EP2028879A2 - Method and device for adjusting a hearing aid - Google Patents

Abstract

The method involves adjusting a transformation database, and adjusting a source hearing aid, where characteristics of the source aid are adjusted to a target hearing aid (4). An adjustment that leads audible transformation database to the characteristics corresponding to the characteristics of the identified source aid is recalled. The recalled adjustment is adjusted to the target aid. The adjustment of hearing aids of different types is stored in the database to allow one hearing aid to lend the characteristics of the other hearing aid with identified adjustment.

Description

The invention relates to a method and a device for setting a characteristic of a hearing aid on another hearing aid, in particular after the replacement of an old hearing aid by a new hearing aid. Hearing devices usually have a variety of settings to allow the wearer of a hearing aid natural hearing possible or to incorporate individual preferences of the hearing aid wearer in the setting of his personal hearing aid. The setting of a hearing aid is usually initially carried out in the form of a specification of a parameter set, which can be matched only relatively roughly to the expected requirements of the hearing aid wearer. At the beginning of the actual use of the hearing aid then fine tunings take place at short intervals, which lead to an improved parameter setting and are either made in several consecutive sessions at a hearing care professional or carried out by the hearing aid wearer with the aid of certain optimization algorithms themselves. After such parameter optimization, no parameter adjustments are often made over longer periods of time. A hearing aid wearer, in particular a person with hearing loss, thereby becomes accustomed to the transmission properties of his hearing aid on a continuous basis, which affects in particular the sound of the hearing aid, but also various implicit signal processing algorithms and their effect.

In certain situations, the replacement of a hearing aid is required. This can be given, for example, by a deterioration or change in the hearing of the hearing aid wearer, other exemplary situations can be found after technical defects of the hearing aid to be replaced or a desire for now available comfort features and / or otherwise increased Functional variety of modern hearing aids. The change of a hearing aid always entails the danger that the hearing aid wearer perceives the sound of the new hearing aid as unfamiliar and unfamiliar due to the habituation to the old hearing aid that has hitherto been carried out and then possibly rejects the change of the hearing aid. It is therefore sometimes attempted to obtain a hearing aid of the same model when the hearing device is required to change, which in times of rapid technical progress can already be difficult for reasons of availability and practically cuts off the user of hearing aids from further technical developments. It is known to increase the acceptance of a change of the hearing aid by trying to adjust the sound or generally the transmission characteristics of the new hearing aid by making appropriate parameter settings so that the subjective impression that conveys the new hearing aid, largely the old hearing aid equivalent. In the case of a manual implementation of these parameter settings, in particular by a hearing care professional, finding an often subjectively justifiable setting is often associated with an extreme effort or hardly feasible against the backdrop of the meanwhile enormous complexity of modern hearing aids, if not technically available functions in the meantime should be suppressed. As far as the effort of setting the parameters applies mutatis mutandis to methods in which the setting of a new hearing aid is done in several stages, which are made at intervals that allow for acclimatization of the hearing aid and with a step-by-step to technically meaningful for the new hearing aid Settings is also connected, wherein initially also settings must be found, with which the new hearing device largely conveys the subjective impression that the hearing aid wearer is used to his old hearing aid ago.

Methods are known in which a first setting of a new hearing aid after replacement of an old hearing aid is carried out computer-assisted, with customer or patient wishes After largely maintaining the usual transmission characteristics of the hearing aid are largely taken into account. As a result, the execution of the first parameter settings can be largely automated ( EP 1453 358 A2 ). Basically, these methods are based on an analysis of the first hearing aid to be detached and the provision of the analysis result in a computationally utilizable form, based on a determination of setting parameters of the second or new hearing aid with knowledge of the transmission characteristic of the first hearing aid and a subsequent performance of setting these determined parameters on the new hearing aid. In this case, the analysis of the first hearing device can be performed metrologically by providing input sound signals and detecting and evaluating output sound signals generated at the hearing device output. This method is relatively expensive, but is applicable to all sound pressure generating hearing aids. In other hearing aids would have to be evaluated instead of the output sound signals other Hörreizerzeugende outputs. The effort for the analysis of the first hearing aid can be reduced if instead of the complete measurement a provision of the existing parameter settings takes place and based on the knowledge of these settings with the help of a corresponding model, a simulation of the characteristics of the first hearing aid is made. For the automation of the parameter settings on the new hearing aid, however, it is absolutely necessary to know which parameter settings are to be made on the new hearing aid, so that the hearing impression and / or the transmission characteristic arises, largely those of the old hearing aid with the determined parameter settings and / or the determined transmission characteristic correspond. This knowledge is usually present when replacing hearing aids that are located within the same batch or a family of models from the same manufacturer, but is often not available if the hearing aid change is associated with a change of the provider, often aware of information for compatibility omitted or information that for a complete modeling of its hearing aid components would be inaccessible.

The object of the invention is thus to specify a possibility of being able to carry out a largely automated setting of parameters of a hearing aid taking into account a customer request and / or patient request based on a customary hearing device characteristic, even if the complete characteristic of the hearing aid is not known. This should be done with the least possible effort.

The object is achieved by a method having the features of claim 1. Claims 2 to 7 indicate advantageous embodiments of this method. Claim 8 relates to an apparatus for carrying out the method according to the invention and the claims 9 to 14 relate to advantageous embodiments of such a device.

The invention is based on the fact that parameter settings when replacing an original hearing aid, for example an old hearing aid, by a target hearing aid, for example a new hearing aid, are made in the form of a first-fit setting, which can be taken from a transformation database. The installation of this transformation database takes place in such a way that the transmission characteristic of the original hearing device is first determined for a discrete number of parameter sets which can be set on the original hearing aid to be detached. Subsequently, a parameter setting is performed on a target hearing device, which is to replace the original hearing aid, in which each sets an identical or at least similar transmission characteristics of the target hearing aid. The parameters required to achieve these characteristics on the target hearing device are captured and stored in the transformation database. This procedure is repeated for a number of possible target hearing aids that are to be considered for replacement of the original hearing aid to be replaced. For other hearing aids, the replacement is expected in analogous manner, a data acquisition be made. In this way, one obtains a transformation database, in which prior to the hearing aid exchanged parameter sets are stored, which has led to a desired characteristic depending on the type of original hearing aid to be replaced, the type of target hearing aid and the parameter set or the setting on the original hearing aid to be replaced that was last set, for example.

The determination of the parameters to be set on the target hearing aid to obtain a transmission characteristic corresponding to that of the original hearing aid at a particular parameter set may be performed iteratively in a manner known per se or carried out using possibly available modeling techniques on the basis of dynamic or static models.
Decisive for the profitability of the method according to the invention is that the number of possible parameter settings which are to be detected by measurement in the manner shown is limited so that the effort for the inventive primary determination of the settings required for a transition from one to another type of hearing aid as the basis of the transformation database remains justifiable. The number of possible combinations of parameters is limited in advance for hearing aids with a limited number of adjustable parameters that can only be varied in discrete steps. For hearing aids which have adjusting elements with which parameters can be adjusted continuously, it is advantageous for the method according to the invention to divide the setting range into discrete setting steps in order to limit the number of possible parameter combinations to a finite value. When determining the step size of these adjustment options, circumstances of a profitable data management, the storage capacity, but also aspects of the perceptibility of certain parameter adjustments or their effect on the transmission characteristic of the hearing aid concerned can be taken into account Find. For example, it can be determined by simple tests as to which absolute or relative value a parameter has to be adjusted in order to lead to certainly perceptible changes in the transmission characteristic of the hearing aid. From this, a step size for carrying out the method according to the invention can be determined, which is further than the step size of the smallest perceptible adjustment, which would average over a typical patient group, since a narrower step size would, for subjective reasons, generally not cause a perceptible improvement in the setting accuracy On the other hand, it would have to disproportionately increase the overhead of data management and data collection.

• Erstellen einer Transformationsdatenbank,
• Identifizieren eines Ursprungshörgerätes U_x einschließlich der Einstellung C_y dieses Ursprungshörgerätes, dessen Charakteristik am einzustellenden Zielhörgerät Z_z eingestellt werden soll,
• Abruf der Einstellung C (Z_z, U_x(C_y)), die laut Transformationsdatenbank am einzustellenden Zielhörgerät Z_z zu der Charakteristik führt, die der Charakteristik des identifizierten Ursprungshörgerätes U_x einschließlich der identifizierten Einstellung C_y entspricht, und
• Einstellung der abgerufenen Einstellung C (Z_z, U_x(C_y)) am einzustellenden Zielhörgerät Z_z
• wobei in der Transformationsdatenbank bei ihrer Erstellung Einstellungen abgelegt werden, die an einzustellenden Hörgeräten Z₁ bis Z_max unterschiedlichen Typs eingestellt werden müssen, um diesen Hörgeräten die Charakteristik anderer identifizierter Hörgeräte U₁ bis U_max mit identifizierten Einstellungen C₁ bis C_max zu verleihen.

In general, the invention consists in a method for setting a characteristic of a hearing device on another hearing device, comprising the steps:

• Creating a transformation database,
• Identifying an originating hearing device U _x including the setting C _{y of} this original hearing aid whose characteristic is to be set on the target hearing aid Z _z to be set,
• Retrieving the setting C (Z _z, U _x (C _y)), which leads, according transformation database on the adjusted target hearing device Z _z to the characteristic corresponding to the characteristic of the identified source hearing device U _x including the identified setting C _y, and
• Setting the retrieved setting C (Z _z, U _x (C _y)) at the adjusted target hearing device Z _z
• wherein in the transformation database in their creation settings are stored, which must be set to be adjusted hearing aids Z ₁ to Z _max different types to give these hearing aids the characteristic of other identified hearing aids U ₁ to U _max with identified settings C ₁ to C _max .

The invention can also be applied if in a transformation database not all possible combinations of Hearing aids and reproducible characteristics in the form of stored records are prepared. There is already considerable benefit if individual, but particularly frequently or with high probability, these combinations are retrievable in the transformation database in the form of the data sets generated according to the invention. To create the transformation database, at least one original hearing device U _{x is} acoustically measured at at least one setting C _y . At least one target hearing device Z _for the setting C (Z _z, U _x (C _y)) is determined, wherein the target hearing device Z _z has a characteristic similar to that characteristic which has been determined by the acoustic measurement of the source hearing device U _x. The parameters of this setting C (Z _z , U _x (C _y )) are associated with the type U _{x of} the original hearing aid, the measured setting C _{y of} the original hearing aid and the type Z _{z of} the target hearing aid and stored as a record.

Of course, the value of the transformation database increases with their database, so the typical approach is that _x several different settings C _y are measured acoustically to the plant transformation database at multiple origin hearing aids U, at a plurality of objective hearing aids Z _z settings C (Z _z, U _x (C _y )) are determined, in which the target hearing aids Z _{z have} a characteristic which corresponds in each case to the characteristic which was determined by the acoustic measurement of the original hearing aids U _x , and the parameters of the settings C (Z _z , U _x (C _y )) are linked to the type U _{x of} the original hearing aids, the measured settings C _{y of} the original hearing aids and the type Z _{z of} the target hearing aids and stored as data records.

The invention can be used in particular in the repair of damaged hearing aids. In fact, with damaged hearing aids, it is often no longer possible to precisely determine the hearing aid characteristic due to the damage, so that a costly readjustment would be required after the repair. This can be done with the invention Method in which the characteristic can be reproduced via the transformation database, easily solve.

Fig. 1

einen Programmablaufplan des erfindungsgemäßen Verfahrens während der Erstellung der Transformations-datenbank;

Fig. 2

einen Programmablaufplan des erfindungsgemäßen Verfahrens während der Anpassung eines Hörgerätes;

Fig. 3

eine Anordnung zur erfindungsgemäßen Datenerfassung während der Anlage der Transformationsdatenbank;

Fig. 4

eine Anordnung zur erfindungsgemäßen Anpassung eines Hörgerätes; und

Fig. 5

eine weitere Anordnung zur erfindungsgemäßen Anord-nung eines Hörgerätes.

In embodiments, the invention is explained in detail.
Show it:

Fig. 1

a program flowchart of the method according to the invention during the creation of the transformation database;

Fig. 2

a program flowchart of the method according to the invention during the adaptation of a hearing aid;

Fig. 3

an arrangement for data acquisition according to the invention during the installation of the transformation database;

Fig. 4

an arrangement for adapting a hearing aid according to the invention; and

Fig. 5

a further arrangement for the inventive arrangement of a hearing aid.

Fig. 1 shows a program flowchart of the method according to the invention during the creation of the transformation database. In a first step, an original hearing device U _{x is} selected, the replacement of which is to be prepared by another hearing aid. At this originating hearing aid, a variation of possible settings is made. The individual setting will be referred to below as C _y , the settings C _y depending on the technical capabilities of the original _hearing aid U _x , which is why the respective setting can be completely described by U _x (C _y ). The variety of possible settings results from the number of independently variable parameters or manipulated variables as well as the number of steps in which these parameters or manipulated variables can be adjusted. In the case of continuously adjustable manipulated variables, a division of the Adjustment range in a finite number of discrete steps necessary. For each of the settings U _x (C _y ) made, a characteristic of the original hearing aid U _{x is} determined in a further step, which describes its acoustic behavior. For this purpose, in particular the transmission and amplification characteristics of the hearing aid are suitable. In a further step, the selection of a target hearing aid Z _z , which is considered for the replacement of the original hearing aid U _x into consideration. At this target hearing device such a setting of its adjustable parameters or manipulated variables is made by suitable measures, which lead to a characteristic of the target hearing aid Z _z , which corresponds to the characteristic of the original hearing U _x at the setting C _y . Suitable measures which lead to the desired setting on the target hearing aid Z _z include different forms of parameter variations, which can facilitate or facilitate a targeted finding of a given characteristic. For this purpose, in particular a continuous measurement of the target hearing device to be adjusted is required in order to be able to understand the effect of the adjustments made. After finding the target setting, which leads to a characteristic of the target hearing aid Z _z that of the original hearing U _x (C _y ) with the corresponding setting is equal to or at least only slightly different from this, the insignificance of the deviation are set by specifying a tolerance range qualified can, in a further step, the required to achieve this characteristic setting C (Z _z , U _x (C _y )) is read out on the target hearing aid Z _z and stored in a transformation database. From this transformation database the setting C (Z _z, U _x (C _y)) can always be read out and _{find, for} use for a presetting of a target hearing device Z, when this target hearing device is intended to replace an origin hearing aid U _x with the setting C _y. The procedure for collecting the values required for the transformation database is repeated for each target hearing device Z _z up to a maximum number Z _max . The value Z _{max is} determined, for example, from the number of hearing aid models to be considered that are responsible for a Replacement of older hearing aids come into question. Furthermore, the complete procedure for each of these potentially removable hearing aids for each setting C _y to go through and repeating in the eventual replacement of different original hearing aids U _x again completely for each of these original hearing aids.

As a result of creating the invention, the transformation database various settings C (Z _z, U _x (C _y)) found stored in parameterized form in the database, which tested for each change from one type of hearing device U _x to another type of hearing device Z _z for each setting C _y each source hearing device U _x U _x on the original hearing device replacing target hearing device Z _z are set. The effort of data collection is initially comparable with a setting of a hearing aid based on a given characteristic without the use of a database. However, it decreases immediately if an exchange is repeated with appropriate specifications regarding the characteristic and with the same type of hearing aid. Another advantage of the installation of the transformation database is that it can be largely independent of the hearing aid wearer under laboratory conditions and is already available in prepared form during the actual adaptation of a new hearing aid to the patient. Another advantage of having a transformation database in accordance with the invention is a significant market advantage over hearing aids that are shipped with model-dependent transformation data.

Fig. 2 shows a program flowchart of the method according to the invention during the adaptation of a hearing aid. The case of an adaptation of a hearing aid after the replacement of another hearing aid on the patient is considerably simplified by the available transformation database. In a first step, the input of the type of the original hearing device U _x , which at this hearing aid at the time of replacement, setting C _y and the type of target hearing Z _z , which the original hearing U U _{x in the} future replace. Subsequently, a read-out of the settings C (Z _z , U _x (C _y )) stored with respect to these inputs takes place. Due to this record a setting making the C (Z _z, U _x (C _y)) at the target Z _z hearing aid is possible, which can be manual or automated. Due to the above-mentioned discretization of the control ranges of the control variables, it follows inevitably that a setting according to the invention using the transformation database can not be arbitrarily accurate enough to retrieve a familiar characteristic of a hearing aid. If the achievable accuracy in the reproduction of the accustomed acoustic characteristic by the future-to-wear target hearing aid Z _{z is} not perceived as sufficient, the setting C (Z _z , U _x (C _y )) obtained according to the invention can be used as a first-fit setting, from which a metrologically accompanied fine-tuning can be made, but this already significantly reduces the effort for this fine-tuning compared to other methods according to the prior art by the generally small required deviation from the first-fit setting. However, this does not always provide an option, since many hearing aid wearers can easily achieve the achievable accuracy without further fine-tuning.

Fig. 3 shows an arrangement for data acquisition according to the invention during the installation of the transformation database. The arrangement comprises an original hearing aid 1 to be replaced, whose transmission and amplification characteristics can be determined. The determination of the transmission and amplification characteristics takes place with the aid of a sound-generating device in the form of a loudspeaker 2 and a microphone 3, which is arranged directly in front of the sound generator of the original hearing device 1.
The arrangement further comprises a target hearing device 4, which is to replace the original hearing aid 1 to be replaced. The target hearing device 4 has an electronically controllable setting unit 5, via which a computer-assisted setting of various parameters can be made. In immediate Furthermore, a sound-generating device in the form of a loudspeaker 6 and a microphone 7 are arranged near the target hearing device 4, with the aid of which the transmission and amplification characteristics of the target hearing device 4 can be determined. The loudspeakers 2 and 6 as well as the microphones 3 and 7 are connected to a measuring circuit 8 which can control the loudspeakers 2 and 6 so that they can generate defined sound levels at given frequencies, while the microphones 3 and 7 respectively control the acoustic response of the hearing aids Detect 1 and 4 to the predetermined sound levels and forward their output signals of the measuring circuit 8. The measuring circuit 8 is connected to a computer 9, in which the output signals of the microphones 3 and 7 can be evaluated, and determines the specifications with respect to the control of the speakers 2 and 6 and forwards them to the measuring circuit 8. The computer 9 is further connected to a driver circuit 10. The driver circuit 10 makes it possible to carry out an automated adjustment of the adjustable parameters or manipulated variables of the target hearing device 4 via a control of the electronically controllable setting unit 5. With such an arrangement, the creation of the transformation database according to the invention can be carried out by exchanging the hearing aids 1 and 4 step by step for different types. The variation of the settings on the hearing aid 1 is made in the present embodiment by hand via adjusting elements 11. Alternatively, however, an automated variation is possible if the original hearing device 1 has corresponding electronically controllable actuation units analogous to the target hearing device 4.

For a given setting U _x (C _y ) on the original hearing device 1, the transmission and amplification characteristics of the original hearing device 1 are determined by a corresponding sonication and measurement with the aid of the loudspeaker 2, the microphone 3, the measuring circuit 8 and the computer 9. Subsequently, an automated parameter variation takes place at the target hearing device 4 until there is an identical or similar one Setting transmission and amplification characteristics, which can be checked in an analogous manner by interaction of the speaker 6, the microphone 7, the measuring circuit 8 and the computer 9. When the desired transmission and amplification characteristics are reached at the target hearing device 4, the setting C (Z _z , U _x (C _y )) is read out, whereby the readout can be automated via the electronically controllable control unit 5, which for this purpose has a corresponding interface features. The read-out setting C (Z _z , U _x (C _y )) is stored in the transformation database on the computer 9.

Fig. 4 shows an arrangement for adapting a hearing aid according to the invention. For this adaptation of a target hearing aid 4 is an input of the type U _{x of} the original hearing aid 1, the existing at the time of replacement of the original hearing aid 1 setting C _y and the type Z _{z of} the target hearing aid 4 to be adjusted required. From the transformation database the computer determines the setting C (Z _z, U _x (C _y)), which must be performed on the target hearing device 4, in order to achieve this a transfer characteristic equal to that which existed the last at the origin of the hearing aid. 1 Making the setting on the target hearing aid 4 can be done automatically. For this purpose, the computer 9 is connected to a driver circuit 10, which cooperates with an electronically controllable setting unit 5. A survey of hearing aids 1, 4 is superfluous in this example by accessing the transformation database.

Fig. 5 shows a further arrangement for the adaptation of a hearing aid according to the invention. This first comprises analogous to the exemplary embodiment according to FIG Fig. 4 the technical resources required for exclusively database-assisted adaptation of the target hearing aid 4. In addition, other means are included, which are required for an acoustic measurement of the target hearing aid 4. In detail, these means comprise a measuring circuit 8 connected to the computer 9 and connected to a loudspeaker 6 and a microphone 7 is. The setting C (Z _z , U _x (C _y )) obtained in accordance with the invention is used in this case as a first-fit setting, from which a metrologically accompanied fine-tuning is carried out. This fine-tuning leads to a characteristic of the target hearing device 4, for which no pre-checked setting C (Z _z , U _x (C _y )) is stored in the transformation database. However, a large part of the effort for setting this characteristic is eliminated by the setting according to the invention of the first-fit setting C (Z _z , U _x (C _y )). In addition, it is possible via control elements 12 to directly influence the adaptation of the target hearing device 4.

The handling of the stored data is advantageously facilitated if the transformation database is structured in such a way that the query of the data can take place via an input mask.

Claims (14)

A method for adjusting a characteristic of a hearing aid on another hearing aid, comprising the steps: - create a transformation database, Identifying an original hearing aid (U _x , 1) including the setting (C _y ) of this original hearing aid whose characteristic is to be set on the target hearing aid (Z _z , 4) to be set, Calling up the setting C (Z _z , U _x (C _y )), which, according to the transformation database, leads to the target hearing device (Z _z , 4) to be set, the characteristic of the identified original hearing aid (U _x , 1) including the identified setting C _y corresponds, and - Setting the retrieved setting C (Z _z , U _x (C _y )) on the target hearing aid to be set (Z _z , 4) - In the transformation database settings are stored during their creation, which must be set to be adjusted hearing aids (Z ₁ to Z _max ) of different types to these hearing aids the characteristic of other identified hearing aids (U ₁ to U _max ) with identified settings (C ₁ to give C _max ). A method according to claim 1, characterized in that for the creation of the transformation database at least one hearing aid (U _x , 1) at least one setting (C _y ) is measured acoustically, at least one target hearing aid (Z _z , 4) the setting C (Z _z , U _x (C _y )) is determined, in which the target hearing aid (Z _z , 4) has a characteristic which is similar to the characteristic determined by the acoustic measurement of the original hearing aid (U _x , 1) and the parameters of Setting C (Z _z , U _x (C _y )) associated with the type (U _x ) of the original hearing aid, the measured setting (C _y ) of the original hearing aid and the type (Z _z ) of the target hearing aid and stored as a record. A method according to claim 1 or 2, characterized in that for the creation of the transformation database at least an original hearing aid (U _x , 1) several different settings (C _y ) are measured acoustically, at least one target hearing aid (Z _z , 4) the settings C (Z _z , U _x (C _y )) are determined, in which the target hearing (Z _z , 4) has a characteristic that corresponds in each case to the characteristic determined by the acoustic measurement of the original hearing aid (U _x , 1) and the parameters of the settings C (Z _z , U _x (C _y )) the type (U _x ) of the original hearing aid, the measured settings (C _y ) of the original hearing aid and the type (Z _z ) of the target hearing aid are linked and stored as records. Method according to one of Claims 1 to 3, characterized in that a plurality of different settings (C _y ) are acoustically measured on a plurality of original hearing aids (U _x , 1) for installation of the transformation database, the settings C on at least one target hearing device (Z _z , 4) (Z _z , U _x (C _y )) are determined in which the target hearing aid (Z _z , 4) has a characteristic which in each case is similar to the characteristic which was determined by the acoustic measurement of the original hearing aids (U _x , 1) and the parameters of the settings C (Z _z , U _x (C _y )) associated with the type (U _x ) of the original hearing aids, the measured settings (C _y ) of the original hearing aids and the type (Z _z ) of the target hearing aid and stored as records become. Method according to one of Claims 1 to 4, characterized in that a plurality of different settings (C _y ) are acoustically measured on a plurality of original hearing aids (U _x , 1) for setting up the transformation database, the settings C (C _z , 4) _{for a} plurality of target hearing aids. Z _z , U _x (C _y )) are determined, in which the target hearing aids (Z _z , 4) have a characteristic that is similar to each of the characteristic determined by the acoustic measurement of the original hearing aids (U _x , 1), and the parameters of the settings C (Z _z , U _x (C _y )) with the type (U _x ) of the original hearing aids, the measured settings (C _y ) of the original hearing aids and the type (Z _z ) of the target hearing aids are linked and stored as records. Method according to one of Claims 1 to 5, characterized in that at least one original hearing device (U _x , 1) is acoustically measured for all settings (C ₁ to C _max ) available to it. Method according to one of claims 1 to 6, characterized in that the setting C (Z _z , U _x (C _y )) is used as a first-fit adjustment, which is then subjected to a fine-tuning. Device for setting a characteristic of a hearing device on another hearing device, comprising at least one original hearing device (U _x , 1), at least one target hearing device (Z _z , 4), means for determining the characteristic of the original hearing device (U _x , 1), means for adaptation the characteristic of the target hearing device (Z _z , 4) to the characteristic of the original hearing aid (U _x , 1), means for determining the required for the adaptation of the characteristic of the target hearing aid (Z _z , 4) setting C (Z _z , U _x (C _y )) and means for storing the particular settings C (Z _z , U _x (C _y )). Device according to claim 8, characterized in that the means for determining the characteristic of the source hearing device (U _x, 1) means (2, 3, 8, 9) for acoustic measurement of the source hearing device (U _x, 1) include. Apparatus according to claim 8 or 9, characterized in that the means for adjusting the characteristic of the target hearing aid (Z _z , 4) means (6, 7, 8, 9) for acoustic measurement of the target hearing aid (Z _z , 4) and means (5 , 9, 10) for varying the setting of the target hearing aid (Z _z , 4). Device according to one of claims 8 to 10, characterized in that the means for determining the setting C (Z _z , U _x (C _y )) of the target hearing aid (Z _z , 4) comprise an interface (5) for reading the setting. Device according to one of claims 8 to 11, characterized in that the means for storing the specific settings C (Z _z , U _x (C _y )) comprise a computer (9) on which the determined settings C (Z _z , U _x (C _y )) in the form of a transformation database can be stored and queried. Apparatus according to claim 12, characterized in that the transformation database is structured so that the query of the data can be done via an input mask. Apparatus according to claim 12 or 13, characterized in that means are included which, after reading a setting C (Z _z , U _x (C _y )) from the transformation database, can effect this setting on the target hearing device (Z _z , 4).

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