EP2023668B1 - Hearing aid with visualised psycho-acoustic magnitudes and corresponding method - Google Patents

Hearing aid with visualised psycho-acoustic magnitudes and corresponding method Download PDF

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Publication number
EP2023668B1
EP2023668B1 EP08104718.5A EP08104718A EP2023668B1 EP 2023668 B1 EP2023668 B1 EP 2023668B1 EP 08104718 A EP08104718 A EP 08104718A EP 2023668 B1 EP2023668 B1 EP 2023668B1
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EP
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Prior art keywords
hearing
psychoacoustic
processing device
signal processing
visualization
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EP08104718.5A
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German (de)
French (fr)
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EP2023668A3 (en
EP2023668A2 (en
Inventor
Matthias Dr. Fröhlich
Matthias Dr. Latzel
Henning Dr. Puder
Andre Steinbuss
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Sivantos Pte Ltd
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Sivantos Pte Ltd
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    • 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
    • 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
    • H04R25/552—Binaural
    • 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

Definitions

  • the present invention relates to a hearing system comprising a hearing device with a signal processing device for processing an input sound to an output sound, wherein in the signal processing means a perceptive model is implemented, with respect to the output sound a psychoacoustic variable can be provided. Moreover, the present invention relates to a corresponding method for operating a hearing system.
  • a hearing aid is also understood to mean a headset, headphones and other systems that can be worn on the ear.
  • Hearing aids are portable hearing aids that are used to care for the hearing impaired.
  • different types of hearing aids such as behind-the-ear hearing aids (BTE), hearing aid with external receiver (RIC: receiver in the canal) and in-the-ear hearing aids (ITE), e.g. Concha hearing aids or canal hearing aids (ITE, CIC).
  • BTE behind-the-ear hearing aids
  • RIC hearing aid with external receiver
  • ITE in-the-ear hearing aids
  • ITE in-the-ear hearing aids
  • ITE in-the-ear hearing aids
  • ITE concha hearing aids or canal hearing aids
  • the hearing aids listed by way of example are worn on the outer ear or in the ear canal.
  • bone conduction hearing aids, implantable or vibrotactile hearing aids are also available on the market. The stimulation of the damaged hearing takes place either mechanically or electrically.
  • Hearing aids have in principle as essential components an input transducer, an amplifier and an output transducer.
  • the input transducer is usually a sound receiver, z. As a microphone, and / or an electromagnetic receiver, for. B. an induction coil.
  • the output transducer is usually used as an electroacoustic transducer, z. As miniature speaker, or as an electromechanical transducer, z. B. bone conduction, realized.
  • the amplifier is usually integrated in a signal processing unit. This basic structure is in FIG. 1 shown using the example of a behind-the-ear hearing aid. In a hearing aid housing 1 for carrying behind the ear, one or more microphones 2 for receiving the sound from the environment are installed.
  • a signal processing unit 3 which is also integrated in the hearing aid housing 1, processes the microphone signals and amplifies them.
  • the output signal of the signal processing unit 3 is transmitted to a loudspeaker or earpiece 4, which outputs an acoustic signal.
  • the sound is optionally transmitted via a sound tube, which is fixed with an earmold in the ear canal, to the eardrum of the device carrier.
  • the power supply of the hearing device and in particular of the signal processing unit 3 is carried out by a likewise integrated into the hearing aid housing 1 battery. 5
  • the publication US 2002/0111745 A1 discloses a portable hearing aid system.
  • parameters of a hearing response can be obtained by audiometer.
  • a response prediction is used to perform a basic setting of a hearing aid.
  • EP 0 661 905 A2 a method for adjusting a hearing aid and a corresponding hearing aid.
  • a perceptive model is used to obtain a psychoacoustic variable, in particular loudness, on the one hand for a norm group and on the other hand for a single individual.
  • setting data are determined, with which the signal transmission to a hearing device is designed or adjusted ex situ or conducted in situ.
  • At least one hearing dimension such. B. the loudness perception, made visible by means of an image by changing at least one image parameter, such as brightness.
  • a loudness curve obtained on the basis of audiometric measurements is used to calculate the Control brightness distribution in an image.
  • several loudness curves are determined in different frequency ranges and thus controls the color design of an image. The visual support makes it much easier for the acoustician to find an optimal setting.
  • SII speech intelligibility index
  • the hearing aid care of people with multiple disabilities or the care of children is essentially based on the fact that the caregivers are involved in the fitting process and also in the subsequent aftercare process.
  • these persons play an essential role in the daily environment of the hearing aid wearer and may also fit parameters of a hearing aid, such as a hearing aid.
  • a hearing aid As the volume of the hearing aid for the hard of hearing. They are only dependent on experience. However, they do not know which problem the deaf person actually has. Thus their interventions in the hearing aid setting are not necessarily correct.
  • the object of the present invention is thus to facilitate the adjustment or adaptation of a hearing device for a user or for a user caring for the user.
  • a hearing system which has a hearing device with a signal processing device for processing an input sound to an output sound and an analysis device for analyzing a current hearing situation and a remote control with a visualization device, wherein a perceptive model is implemented in the signal processing device or in a data processing device of the remote control with which a psychoacoustic variable can be provided with respect to the output sound wherein the visualization device is connected to the signal processing device or the processing device to visualize a value of the psychoacoustic quantity.
  • At least one psychoacoustic reference value can be generated independently of a setting of the signal processing device, which is visually displayed by the visualization device together with a psychoacoustic value relating to a current setting of the signal processing device.
  • the invention provides a method for operating a hearing system with a hearing device and a visualization device, comprising the following steps: processing an input sound to an output sound in the hearing aid, providing a psychoacoustic quantity in relation to the output sound using a perceptive model by the hearing aid or by a processing device connected to the visualization device, visualizing a value of the psychoacoustic variable by the visualization device, and analyzing a current hearing situation.
  • At least one psychoacoustic reference value can be generated independently of a setting of the signal processing device, which by the visualization device together with a psychoacoustic Value regarding an actual setting of the signal processing device is displayed optically.
  • the signal processing device supplies the psychoacoustic variable in the hearing aid, it is not necessary to transmit a broadband signal to an external device for visualization, which first calculates a psychoacoustic variable from it using a perceptual model.
  • the hearing device comprises the remote control, which contains the visualization unit and one or the processing device. Since hearing aids are operated in many cases with a remote control, thus no additional device for the visualization is necessary, which facilitates the handling of the hearing aid.
  • the hearing device and the remote control each have a communication device with which the respective current value of the psychoacoustic variable provided by the signal processing device can be transmitted from the hearing device to the remote control for optical representation.
  • a plurality of psychoacoustic variables can be provided by the signal processing device or the processing device and the corresponding values can be visualized by the visualization device. If necessary, several values can be visualized simultaneously. Thus, for example, sound quality and speech intelligibility can be simultaneously visualized, so that the user or the caregiver can find a compromise of these variables if these influence each other in opposite directions.
  • the hearing device comprises an analysis device in order to analyze a current auditory situation, so that at least one psychoacoustic reference value can be generated independently of a setting of the signal processing device from corresponding analysis values with the perceptive model of the signal processing device or processing device, which can be generated by the visualization device together with a psychoacoustic Value regarding an actual setting of the signal processing device is displayed optically.
  • the current psychoacoustic value it is also possible to visually represent, for example, a maximum value and a minimum value, possibly also an average value resulting from the current auditory situation, whereby the person performing the setting obtains objective clues for the attitude.
  • a further hearing device for supplying the left and right ear of a user is provided in addition to the hearing aid, wherein the signal processing device is arranged in one of the two hearing aids and the perceptive model on the basis of signals of both hearing aids a psychoacoustic size regarding binaural perception.
  • the signal processing device is arranged in one of the two hearing aids and the perceptive model on the basis of signals of both hearing aids a psychoacoustic size regarding binaural perception.
  • a hearing system with a first hearing aid 10 which has an internal signal processing device to convert an input sound E1 into an output sound A1.
  • the signal processing device is symbolized by a microphone 11, an amplifier module 12 and a handset 13.
  • the amplifier module 12 which includes a digital processor, a perceptive model 14 is implemented.
  • the perceptive model 14 psychoacoustic characteristics such as loudness, pleasantness, listening effort and others can be provided depending on the output signal A1 or a correspondingly modeled signal.
  • Such a psychoacoustic characteristic is in FIG. 2 marked with P. It can be wired or wirelessly transmitted to a computer, TV or other visualization device.
  • the calculation of the psychoacoustic variable in the hearing device is expediently carried out so that the preferably wireless transmission of the data can take place at a low bit rate. Otherwise, the analysis is external, z. B. in the remote control made, first the entire signal must be transmitted with high bandwidth.
  • the psychoacoustic quantity P or the corresponding value is transmitted from the hearing aid 10 via a wireless interface, not shown, to a remote control 15.
  • a remote control 15 This has in addition to some controls 16 a small screen 17 as a visualization device.
  • a one-dimensional display bar consisting of a series of LEDs or the like is sufficient for visualization.
  • the screen 17 is capable of displaying the values of several psychoacoustic Represent sizes P, which are supplied by the hearing aid 10.
  • the amplifier component 12 of the hearing device 10 is also able to analyze or classify the current hearing situation.
  • the hearing aid can send reference data R to the remote control 15 with respect to one or more psychoacoustic dimensions, so that the display can be scaled, for example, especially for the hearing situation.
  • the reference data R can also be used to give the user a clue in which area the respective acoustic variable can be changed at all in the listening situation.
  • a hearing aid wearer is hearing-impaired on both sides, then it can additionally be supplied binaurally with a second hearing aid 20.
  • FIG. 2 is such a second hearing aid 20 also shown symbolically.
  • the first hearing device 10 has a signal processing device consisting of a microphone 21, an amplifier module 22 and a receiver 23.
  • a perceptive model which transmits a psychoacoustic variable to the remote control 15 for visualization could also be implemented in the amplifier module 22.
  • the psychoacoustic variable could also be transmitted from the second hearing device 20 to the first hearing device 10.
  • This monaural psychoacoustic quantity may then possibly have a monaural psychoacoustic size of the first hearing device 10 with the aid of a perceptual model for binaural perception for calculating a binaural psychoacoustic Size be used. The latter is then transferred back to the remote control. Thus, as desired monaural and binaural sizes can be transmitted to the representation on the remote control to this.
  • the second hearing aid 20 has no perceptive model and only a signal S representing the output sound or the output signal A2 is transmitted to the first hearing aid 10. There it is processed in the perceptual model for binaural perception with other present sizes to one or more psychoacoustic variables, which are then transmitted to the remote control 15 for visualization.
  • the perceptive model may also be implemented in a processing device of the remote control 15. Then, the or the corresponding signals representing the output signals A1, A2 are to be transmitted directly to the remote control 15. This then creates the psychoacoustic data to be visualized.
  • the variables offered on the perception of the hearing impaired persons may use caring persons to possibly change the setting of the hearing system. Alternatively, it is also possible to use this information to actively change the situation in order to positively alter these psychoacoustic parameters. For example, another seat may be selected for a hearing-impaired child in a school.
  • the presentation of psychoacoustic parameters offers the possibility of assisting the hearing impaired in an audio therapy.
  • the hearing aid wearer can himself observe the psychoacoustic quantities presented and if necessary to actively adapt your own acoustic environment. For example, he can choose a different seat in a hall or close an open window.
  • Particularly useful are reference data that are visualized with. They indicate what could actually be achieved in the various psychoacoustic dimensions in the present acoustic situation or in a generic, comparable situation.

Description

Die vorliegende Erfindung betrifft ein Hörsystem umfassend ein Hörgerät mit einer Signalverarbeitungseinrichtung zur Verarbeitung eines Eingangsschalls zu einem Ausgangsschall, wobei in der Signalverarbeitungseinrichtung ein perzeptives Modell implementiert ist, mit dem bezogen auf den Ausgangsschall eine psychoakustische Größe bereitstellbar ist. Darüber hinaus betrifft die vorliegende Erfindung ein entsprechendes Verfahren zum Betreiben eines Hörsystems. Unter einem Hörgerät wird hier auch ein Headset, Kopfhörer und andere am Ohr tragbare Systeme verstanden.The present invention relates to a hearing system comprising a hearing device with a signal processing device for processing an input sound to an output sound, wherein in the signal processing means a perceptive model is implemented, with respect to the output sound a psychoacoustic variable can be provided. Moreover, the present invention relates to a corresponding method for operating a hearing system. A hearing aid is also understood to mean a headset, headphones and other systems that can be worn on the ear.

Hörgeräte sind tragbare Hörvorrichtungen, die zur Versorgung von Schwerhörenden dienen. Um den zahlreichen individuellen Bedürfnissen entgegenzukommen, werden unterschiedliche Bauformen von Hörgeräten wie Hinter-dem-Ohr-Hörgeräte (HdO), Hörgerät mit externem Hörer (RIC: receiver in the canal) und In-dem-Ohr-Hörgeräte (IdO), z.B. auch Concha-Hörgeräte oder Kanal-Hörgeräte (ITE, CIC), bereitgestellt. Die beispielhaft aufgeführten Hörgeräte werden am Außenohr oder im Gehörgang getragen. Darüber hinaus stehen auf dem Markt aber auch Knochenleitungshörhilfen, implantierbare oder vibrotaktile Hörhilfen zur Verfügung. Dabei erfolgt die Stimulation des geschädigten Gehörs entweder mechanisch oder elektrisch.Hearing aids are portable hearing aids that are used to care for the hearing impaired. In order to meet the numerous individual needs, different types of hearing aids such as behind-the-ear hearing aids (BTE), hearing aid with external receiver (RIC: receiver in the canal) and in-the-ear hearing aids (ITE), e.g. Concha hearing aids or canal hearing aids (ITE, CIC). The hearing aids listed by way of example are worn on the outer ear or in the ear canal. In addition, bone conduction hearing aids, implantable or vibrotactile hearing aids are also available on the market. The stimulation of the damaged hearing takes place either mechanically or electrically.

Hörgeräte besitzen prinzipiell als wesentliche Komponenten einen Eingangswandler, einen Verstärker und einen Ausgangswandler. Der Eingangswandler ist in der Regel ein Schallempfänger, z. B. ein Mikrofon, und/oder ein elektromagnetischer Empfänger, z. B. eine Induktionsspule. Der Ausgangswandler ist meist als elektroakustischer Wandler, z. B. Miniaturlautsprecher, oder als elektromechanischer Wandler, z. B. Knochenleitungshörer, realisiert. Der Verstärker ist üblicherweise in eine Signalverarbeitungseinheit integriert. Dieser prinzipielle Aufbau ist in FIG 1 am Beispiel eines Hinter-dem-Ohr-Hörgeräts dargestellt. In ein Hörgerätegehäuse 1 zum Tragen hinter dem Ohr sind ein oder mehrere Mikrofone 2 zur Aufnahme des Schalls aus der Umgebung eingebaut. Eine Signalverarbeitungseinheit 3, die ebenfalls in das Hörgerätegehäuse 1 integriert ist, verarbeitet die Mikrofonsignale und verstärkt sie. Das Ausgangssignal der Signalverarbeitungseinheit 3 wird an einen Lautsprecher bzw. Hörer 4 übertragen, der ein akustisches Signal ausgibt. Der Schall wird gegebenenfalls über einen Schallschlauch, der mit einer Otoplastik im Gehörgang fixiert ist, zum Trommelfell des Geräteträgers übertragen. Die Stromversorgung des Hörgeräts und insbesondere die der Signalverarbeitungseinheit 3 erfolgt durch eine ebenfalls ins Hörgerätegehäuse 1 integrierte Batterie 5.Hearing aids have in principle as essential components an input transducer, an amplifier and an output transducer. The input transducer is usually a sound receiver, z. As a microphone, and / or an electromagnetic receiver, for. B. an induction coil. The output transducer is usually used as an electroacoustic transducer, z. As miniature speaker, or as an electromechanical transducer, z. B. bone conduction, realized. The amplifier is usually integrated in a signal processing unit. This basic structure is in FIG. 1 shown using the example of a behind-the-ear hearing aid. In a hearing aid housing 1 for carrying behind the ear, one or more microphones 2 for receiving the sound from the environment are installed. A signal processing unit 3, which is also integrated in the hearing aid housing 1, processes the microphone signals and amplifies them. The output signal of the signal processing unit 3 is transmitted to a loudspeaker or earpiece 4, which outputs an acoustic signal. The sound is optionally transmitted via a sound tube, which is fixed with an earmold in the ear canal, to the eardrum of the device carrier. The power supply of the hearing device and in particular of the signal processing unit 3 is carried out by a likewise integrated into the hearing aid housing 1 battery. 5

Die Druckschrift US 2002/0111745 A1 offenbart ein tragbares Höranalysesystem. Dabei können Parameter einer Hörantwort durch Audiometer gewonnen werden. Eine Antwortvorhersage wird benutzt, um eine Grundeinstellung eines Hörgeräts durchzuführen.The publication US 2002/0111745 A1 discloses a portable hearing aid system. In this case, parameters of a hearing response can be obtained by audiometer. A response prediction is used to perform a basic setting of a hearing aid.

Des Weiteren beschreibt die Druckschrift EP 0 661 905 A2 ein Verfahren zur Anpassung eines Hörgeräts und ein entsprechendes Hörgerät. Mit einem perzeptiven Modell wird eine psychoakustische Größe, insbesondere die Lautheit, einerseits für eine Norm-Personengruppe und andererseits für ein einzelnes Individuum gewonnen. Auf der Grundlage der Differenz der beiden psychoakustischen Größen werden Stellangaben ermittelt, womit die Signalübertragung an einem Hörgerät ex situ konzipiert oder eingestellt wird bzw. in situ geführt wird.Furthermore, the document describes EP 0 661 905 A2 a method for adjusting a hearing aid and a corresponding hearing aid. A perceptive model is used to obtain a psychoacoustic variable, in particular loudness, on the one hand for a norm group and on the other hand for a single individual. On the basis of the difference between the two psychoacoustic variables, setting data are determined, with which the signal transmission to a hearing device is designed or adjusted ex situ or conducted in situ.

Ferner ist in der Druckschrift EP 1 676 529 A1 ein Verfahren zum Visualisieren des Hörvermögens bzw. des Hörempfindens beschrieben. Dabei wird mindestens eine Hördimension, wie z. B. die Lautheitswahrnehmung, mittels eines Bildes sichtbar gemacht durch Verändern mindestens eines Bildparameters, wie beispielsweise der Helligkeit. Eine aufgrund audiometrischer Messungen gewonnene Lautheitskurve wird herangezogen, um die Helligkeitsverteilung in einem Bild zu steuern. Gegebenenfalls werden auch mehrere Lautheitskurven in unterschiedlichen Frequenzbereichen ermittelt und damit die Farbgestaltung eines Bilds gesteuert. Durch die visuelle Unterstützung ist es für den Akustiker wesentlich einfacher möglich, eine optimale Einstellung zu finden.Furthermore, in the document EP 1 676 529 A1 a method for visualizing the hearing or Hörempfindens described. In this case, at least one hearing dimension, such. B. the loudness perception, made visible by means of an image by changing at least one image parameter, such as brightness. A loudness curve obtained on the basis of audiometric measurements is used to calculate the Control brightness distribution in an image. Optionally, several loudness curves are determined in different frequency ranges and thus controls the color design of an image. The visual support makes it much easier for the acoustician to find an optimal setting.

In der US 2005/0141737 A1 wird vorgeschlagen, in einem Hörgerät anhand des Spektrums eines Sprachsignals einen standardisierten Sprachverständlichkeitsindex ("speech intelligibility index", SII) zu berechnen, welcher ein objektives Maß für die Verständlichkeit der im Sprachsignal enthaltenen Phoneme bildet, und somit insbesondere für ein Fitting des Hörgerätes beim Hörgeräteakustiker herangezogen werden kann, um für einzelne Hörsituationen eine bzgl. des SII optimierte Hörgeräteeinstellung zu erzielen.In the US 2005/0141737 A1 It is proposed to calculate in a hearing aid on the basis of the spectrum of a speech signal a standardized speech intelligibility index (SII), which forms an objective measure for the intelligibility of the phonemes contained in the speech signal, and thus in particular for a fitting of the hearing aid in the hearing care professional can be used to achieve for individual listening situations with respect to the SII optimized hearing aid setting.

Die Hörgeräteversorgung von Menschen mit Mehrfachbehinderungen oder aber die Versorgung von Kindern basiert im Wesentlichen darauf, dass die betreuenden Personen in den Anpassprozess und auch in den späteren Nachsorgeprozess eingebunden werden. Darüber hinaus spielen diese Personen im täglichen Umfeld des Hörsystemträgers eine wesentliche Rolle und passen möglicherweise auch Parameter eines Hörgeräts, wie z. B. die Lautstärke des Hörgeräts, für den Schwerhörigen an. Dabei sind sie lediglich auf Erfahrungswerte angewiesen. Sie wissen jedoch nicht, welches Problem der Schwerhörige tatsächlich hat. Damit sind ihre Eingriffe in die Hörgeräteeinstellung nicht notwendigerweise richtig.The hearing aid care of people with multiple disabilities or the care of children is essentially based on the fact that the caregivers are involved in the fitting process and also in the subsequent aftercare process. In addition, these persons play an essential role in the daily environment of the hearing aid wearer and may also fit parameters of a hearing aid, such as a hearing aid. As the volume of the hearing aid for the hard of hearing. They are only dependent on experience. However, they do not know which problem the deaf person actually has. Thus their interventions in the hearing aid setting are not necessarily correct.

Die Aufgabe der vorliegenden Erfindung besteht somit darin, die Einstellung oder die Anpassung eines Hörgeräts für einen Nutzer oder für eine den Nutzer betreuende Person zu erleichtern.The object of the present invention is thus to facilitate the adjustment or adaptation of a hearing device for a user or for a user caring for the user.

Erfindungsgemäß wird diese Aufgabe gelöst durch ein Hörsystem, welches ein Hörgerät mit einer Signalverarbeitungseinrichtung zur Verarbeitung eines Eingangsschalls zu einem Ausgangsschall und einer Analyseeinrichtung, um eine aktuelle Hörsituation zu analysieren, sowie eine Fernbedienung mit einer Visualisierungseinrichtung umfasst, wobei in der Signalverarbeitungseinrichtung oder in einer mit ihr in Datenverbindung stehenden Verarbeitungseinrichtung der Fernbedienung ein perzeptives Modell implementiert ist, mit dem bezogen auf den Ausgangsschall eine psychoakustische Größe bereitstellbar ist, wobei die Visualisierungseinrichtung mit der Signalverarbeitungseinrichtung oder der Verarbeitungseinrichtung verbunden ist, um einen Wert der psychoakustischen Größe zu visualisieren. Hierbei ist vorgesehen, dass aus entsprechenden Analysewerten der Analyseeinrichtung mit dem perzeptiven Modell der Signalverarbeitungseinrichtung oder Verarbeitungseinrichtung mindestens ein psychoakustischer Referenzwert unabhängig von einer Einstellung der Signalverarbeitungseinrichtung erzeugbar ist, welcher durch die Visualisierungseinrichtung zusammen mit einem psychoakustischen Wert betreffend eine aktuelle Einstellung der Signalverarbeitungseinrichtung optisch dargestellt wird.According to the invention, this object is achieved by a hearing system which has a hearing device with a signal processing device for processing an input sound to an output sound and an analysis device for analyzing a current hearing situation and a remote control with a visualization device, wherein a perceptive model is implemented in the signal processing device or in a data processing device of the remote control with which a psychoacoustic variable can be provided with respect to the output sound wherein the visualization device is connected to the signal processing device or the processing device to visualize a value of the psychoacoustic quantity. It is provided that from corresponding analysis values of the analysis device with the perceptive model of the signal processing device or processing device, at least one psychoacoustic reference value can be generated independently of a setting of the signal processing device, which is visually displayed by the visualization device together with a psychoacoustic value relating to a current setting of the signal processing device.

Darüber hinaus wird erfindungsgemäß bereitgestellt ein Verfahren zum Betreiben eines Hörsystems mit einem Hörgerät und einer Visualisierungseinrichtung, welches die folgenden Schritte umfasst: Verarbeiten eines Eingangsschalls zu einem Ausgangsschall in dem Hörgerät, Bereitstellen einer psychoakustischen Größe bezogen auf den Ausgangsschall mit Hilfe eines perzeptiven Modells durch das Hörgerät oder durch eine mit der Visualisierungseinrichtung verbundene Verarbeitungseinrichtung, Visualisieren eines Werts der psychoakustischen Größe durch die Visualisierungseinrichtung, sowie Analyse einer aktuellen Hörsituation. Hierbei ist vorgesehen, dass aus entsprechenden Analysewerten der Analyseeinrichtung mit dem perzeptiven Modell der Signalverarbeitungseinrichtung oder Verarbeitungseinrichtung mindestens ein psychoakustischer Referenzwert unabhängig von einer Einstellung der Signalverarbeitungseinrichtung erzeugbar ist, welcher durch die Visualisierungseinrichtung zusammen mit einem psychoakustischen Wert betreffend eine aktuelle Einstellung der Signalverarbeitungseinrichtung optisch dargestellt wird.In addition, the invention provides a method for operating a hearing system with a hearing device and a visualization device, comprising the following steps: processing an input sound to an output sound in the hearing aid, providing a psychoacoustic quantity in relation to the output sound using a perceptive model by the hearing aid or by a processing device connected to the visualization device, visualizing a value of the psychoacoustic variable by the visualization device, and analyzing a current hearing situation. In this case, it is provided that from corresponding analysis values of the analysis device with the perceptive model of the signal processing device or processing device at least one psychoacoustic reference value can be generated independently of a setting of the signal processing device, which by the visualization device together with a psychoacoustic Value regarding an actual setting of the signal processing device is displayed optically.

In vorteilhafter Weise ist es somit möglich, eine psychoakustische Größe, die angibt, wie der Nutzer einen Schall wahrnimmt, optisch darzustellen, so dass es insbesondere für betreuende Personen von Hörgeschädigten möglich ist, die Einstellung des oder der Hörgeräte für den Nutzer so angenehm wie möglich zu machen.In an advantageous manner, it is thus possible to visualize a psychoacoustic variable which indicates how the user perceives a sound, so that it is possible, in particular for caregivers of the hearing impaired, to make the adjustment of the hearing device (s) as pleasant as possible for the user close.

Da die Signalverarbeitungseinrichtung in dem Hörgerät die psychoakustische Größe liefert, ist es nicht notwendig, ein breitbandiges Signal an ein externes Gerät zur Visualisierung zu übertragen, das daraus erst mit Hilfe eines perzeptiven Modells eine psychoakustische Größe berechnet.Since the signal processing device supplies the psychoacoustic variable in the hearing aid, it is not necessary to transmit a broadband signal to an external device for visualization, which first calculates a psychoacoustic variable from it using a perceptual model.

Besonders vorteilhaft ist auch, wenn das Hörgerät die Fernbedienung umfasst, welche die Visualisierungseinheit und eine bzw. die Verarbeitungseinrichtung enthält. Da Hörgeräte ohnehin vielfach mit einer Fernbedienung bedient werden, ist somit kein zusätzliches Gerät für die Visualisierung notwendig, was die Handhabung des Hörgeräts erleichtert. Bei einem derartigen Hörsystem besitzen das Hörgerät und die Fernbedienung jeweils eine Kommunikationseinrichtung, mit denen der jeweils aktuelle Wert der von der Signalverarbeitungseinrichtung bereitgestellten psychoakustischen Größe von dem Hörgerät zu der Fernbedienung zur optischen Darstellung übertragbar ist.It is also particularly advantageous if the hearing device comprises the remote control, which contains the visualization unit and one or the processing device. Since hearing aids are operated in many cases with a remote control, thus no additional device for the visualization is necessary, which facilitates the handling of the hearing aid. In such a hearing system, the hearing device and the remote control each have a communication device with which the respective current value of the psychoacoustic variable provided by the signal processing device can be transmitted from the hearing device to the remote control for optical representation.

Entsprechend einer Weiterbildung können mehrere psychoakustische Größen von der Signalverarbeitungseinrichtung oder der Verarbeitungseinrichtung bereitgestellt und die entsprechenden Werte von der Visualisierungseinrichtung visualisiert werden. Gegebenenfalls können mehrere Werte gleichzeitig visualisiert werden. So können beispielsweise Klangqualität und Sprachverständlichkeit gleichzeitig visualisiert werden, so dass der Nutzer oder die betreuende Person einen Kompromiss dieser Größen finden kann, wenn sich diese gegenläufig beeinflussen.According to a further development, a plurality of psychoacoustic variables can be provided by the signal processing device or the processing device and the corresponding values can be visualized by the visualization device. If necessary, several values can be visualized simultaneously. Thus, for example, sound quality and speech intelligibility can be simultaneously visualized, so that the user or the caregiver can find a compromise of these variables if these influence each other in opposite directions.

Entsprechend der Erfindung umfasst das Hörgerät eine Analyseeinrichtung, um eine aktuelle Hörsituation zu analysieren, so dass aus entsprechenden Analysewerten mit dem perzeptiven Modell der Signalverarbeitungseinrichtung oder Verarbeitungseinrichtung mindestens ein psychoakustischer Referenzwert unabhängig von einer Einstellung der Signalverarbeitungseinrichtung erzeugbar ist, welcher durch die Visualisierungseinrichtung zusammen mit einem psychoakustischen Wert betreffend eine aktuelle Einstellung der Signalverarbeitungseinrichtung optisch dargestellt wird. Auf diese Weise ist es möglich, neben dem aktuellen psychoakustischen Wert auch beispielsweise einen Maximalwert und einen Minimalwert, gegebenenfalls auch einen Mittelwert, die sich aus der aktuellen Hörsituation ergeben, optisch darzustellen, wodurch der Einstellende objektive Anhaltspunkte für die Einstellung erhält.According to the invention, the hearing device comprises an analysis device in order to analyze a current auditory situation, so that at least one psychoacoustic reference value can be generated independently of a setting of the signal processing device from corresponding analysis values with the perceptive model of the signal processing device or processing device, which can be generated by the visualization device together with a psychoacoustic Value regarding an actual setting of the signal processing device is displayed optically. In this way, in addition to the current psychoacoustic value, it is also possible to visually represent, for example, a maximum value and a minimum value, possibly also an average value resulting from the current auditory situation, whereby the person performing the setting obtains objective clues for the attitude.

Des Weiteren kann vorgesehen sein, dass neben dem Hörgerät ein weiteres Hörgerät zur Versorgung des linken und des rechten Ohrs eines Nutzers vorgesehen ist, wobei die Signalverarbeitungseinrichtung in einem der beiden Hörgeräte angeordnet ist und das perzeptive Modell auf der Grundlage von Signalen beider Hörgeräte eine psychoakustische Größe bezüglich binauraler Wahrnehmung liefert. Hierdurch ist es möglich, die Einstellung bzw. Anpassung eines Hörgeräts auch hinsichtlich binauraler Wahrnehmung zu erleichtern. Insbesondere kann hierdurch beispielsweise die Richtwirkung eines Hörgeräts für den Nutzer leichter optimiert werden.Furthermore, it can be provided that a further hearing device for supplying the left and right ear of a user is provided in addition to the hearing aid, wherein the signal processing device is arranged in one of the two hearing aids and the perceptive model on the basis of signals of both hearing aids a psychoacoustic size regarding binaural perception. This makes it possible to facilitate the adjustment or adaptation of a hearing aid also with respect to binaural perception. In particular, this can be used to more easily optimize the directivity of a hearing device for the user, for example.

Die vorliegende Erfindung ist anhand der beigefügten Zeichnungen näher erläutert, in denen zeigen:

FIG 1
den prinzipiellen Aufbau eines Hörgeräts gemäß dem Stand der Technik und
FIG 2
eine schematische Ansicht eines erfindungsgemäßen Hörsystems mit zwei Hörgeräten und einer Fernbedienung zur Visualisierung.
The present invention will be explained in more detail with reference to the accompanying drawings, in which:
FIG. 1
the basic structure of a hearing aid according to the prior art and
FIG. 2
a schematic view of a hearing system according to the invention with two hearing aids and a remote control for visualization.

Die nachfolgend näher geschilderten Ausführungsbeispiele stellen bevorzugte Ausführungsformen der vorliegenden Erfindung dar.The embodiments described in more detail below represent preferred embodiments of the present invention.

In dem Beispiel von FIG 2 ist ein Hörsystem mit einem ersten Hörgerät 10 dargestellt, das eine interne Signalverarbeitungseinrichtung aufweist, um einen Eingangsschall E1 in einen Ausgangsschall A1 zu wandeln. Die Signalverarbeitungseinrichtung ist durch ein Mikrofon 11, einen Verstärkerbaustein 12 und einen Hörer 13 symbolisiert. In dem Verstärkerbaustein 12, der einen digitalen Prozessor beinhaltet, ist ein perzeptives Modell 14 implementiert. Mit dem perzeptiven Modell 14 können psychoakustische Kenngrößen, wie Lautheit, Angenehmheit, Höranstrengung und andere, in Abhängigkeit von dem Ausgangssignal A1 bzw. eines entsprechend modellierten Signals bereitgestellt werden. Eine derartige psychoakustische Kenngröße ist in FIG 2 mit P gekennzeichnet. Sie kann an einem Computer, ein Fernsehgerät oder ein anderes Gerät zur Visualisierung drahtgebunden oder drahtlos übertragen werden.In the example of FIG. 2 a hearing system with a first hearing aid 10 is shown, which has an internal signal processing device to convert an input sound E1 into an output sound A1. The signal processing device is symbolized by a microphone 11, an amplifier module 12 and a handset 13. In the amplifier module 12, which includes a digital processor, a perceptive model 14 is implemented. With the perceptive model 14, psychoacoustic characteristics such as loudness, pleasantness, listening effort and others can be provided depending on the output signal A1 or a correspondingly modeled signal. Such a psychoacoustic characteristic is in FIG. 2 marked with P. It can be wired or wirelessly transmitted to a computer, TV or other visualization device.

Günstigerweise erfolgt die Berechnung der psychoakustischen Größe im Hörgerät, so dass die vorzugsweise drahtlos erfolgende Sendung der Daten mit niedriger Bitrate erfolgen kann. Wird anderenfalls die Analyse extern, z. B. in der Fernbedienung, vorgenommen, muss zunächst das gesamte Signal mit hoher Bandbreite übertragen werden.The calculation of the psychoacoustic variable in the hearing device is expediently carried out so that the preferably wireless transmission of the data can take place at a low bit rate. Otherwise, the analysis is external, z. B. in the remote control made, first the entire signal must be transmitted with high bandwidth.

In dem Beispiel von FIG 2 wird die psychoakustische Größe P bzw. der entsprechende Wert von dem Hörgerät 10 über eine nicht dargestellte Drahtlosschnittstelle zu einer Fernbedienung 15 übertragen. Diese besitzt neben einigen Bedienelementen 16 einen kleinen Bildschirm 17 als Visualisierungseinrichtung. Gegebenenfalls genügt zur Visualisierung auch ein eindimensionaler Anzeigebalken bestehend aus einer Reihe von LEDs oder ähnlichem. Im vorliegenden Beispiel ist der Bildschirm 17 in der Lage, die Werte mehrerer psychoakustischen Größen P darzustellen, die von dem Hörgerät 10 geliefert werden.In the example of FIG. 2 the psychoacoustic quantity P or the corresponding value is transmitted from the hearing aid 10 via a wireless interface, not shown, to a remote control 15. This has in addition to some controls 16 a small screen 17 as a visualization device. Optionally, a one-dimensional display bar consisting of a series of LEDs or the like is sufficient for visualization. In the present example, the screen 17 is capable of displaying the values of several psychoacoustic Represent sizes P, which are supplied by the hearing aid 10.

Darüber hinaus ist die Verstärkerkomponente 12 des Hörgeräts 10 im vorliegenden Beispiel auch in der Lage, die aktuelle Hörsituation zu analysieren bzw. zu klassifizieren. Damit kann das Hörgerät bezüglich einer oder mehrerer psychoakustischer Dimensionen Referenzdaten R an die Fernbedienung 15 senden, so dass die Anzeige beispielsweise speziell für die Hörsituation skaliert werden kann. Die Referenzdaten R können aber auch dazu verwendet werden, um dem Einstellenden Anhaltspunkte zu geben, in welchem Bereich die jeweilige akustische Größe überhaupt in der Hörsituation verändert werden kann. So ist es unter Umständen günstig, den entsprechenden Minimal- und Maximalwert bezüglich einer psychoakustischen Größe anzuzeigen. Beispielsweise wird eine Schallquelle nie mit mittlerer Lautheit wahrgenommen werden können, wenn sie sehr weit entfernt oder sehr nahe gelegen ist. Dies kann dem Einstellenden durch Referenzwerte, die von der Hörgeräteeinstellung unabhängig sind und die Hörsituation objektiv bewerten, grafisch symbolisiert werden, so dass er nicht vergebens eine bessere Einstellung sucht.In addition, in the present example, the amplifier component 12 of the hearing device 10 is also able to analyze or classify the current hearing situation. Thus, the hearing aid can send reference data R to the remote control 15 with respect to one or more psychoacoustic dimensions, so that the display can be scaled, for example, especially for the hearing situation. However, the reference data R can also be used to give the user a clue in which area the respective acoustic variable can be changed at all in the listening situation. Thus, it may be convenient to display the corresponding minimum and maximum values regarding a psychoacoustic size. For example, a sound source will never be perceived with medium loudness if it is very far away or very close. This can be graphically symbolized to the user by reference values, which are independent of the hearing device setting and objectively evaluate the hearing situation, so that he does not search in vain for a better setting.

Ist ein Hörgeräteträger beidseitig schwerhörig, so kann er zusätzlich mit einem zweiten Hörgerät 20 binaural versorgt werden. In FIG 2 ist ein derartiges zweites Hörgerät 20 ebenfalls symbolisch dargestellt. Es besitzt wie das erste Hörgerät 10 eine Signalverarbeitungseinrichtung bestehend aus einem Mikrofon 21, einem Verstärkerbaustein 22 und einem Hörer 23. Prinzipiell könnte in dem Verstärkerbaustein 22 ebenfalls ein perzeptives Modell implementiert sein, das eine psychoakustische Größe an die Fernbedienung 15 zur Visualisierung überträgt. Ebenso könnte die psychoakustische Größe von dem zweiten Hörgerät 20 auch an das erste Hörgerät 10 übertragen werden. Diese monaurale psychoakustische Größe kann dann gegebenenfalls mit einer monauralen psychoakustischen Größe des ersten Hörgeräts 10 mit Hilfe eines perzeptiven Modells für binaurale Wahrnehmung zur Berechnung einer binauralen psychoakustischen Größe herangezogen werden. Letztere wird dann wieder zur Fernbedienung übertragen. Somit können je nach Wunsch monaurale und binaurale Größen zur Darstellung auf der Fernbedienung zu dieser übertragen werden.If a hearing aid wearer is hearing-impaired on both sides, then it can additionally be supplied binaurally with a second hearing aid 20. In FIG. 2 is such a second hearing aid 20 also shown symbolically. Like the first hearing device 10, it has a signal processing device consisting of a microphone 21, an amplifier module 22 and a receiver 23. In principle, a perceptive model which transmits a psychoacoustic variable to the remote control 15 for visualization could also be implemented in the amplifier module 22. Likewise, the psychoacoustic variable could also be transmitted from the second hearing device 20 to the first hearing device 10. This monaural psychoacoustic quantity may then possibly have a monaural psychoacoustic size of the first hearing device 10 with the aid of a perceptual model for binaural perception for calculating a binaural psychoacoustic Size be used. The latter is then transferred back to the remote control. Thus, as desired monaural and binaural sizes can be transmitted to the representation on the remote control to this.

In dem vorliegenden Beispiel besitzt das zweite Hörgerät 20 kein perzeptives Modell und es wird lediglich ein Signal S, das den Ausgangsschall bzw. das Ausgangssignal A2 repräsentiert, zu dem ersten Hörgerät 10 übertragen. Dort wird es in dem perzeptiven Modell für binaurale Wahrnehmung mit anderen vorliegenden Größen zu einer oder mehreren psychoakustischen Größen verarbeitet, die dann an die Fernbedienung 15 zur Visualisierung übermittelt werden.In the present example, the second hearing aid 20 has no perceptive model and only a signal S representing the output sound or the output signal A2 is transmitted to the first hearing aid 10. There it is processed in the perceptual model for binaural perception with other present sizes to one or more psychoacoustic variables, which are then transmitted to the remote control 15 for visualization.

Alternativ kann das perzeptive Modell auch in einer Verarbeitungseinrichtung der Fernbedienung 15 implementiert sein. Dann sind das oder die entsprechenden das/die Ausgangssignale A1, A2 repräsentierenden Signale S direkt an die Fernbedienung 15 zu übertragen. Diese erstellt dann die zu visualisierenden psychoakustischen Daten.Alternatively, the perceptive model may also be implemented in a processing device of the remote control 15. Then, the or the corresponding signals representing the output signals A1, A2 are to be transmitted directly to the remote control 15. This then creates the psychoacoustic data to be visualized.

Bei Mehrfachbehinderungen ist es denkbar, ein Wahrnehmungsmodell, dem die psychoakustischen Daten als Eingangsparameter dienen, beispielsweise für haptische Wahrnehmung nachzuschalten.In the case of multiple disabilities, it is conceivable to connect a perceptual model, which uses the psychoacoustic data as an input parameter, for example for haptic perception.

Die über die Wahrnehmung des Schwerhörenden angebotenen Größen können betreuende Personen nutzen, um gegebenenfalls die Einstellung des Hörsystems zu ändern. Alternativ ist es auch möglich, anhand dieser Information die Situation aktiv zu verändern, um diese psychoakustischen Größen positiv zu verändern. So kann beispielsweise ein anderer Sitzplatz für ein hörgeschädigtes Kind in einer Schule ausgewählt werden.The variables offered on the perception of the hearing impaired persons may use caring persons to possibly change the setting of the hearing system. Alternatively, it is also possible to use this information to actively change the situation in order to positively alter these psychoacoustic parameters. For example, another seat may be selected for a hearing-impaired child in a school.

Zusätzlich bietet die Darstellung psychoakustischer Kenngrößen die Möglichkeit einer Unterstützung des Schwerhörenden in einer Audiotherapie. Der Hörgeräteträger kann nämlich selbst die dargebotenen psychoakustischen Größen beobachten und gegebenenfalls selbst aktiv sein akustisches Umfeld anpassen. So kann er beispielsweise in einem Saal einen anderen Sitzplatz wählen oder ein offenes Fenster schließen. Besonders hilfreich sind hierbei Referenzdaten die mit visualisiert werden. Sie geben an, was in der vorliegenden, akustischen Situation oder in einer generischen, vergleichbaren Situation tatsächlich in den verschiedenen psychoakustischen Dimensionen erreicht werden könnte.In addition, the presentation of psychoacoustic parameters offers the possibility of assisting the hearing impaired in an audio therapy. Namely, the hearing aid wearer can himself observe the psychoacoustic quantities presented and if necessary to actively adapt your own acoustic environment. For example, he can choose a different seat in a hall or close an open window. Particularly useful are reference data that are visualized with. They indicate what could actually be achieved in the various psychoacoustic dimensions in the present acoustic situation or in a generic, comparable situation.

In vorteilhafter Weise ist es mit dem oben geschilderten System bzw. Verfahren so möglich, psychoakustische Kenngrößen zu visualisieren, um objektive Informationen über das Empfinden eines Hörsystemträgers anbieten zu können. So sind insbesondere, wie oben bereits geschildert, zwei Einsatzgebiete besonders erwähnenswert, nämlich der Einsatz bei Menschen mit Mehrfachbehinderungen oder Kindern, um die betreuenden Personen mit bisher unzugänglichen Informationen zu versorgen, oder aber das Darstellen psychoakustischer Kenngrößen für den Hörsystemträger selbst, z. B. im Rahmen einer Audiotherapie.Advantageously, it is possible with the above-described system or method to visualize psychoacoustic characteristics in order to offer objective information about the perception of a hearing aid wearer can. Thus, in particular, as described above, two applications are particularly worth mentioning, namely the use in people with multiple disabilities or children to provide the caregivers with previously inaccessible information, or the presentation of psychoacoustic characteristics for the hearing aid wearer itself, eg. B. in the context of an audio therapy.

Claims (8)

  1. Hearing system comprising
    a hearing device (10, 20) having
    - a signal processing device for processing an input sound (E1) to produce an output sound (A1, A2) and
    - an analysis device in order to analyse a current hearing situation, and
    a remote control (15) having a visualization device (17),
    - wherein the signal processing device or a processing device of the remote control (15) with a data connection to said signal processing device has a perceptive model (14) implemented in it by means of which a psychoacoustic variable (P) is providable for the output sound (A1, A2), and
    - wherein the visualization device (17) is connected to the signal processing device or the processing device in order to visualize a value of the psychoacoustic variable (P),
    characterized in that
    - at least one psychoacoustic reference value (R) is generable from applicable analysis values of the analysis device by means of the perceptive model (14) of the signal processing device or processing device regardless of a setting of the signal processing device, said reference value being visually presented by the visualization device (17) together with a psychoacoustic value relating to a current setting of the signal processing device.
  2. Hearing system according to Claim 1, wherein the hearing device comprises the remote control (15) containing the visualization device (17) and a or the processing device.
  3. Hearing system according to Claim 2, wherein the hearing device (10, 20) and the remote control (15) each have a communication device by means of which the respective current value of the psychoacoustic variable (P) provided by the signal processing device is transferable from the hearing device (10, 20) to the remote control (15) for visual presentation.
  4. Hearing system according to one of the preceding claims, wherein multiple psychoacoustic variables (P) are providable by the signal processing device or processing device and the applicable values are visualizable by the visualization device (17) at the same time.
  5. Hearing system according to one of the preceding claims, wherein the hearing device has two hearing apparatuses (10, 20) for serving the left and right ears of a user, wherein the signal processing device is arranged in one of the two hearing apparatuses, and the perceptive model (14) takes signals of both hearing apparatuses as a basis for delivering a psychoacoustic variable (P) for binaural perception.
  6. Method for operating a hearing system having a hearing device (10, 20) and a visualization device (17), by
    - processing an input sound (E1) to produce an output sound (A1, A2) in the hearing device and
    - providing a psychoacoustic variable (P) for the output sound (A1, A2) by means of the hearing device or by means of a processing device connected to the visualization device (17) by using a perceptive model (14),
    - visualizing a value of the psychoacoustic variable (P) by means of the visualization device (17), and
    - analysing a current hearing situation, characterized in that
    - at least one psychoacoustic reference value (R) is generated from applicable analysis values by means of the perceptive model (14) independently of a setting of the hearing device, said reference value being visually presented together with a psychoacoustic value relating to a current setting of the hearing device.
  7. Method according to Claim 6, wherein multiple psychoacoustic variables are provided by the hearing device and the applicable values are visualized at the same time.
  8. Method according to either of Claims 6 and 7, wherein besides the hearing device (10, 20) there is provision for a second hearing device (20, 10), these together being intended to serve the left and right ears of a user, and the perceptive model (14) takes signals of both hearing devices as a basis for delivering a psychoacoustic variable (P) for binaural perception for the visualization.
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DK2023668T3 (en) 2020-02-17
EP2023668A2 (en) 2009-02-11

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