding frequency spectrum, or by the values of the feedback tendency at a plurality of support points for the frequency, which are to be selected with a sufficiently high frequency resolution.
  • the first criticality measure for the feedback tendency is also determined on the basis of a weighting of the values of the various curves at a given frequency determined.
  • the criticality measure is preferably calculated in such a way that at a given frequency for a high variance of values of the feedback tendencies of the various curves a higher value is generated for the first criticality measure than in a situation with an identical maximum value of the feedback tendencies with a lower one Variance. This takes into account the fact that at a certain frequency for a high variance of the values of the feedback tendency in the first use situation, an even further spread beyond the decimal value recorded in the measurement is to be expected, while a low variance of the values at a given frequency speaks for a greater intrinsic stability of the system.
  • the relative probability of such an occurrence of the feedback can in particular also be related to other frequency ranges, so the first criticality measure in particular make a statement that feedback is more likely for a first frequency than for a second frequency if the value of the first Criticality measure at the first frequency is greater than the value at the second frequency.
  • the at least one hearing aid parameter is preferably adapted in accordance with the specification made on the basis of the first criticality measure, it being possible for the adaptation in particular to take place automatically.
  • the adjustment can also be carried out manually by a hearing aid acoustician in accordance with the specification.
  • the at least one hearing aid parameter is preferably adapted with the additional specification of impairing signal amplification and reproduction dynamics in the hearing aid as little as possible. This can take place in particular in that the at least one hearing aid parameter is only adapted for that frequency range for which, on the basis of the first criticality measure, an occurrence of feedback in the first use situation is considered to be sufficiently likely at all.
  • the evaluation can be done by a threshold comparison of the frequency-resolved first criticality measure over the entire spectrum.
  • the probability of feedback occurring can be limited in a targeted manner to those frequency ranges in which a change in the present hearing aid parameters is necessary in order to avoid feedback, thereby adapting the reproduction properties the hearing aid can be designed "minimally invasive".
  • Previous methods for reducing or suppressing feedback which are based on an adaptation of hearing aid parameters, usually check the occurrence of feedback in a frequency band. The adjustment of the hearing aid parameters for the signals involved takes place with the smallest possible time delay for their checking, since it takes place during the ongoing operation of the hearing aid.
  • the hearing aid parameters are set frequency band-wise at the level of adaptation, whereby, for example, if a gain factor in a frequency band is reduced, the reproduction for the entire frequency band is affected, while a critical probability for an occurrence of a There is feedback, and thus an adjustment of the gain would only be sufficient over this interval.
  • the first criticality measure and the described adaptation can be used to check whether the probability of feedback for the first feedback situation can really be reduced by the corresponding adaptation of the at least one hearing aid parameter. If this is not the case, this can be interpreted as an indication of a problem which, in the broadest sense, is related to the wearing situation of the hearing aid, and further measures can be coordinated accordingly.
  • a plurality of frequency-resolved curves of a feedback tendency is determined for the first usage situation, the first criticality measure for the first user situation being formed for a given frequency using a degree of dispersion of the values of the feedback tendency resulting from the plurality of frequency-resolved curves at this frequency.
  • the first usage situation is continuously maintained, e.g. by maintaining and / or repeating a corresponding body movement. Specifically, this can be done in such a way that the body movement, which characterizes the first use situation, is repeated several times, and a plurality of curves of the feedback tendency are determined in the process.
  • the degree of dispersion for each frequency i.e. the variance of the values for example, is calculated which the different curves show for the feedback tendency at this frequency, and the first criticality measure is formed on the basis of the determined variances for different frequencies.
  • the at least one hearing aid parameter can also be adapted accordingly if none of the values determined for the feedback tendency is directly critical for feedback at a given frequency.
  • the degree of dispersion of the values for the feedback tendency can therefore be viewed as an indicator of the stability of the feedback path in the first use situation.
  • An attenuation of an acoustic feedback path is expediently measured, the tendency for feedback at a given frequency to be determined in each case on the basis of a signal amplification in the hearing aid and on the basis of the attenuation of the acoustic feedback path.
  • the feedback tendency for a given frequency is determined as a sum or as a product of the attenuation of the acoustic feedback path and the signal amplification in the hearing aid.
  • the attenuation of the acoustic feedback path can in particular be determined by means of an adaptive filter, or measured directly by means of a modulated test signal.
  • the first use situation is established by the wearer putting on a headgear, and / or a movement of the jaw of the wearer, and / or the wearer using a mobile phone near the hearing aid, and / or a sporty one Actuation of the carrier and / or a positioning of the carrier in the immediate vicinity of a spatial delimitation.
  • a hat, a cap and a headscarf are included as headgear.
  • the jaw movement can consist of a chewing movement or speaking.
  • a spatial delimitation here includes in particular a window and a wall. The positioning is not tied to the movement process, but a purely static situation in the vicinity of the boundary can also be used.
  • the first use situation if the first use situation is present, a cumulative presence of the above-mentioned conditions is possible, for example, in that a headgear has been removed for a telephone call that is beginning.
  • the mentioned possibilities for the first use situation cover a broad spectrum of situations that can occur in everyday life and in which an acoustic feedback path can in principle change.
  • the at least one hearing aid parameter is selected from an overall gain at a frequency and / or a compression characteristic curve at a frequency and / or a readjustment speed.
  • the compression characteristic curve at a frequency is defined here in particular by a compression ratio and a knee point.
  • an immediately surrounding frequency interval can also be included in the overall amplification at a frequency.
  • the at least one hearing aid parameter the overall gain or the compression characteristic curve in this interval, or also a readjustment speed of the adaptive filter, can now be adapted.
  • the hearing aid parameters mentioned are suitable, on the one hand, for suppressing acoustic feedback through appropriate adaptation. On the other hand, their adaptation in the hearing aid is technically possible without any additional effort, so that there is no unnecessary burden on the signal processing.
  • a second use situation is established for the first wearing situation, a second criticality measure being determined for the second use situation, the second criticality measure being used to specify an adjustment of the at least one hearing aid parameter and / or a further hearing aid parameter.
  • the second criticality measure for the second usage situation is determined in a manner analogous to the first criticality measure for the first usage situation. This allows the probability of feedback occurring for different processes to be assessed individually, and the adaptation of one or more hearing aid parameters to be specified as a function of the totality of the assessments.
  • the second usage situation is established by one of the processes mentioned for the first usage situation.
  • the at least one hearing aid parameter is adjusted according to the specification made using the first criticality measure, the hearing aid being operated with the adjusted hearing aid parameter in a test mode, the first use situation being established in the test mode, and the first use situation being set up in the test mode a third criticality measure is determined for, in particular, automatic checking of the adaptation.
  • the third criticality measure is preferably determined in the manner described above, that is to say in particular in a manner analogous to the first criticality measure, which ensures that the values can be compared at a given frequency.
  • test operation can also consist of a resumption of regular operation of the hearing aid, with the aforementioned checking of the hearing aid parameter adjusted on the basis of the first criticality measure initially taking place using the third criticality measure, and regular operation simply being continued in the event of a positive assessment of the checking, and in In the event of a negative evaluation of the review, further measures are proposed.
  • the test operation can, however, also be formed by an independent routine. In this case, the first usage situation is established within the framework of said routine, and the present setting of the hearing aid is checked by means of the third criticality measure, which setting comprises the adaptation of the at least one hearing aid parameter made on the basis of the first criticality measure.
  • a second wearing situation is established, the first use situation being established for the second wearing situation, a fourth criticality level being determined for the first use situation in the second carrying situation, and a specification with regard to the fourth criticality level being established a suitability of the second wearing situation for the operation of the hearing aid takes place.
  • the fourth criticality measure is preferably determined in the manner described above, in particular in a manner analogous to the first criticality measure and particularly preferably also to the third criticality measure, whereby the values of the first criticality measure and at least the fourth criticality measure, particularly preferably also the third criticality measure, can be compared is ensured at a given frequency.
  • Establishing a second wearing situation can be particularly advantageous if the probability of feedback occurring in the first use situation cannot be significantly reduced by adjusting the hearing aid parameters, and this is determined in particular by checking the adjustment using the third criticality measure.
  • a specification for changing the at least one hearing aid parameter can be made based on the first criticality measure, and this can be adapted accordingly under the secondary conditions that result from the requirements for the playback dynamics and volume for the wearer.
  • the first usage situation is then established in the test mode and the third criticality measure for the adjusted settings is determined. If it is found that feedback is still critically probable even after the settings have been adjusted, preferably within the audiologically acceptable framework, this is assessed as an indication of a mechanical problem in the broadest sense, i.e. a change in the wearing situation can be recoverable.
  • the fourth criticality measure On the basis of the fourth criticality measure, it is now checked in particular whether the settings already adjusted in the first step - on the basis of the first criticality measure - are suitable for regular operation of the hearing aid in the second wearing situation, i.e. in particular the likelihood of feedback - according to the criticality measure used as a criterion - is significantly reduced compared to the first wearing situation.
  • a specification is therefore preferably made on the basis of the fourth criticality measure with regard to the suitability of the second wearing situation for operating the hearing aid with the at least one hearing aid parameter adapted on the basis of the first criticality measure
  • the second wearing situation is expediently produced by correcting the position of an acoustic coupling piece of the hearing aid, and / or using an acoustic coupling piece with changed dimensions, and / or using an acoustic coupling piece with a modified ventilation opening.
  • An acoustic coupling piece here includes in particular an ear mold, a so-called “dome” and a so-called “earmould”.
  • the measures mentioned represent, on the one hand, frequent sources of error when putting the hearing aid in its regular wearing position; by the wearer himself or a person of trust, without a visit to a hearing aid acoustician being necessary - and no further, more complex interventions on the hearing aid are required.
  • the first wearing situation is produced in particular by simply putting on the hearing aid - in accordance with the present mechanical configuration - in the supposed wearing position.
  • At least the first wearing situation and the first usage situation are expediently recorded by means of a video recording system.
  • Acquisition by a video recording system can in particular enable a specialist, e.g. a hearing aid acoustician, to be omitted to reduce the likelihood of feedback, which is convenient for the wearer.
  • image data generated by the video recording system are transmitted to a video playback system spatially separated from the carrier and reproduced by the latter, and / or an automatic command for determining the number of frequency-resolved curves of a feedback tendency based on the image data generated by the video recording system Hearing aid is generated in the first use situation.
  • the automatic command can in particular be generated using facial or generally image recognition, which determines that the first usage situation has been properly established, e.g. by detecting a chewing or speaking movement of the jaw or the wearer bringing a mobile phone to the ear.
  • the video playback system can be arranged in a hearing aid acoustician's work rooms, while the wearer is at home in the detection area of the video recording system.
  • the wearer establishes the first use situation in the first wearing situation, e.g. by putting on a headgear or bringing a mobile phone to his ear.
  • the first usage situation can now be ended on the one hand by the expiry of a fixed period of time, or on the other hand it can be ended when the determined curves for the feedback tendency no longer exceed their own extreme values or envelopes for a certain measurement period.
  • the first criticality measure is now determined from the curves determined for the feedback tendency.
  • An adaptation of the at least one hearing aid parameter is now specified on the basis of the first criticality measure.
  • the adaptation itself can either be carried out by the wearer himself, by a person of trust of the wearer (in particular if the wearer is unable to do so himself), or via suitable remote access by the hearing aid acoustician.
  • the first usage situation can be established again in the test mode, and further curves of the feedback tendency can be determined, from which the third criticality measure is then determined.
  • the third criticality measure it is now checked whether the adjustment of the settings has sufficiently reduced the tendency for feedback. If this is not the case, the hearing aid acoustician can instruct the wearer to create the second wearing situation, the specific selection of the measure being made using the third and possibly also using the first criticality measure - for example, via courses characteristic of certain errors and in particular can be specified automatically. If a measure is specified as the establishment of the second wearing situation, which the wearer cannot carry out independently, the person they trust can establish the second wearing situation via the video monitoring system under the instruction of the hearing aid acoustician.
  • the first use situation is now established in the manner described above in response to a start signal, and a new series of measurements of the feedback tendency is carried out to determine the fourth criticality measure, on the basis of which the suitability of the second wearing situation for suppressing feedback is assessed.
  • the invention also refers to a hearing aid which is set up to carry out the method described above.
  • the hearing aid has means for detecting at least the attenuation of an acoustic feedback from an output transducer of the hearing aid to an input transducer.
  • the hearing aid preferably also has means for transmitting a signal amplification and the attenuation resulting from the acoustic feedback to an external detection unit.
  • parts of the method described above such as the determination of the first and further criticality measures and the corresponding specifications, can take place in the external recording unit.
  • the hearing aid preferably comprises means for calculating the first and further criticality measures.
  • a hearing aid 1 is shown schematically in a block diagram.
  • the input signal 6 is fed to a signal processor 8 in the hearing aid 1 and processed there in accordance with the audiological needs of the wearer of the hearing aid 1 and, in particular, is amplified as a function of the frequency band.
  • the output signal 10 resulting from the signal processing 8 is converted by an output transducer 12 of the hearing aid 1 into an output sound signal 14, which is passed to the hearing of the wearer of the hearing aid 1, which is not shown in detail.
  • the output transducer 14 is provided by a loudspeaker which is arranged in an acoustic coupling piece 15 of the hearing device 1.
  • the acoustic coupling piece is given as an ear mold.
  • part of the output sound signal 14 can now reach the input transducer 2 again, and thus find its way into the input signal 6, whereby a closed feedback loop is formed in which signal components are continuously amplified by the signal processing 8.
  • the amplification can now be reduced in signal processing 8 on the one hand.
  • this is also associated with a loss of amplification for other signal components not affected by the acoustic feedback, so that the signal processing 8 no longer works optimally in accordance with the audiological specifications of the wearer of the hearing aid 1.
  • the output signal 10 is often branched off and fed to an adaptive filter 18.
  • the signal resulting from this subtraction finds its way into the signal processing 8 on the one hand and is also fed to the adaptive filter as an error signal 22 on the other hand.
  • the adaptive filter 18 in particular the acoustic feedback path 16 or its frequency response is estimated.
  • the occurrence of acoustic feedback sometimes has predominantly mechanical causes, such as, for example, the acoustic coupling piece 15 of the hearing aid 1 not being optimally seated in the wearer's ear, as a result of which a particularly high proportion of the output sound signal 14 can escape and reach the input transducer 2 again.
  • Further causes, which are essentially mechanical, can depend on a specific usage situation such as a chewing or speaking movement or the influence of a mobile phone or other similar object in the vicinity of the hearing aid 1 on the acoustic feedback path 16.
  • the suppression of the feedback by the adaptive filter 18 with the risk of artifacts in the output signal 10 is not always effective.
  • a first wearing situation 30 is produced in which the wearer uses the hearing aid 1 after Figure 1 is applied regularly.
  • the first wearing situation 30 is characterized in particular by the global position of the hearing aid 1 relative to the wearer, and also by the use of individual, reversibly exchangeable components such as the acoustic coupling piece 15 and their positioning relative to the wearer.
  • a first use situation 32 is now produced, which is characterized by at least one body movement of the wearer and / or by an external object.
  • a plurality of frequency-resolved curves, 34a-c of a feedback tendency of the hearing aid are determined. This is done in that, for example, by repeating the movement that speaks of the first use situations, the measurement process for the feedback tendency is repeated, and over time a plurality of "screenshots" of the feedback tendency is generated over the frequency. From the frequency-resolved curves 34a-c of the feedback tendency, a first criticality measure 36 is generated in a manner still to be described, on the basis of which a specification 38 is made for an adaptation of at least one hearing aid parameter.
  • a second usage situation can also be produced in the first wearing situation 30, in which frequency-resolved curves follow a feedback tendency of the hearing aid 1 Figure 1 can be determined from which a second criticality measure is determined.
  • a specification for the adjustment of one or more hearing aid parameters can then also be made, the specification on the one hand being able to relate to the hearing aid parameter (s) 40 for which a specification 38 for adaptation is already made based on the first criticality measure 36.
  • the created on the basis of the second criticality measure Specification also relate to other hearing aid parameters for which no specification yet exists.
  • the hearing aid parameter 40 is now adapted in accordance with the specification 38 and possibly in accordance with a further specification created in a second use situation.
  • the hearing aid parameter 40 can be, for example, an overall gain at a specific frequency and / or a compression characteristic curve at a specific frequency, but also a parameter of the adaptive filter 18 Figure 1 , for example by a readjustment speed or a step size.
  • a test mode 42 is now started, in which the hearing device 1 is tested in the first use situation 32.
  • frequency-resolved curves 44a-c are determined for the feedback tendency of the hearing aid.
  • the frequency-resolved curves 44a-c are thus generated while the movement corresponding to the first usage situation is repeated in test mode 42.
  • a third criticality measure 46 is generated from the frequency-resolved curves 44a-c in a manner analogous to the first criticality measure 36. On the basis of the third criticality measure 46 it can now be determined whether the adaptation of the hearing device parameter 40 according to the specification 38 has significantly reduced the probability of an acoustic feedback occurring during the first use situation 32.
  • a second carrying situation 50 is suggested.
  • This can be, for example, a position correction of the acoustic coupling piece 15 of the hearing aid 1, or the use of an acoustic coupling piece with changed dimensions and / or a changed ventilation openings.
  • the wearer of the hearing aid 1 or a person of trust establishes the second wearing situation.
  • the first use situation is then established again for the second carrying situation 50 by means of the corresponding movement.
  • frequency-resolved curves 54a-c are determined for the feedback tendency, on the basis of which a fourth criticality measure 56 is determined.
  • the fourth criticality measure 56 can now It can be checked whether the specification made according to the first criticality measure 36 for the adaptation of the hearing device parameter 40 in the second wearing situation 50 is suitable for keeping the probability of the occurrence of acoustic feedback sufficiently low. If this is the case, the second carrying situation 50 can be identified as a carrying situation to be used from now on, for example by continuing to use an acoustic coupling piece that may have been replaced, or by continuously ensuring that it is properly inserted when the acoustic coupling piece is put on Penetrates the ear canal.
  • a third wearing situation (not shown in detail) can be produced in a manner analogous to the second wearing situation 50, or a visit to a hearing aid acoustician can be recommended as a "last resource" measure.
  • a feedback tendency 60 in dB is plotted against the frequency f.
  • the feedback tendency 60 which represents a measure of the probability of an acoustic feedback occurring, is formed here by following the attenuation 62 of the acoustic feedback path 16 Figure 1 (dashed line) the amplification 64 taking place in the signal processing 8 (dashed-dotted line) is added.
  • FIG 4 a plurality of frequency-resolved curves 60a-m for the feedback tendency is shown. These correspond, for example, to various individual measurements that were carried out during the first usage situation Figure 2 be performed. While the individual curves 60a-m hardly differ from one another in the frequency range up to approx. 3 kHz, and thus the variance of the various curve values is hardly significant at a given frequency, the curves 60a-m drift noticeably apart from 3 kHz upwards. A narrow frequency range around 6 kHz should be mentioned in particular, in which the individual curves differ in their values by up to 30 dB. From 7 kHz upwards, the course of the curves is again almost uniform.
  • a criticality measure 66 is now determined in a manner analogous to the first criticality measure 36, the third criticality measure 64 and the fourth criticality measure 56. This is done by adding a correction term to the maximum value 60m for the feedback tendency (dotted line) at each frequency f, which depends monotonically on the variance of the individual values of the curves 60a-m at a given frequency f. For the high variance, which is present at just below 6 kHz, the criticality measure 66 (dashed line) is maximum.
  • the criticality measure 66 is greater there than at 2 kHz. This takes into account the fact that the system is more stable over the entire range of possible values during the first use situation at 2 kHz than at 4 kHz, which is why it can be assumed that at 4 kHz the maximum value determined is not necessarily the absolutely possible Corresponds to the maximum value, while this is probably the case at 2 kHz due to the high stability.
  • the criticality level is correspondingly higher at 4 kHz.
  • Frequency ranges 68 can now be identified from the criticality measure 66, for which the occurrence of acoustic feedback in the relevant usage situation is particularly likely and is to be adapted in accordance with a hearing aid parameter.
  • the exceeding of a threshold value by the criticality measure 66 can be used as a criterion, whereby 0 dB - that is to say the limit for a critical gain - can be selected as the threshold value in a first approximation

Landscapes

  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Otolaryngology (AREA)
  • Neurosurgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Claims (11)

  1. Procédé pour réduire de l'occurrence d'une rétroaction acoustique dans un appareil auditif (1),
    dans lequel une première situation de port (30) est établie, qui détermine un positionnement de l'appareil auditif (1) par rapport au porteur,
    dans lequel, pour la première situation de port (30), une première situation d'utilisation (32) est établie, qui est caractérisée par au moins un mouvement du corps du porteur de l'appareil auditif (1) et/ou au moins une position relative d'un objet externe par rapport au corps du porteur, dans lequel, pour la première situation d'utilisation (32), une pluralité de courbes résolues en fréquence (34a-c) d'une tendance à la rétroaction (60) de l'appareil auditif (1) est déterminée,
    dans lequel une première mesure de criticité (36) est déterminée sur la base de la courbe résolue en fréquence (34a-c) pour la première situation d'utilisation (32), ladite mesure de criticité (36) contenant des informations sur une gamme de fréquences critiques (68) par rapport à une occurrence d'une rétroaction acoustique et une probabilité relative correspondante d'une occurrence d'une rétroaction acoustique,
    dans lequel, pour une fréquence donnée, la première mesure de criticité (36) pour la première situation d'utilisation (32) est formée sur la base d'une mesure de dispersion pour les valeurs de la tendance à la rétroaction (60) à cette fréquence dont chacune résulte de la pluralité de courbes résolues en fréquence (34a-c),
    dans lequel une deuxième situation d'utilisation est établie pour la première situation de port (30),
    dans lequel une deuxième mesure de criticité est déterminée pour la deuxième situation d'utilisation d'une manière analogue à la première mesure de criticité pour la première situation d'utilisation, et
    dans lequel une spécification (38) pour l'adaptation d'au moins un paramètre d'appareil auditif (40) est effectuée sur la base de la totalité de la première mesure de criticité (36) et de la deuxième mesure de criticité.
  2. Procédé selon la revendication 1,
    dans lequel une atténuation (62) d'un chemin de rétroaction acoustique (16) est mesurée, et
    dans lequel la tendance à la rétroaction (60) à une fréquence donnée est respectivement déterminée sur la base d'une amplification du signal dans l'appareil auditif (1) et sur la base de l'atténuation (62) du chemin de rétroaction acoustique (16).
  3. Procédé selon l'une des revendications précédentes,
    dans lequel la première situation d'utilisation (32) est établie par
    - la mise en place d'un couvre-chef par le porteur, et/ou
    - un mouvement de la mâchoire du porteur, et/ou
    - l'utilisation d'un téléphone mobile à proximité de l'appareil auditif (1) par le porteur, et/ou
    - une activité sportive du porteur, et/ou
    - un positionnement de la porteuse à proximité immédiate d'une limite spatiale.
  4. Procédé selon l'une des revendications précédentes,
    dans lequel le au moins un paramètre d'appareil auditif (40) est sélectionné parmi
    - une amplification totale à une fréquence, et/ou
    - une courbe caractéristique de compression à une fréquence, et/ou
    - une vitesse de réajustement.
  5. Procédé selon l'une des revendications précédentes,
    dans lequel le au moins un paramètre d'appareil auditif (40) est ajusté selon la spécification (38) effectuée en utilisant la première mesure de criticité (36),
    dans lequel l'appareil auditif (1) fonctionne avec le paramètre d'appareil auditif ajusté (40) dans un mode de fonctionnement de test (42),
    dans lequel, dans le mode de fonctionnement de test (42), la première situation d'utilisation (32) est établie, et
    dans lequel une troisième mesure de criticité (46) pour surveiller l'adaptation est déterminée pour la première situation d'utilisation (32) dans le mode de test.
  6. Procédé selon l'une des revendications précédentes,
    dans lequel une deuxième situation de port (50) est établie,
    dans lequel la première situation d'utilisation (32) est établie pour la deuxième situation de port (50),
    dans lequel une quatrième mesure de criticité (56) est déterminée pour la première situation d'utilisation (32) dans la deuxième situation de port (50), et
    dans lequel, sur la base de la quatrième mesure de criticité (56), une spécification est effectuée en ce qui concerne une aptitude de la deuxième situation de port (50) pour le fonctionnement de l'appareil auditif (1).
  7. Procédé selon la revendication 5 ou la revendication 6,
    dans lequel, sur la base de la quatrième mesure de criticité (56), une spécification est effectuée en ce qui concerne une aptitude de la deuxième situation de port (50) pour le fonctionnement de l'appareil auditif (1) avec le au moins un paramètre d'appareil auditif (40) adapté sur la base de la première mesure de criticité (36).
  8. Procédé selon la revendication 6 ou la revendication 7,
    dans lequel la deuxième situation de port (50) est établie par
    - une correction de la position d'une pièce de couplage acoustique (15) de l'appareil auditif (1), et/ou
    - une utilisation d'une pièce de couplage acoustique (15) à dimensions modifiées, et/ou
    - une utilisation d'une pièce de couplage acoustique (15) avec une ouverture de ventilation modifiée.
  9. Procédé selon l'une des revendications précédentes,
    dans lequel au moins la première situation de port (30) et la première situation d'utilisation (32) sont enregistrées au moyen d'un système d'enregistrement vidéo.
  10. Procédé selon la revendication 9,
    dans lequel les données d'image générées par le système d'enregistrement vidéo sont transmises à un système de reproduction vidéo séparé spatialement du porteur, et reproduites par ce dernier, et/ou
    dans lequel une commande automatique pour déterminer le nombre de courbes résolues en fréquence (34a-c, 44a-c, 54a-c, 60a-m) d'une tendance à la rétroaction (60) de l'appareil auditif (1) dans la première situation d'utilisation (32) est générée sur la base des données d'image générées par le système d'enregistrement vidéo.
  11. Appareil auditif (1) adapté pour mettre en place le procédé selon l'une des revendications précédentes.
EP19174570.2A 2018-05-30 2019-05-15 Procédé de réduction de la présence d'une rétroaction acoustique dans un appareil auditif Active EP3576433B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018208657.5A DE102018208657B3 (de) 2018-05-30 2018-05-30 Verfahren zur Verringerung eines Auftretens einer akustischen Rückkopplung in einem Hörgerät

Publications (2)

Publication Number Publication Date
EP3576433A1 EP3576433A1 (fr) 2019-12-04
EP3576433B1 true EP3576433B1 (fr) 2021-08-11

Family

ID=66554227

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19174570.2A Active EP3576433B1 (fr) 2018-05-30 2019-05-15 Procédé de réduction de la présence d'une rétroaction acoustique dans un appareil auditif

Country Status (5)

Country Link
US (1) US10873817B2 (fr)
EP (1) EP3576433B1 (fr)
CN (1) CN110557708B (fr)
DE (1) DE102018208657B3 (fr)
DK (1) DK3576433T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10681458B2 (en) * 2018-06-11 2020-06-09 Cirrus Logic, Inc. Techniques for howling detection
EP4021017A1 (fr) * 2020-12-28 2022-06-29 Oticon A/s Prothèse auditive comprenant un système de commande de rétroaction

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7664275B2 (en) * 2005-07-22 2010-02-16 Gables Engineering, Inc. Acoustic feedback cancellation system
DK2003928T3 (en) * 2007-06-12 2019-01-28 Oticon As Online anti-feedback system for a hearing aid
EP2046073B1 (fr) * 2007-10-03 2017-03-08 Oticon A/S Système d'assistance auditive avec agencement de réponse pour prédire et annuler la réponse acoustique, procédé et utilisation
DK2217007T3 (da) * 2009-02-06 2014-08-18 Oticon As Høreapparat med adaptiv tilbagekoblingsundertrykkelse
DE102009016845B3 (de) * 2009-04-08 2010-08-05 Siemens Medical Instruments Pte. Ltd. Anordnung und Verfahren zur Erkennung von Rückkopplungen bei Hörvorrichtungen
US8553897B2 (en) * 2009-06-09 2013-10-08 Dean Robert Gary Anderson Method and apparatus for directional acoustic fitting of hearing aids
US8355517B1 (en) * 2009-09-30 2013-01-15 Intricon Corporation Hearing aid circuit with feedback transition adjustment
EP2486537A4 (fr) * 2009-10-07 2013-08-21 John T Mcelveen Système pour la surveillance et la modulation à distance d'appareils médicaux
US9729976B2 (en) * 2009-12-22 2017-08-08 Starkey Laboratories, Inc. Acoustic feedback event monitoring system for hearing assistance devices
DE102010011729A1 (de) 2010-03-17 2011-09-22 Siemens Medical Instruments Pte. Ltd. Hörvorrichtung und Verfahren zum Einstellen derselben für einen rückkopplungsfreien Betrieb
US9654885B2 (en) * 2010-04-13 2017-05-16 Starkey Laboratories, Inc. Methods and apparatus for allocating feedback cancellation resources for hearing assistance devices
GB201021912D0 (en) * 2010-12-23 2011-02-02 Soundchip Sa Noise Reducing Earphone
EP2670168A1 (fr) * 2012-06-01 2013-12-04 Starkey Laboratories, Inc. Dispositif d'assistance auditive adaptatif utilisant la détection et la classification d'environnement multiple
EP2677770B1 (fr) * 2012-06-21 2015-07-29 Oticon A/s Prothèse auditive comprenant une alarme de rétroaction
US9148735B2 (en) * 2012-12-28 2015-09-29 Gn Resound A/S Hearing aid with improved localization
US9332359B2 (en) * 2013-01-11 2016-05-03 Starkey Laboratories, Inc. Customization of adaptive directionality for hearing aids using a portable device
US9635479B2 (en) * 2013-03-15 2017-04-25 Cochlear Limited Hearing prosthesis fitting incorporating feedback determination
US9094769B2 (en) * 2013-06-27 2015-07-28 Gn Resound A/S Hearing aid operating in dependence of position
DK2869600T3 (en) * 2013-11-05 2017-02-06 Gn Resound As Adaptive suppression of residual feedback
EP2908549A1 (fr) 2014-02-13 2015-08-19 Oticon A/s Dispositif de prothèse auditive comprenant un élément de capteur
DK2988529T3 (da) * 2014-08-20 2020-02-24 Sivantos Pte Ltd Adaptiv opdelingsfrekvens i hørehjælpeapparater
EP3413589B1 (fr) * 2017-06-09 2022-11-16 Oticon A/s Système de microphone et appareil auditif le comprenant

Also Published As

Publication number Publication date
DK3576433T3 (da) 2021-11-08
CN110557708A (zh) 2019-12-10
EP3576433A1 (fr) 2019-12-04
CN110557708B (zh) 2021-10-22
US20190373379A1 (en) 2019-12-05
DE102018208657B3 (de) 2019-09-26
US10873817B2 (en) 2020-12-22

Similar Documents

Publication Publication Date Title
EP3222057B1 (fr) Procédé et dispositif de détection rapide de la voix naturelle
DE102005020317B4 (de) Automatische Verstärkungseinstellung bei einem Hörhilfegerät
DE69933141T2 (de) Tonprozessor zur adaptiven dynamikbereichsverbesserung
EP3068146B1 (fr) Procede de fonctionnement d'un appareil auditif et appareil auditif
EP3266222B1 (fr) Dispositif et procédé pour l'excitation des compresseurs dynamiques d'un appareil auditif binaural
DE102015216822B4 (de) Verfahren zur Unterdrückung einer Rückkopplung in einem Hörgerät
DE3229457C2 (de) Hörhilfegerät
DE102007037659B4 (de) Verfahren zum Betrieb eines Hörgerätesystems und Hörgerätesystem
EP3576433B1 (fr) Procédé de réduction de la présence d'une rétroaction acoustique dans un appareil auditif
EP3793209B1 (fr) Appareil auditif avec annulation active du bruit et procédé de fonctionnement de lequel
DE102009010892A1 (de) Vorrichtung und Verfahren zur Reduzierung von Trittschallwirkungen bei Hörvorrichtungen mit aktiver Okklusionsreduktion
EP3337189A1 (fr) Procédé de détermination de direction d'une source de signal
EP3393143B1 (fr) Procédé de fonctionnement d'une aide auditive
EP3275211B1 (fr) Procédé de fonctionnement d'un système électroacoustique et un système électroacoustique
EP3951780B1 (fr) Procédé de fonctionnement d'un appareil auditif et appareil auditif
EP3373599B1 (fr) Procédé d'ajustement fréquentiel d'un signal audio et dispositif auditif fonctionnant selon ledit procédé
EP3355592A1 (fr) Procédé de fonctionnement d'un système pour appareils de correction auditive binaural
EP1351550B1 (fr) Procédé d'adaptation d'une amplification de signal dans une prothèse auditive et prothèse auditive
DE102019211943B4 (de) Verfahren zur direktionalen Signalverarbeitung für ein Hörgerät
EP4158901A1 (fr) Procédé, dispositif, casque d'écoute et programme informatique pour supprimer activement l'effet d'occlusion pendant la lecture de signaux audio
EP3793217A1 (fr) Appareil auditif avec annulation active du bruit et procédé de fonctionnement de lequel
EP4187928A1 (fr) Procédé de fonctionnement d'un instrument auditif
WO2023104865A1 (fr) Dispositif de suppression de bruit et/ou de suppression d'occlusion actives, procédé correspondant, et programme informatique
EP3796676A1 (fr) Procédé de fonctionnement d'un appareil auditif et appareil auditif

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20200603

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20210311

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502019001995

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

Ref country code: AT

Ref legal event code: REF

Ref document number: 1420628

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210915

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

Effective date: 20211102

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20210811

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210811

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210811

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210811

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210811

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210811

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211111

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210811

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211213

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211111

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210811

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210811

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211112

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210811

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502019001995

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210811

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210811

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210811

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210811

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210811

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210811

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20220512

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210811

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210811

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20220531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210811

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220515

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220515

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220531

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230517

Year of fee payment: 5

Ref country code: DK

Payment date: 20230522

Year of fee payment: 5

Ref country code: DE

Payment date: 20230519

Year of fee payment: 5

Ref country code: CH

Payment date: 20230605

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20230522

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210811

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210811

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20190515