EP0814634A1 - Programmable hearing-aid system and method for determining an optimal set of parameters in an acoustic prosthesis - Google Patents

Programmable hearing-aid system and method for determining an optimal set of parameters in an acoustic prosthesis Download PDF

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Publication number
EP0814634A1
EP0814634A1 EP96110067A EP96110067A EP0814634A1 EP 0814634 A1 EP0814634 A1 EP 0814634A1 EP 96110067 A EP96110067 A EP 96110067A EP 96110067 A EP96110067 A EP 96110067A EP 0814634 A1 EP0814634 A1 EP 0814634A1
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EP
European Patent Office
Prior art keywords
hearing aid
hearing
memory
situation
control module
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.)
Granted
Application number
EP96110067A
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German (de)
French (fr)
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EP0814634B1 (en
Inventor
Inga Dr.Rer.Nat. Holube
Oliver Dipl.-Ing. Weinfurtner
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Sivantos GmbH
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Siemens Audioligische Technik GmbH
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Application filed by Siemens Audioligische Technik GmbH filed Critical Siemens Audioligische Technik GmbH
Priority to DK96110067T priority Critical patent/DK0814634T3/en
Priority to EP96110067A priority patent/EP0814634B1/en
Priority to DE59609754T priority patent/DE59609754D1/en
Priority to US08/874,456 priority patent/US6035050A/en
Publication of EP0814634A1 publication Critical patent/EP0814634A1/en
Application granted granted Critical
Publication of EP0814634B1 publication Critical patent/EP0814634B1/en
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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
    • H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
    • H04R25/505—Customised settings for obtaining desired overall acoustical characteristics using digital signal processing
    • H04R25/507—Customised settings for obtaining desired overall acoustical characteristics using digital signal processing implemented by neural network or fuzzy logic
    • 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
    • H04R2225/39—Aspects relating to automatic logging of sound environment parameters and the performance of the hearing aid during use, e.g. histogram logging, or of user selected programs or settings in the hearing aid, e.g. usage logging
    • 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
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/55—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired
    • H04R25/558—Remote control, e.g. of amplification, frequency
    • 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
    • H04R25/70—Adaptation of deaf aid to hearing loss, e.g. initial electronic fitting

Definitions

  • the invention relates to a programmable hearing aid system according to the preamble of claim 1 and a method for determining optimal parameter sets in a hearing aid device.
  • a programmable hearing aid device generally stores a plurality of parameter sets, so-called hearing programs, which can be selected by the user.
  • Each of these parameter sets represents the sensibly coordinated setting of all signal processing parameters for a specific acoustic hearing or environmental situation (for example an environmental situation "at rest", that is to say without disturbing background noise, or an environmental situation with low-frequency background noise, etc.).
  • the hearing aid wearer can select the appropriate hearing program.
  • Such a programmable hearing aid which has the features mentioned in the preamble of claim 1, is known from EP-B-0 064 042.
  • the hearing aid device has a microphone, a receiver, a signal processor and a parameter memory. Up to eight parameter sets can be written into the memory using an external programming device. By pressing a switch, the stored parameter sets are called up one after the other and transferred to the signal processor. This enables the user to optimally match the signal transmission function of the signal processor to the respective listening situation.
  • the parameter set assigned to each hearing situation is determined when the hearing aid is adapted, that is to say by the hearing care professional.
  • the optimal one To set a parameter set for different acoustic environmental situations of the hearing impaired, since their actual acoustic parameters ultimately depend on individual circumstances. If, for example, a hearing aid wearer needs a hearing program “in the car” because he himself travels a lot in his own car, an optimal setting of the parameters for this program must be based on the acoustic parameters of his car, which in turn are strongly dependent on the car type and other factors .
  • an external control device is provided in the hearing aid system disclosed in EP-B-0 453 450 which calculates the signal processing parameters to be set in a complicated process from audiometric data and from data characterizing the environmental situation.
  • this process is complex and does not always determine an optimal parameter set.
  • Another difficulty with the two methods mentioned for determining parameter sets consists in the fact that even with the same (with the aid of a sound threshold audiogram) hearing damage, the subjective sensations of the hearing device wearer are different under the same acoustic ambient conditions and lead to different optimal parameter sets.
  • the object of the invention is accordingly to avoid the aforementioned problems of the prior art and, in particular, to simplify the setting of individually optimally adapted parameter sets for different hearing situations in a hearing aid device, or often to enable them in practice.
  • the object is achieved by a hearing aid system of the type mentioned at the outset, which is further developed in accordance with the characterizing features of claim 1, and by a method having the steps mentioned in claim 11.
  • the invention is based on the basic idea of not defining the parameter set of a programmable hearing aid device assigned to each hearing situation when the hearing care professional is adapting it, but initially to provide several test parameter sets for each hearing situation. In an optimization phase, the hearing aid wearer can then determine which parameter set is best suited for him in the individual hearing situations. This parameter set is then permanently assigned to the listening situation.
  • An advantage of the solution according to the invention is that the adaptation of the hearing aid to the different listening situations is better than in the conventional procedure, since it is individually tailored to the real acoustic environmental conditions of the personal areas of life of the hearing impaired. In addition, the adjustment can largely be carried out by the hearing aid wearer himself, so that it is less expensive.
  • the evaluation of the assignment data stored in the second memory of the adaptation device during the adaptation phase is preferably carried out either in an external evaluation computer or in the control module.
  • the assignment data can also be continuously monitored, for example in order to determine whether an optimal test parameter set is not available for a hearing situation and therefore the hearing care professional must be consulted to program new test parameter sets.
  • the adaptation device generates new parameter sets according to predetermined rules.
  • the hearing aid device has a neural structure and a comparison and training circuit.
  • the neural structure continuously evaluates acoustic input signals.
  • the comparison and training circuit can the neural structure according to the during to train selected parameter sets for each listening situation in a training phase. After completion of the training phase, the neural structure independently determines suitable signal processing parameters from the input signals, so that the hearing aid user no longer even has to state the current hearing situation.
  • FIG. 1 shows the outline of an ear with a hearing aid 10 to be worn behind the ear, onto which an additional module 20 is detachably attached.
  • the hearing aid 10 and the additional module 20 are electrically connected to one another via contact surfaces. Via this connection, parameter sets can be placed in the hearing aid 10 can be programmed, which determine the characteristics of the signal processing in the hearing aid device 10.
  • the additional module 20 is able to exchange data with an external control module 40 via a wireless data transmission connection 24.
  • FIG. 2 shows, as a modification of the hearing aid system shown in FIG. 1, a hearing aid device 10 'to be worn in the ear, which is electrically connected via a connecting line 12 to the additional module 20 to be worn behind the ear.
  • the connecting line 12 is detachably connected to the hearing aid device 10 'by means of connecting elements (plug / socket, etc.) known per se, such as are used, for example, for the wired programming of hearing aid devices.
  • FIG. 3 shows in particular the operating and display elements of the external control module 40, which is configured similarly to a remote control.
  • a display device 42 for example in the form of an alphanumeric LCD display, is used for user guidance.
  • the set hearing situation can be displayed in a first line and the respectively assigned parameter set can be displayed in a second line.
  • Other texts that have been programmed during the programming of the control module 40 can also be displayed.
  • An input device 44 designed as a keyboard has several keys, in particular keys 48 for setting the hearing situation, keys 50 for assigning a parameter set to the hearing situation, a key 52 for confirming and a key 54 for correcting incorrect entries.
  • keys 48 for setting the hearing situation
  • keys 50 for assigning a parameter set to the hearing situation
  • a key 52 for confirming and a key 54 for correcting incorrect entries.
  • buttons for a maximum of four listening situations each with a maximum of four experimental parameter sets.
  • the additional module 20 shown in FIG. 4 has an interface 22 for bidirectional data transmission to the hearing aid device 10 or 10 ′ via contacts or via the electrical connecting line 12.
  • a data transmission interface 26 formed by an infrared light-emitting diode and a photo sensor serves to provide the bidirectional data transmission connection 24 to the external control module 40.
  • the data transmission connection 24 is preferably wireless. Visible or infrared light, high-frequency radio waves, ultrasound, electrical induction and so on can serve as the medium.
  • the interfaces 22 and / or 26 can also be made simpler than unidirectional interfaces, which are able to transmit parameter sets only in the direction of the hearing aid device 10 or 10 '.
  • the interfaces 22 and 26 are connected to one another and to a control and processing device 30.
  • the latter is able to access several read-only memories and / or read / write memories, in particular a first memory 32 for the test parameter sets and a second memory 34 for the assignments made by the user during the optimization phase.
  • a module 36 for generating a possibly required programming voltage for the hearing aid device 10 or 10 ′ and a power supply module 38 are provided.
  • the module 36 is connected to the connecting line 12 and is controlled by the control and processing device 30.
  • the power supply module 38 feeds all of the components mentioned and is also connected to the hearing aid device 10 or 10 ′ via the connecting line 12.
  • the additional module 20 is shown in FIG. 4 in an embodiment with full functionality. In other embodiments, in which some functions are taken over by the control module 40, for example, assemblies can be omitted.
  • the first and second memory need 32 and 34 only to be provided either in the additional module 20 or in the control module 40.
  • the control and processing device 30 can then be made simpler or can even be omitted entirely.
  • FIG. 5 shows the structure of the external control module 40.
  • the display and input devices 42 and 44 already described in connection with FIG. 3 are connected to a control and processing device 46 to which a first and a second memory 60 and 62, a computer interface 64 and a data transmission interface 68 are connected to the additional module 20. Furthermore, a power supply module 70 is provided for the modules mentioned.
  • the computer interface 64 is connected to a connection 66 for an external evaluation computer. Via the computer interface 64, on the one hand, before the start of the optimization phase, test parameter sets can be transmitted from the evaluation computer to the control module 40 and, on the other hand, after the optimization phase has ended, assignment data can be transmitted from the control module 40 to the evaluation computer.
  • the control module 40 is also shown in FIG. 5 in one embodiment with full functionality. Depending on the distribution of the functions of the adaptation device to the additional module 20 and the control module 40, individual assemblies can be omitted or simplified.
  • the computer interface 64 can be omitted if the test parameter sets are input via the input device 44 and the evaluation of the assignment data is carried out by the control and processing device 46.
  • the control and processing device 46 can be set up to generate new or modified test parameter sets according to programmed or fixed rules.
  • FIG. 6 shows the circuit of a complex hearing aid device 10 or 10 ′, which is described in more detail below.
  • a hearing aid device 10 or 10 ' is sufficient, in which of the components shown in FIG. 6, only an input transducer 14 designed as a microphone, an output transducer 18 designed as a receiver, a signal processing device 16 with a parameter determined Transmission characteristics, a memory 80 for at least one parameter set of the signal processing device 16 and an interface 90 to the matching device are provided.
  • the interface 90 is connected to the additional module 20 via the electrical connecting line 12.
  • the hearing care professional first determines for which hearing situations the hearing device wearer wants to determine the parameter sets (also referred to as hearing programs) individually. Examples of listening situations can be: “At work”, “Conversation situation in the car”, “Listening to music at home” and so on. For each of these hearing situations, a number of test parameter sets are determined with the aid of an adaptation software running on the external evaluation computer in accordance with the hearing damage of the hearing device wearer.
  • the determined parameter sets are transmitted to the control module 40 via the computer interface 64 and either stored there in the first memory 60 or further transmitted via the data transmission connection 24 to the additional module 20 and stored in its first memory 32.
  • the control module 40 and the mobile additional module 20 are made available to the hearing impaired. If the hearing impaired person is in a hearing situation that is typical for him, he can use the control module 40 first select the listening situation using the buttons 48 and then activate one of the test parameter sets assigned to it using the buttons 50. This is now transmitted from the control module 40 to the mobile additional module 20, programmed by the latter into the hearing aid device 10 or 10 ′ and activated there. If the hearing impaired person has found the optimal parameter set for the selected hearing situation, he can save this by pressing the confirmation key 52. This means that it is noted in the second memory 62 of the control module 40 (or in the second memory 34 of the additional module 20) that this parameter set has been assigned to the set listening situation.
  • the second memory 62 of the control module 40 (or the second memory 34 of the additional module 20) is read out by the hearing care professional and it is determined which assignment of hearing situations to parameter sets has been made and how often.
  • the parameter set with the most frequent assignment for each hearing situation is stored as a corresponding hearing program in the hearing aid device 10 or 10 '.
  • the control module 40 can also serve as a normal remote control of the hearing aid device 10 or 10' after the optimization phase has ended.
  • the adjustment functions are then deactivated.
  • the parameter sets determined in the optimization phase can remain stored in the control module 40, which now acts as a remote control. All that is needed is the currently required parameter set for the hearing aid 10 or 10 'to be transferred, so that the latter only has to have a memory 80 for a single parameter set.
  • the corresponding parameter sets can be modified with the aid of the adaptation software and stored again in the control module 40.
  • the optimal assignment can now be determined again.
  • the assignments of listening situations to experimental parameter sets are evaluated during the optimization phase in control module 40. Insignificant significance of the assignments of experimental parameter sets to a specific listening situation is interpreted to mean that an optimal trial is not carried out for this listening situation Parameter set is present.
  • the hearing device wearer is then asked via the display device 42 to visit his hearing device acoustician in order to have new test parameter sets programmed.
  • these new test parameter sets can also be generated in the control module 40 according to predefined or programmable rules.
  • the hearing aid device 10 or 10 ′ is designed according to FIG. 6.
  • this hearing aid device 10 or 10 ′ has a neural structure 82, also referred to as a neural network, a memory 84 for parameters of the neural structure 82, a signal conditioning device 86 and a comparison and training circuit 88.
  • the signal processing device 86 is connected to the signal processing device 16 at a suitable tapping point and supplies the neural structure 82 with suitably prepared signals which correspond to those of the Input converter 14 correspond to recorded acoustic information.
  • Memory 84 contains parameters that control the output behavior of neural structure 82. It is connected to the neural structure 82 and the comparison and training circuit 88.
  • the comparison and training circuit 88 controls the neural structure 82, the memory 84 for the neural structure 82 and the memory 80 for parameter sets.
  • the outputs of the memory 80 or the neural structure 82 are connected to the comparison and training circuit 88 and to a parameter input of the signal processing device 16, via which the transmission characteristic of the signal processing device 16 can be set.
  • the comparison and training circuit 88 determines, inter alia, whether the outputs of the neural structure 82, the parameters stored in the memory 80 or a mixture of both are used to control the signal processing device 16.
  • a hearing aid 10 or 10 ' is known from EP-A-0 712 263 (file number 94 117 797.4, filed on November 10, 1994), in which parameters controlling the signal processing are determined by a neural structure.
  • the content of EP-A-0 712 263 is expressly included in the present description, in particular with regard to the structure of the signal processing device 86 disclosed there (see FIG. 3 of EP-A-0 712 263 with the associated description) and the neural Structure 82 (see Figures 4 to 8 of EP-A-0 712 263 with the associated description).
  • the aforementioned publication does not specify how the training of the neural structure 82 can take place.
  • the training of the neural structure 82 and thus the programming of the Hearing aid system first set experimental parameter sets.
  • the user informs the hearing aid device 10 or 10 'in the manner described above via the interface 90 of the parameter set which is perceived as optimal for the current hearing situation. This is written into the memory 80.
  • the neural structure 82 calculates a proposed parameter set from the data coming from the signal conditioning device 86.
  • the comparison and training circuit 88 continuously compares the parameter set which the user perceives as optimal and which is written into the memory 80, with the parameter set determined by the neural structure 82. Error information is obtained from the deviations of these parameter sets according to a predetermined algorithm (e.g. a learning algorithm for neural networks according to the prior art). Based on this error information, the comparison and training circuit 88 modifies the parameters for the neural structure 82 contained in the memory 84. In this way, the neural structure 82 is trained during the optimization phase until it can determine suitable parameter sets for all acoustic environmental conditions alone with satisfactory accuracy .
  • a predetermined algorithm e.g. a learning algorithm for neural networks according to the prior art
  • the signal processing device 16 receives its control parameters exclusively from the memory 80 for the parameter set entered by the user, then progressively from the neural structure 82 as the training progresses. After the training phase has ended, it receives its control parameters only from the neuronal structure Structure 82. The fitting device is then no longer required by the hearing aid wearer.

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Abstract

The system has a hearing aid device (10) and an adaptor device. The hearing aid (10) has an input convertor and an output convertor. It also has a signal processor device with adjustable operating parameters. A memory is provided for at least one parameter set provided for a particular hearing situation, for the signal processor device. An interface is provided between the hearing aid and the adaptor device. The adaptor device has a first memory for several selectable parameter sets for each of several hearing situations. An input device is provided to select a current situation and one of the sets of parameters for this situation. A second memory stores allocation data for the selectable parameter sets for each situation. The adaptor also has an interface to the hearing aid. The adaptor also has a control and processing device.

Description

Die Erfindung betrifft ein programmierbares Hörgerätesystem nach dem Oberbegriff des Anspruchs 1 sowie ein Verfahren zur Ermittlung optimaler Parametersätze bei einem Hörhilfegerät.The invention relates to a programmable hearing aid system according to the preamble of claim 1 and a method for determining optimal parameter sets in a hearing aid device.

In einem programmierbaren Hörhilfegerät werden im allgemeinen mehrere vom Benutzer wählbare Parametersätze, sogenannte Hörprogramme, abgespeichert. Jeder dieser Parametersätze stellt die sinnvoll aufeinander abgestimmte Einstellung aller Signalverarbeitungsparameter für eine bestimmte akustische Hör- oder Umgebungssituation dar (zum Beispiel eine Umgebungssituation "in Ruhe", also ohne störendes Hintergrundgeräusch, oder eine Umgebungssituation mit tieffreqentem Störgeräusch etc.). Der Hörgeräteträger kann das jeweils passende Hörprogramm auswählen.A programmable hearing aid device generally stores a plurality of parameter sets, so-called hearing programs, which can be selected by the user. Each of these parameter sets represents the sensibly coordinated setting of all signal processing parameters for a specific acoustic hearing or environmental situation (for example an environmental situation "at rest", that is to say without disturbing background noise, or an environmental situation with low-frequency background noise, etc.). The hearing aid wearer can select the appropriate hearing program.

Ein derartiges programmierbares Hörhilfegerät, das die im Oberbegriff von Anspruch 1 genannten Merkmale aufweist, ist aus der EP-B-0 064 042 bekannt. Das Hörhilfegerät weist ein Mikrofon, einen Hörer, einen Signalprozessor und einen Parameterspeicher auf. Bis zu acht Parametersätze können mittels einer externen Programmiereinrichtung in den Speicher eingeschrieben werden. Durch Betätigen eines Schalters werden die gespeicherten Parametersätze reihum nacheinander abgerufen und an den Signalprozessor übertragen. Damit kann der Benutzer die Signalübertragungsfunktion des Signalprozessors optimal auf die jeweilige Hörsituation abstimmen.Such a programmable hearing aid, which has the features mentioned in the preamble of claim 1, is known from EP-B-0 064 042. The hearing aid device has a microphone, a receiver, a signal processor and a parameter memory. Up to eight parameter sets can be written into the memory using an external programming device. By pressing a switch, the stored parameter sets are called up one after the other and transferred to the signal processor. This enables the user to optimally match the signal transmission function of the signal processor to the respective listening situation.

Bei diesem bekannten Hörgerätesystem wird der jeder Hörsituation zugeordnete Parametersatz bei der Anpassung des Hörhilfegeräts, d.h. beim Hörgeräteakustiker festgelegt. Dabei besteht jedoch das Problem, daß es schwierig ist, den optimalen Parametersatz für unterschiedliche akustische Umgebungssituationen des Schwerhörigen festzulegen, da deren wirkliche akustische Kenngrößen letztlich von individuellen Gegebenheiten abhängig sind. Benötigt beispielsweise ein Hörgeräteträger ein Hörprogramm "im Auto", weil er selbst viel im eigenen Auto unterwegs ist, so muß eine optimale Einstellung der Parameter für dieses Programm von den akustischen Kenngrößen seines Autos ausgehen, die wiederum stark vom Autotyp und von anderen Faktoren abhängig sind.In this known hearing aid system, the parameter set assigned to each hearing situation is determined when the hearing aid is adapted, that is to say by the hearing care professional. However, there is a problem that it is difficult to find the optimal one To set a parameter set for different acoustic environmental situations of the hearing impaired, since their actual acoustic parameters ultimately depend on individual circumstances. If, for example, a hearing aid wearer needs a hearing program “in the car” because he himself travels a lot in his own car, an optimal setting of the parameters for this program must be based on the acoustic parameters of his car, which in turn are strongly dependent on the car type and other factors .

Um das komplizierte Ermitteln eines passenden Parametersatzes durch den Hörgeräteakustiker zu vermeiden, ist bei dem in der EP-B-0 453 450 offenbarten Hörgerätesystem ein externes Steuergerät vorgesehen, das einzustellende Signalverarbeitungsparameter in einem komplizierten Verfahren aus audiometrischen Daten und aus die Umgebungssituation kennzeichnenden Daten errechnet. Dieses Verfahren ist jedoch aufwendig und bestimmt nicht immer einen optimalen Parametersatz.In order to avoid the complicated determination of a suitable parameter set by the hearing aid acoustician, an external control device is provided in the hearing aid system disclosed in EP-B-0 453 450 which calculates the signal processing parameters to be set in a complicated process from audiometric data and from data characterizing the environmental situation. However, this process is complex and does not always determine an optimal parameter set.

Eine weitere Schwierigkeit bei den beiden genannten Verfahren zum Ermitteln von Parametersätzen besteht in der Tatsache, daß auch bei gleichen (mit Hilfe eines Tonschwellenaudiogramms ermittelten) Hörschäden die subjektiven Empfindungen der Hörgeräteträger unter gleichen akustischen Umgebungsbedingungen unterschiedlich sind und zu verschiedenen optimalen Parametersätzen führen.Another difficulty with the two methods mentioned for determining parameter sets consists in the fact that even with the same (with the aid of a sound threshold audiogram) hearing damage, the subjective sensations of the hearing device wearer are different under the same acoustic ambient conditions and lead to different optimal parameter sets.

Die Erfindung hat demgemäß die Aufgabe, die genannten Probleme des Standes der Technik zu vermeiden und insbesondere das Festlegen von individuell optimal angepaßten Parametersätzen für unterschiedliche Hörsituationen bei einem Hörhilfegerät zu vereinfachen oder in der Praxis oft erst zu ermöglichen.The object of the invention is accordingly to avoid the aforementioned problems of the prior art and, in particular, to simplify the setting of individually optimally adapted parameter sets for different hearing situations in a hearing aid device, or often to enable them in practice.

Erfindungsgemäß wird die Aufgabe durch ein Hörgerätesystem der eingangs genannten Art gelöst, das gemäß den kennzeichnenden Merkmalen des Anspruchs 1 weitergebildet ist, sowie durch ein Verfahren mit den in Anspruch 11 genannten Schritten.According to the invention, the object is achieved by a hearing aid system of the type mentioned at the outset, which is further developed in accordance with the characterizing features of claim 1, and by a method having the steps mentioned in claim 11.

Die Erfindung beruht auf der Grundidee, den jeder Hörsituation zugeordneten Parametersatz eines programmierbaren Hörhilfegeräts nicht schon bei der Anpassung beim Hörgeräteakustiker festzulegen, sondern anfangs für jede Hörsituation mehrere Versuchs-Parametersätze vorzusehen. In einer Optimierungsphase kann der Hörgeräteträger dann ermitteln, welcher Parametersatz individuell für ihn in den einzelnen Hörsituationen am besten geeignet ist. Dieser Parametersatz wird schließlich der Hörsituation fest zugeordnet.The invention is based on the basic idea of not defining the parameter set of a programmable hearing aid device assigned to each hearing situation when the hearing care professional is adapting it, but initially to provide several test parameter sets for each hearing situation. In an optimization phase, the hearing aid wearer can then determine which parameter set is best suited for him in the individual hearing situations. This parameter set is then permanently assigned to the listening situation.

Ein Vorteil der erfindungsgemäßen Lösung ist, daß die Anpassung des Hörgeräts für die unterschiedlichen Hörsituationen besser ist als bei herkömmlicher Vorgehensweise, da sie sich jeweils individuell nach den realen akustischen Umgebungsbedingungen der persönlichen Lebensbereiche des Schwerhörigen richtet. Überdies kann die Anpassung weitgehend vom Hörgeräteträger selbst vorgenommen werden, so daß sie weniger aufwendig ist.An advantage of the solution according to the invention is that the adaptation of the hearing aid to the different listening situations is better than in the conventional procedure, since it is individually tailored to the real acoustic environmental conditions of the personal areas of life of the hearing impaired. In addition, the adjustment can largely be carried out by the hearing aid wearer himself, so that it is less expensive.

In bevorzugten Ausgestaltungen der Erfindung, die im folgenden überblicksartig dargestellt sind, sind die Hauptfunktionen der Anpaßeinrichtung in unterschiedlicher Weise auf verschiedene Baugruppen verteilt:

  • 1) Zumindest der erste Speicher für die Versuchs-Parametersätze, der zweite Speicher für die vom Benutzer getroffenen Zuordnungen und die Steuer- und Verarbeitungseinrichtung sind in einem externen Steuermodul vorgesehen, das in drahtloser Verbindung mit einem mobilen Zusatzmodul steht. Letzteres beinhaltet im wesentlichen einen Empfänger, der Daten vom Steuermodul erhält und an das Hörhilfegerät weitergibt.
  • 2) Die in 1) genannten Baugruppen sind in dem mobilen Zusatzmodul enthalten, während das externe Steuermodul im wesentlichen nur Bedienelemente (also Eingabetasten und eine Anzeige) sowie eine oder mehrere Schnittstellen enthält.
  • 3) Wie 1) oder 2), nur daß das Zusatzmodul entfällt und dessen Funktionen fest in das Hörhilfegerät integriert sind.
  • 4) Wie 3), wobei das Steuermodul nach Abschluß der Anpassungsphase als normale Fernsteuerung des Hörhilfegerätes dient. Die Anpassungsfunktionen sind dann deaktiviert.
  • 5) Alle Baugruppen der Anpaßeinrichtung einschließlich der Bedienelemente sind in das mobile, am Körper zu tragende Zusatzmodul integriert. Das Steuermodul kann entfallen.
In preferred embodiments of the invention, which are presented in the following overview, the main functions of the adapter are distributed in different ways to different assemblies:
  • 1) At least the first memory for the test parameter sets, the second memory for the assignments made by the user and the control and processing device are provided in an external control module which is in wireless connection with a mobile additional module. The latter essentially contains a receiver that receives data from the control module and forwards it to the hearing aid.
  • 2) The modules mentioned in 1) are contained in the mobile additional module, while the external control module essentially only contains control elements (that is, input keys and a display) and one or more interfaces.
  • 3) Like 1) or 2), except that the additional module is omitted and its functions are permanently integrated in the hearing aid.
  • 4) Like 3), the control module serving as a normal remote control of the hearing aid device after completion of the adaptation phase. The adjustment functions are then deactivated.
  • 5) All assemblies of the adapter, including the controls, are integrated in the mobile additional module to be worn on the body. The control module can be omitted.

Die Auswertung der während der Anpassungsphase im zweiten Speicher der Anpaßeinrichtung gespeicherten Zuordnungsdaten erfolgt vorzugsweise entweder in einem externen Auswertungsrechner oder in dem Steuermodul. Neben der Auswertung nur am Ende der Anpassungsphase kann auch eine laufende Überwachung der Zuordnungsdaten stattfinden, etwa um festzustellen, ob für eine Hörsituation kein optimaler Versuchs-Parametersatz vorliegt und daher der Hörgeräteakustiker zur Programmierung neuer Versuchs-Parametersätze aufgesucht werden muß. In einer Ausführungsalternative erzeugt die Anpaßeinrichtung nach vorbestimmten Regeln neue Parametersätze.The evaluation of the assignment data stored in the second memory of the adaptation device during the adaptation phase is preferably carried out either in an external evaluation computer or in the control module. In addition to the evaluation only at the end of the adaptation phase, the assignment data can also be continuously monitored, for example in order to determine whether an optimal test parameter set is not available for a hearing situation and therefore the hearing care professional must be consulted to program new test parameter sets. In an alternative embodiment, the adaptation device generates new parameter sets according to predetermined rules.

In einer bevorzugten Ausführungsform weist das Hörhilfegerät eine neuronale Struktur und eine Vergleichs- und Trainingsschaltung auf. Die neuronale Struktur wertet laufend akustische Eingangssignale aus. Die Vergleichs- und Trainingsschaltung vermag die neuronale Struktur gemäß den während einer Trainingsphase für jede Hörsituation ausgewählten Parametersätzen zu trainieren. Nach Abschluß der Trainingsphase bestimmt die neuronale Struktur selbständig passende Signalverarbeitungsparameter aus den Eingangssignalen, so daß der Hörgerätebenutzer nicht einmal mehr die aktuell vorliegende Hörsituation angeben muß.In a preferred embodiment, the hearing aid device has a neural structure and a comparison and training circuit. The neural structure continuously evaluates acoustic input signals. The comparison and training circuit can the neural structure according to the during to train selected parameter sets for each listening situation in a training phase. After completion of the training phase, the neural structure independently determines suitable signal processing parameters from the input signals, so that the hearing aid user no longer even has to state the current hearing situation.

Weitere bevorzugte Ausgestaltungen sind in den übrigen Unteransprüchen definiert.Further preferred configurations are defined in the remaining subclaims.

Ausführungsbeispiele der Erfindung werden nun unter Hinweis auf die schematischen Zeichnungen genauer beschrieben. Es stellen dar:

  • Fig. 1 eine Prinzipskizze des erfindungsgemäßen Hörgerätesystems in einer Ausführungsform mit einem Hinter-dem-Ohr-Hörhilfegerät,
  • Fig. 2 eine Prinzipskizze einer Ausführungsalternative mit einem Im-Ohr-Hörhilfegerät,
  • Fig. 3 eine Ansicht eines externen Steuermoduls,
  • Fig. 4 ein Blockdiagramm eines Zusatzmoduls,
  • Fig. 5 ein Blockdiagramm des externen Steuermoduls, und
  • Fig. 6 ein Blockdiagramm eines Hörhilfegeräts mit neuronaler Struktur.
Embodiments of the invention will now be described in more detail with reference to the schematic drawings. They represent:
  • 1 is a schematic diagram of the hearing aid system according to the invention in an embodiment with a behind-the-ear hearing aid,
  • 2 is a schematic diagram of an alternative embodiment with an in-the-ear hearing aid,
  • 3 is a view of an external control module,
  • 4 shows a block diagram of an additional module,
  • Fig. 5 is a block diagram of the external control module, and
  • 6 shows a block diagram of a hearing aid device with a neural structure.

In Fig. 1 ist als strichpunktierte Linie der Umriß eines Ohres mit einem hinter dem Ohr zu tragenden Hörhilfegerät 10 dargestellt, auf das ein Zusatzmodul 20 abnehmbar aufgesteckt ist. Das Hörhilfegerät 10 und das Zusatzmodul 20 sind über Kontaktflächen elektrisch miteinander verbunden. Über diese Verbindung können Parametersätze in das Hörhilfegerät 10 einprogrammiert werden, die die Charakteristik der Signalverarbeitung im Hörhilfegerät 10 bestimmen. Das Zusatzmodul 20 vermag Daten über eine drahtlose Datenübertragungsverbindung 24 mit einem externen Steuermodul 40 auszutauschen.1 shows the outline of an ear with a hearing aid 10 to be worn behind the ear, onto which an additional module 20 is detachably attached. The hearing aid 10 and the additional module 20 are electrically connected to one another via contact surfaces. Via this connection, parameter sets can be placed in the hearing aid 10 can be programmed, which determine the characteristics of the signal processing in the hearing aid device 10. The additional module 20 is able to exchange data with an external control module 40 via a wireless data transmission connection 24.

Fig. 2 zeigt als Abwandlung des in Fig. 1 dargestellten Hörgerätesystems ein im Ohr zu tragendes Hörhilfegerät 10', das über eine Verbindungsleitung 12 mit dem hinter dem Ohr zu tragenden Zusatzmodul 20 elektrisch verbunden ist. Die Verbindungsleitung 12 ist an das Hörhilfegerät 10' mittels an sich bekannter Verbindungselemente (Stecker/Buchse etc.) lösbar angeschlossen, wie sie beispielsweise für die drahtgebundene Programmierung von Hörhilfegeräten verwendet werden.FIG. 2 shows, as a modification of the hearing aid system shown in FIG. 1, a hearing aid device 10 'to be worn in the ear, which is electrically connected via a connecting line 12 to the additional module 20 to be worn behind the ear. The connecting line 12 is detachably connected to the hearing aid device 10 'by means of connecting elements (plug / socket, etc.) known per se, such as are used, for example, for the wired programming of hearing aid devices.

In Fig. 3 sind insbesondere die Bedien- und Anzeigeelemente des ähnlich wie eine Fernbedienung ausgestalteten externen Steuermoduls 40 gezeigt. Eine beispielsweise als alphanumerisches LCD-Display ausgestaltete Anzeigeeinrichtung 42 dient zur Benutzerführung. Beispielsweise können in einer ersten Zeile die eingestellte Hörsituation und in einer zweiten Zeile der jeweils zugeordnete Parametersatz angezeigt werden. Auch andere Texte, die bei der Programmierung des Steuermoduls 40 einprogrammiert worden sind, können angezeigt werden. Eine als Tastatur ausgestaltete Eingabeeinrichtung 44 weist mehrere Tasten auf, insbesondere Tasten 48 zum Einstellen der Hörsituation, Tasten 50 zum Zuordnen eines Parametersatzes zu der Hörsituation, eine Taste 52 zum Bestätigen und eine Taste 54 zur Korrektur von fehlerhaften Eingaben. Um die Bedienung des Steuermoduls 40 einfach zu gestalten, sind nur wenige klar gekennzeichnete Tasten ohne Doppelfunktion vorgesehen; bei dem in Fig. 3 gezeigten Steuermodul 40 beispielsweise Tasten für maximal vier Hörsituationen mit jeweils maximal vier Versuchs-Parametersätzen.FIG. 3 shows in particular the operating and display elements of the external control module 40, which is configured similarly to a remote control. A display device 42, for example in the form of an alphanumeric LCD display, is used for user guidance. For example, the set hearing situation can be displayed in a first line and the respectively assigned parameter set can be displayed in a second line. Other texts that have been programmed during the programming of the control module 40 can also be displayed. An input device 44 designed as a keyboard has several keys, in particular keys 48 for setting the hearing situation, keys 50 for assigning a parameter set to the hearing situation, a key 52 for confirming and a key 54 for correcting incorrect entries. In order to make the operation of the control module 40 simple, only a few clearly marked keys without a double function are provided; in the control module 40 shown in FIG. 3, for example, buttons for a maximum of four listening situations, each with a maximum of four experimental parameter sets.

Das in Fig. 4 gezeigte Zusatzmodul 20 weist eine Schnittstelle 22 zur bidirektionalen Datenübertragung zum Hörhilfegerät 10 bzw. 10' über Kontakte oder über die elektrische Verbindungsleitung 12 auf. Eine von einer Infrarot-Leuchtdiode und einem Fotosensor gebildete Datenübertragungsschnittstelle 26 dient zum Bereitstellen der bidirektionalen Datenübertragungsverbindung 24 zum externen Steuermodul 40. Die Datenübertragungsverbindung 24 ist bevorzugt drahtlos. Als Medium können sichtbares oder infrarotes Licht, Hochfrequenz-Funkwellen, Ultraschall, elektrische Induktion und so weiter dienen. Die Schnittstellen 22 und/oder 26 können auch einfacher als unidirektionale Schnittstellen ausgeführt sein, die Parametersätze nur in Richtung zum Hörhilfegerät 10 bzw. 10' zu übertragen vermögen.The additional module 20 shown in FIG. 4 has an interface 22 for bidirectional data transmission to the hearing aid device 10 or 10 ′ via contacts or via the electrical connecting line 12. A data transmission interface 26 formed by an infrared light-emitting diode and a photo sensor serves to provide the bidirectional data transmission connection 24 to the external control module 40. The data transmission connection 24 is preferably wireless. Visible or infrared light, high-frequency radio waves, ultrasound, electrical induction and so on can serve as the medium. The interfaces 22 and / or 26 can also be made simpler than unidirectional interfaces, which are able to transmit parameter sets only in the direction of the hearing aid device 10 or 10 '.

Die Schnittstellen 22 und 26 stehen untereinander sowie mit einer Steuer- und Verarbeitungseinrichtung 30 in Verbindung. Letztere vermag auf mehrere Festwertspeicher und/oder Schreib-/Lesespeicher zuzugreifen, insbesondere auf einen ersten Speicher 32 für die Versuchs-Parametersätze und auf einen zweiten Speicher 34 für die vom Benutzer getroffenen Zuordnungen während der Optimierungsphase. Ferner sind ein Modul 36 zum Erzeugen einer gegebenenfalls erforderlichen Programmierspannung für das Hörhilfegerät 10 bzw. 10' sowie ein Stromversorgungsmodul 38 vorgesehen. Das Modul 36 ist an die Verbindungsleitung 12 angeschlossen und wird von der Steuer- und Verarbeitungseinrichtung 30 angesteuert. Das Stromversorgungsmodul 38 speist alle genannten Bauelemente und ist ferner über die Verbindungsleitung 12 mit dem Hörhilfegerät 10 bzw. 10' verbunden.The interfaces 22 and 26 are connected to one another and to a control and processing device 30. The latter is able to access several read-only memories and / or read / write memories, in particular a first memory 32 for the test parameter sets and a second memory 34 for the assignments made by the user during the optimization phase. Furthermore, a module 36 for generating a possibly required programming voltage for the hearing aid device 10 or 10 ′ and a power supply module 38 are provided. The module 36 is connected to the connecting line 12 and is controlled by the control and processing device 30. The power supply module 38 feeds all of the components mentioned and is also connected to the hearing aid device 10 or 10 ′ via the connecting line 12.

Das Zusatzmodul 20 ist in Fig. 4 in einer Ausführungsform mit voller Funktionalität gezeigt. In anderen Ausführungsformen, in denen einige Funktionen beispielsweise vom Steuermodul 40 übernommen werden, können Baugruppen weggelassen werden. Beispielsweise brauchen der erste und zweite Speicher 32 und 34 nur entweder im Zusatzmodul 20 oder im Steuermodul 40 vorgesehen zu sein. Die Steuer- und Verarbeitungseinrichtung 30 kann dann einfacher ausgeführt sein oder sogar ganz wegfallen.The additional module 20 is shown in FIG. 4 in an embodiment with full functionality. In other embodiments, in which some functions are taken over by the control module 40, for example, assemblies can be omitted. For example, the first and second memory need 32 and 34 only to be provided either in the additional module 20 or in the control module 40. The control and processing device 30 can then be made simpler or can even be omitted entirely.

Fig. 5 zeigt den Aufbau des externen Steuermoduls 40. Die bereits in Zusammenhang mit Fig. 3 beschriebenen Anzeige- und Eingabeeinrichtungen 42 bzw. 44 sind mit einer Steuer- und Verarbeitungseinrichtung 46 verbunden, an die ein erster und ein zweiter Speicher 60 und 62, eine Rechnerschnittstelle 64 und eine Datenübertragungsschnittstelle 68 zum Zusatzmodul 20 angeschlossen sind. Ferner ist ein Stromversorgungsmodul 70 für die genannten Baugruppen vorgesehen. Die Rechnerschnittstelle 64 ist mit einem Anschluß 66 für einen externen Auswertungsrechner verbunden. Über die Rechnerschnittstelle 64 können einerseits, vor Beginn der Optimierungsphase, Versuchs-Parametersätze vom Auswertungsrechner zum Steuermodul 40 und andererseits, nach Abschluß der Optimierungsphase, Zuordnungsdaten vom Steuermodul 40 zum Auswertungsrechner übertragen werden.5 shows the structure of the external control module 40. The display and input devices 42 and 44 already described in connection with FIG. 3 are connected to a control and processing device 46 to which a first and a second memory 60 and 62, a computer interface 64 and a data transmission interface 68 are connected to the additional module 20. Furthermore, a power supply module 70 is provided for the modules mentioned. The computer interface 64 is connected to a connection 66 for an external evaluation computer. Via the computer interface 64, on the one hand, before the start of the optimization phase, test parameter sets can be transmitted from the evaluation computer to the control module 40 and, on the other hand, after the optimization phase has ended, assignment data can be transmitted from the control module 40 to the evaluation computer.

Auch das Steuermodul 40 ist in Fig. 5 in einer Ausführungsform mit voller Funktionalität gezeigt. Je nach der Verteilung der Funktionen der Anpaßeinrichtung auf das Zusatzmodul 20 und das Steuermodul 40 können einzelne Baugruppen wegfallen oder vereinfacht werden. Die Rechnerschnittstelle 64 kann weggelassen werden, wenn die Eingabe der Versuchs-Parametersätze über die Eingabeeinrichtung 44 erfolgt und die Auswertung der Zuordnungsdaten von der Steuer- und Verarbeitungseinrichtung 46 vorgenommen wird. Außerdem kann die Steuer- und Verarbeitungseinrichtung 46 zur Generierung von neuen oder abgewandelten Versuchs-Parametersätzen nach einprogrammierten oder fest vorgegebenen Regeln eingerichtet sein.The control module 40 is also shown in FIG. 5 in one embodiment with full functionality. Depending on the distribution of the functions of the adaptation device to the additional module 20 and the control module 40, individual assemblies can be omitted or simplified. The computer interface 64 can be omitted if the test parameter sets are input via the input device 44 and the evaluation of the assignment data is carried out by the control and processing device 46. In addition, the control and processing device 46 can be set up to generate new or modified test parameter sets according to programmed or fixed rules.

In Fig. 6 ist die Schaltung eines komplex aufgebauten Hörhilfegerätes 10 bzw. 10' dargestellt, das weiter unten genauer beschrieben wird. Für die bisher geschilderten Ausführungsformen des Hörgerätesystems reicht ein Hörhilfegerät 10 bzw. 10' aus, bei dem von den in Fig. 6 gezeigten Bauelementen lediglich ein als Mikrofon ausgestalteter Eingangswandler 14, ein als Hörer ausgestalteter Ausgangswandler 18, eine Signalverarbeitungseinrichtung 16 mit einer durch Parameter bestimmten Übertragungscharakteristik, ein Speicher 80 für mindestens einen Parametersatz der Signalverarbeitungseinrichtung 16 und eine Schnittstelle 90 zur Anpaßeinrichtung vorgesehen sind. Die Schnittstelle 90 ist in einer Ausführungsform über die elektrische Verbindungsleitung 12 mit dem Zusatzmodul 20 verbunden.FIG. 6 shows the circuit of a complex hearing aid device 10 or 10 ′, which is described in more detail below. For the previously described embodiments of the hearing aid system, a hearing aid device 10 or 10 'is sufficient, in which of the components shown in FIG. 6, only an input transducer 14 designed as a microphone, an output transducer 18 designed as a receiver, a signal processing device 16 with a parameter determined Transmission characteristics, a memory 80 for at least one parameter set of the signal processing device 16 and an interface 90 to the matching device are provided. In one embodiment, the interface 90 is connected to the additional module 20 via the electrical connecting line 12.

Zum Konfigurieren und Optimieren der Parameter des Hörhilfegerätes wird, gemäß einem Ausführungsbeispiel des erfindungsgemaßen Verfahrens, zunächst durch den Hörgeräteakustiker festgelegt, für welche Hörsituationen der Hörgeräteträger die (auch als Hörprogramme bezeichneten) Parametersätze individuell ermitteln will. Beispiele für Hörsituation können sein: "Am Arbeitsplatz", "Gesprächssituation im Auto", "Musik hören zu Hause" und so weiter. Für jede dieser Hörsituationen werden mit Hilfe einer auf dem externen Auswertungsrechner laufenden Anpaßsoftware gemäß dem Hörschaden des Hörgeräteträgers mehrere Versuchs-Parametersätze ermittelt. Die ermittelten Parametersätze werden über die Rechnerschnittstelle 64 an das Steuermodul 40 übermittelt und entweder dort im ersten Speicher 60 abgelegt oder weiter über die Datenübertragungsverbindung 24 an das Zusatzmodul 20 übertragen und in dessen erstem Speicher 32 abgelegt.To configure and optimize the parameters of the hearing aid device, according to one exemplary embodiment of the method according to the invention, the hearing care professional first determines for which hearing situations the hearing device wearer wants to determine the parameter sets (also referred to as hearing programs) individually. Examples of listening situations can be: "At work", "Conversation situation in the car", "Listening to music at home" and so on. For each of these hearing situations, a number of test parameter sets are determined with the aid of an adaptation software running on the external evaluation computer in accordance with the hearing damage of the hearing device wearer. The determined parameter sets are transmitted to the control module 40 via the computer interface 64 and either stored there in the first memory 60 or further transmitted via the data transmission connection 24 to the additional module 20 and stored in its first memory 32.

Für die Phase der Parameteroptimierung werden dem Schwerhörigen das Steuermodul 40 und das mobile Zusatzmodul 20 zur Verfügung gestellt. Wenn sich der Schwerhörige in einer für ihn typischen Hörsituation befindet, kann er über das Steuermodul 40 zuerst mittels der Tasten 48 die Hörsituation auswählen und anschließend mittels der Tasten 50 jeweils einen der ihr zugeordneten Versuchs-Parametersätze aktivieren. Dieser wird nun vom Steuermodul 40 an das mobile Zusatzmodul 20 übertragen, von diesem in das Hörhilfegerät 10 bzw. 10' einprogrammiert und dort aktiviert. Hat der Schwerhörige den für die ausgewählte Hörsituation optimalen Parametersatz gefunden, so kann er diesen durch Betätigung der Bestätigungstaste 52 abspeichern. Das heißt, daß im zweiten Speicher 62 des Steuermoduls 40 (bzw. im zweiten Speicher 34 des Zusatzmoduls 20) notiert wird, daß eine Zuordnung dieses Parametersatzes zur eingestellten Hörsituation stattgefunden hat.For the phase of parameter optimization, the control module 40 and the mobile additional module 20 are made available to the hearing impaired. If the hearing impaired person is in a hearing situation that is typical for him, he can use the control module 40 first select the listening situation using the buttons 48 and then activate one of the test parameter sets assigned to it using the buttons 50. This is now transmitted from the control module 40 to the mobile additional module 20, programmed by the latter into the hearing aid device 10 or 10 ′ and activated there. If the hearing impaired person has found the optimal parameter set for the selected hearing situation, he can save this by pressing the confirmation key 52. This means that it is noted in the second memory 62 of the control module 40 (or in the second memory 34 of the additional module 20) that this parameter set has been assigned to the set listening situation.

Nach Ablauf der Optimierungsphase wird der zweite Speicher 62 des Steuermoduls 40 (bzw. der zweite Speicher 34 des Zusatzmoduls 20) beim Hörgeräteakustiker ausgelesen und ermittelt, welche Zuordnung von Hörsituationen zu Parametersätzen wie häufig vorgenommen wurde. Der Parametersatz mit der häufigsten Zuordnung für jede Hörsituation wird als entsprechendes Hörprogramm im Hörhilfegerät 10 bzw. 10' gespeichert.After the optimization phase has ended, the second memory 62 of the control module 40 (or the second memory 34 of the additional module 20) is read out by the hearing care professional and it is determined which assignment of hearing situations to parameter sets has been made and how often. The parameter set with the most frequent assignment for each hearing situation is stored as a corresponding hearing program in the hearing aid device 10 or 10 '.

Damit ist die Optimierungsphase abgeschlossen und der Benutzer braucht nur noch das Hörhilfegerät 10 bzw. 10' (und nicht mehr die aus dem Zusatzmodul 20 und dem Steuermodul 40 bestehende Anpaßeinrichtung) zu tragen. Wenn das Hörgerätesystem so ausgelegt ist, daß das Steuermodul 40 direkt mit dem Hörhilfegerät 10 bzw. 10' kommuniziert, dann kann das Steuermodul 40 auch nach Abschluß der Optimierungsphase als normale Fernsteuerung des Hörhilfegerätes 10 bzw. 10' dienen. Die Anpassungsfunktionen sind dann deaktiviert. In dieser Ausgestaltung können die in der Optimierungsphase ermittelten Parametersätze in dem nun als Fernsteuerung wirkenden Steuermodul 40 gespeichert bleiben. Es braucht nur der jeweils aktuell gewünschte Parametersatz zum Hörhilfegerät 10 bzw. 10' übertragen zu werden, so daß letzteres lediglich einen Speicher 80 für einen einzigen Parametersatz aufweisen muß.This completes the optimization phase and the user only needs to wear the hearing aid 10 or 10 '(and no longer the adaptation device consisting of the additional module 20 and the control module 40). If the hearing aid system is designed such that the control module 40 communicates directly with the hearing aid device 10 or 10 ', the control module 40 can also serve as a normal remote control of the hearing aid device 10 or 10' after the optimization phase has ended. The adjustment functions are then deactivated. In this embodiment, the parameter sets determined in the optimization phase can remain stored in the control module 40, which now acts as a remote control. All that is needed is the currently required parameter set for the hearing aid 10 or 10 'to be transferred, so that the latter only has to have a memory 80 for a single parameter set.

Zeigt für eine Hörsituation die Zuordnungshäufigkeit der Parametersätze eine zu geringe Signifikanz, so können die entsprechenden Parametersätze mit Hilfe der Anpaßsoftware modifiziert und erneut im Steuermodul 40 gespeichert werden. In einer zweiten Optimierungsphase kann nun nochmals die optimale Zuordnung ermittelt werden.If the assignment frequency of the parameter sets shows insufficient significance for a hearing situation, the corresponding parameter sets can be modified with the aid of the adaptation software and stored again in the control module 40. In a second optimization phase, the optimal assignment can now be determined again.

In einer Ausführungsalternative des erfindungsgemäßen Verfahrens erfolgt die Auswertung der Zuordnungen von Hörsituationen zu Versuchs-Parametersätzen bereits während der Optimierungsphase im Steuermodul 40. Eine zu geringe Signifikanz der Zuweisungen von Versuchs-Parametersätzen zu einer bestimmten Hörsituation wird dahingehend interpretiert, daß für diese Hörsituation kein optimaler Versuchs-Parametersatz vorliegt. Der Hörgeräteträger wird dann über die Anzeigeeinrichtung 42 aufgefordert, seinen Hörgeräteakustiker aufzusuchen, um neue Versuchs-Parametersätze einprogrammieren zu lassen. Alternativ können diese neuen Versuchs-Parametersätze auch im Steuermodul 40 nach fest vorgegebenen oder einprogrammierbaren Regeln generiert werden.In an alternative embodiment of the method according to the invention, the assignments of listening situations to experimental parameter sets are evaluated during the optimization phase in control module 40. Insignificant significance of the assignments of experimental parameter sets to a specific listening situation is interpreted to mean that an optimal trial is not carried out for this listening situation Parameter set is present. The hearing device wearer is then asked via the display device 42 to visit his hearing device acoustician in order to have new test parameter sets programmed. Alternatively, these new test parameter sets can also be generated in the control module 40 according to predefined or programmable rules.

In einer weiteren Ausführungsvariante der Erfindung ist das Hörhilfegerät 10 bzw. 10' gemäß Fig. 6 ausgestaltet. Neben den oben bereits beschriebenen Bauelementen weist dieses Hörhilfegerät 10 bzw. 10' eine auch als neuronales Netzwerk bezeichnete neuronale Struktur 82, einen Speicher 84 für Parameter der neuronalen Struktur 82, eine Signalaufbereitungseinrichtung 86 und eine Vergleichs- und Trainingsschaltung 88 auf. Die Signalaufbereitungseinrichtung 86 ist an einer geeigneten Abgriffstelle mit der Signalverarbeitungseinrichtung 16 verbunden und führt der neuronalen Struktur 82 geeignet aufbereitete Signale zu, die den vom Eingangswandler 14 aufgenommenen akustischen Informationen entsprechen.In a further embodiment variant of the invention, the hearing aid device 10 or 10 ′ is designed according to FIG. 6. In addition to the components already described above, this hearing aid device 10 or 10 ′ has a neural structure 82, also referred to as a neural network, a memory 84 for parameters of the neural structure 82, a signal conditioning device 86 and a comparison and training circuit 88. The signal processing device 86 is connected to the signal processing device 16 at a suitable tapping point and supplies the neural structure 82 with suitably prepared signals which correspond to those of the Input converter 14 correspond to recorded acoustic information.

Der Speicher 84 enthält Parameter, die das Ausgabeverhalten der neuronalen Struktur 82 steuern. Er ist mit der neuronalen Struktur 82 sowie der Vergleichs- und Trainingsschaltung 88 verbunden. Die Vergleichs- und Trainingsschaltung 88 steuert die neuronale Struktur 82, den Speicher 84 für die neuronale Struktur 82 und den Speicher 80 für Parametersätze. Die Ausgänge des Speichers 80 bzw. der neuronalen Struktur 82 sind mit der Vergleichs- und Trainingsschaltung 88 sowie mit einem Parametereingang der Signalverarbeitungseinrichtung 16 verbunden, über den die Übertragungscharakteristik der Signalverarbeitungseinrichtung 16 einstellbar ist. Durch die Vergleichs- und Trainingsschaltung 88 wird unter anderem bestimmt, ob zur Steuerung der Signalverarbeitungseinrichtung 16 die Ausgaben der neuronalen Struktur 82, die im Speicher 80 gespeicherten Parameter oder eine Mischung von beiden herangezogen werden.Memory 84 contains parameters that control the output behavior of neural structure 82. It is connected to the neural structure 82 and the comparison and training circuit 88. The comparison and training circuit 88 controls the neural structure 82, the memory 84 for the neural structure 82 and the memory 80 for parameter sets. The outputs of the memory 80 or the neural structure 82 are connected to the comparison and training circuit 88 and to a parameter input of the signal processing device 16, via which the transmission characteristic of the signal processing device 16 can be set. The comparison and training circuit 88 determines, inter alia, whether the outputs of the neural structure 82, the parameters stored in the memory 80 or a mixture of both are used to control the signal processing device 16.

Aus der EP-A-0 712 263 (Aktenzeichen 94 117 797.4, eingereicht am 10. November 1994) ist ein Hörhilfegerät 10 bzw. 10' bekannt, bei dem die Signalverarbeitung steuernde Parameter durch eine neuronale Struktur bestimmt werden. Der Inhalt der EP-A-0 712 263 wird ausdrücklich in die vorliegende Beschreibung aufgenommen, insbesondere im Hinblick auf den dort offenbarten Aufbau der Signalaufbereitungseinrichtung 86 (siehe Fig. 3 der EP-A-0 712 263 mit der zugehörigen Beschreibung) und der neuronalen Struktur 82 (siehe Fig. 4 bis Fig. 8 der EP-A-0 712 263 mit der zugehörigen Beschreibung). In der genannten Offenlegungsschrift ist jedoch nicht angegeben, wie das Training der neuronalen Struktur 82 ablaufen kann.A hearing aid 10 or 10 'is known from EP-A-0 712 263 (file number 94 117 797.4, filed on November 10, 1994), in which parameters controlling the signal processing are determined by a neural structure. The content of EP-A-0 712 263 is expressly included in the present description, in particular with regard to the structure of the signal processing device 86 disclosed there (see FIG. 3 of EP-A-0 712 263 with the associated description) and the neural Structure 82 (see Figures 4 to 8 of EP-A-0 712 263 with the associated description). However, the aforementioned publication does not specify how the training of the neural structure 82 can take place.

Nach der erfindungsgemäßen Ausgestaltung werden zum Training der neuronalen Struktur 82 und somit zur Programmierung des Hörgerätesystems zunächst Versuchs-Parametersätze festgelegt. Während der Optimierungsphase teilt der Benutzer dem Hörhilfegerät 10 bzw. 10' auf die oben beschriebene Weise über die Schnittstelle 90 den jeweils für die augenblickliche Hörsituation als optimal empfundenen Parametersatz mit. Dieser wird in den Speicher 80 geschrieben. Unabhängig davon errechnet die neuronale Struktur 82 aus den von der Signalaufbereitungseinrichtung 86 stammenden Daten einen vorgeschlagenen Parametersatz.According to the embodiment according to the invention, the training of the neural structure 82 and thus the programming of the Hearing aid system first set experimental parameter sets. During the optimization phase, the user informs the hearing aid device 10 or 10 'in the manner described above via the interface 90 of the parameter set which is perceived as optimal for the current hearing situation. This is written into the memory 80. Regardless of this, the neural structure 82 calculates a proposed parameter set from the data coming from the signal conditioning device 86.

Die Vergleichs- und Trainingsschaltung 88 vergleicht während der Optimierungsphase laufend den vom Benutzer als optimal empfundenen und in den Speicher 80 geschriebenen Parametersatz mit dem von der neuronalen Struktur 82 ermittelten Parametersatz. Aus den Abweichungen dieser Parametersätze wird nach einem vorgegebenen Algorithmus (z.B. einem Lernalgorithmus für neuronale Netze nach dem Stand der Technik) eine Fehlerinformation gewonnen. Basierend auf dieser Fehlerinformation modifiziert die Vergleichs- und Trainingsschaltung 88 die im Speicher 84 enthaltenen Parameter für die neuronale Struktur 82. Auf diese Weise wird die neuronale Struktur 82 während der Optimierungsphase trainiert, bis sie alleine mit zufriedenstellender Genauigkeit für alle akustischen Umgebungsbedingungen geeignete Parametersätze ermitteln kann.During the optimization phase, the comparison and training circuit 88 continuously compares the parameter set which the user perceives as optimal and which is written into the memory 80, with the parameter set determined by the neural structure 82. Error information is obtained from the deviations of these parameter sets according to a predetermined algorithm (e.g. a learning algorithm for neural networks according to the prior art). Based on this error information, the comparison and training circuit 88 modifies the parameters for the neural structure 82 contained in the memory 84. In this way, the neural structure 82 is trained during the optimization phase until it can determine suitable parameter sets for all acoustic environmental conditions alone with satisfactory accuracy .

Dabei erhält zu Beginn der Optimierungsphase (Trainingsphase) die Signalverarbeitungseinrichtung 16 ihre Steuerparameter ausschließlich aus dem Speicher 80 für den vom Benutzer eingegebenen Parametersatz, mit fortschreitendem Trainingserfolg dann zunehmend aus der neuronalen Struktur 82. Nach Abschluß der Trainingsphase erhält sie ihre Steuerparameter nur noch aus der neuronalen Struktur 82. Die Anpaßeinrichtung wird dann vom Hörgeräteträger nicht mehr benötigt.At the beginning of the optimization phase (training phase), the signal processing device 16 receives its control parameters exclusively from the memory 80 for the parameter set entered by the user, then progressively from the neural structure 82 as the training progresses. After the training phase has ended, it receives its control parameters only from the neuronal structure Structure 82. The fitting device is then no longer required by the hearing aid wearer.

Claims (12)

Programmierbares Hörgerätesystem, mit - einem Hörhilfegerät (10; 10'), das - einen Eingangswandler (14), - einen Ausgangswandler (18), - eine Signalverarbeitungseinrichtung (16) mit einstellbaren Arbeitsparametern, - einen Speicher (80) für mindestens einen für eine Hörsituation vorgesehenen Parametersatz für die Signalverarbeitungseinrichtung (16), und - eine Schnittstelle (90) zur Anpaßeinrichtung aufweist, und - einer Anpaßeinrichtung,
dadurch gekennzeichnet, daß - die Anpaßeinrichtung aufweist: - einen ersten Speicher (32; 60) für mehrere zur Auswahl stehende Parametersätze für jede von mehreren Hörsituationen, - eine Eingabeeinrichtung (44) zum Auswählen einer aktuell vorliegenden Hörsituation sowie eines der mehreren für diese Hörsituation zur Auswahl stehenden Parametersätze, - einen zweiten Speicher (34; 62) für Zuordnungsdaten, die die für jede Hörsituation ausgewählten Parametersätze betreffen, - eine Schnittstelle (22) zum Hörhilfegerät (10; 10'), und - eine Steuer- und Verarbeitungseinrichtung (30; 46). Programmable hearing aid system, with - A hearing aid (10; 10 ') that - an input converter (14), - an output converter (18), a signal processing device (16) with adjustable working parameters, - a memory (80) for at least one parameter set intended for a hearing situation for the signal processing device (16), and - An interface (90) to the adapter, and - a fitting device,
characterized in that - the adapter has: a first memory (32; 60) for several parameter sets available for selection for each of several listening situations, an input device (44) for selecting a currently available hearing situation and one of the several parameter sets available for this hearing situation, - a second memory (34; 62) for assignment data relating to the parameter sets selected for each hearing situation, - An interface (22) to the hearing aid (10; 10 '), and - A control and processing device (30; 46). Hörgerätesystem nach Anspruch 1,
dadurch gekennzeichnet, daß die Anpaßeinrichtung ein mit dem Hörhilfegerät (10; 10') elektrisch verbindbares Zusatzmodul (20) und ein externes Steuermodul (40) aufweist, das eine vorzugsweise drahtlose Datenübertragungsverbindung (24) mit dem Zusatzmodul (20) aufzubauen vermag.Hearing aid system according to claim 1,
characterized in that the adaptation device has an additional module (20) which can be electrically connected to the hearing aid device (10; 10 ') and an external control module (40) which preferably has a wireless connection Can establish data transmission connection (24) with the additional module (20). Hörgerätesystem nach Anspruch 1,
dadurch gekennzeichnet, daß die Anpaßeinrichtung ein Zusatzmodul (20) aufweist, das Bestandteil des Hörhilfegerätes (10; 10') ist, und daß die Anpaßeinrichtung ferner ein externes Steuermodul (40) aufweist, das eine vorzugsweise drahtlose Datenübertragungsverbindung (24) mit dem Zusatzmodul (20) aufzubauen vermag.Hearing aid system according to claim 1,
characterized in that the adaptation device has an additional module (20) which is part of the hearing aid device (10; 10 '), and in that the adaptation device also has an external control module (40) which has a preferably wireless data transmission connection (24) with the additional module ( 20) is able to build up. Hörgerätesystem nach Anspruch 2 oder 3,
dadurch gekennzeichnet, daß das Zusatzmodul (20) die Schnittstelle (22) zum Hörhilfegerät (10; 10') und eine Datenübertragungsschnittstelle (26) zu dem externen Steuermodul (40) aufweist, und daß das externe Steuermodul (40) den ersten und den zweiten Speicher (60, 62) der Anpaßeinrichtung, die Eingabeeinrichtung (44), die Steuer- und Verarbeitungseinrichtung (46) und eine Datenübertragungsschnittstelle (68) zum Zusatzmodul (20) aufweist.Hearing aid system according to claim 2 or 3,
characterized in that the additional module (20) has the interface (22) to the hearing aid (10; 10 ') and a data transmission interface (26) to the external control module (40), and in that the external control module (40) the first and the second Memory (60, 62) of the adaptation device, the input device (44), the control and processing device (46) and a data transmission interface (68) to the additional module (20). Hörgerätesystem nach Anspruch 2 oder 3,
dadurch gekennzeichnet, daß das Zusatzmodul (20) die Schnittstelle (22) zum Hörhilfegerät (10; 10'), den ersten und den zweiten Speicher (32, 34) der Anpaßeinrichtung, die Steuer- und Verarbeitungseinrichtung (30) und eine Datenübertragungsschnittstelle (26) zu dem externen Steuermodul (40) aufweist, und daß das externe Steuermodul (40) die Eingabeeinrichtung (44) und eine Datenübertragungsschnittstelle (68) zu dem Zusatzmodul (20) aufweist.Hearing aid system according to claim 2 or 3,
characterized in that the additional module (20) has the interface (22) to the hearing aid device (10; 10 '), the first and the second memory (32, 34) of the adaptation device, the control and processing device (30) and a data transmission interface (26 ) to the external control module (40), and that the external control module (40) has the input device (44) and a data transmission interface (68) to the additional module (20). Hörgerätesystem nach einem der Ansprüche 2 bis 5,
dadurch gekennzeichnet, daß das externe Steuermodul (40) Bestandteil einer Fernsteuerung für das Hörhilfegerät (10; 10') ist.Hearing aid system according to one of claims 2 to 5,
characterized in that the external control module (40) is part of a remote control for the hearing aid (10; 10 '). Hörgerätesystem nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, daß die Anpaßeinrichtung, vorzugsweise im externen Steuermodul (40), eine Anzeigeeinrichtung (42) aufweist.Hearing aid system according to one of claims 1 to 6,
characterized in that the adaptation device, preferably in the external control module (40), has a display device (42). Hörgerätesystem nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, daß die Anpaßeinrichtung oder ein externer und mit der Anpaßeinrichtung über eine Rechnerschnittstelle (64) verbundener Auswertungsrechner dazu eingerichtet ist, aus den im zweiten Speicher (34; 62) gespeicherten Zuordnungsdaten eine optimale Zuordnung je eines Parametersatzes zu jeder Hörsituation zu bestimmen.Hearing aid system according to one of claims 1 to 7,
characterized in that the adaptation device or an external evaluation computer connected to the adaptation device via a computer interface (64) is set up to determine an optimal assignment of one parameter set to each hearing situation from the assignment data stored in the second memory (34; 62). Hörgerätesystem nach Anspruch 8,
dadurch gekennzeichnet, daß die Anpaßeinrichtung oder der externe Auswertungsrechner dazu eingerichtet ist, zu ermitteln, ob sich aus den im zweiten Speicher (34; 62) gespeicherten Zuordnungsdaten eine optimale Zuordnung je eines Parametersatzes zu jeder Hörsituation bestimmen läßt.Hearing aid system according to claim 8,
characterized in that the adapting device or the external evaluation computer is set up to determine whether an optimal assignment of a parameter set to each hearing situation can be determined from the assignment data stored in the second memory (34; 62). Hörgerätesystem nach einem der Ansprüche 1 bis 9,
dadurch gekennzeichnet, daß das Hörhilfegerät (10; 10') ferner eine neuronale Struktur (82), einen Speicher (84) für Parameter für die neuronale Struktur (82) und eine Vergleichs- und Trainingsschaltung (88) aufweist, und daß die Vergleichs- und Trainingsschaltung (88) dazu eingerichtet ist, durch Modifikation der im Speicher (84) befindlichen Werte die neuronale Struktur (82) gemäß den für jede Hörsituation ausgewählten Parametersätzen zu trainieren.Hearing aid system according to one of claims 1 to 9,
characterized in that the hearing aid (10; 10 ') further comprises a neural structure (82), a memory (84) for parameters for the neural structure (82) and a comparison and training circuit (88), and in that the comparison and training circuit (88) is set up to modify the neuronal structure (82) by modifying the values in the memory (84). to train according to the parameter sets selected for each listening situation. Verfahren zum Ermitteln je eines optimalen Parametersatzes für mehrere Hörsituationen bei einem Hörhilfegerät (10, 10'), mit den Schritten: 1. zur Vorbereitung: 1.1 Festlegen mehrerer Hörsituationen, 1.2 Festlegen jeweils mehrerer Versuchs-Parametersätze für jede Hörsituation, 2. während einer Optimierungsphase für jede aktuell auftretende Hörsituation: 2.1 Zuordnen des jeweils benutzerspezifisch optimalen Parametersatzes, 2.2 Speichern von die gewählte Zuordnung betreffenden Daten, 3. zur Konfigurierung des Hörhilfegerätes (10; 10'): 3.1 Auswerten der gespeicherten Zuordnungsdaten zur Bestimmung je eines optimalen Parametersatzes für jede Hörsituation, und 3.2 Einprogrammieren der optimalen Parametersätze als Hörprogramme im Hörhilfegerät (10, 10') Method for determining an optimal parameter set for several hearing situations in a hearing aid device (10, 10 '), with the steps: 1. in preparation: 1.1 defining several listening situations, 1.2 Definition of several test parameter sets for each hearing situation, 2. During an optimization phase for every hearing situation currently occurring: 2.1 assigning the user-specific optimal parameter set, 2.2 storage of data relating to the selected assignment, 3. to configure the hearing aid (10; 10 '): 3.1 evaluating the stored assignment data to determine an optimal parameter set for each hearing situation, and 3.2 Programming the optimal parameter sets as hearing programs in the hearing aid device (10, 10 ') Verfahren nach Anspruch 11,
bei dem während der Optimierungsphase die Häufigkeit der gewählten Zuordnungen überwacht wird, um eine zu geringe Signifikanz zu erkennen und dies dem Hörgeräteträger anzuzeigen und/oder automatisch neue Versuchs-Parametersätze zu generieren.A method according to claim 11,
in which the frequency of the selected assignments is monitored during the optimization phase in order to identify a significance that is too low and to indicate this to the hearing device wearer and / or to automatically generate new test parameter sets.
EP96110067A 1996-06-21 1996-06-21 Programmable hearing-aid system and method for determining an optimal set of parameters in an acoustic prosthesis Expired - Lifetime EP0814634B1 (en)

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