EP3783921B1 - Anpassung eines frequenzabhängigen verstärkers eines hörgeräts - Google Patents

Anpassung eines frequenzabhängigen verstärkers eines hörgeräts Download PDF

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Publication number
EP3783921B1
EP3783921B1 EP19193289.6A EP19193289A EP3783921B1 EP 3783921 B1 EP3783921 B1 EP 3783921B1 EP 19193289 A EP19193289 A EP 19193289A EP 3783921 B1 EP3783921 B1 EP 3783921B1
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EP
European Patent Office
Prior art keywords
gain
frequency
values
hearing device
value
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EP19193289.6A
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English (en)
French (fr)
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EP3783921A1 (de
Inventor
Marius BEUCHERT
Erich CRAMERI
Nicola HILDEBRAND
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Sonova Holding AG
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Sonova AG
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Priority to DK19193289.6T priority Critical patent/DK3783921T3/da
Priority to EP19193289.6A priority patent/EP3783921B1/de
Publication of EP3783921A1 publication Critical patent/EP3783921A1/de
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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
    • 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

Definitions

  • the invention relates to a method, a computer program and a computer-readable medium adjusting a frequency dependent gain of a hearing device. Furthermore, the invention relates to a hearing device.
  • a hearing device may be used for compensating a hearing loss of a user.
  • Hearing devices are generally small and complex devices.
  • Hearing devices can include a processor, microphone, speaker, memory, housing, and other electronical and mechanical components.
  • Some example hearing devices are Behind-The-Ear (BTE), Receiver-In-Canal (RIC), In-The-Ear (ITE), Completely-In-Canal (CIC), and Invisible-In-The-Canal (IIC) devices.
  • BTE Behind-The-Ear
  • RIC Receiver-In-Canal
  • ITE In-The-Ear
  • CIC Completely-In-Canal
  • IIC Invisible-In-The-Canal
  • a user can prefer one of these hearing devices compared to another device based on hearing loss, aesthetic preferences, lifestyle needs, and budget.
  • a hearing device comprises a part, called coupling, which partially or completely occludes the ear canal of a user.
  • Electroacoustic amplified sound is emitted by a hearing device receiver in the ear canal via the coupling. Portions of the electroacoustic amplified sound may flow out of the ear canal through the coupling, especially at low frequencies. This may be called ventloss or leakage. Also, portions of environmental sound may pass the ear canal directly through the coupling, without electroacoustic amplification, especially at low frequencies, whereas environmental sound may be attenuated by the coupling more at high frequencies. The environmental sound, which passes the ear canal directly through the coupling, is called direct sound.
  • US 2008 292 122 A1 describes a hearing aid, which comprise at least one microphone, a signal processing means and an output transducer, the signal processing means being adaptive to receive an input signal from the microphone, wherein the signal processing means is adapted to apply a hearing aid gain to the input signal to produce an output signal to be output by the output transducer, and wherein the signal processing means further comprises means for adjusting the hearing aid gain if the hearing aid gain would be below a direct transmission gain calculated for the hearing aid.
  • WO02085063A2 describes a fitting method for a multichannel hearing aid with at least one low frequency channel having an individually adjustable compressor. After adjustment compressors operating at low frequencies enhance low level signals and attenuate high level signals whereby perception of occlusion is suppressed.
  • a first aspect of the invention relates to a method for adjusting a frequency dependent gain of a hearing device.
  • a hearing device may be a device as described above.
  • a hearing device may be a hearing aid adapted for compensating the hearing loss of a user.
  • a hearing device may comprise a microphone, a sound processor and a sound output device, such as a loudspeaker, which also may be called a receiver.
  • the sound processor may receive a sound signal from the microphone and may frequency dependent amplifier and/or attenuate the sound signal. The sound signal then may be output by the sound output device to the ear of the user.
  • the hearing device may comprise an in-the-ear part arranged in the ear canal of the user. The in-the ear part may contain or may be connected to the sound output device.
  • the method as described herein may be performed automatically by the hearing device.
  • the method comprises: receiving an amplification level selected by a user of the hearing device.
  • a low frequency amplification level change request from the user may be received in the hearing device.
  • the hearing device may comprise a knob for selecting the amplification level. It also may be possible that the selection is performed with a mobile device of the user, which sends the selected amplification level to the hearing device.
  • the amplification level may be numeric value. For, example, the amplification level is an integer number from a range of numbers.
  • the method further comprises: selecting offset gain values for frequencies in a bass range based on the amplification level.
  • a bass range may comprise frequencies below 1 kHz.
  • the frequency range may be divided into frequency bands and/or frequencies, wherein the hearing device is adapted for processing a sound signal in each frequency band separately.
  • a frequency band may be represented by a frequency.
  • the offset gain values may be selected to specify a desired amplification.
  • the offset gain values may be equal in the frequency range. However, it also may be that the offset gain values increase from a border of the frequency range towards a middle of the frequency range.
  • the offset gain values may be selected, such that the offset gain values from a lowest frequency to a highest frequency are decreasing. In this case it may be that, the offset gain value of the highest frequency is 0.
  • the offset gain values may be determined with a function stored in the hearing device, which calculates the offset gain values, when the amplification level is put in as input data. It also may be that the offset gain values are stored in a table in the hearing device and/or in the mobile device in dependence of the amplification level.
  • the method further comprises: reading fitting gain values for the frequencies stored in the hearing device, wherein the fitting gain values have been selected to compensate a hearing loss of the user.
  • the fitting gain values may have been determined during fitting of the hearing device, for example a hearing care specialist may have selected the fitting gain values and applied to the hearing device.
  • the fitting gain values may be seen as a gain model for the hearing device.
  • the hearing device When the hearing device is operating, there may be a sound in front of an ear drum of an ear of the user, wherein the sound is a superimposition of a receiver sound, i.e. a sound from a receiver and/or loudspeaker of the hearing device and direct sound, which is environmental sound passing a coupling of the hearing device directly into the ear canal without electroacoustic amplification.
  • the receiver sound may be generated based on the environment sound being picked up by a microphone of the hearing device, which is amplified by an amplifier according to the gain model and/or the fitting gain values. The receiver sound may then be emitted by the receiver into the ear.
  • the fitting gain values and/or the gain model may be defined such that the receiver sound is sufficiently below the direct sound within the bass range for avoiding comb filter effects; which may result if both sounds are at a similar level.
  • the hearing device comprises several sets of fitting gain values, which may be selected for different programs of the hearing device. The actually selected fitting gain values then may be used in the present method. It also may be that the fitting gain values are dependent on an input gain of the environmental sound to be amplified. Thus, the amplification of the hearing device may be frequency dependent and gain dependent.
  • the method further comprises: determining direct sound indicator values for the frequencies, wherein a direct sound indicator value for a frequency specifies and/or indicates a level of direct sound in front of an ear drum in the ear canal of the user at that frequency.
  • direct sound may be environmental sound directly entering the ear canal without electroacoustic amplification.
  • the direct sound which is used for determining the direct sound indicator values, may be estimated based on the results of a feedback test. Such a feedback test may be performed with the ear of the user.
  • the direct sound indicator values may directly encode the level of direct sound in front of the ear drum, as real ear occluded gain values or as 2cc occluded gain values. Also the fitting values may be encoded in this way.
  • the direct sound indicator values may be determined with a function stored in the hearing device and/or from a table stored in the hearing device.
  • the function and/or table for the specific hearing device type and/or hearing device configuration of the hearing device then may be stored in the hearing device.
  • direct sound indicator values are determined by a hearing device manufacture for different hearing device types and/or hearing device configurations.
  • the level of direct sound may depend on a leakage or vent in the coupling, in particular a diameter and/or length of the vent. In general, the level of direct sound may be estimated based on data in a fitting software. It also may be that the direct sound is directly measured.
  • the method further comprises: setting an adjusted gain value in each frequency depending on the offset gain value, the fitting gain value and the direct sound indicator value.
  • the method comprises according to the invention: setting an adjusted gain value in each frequency to the sum of the offset gain value and a maximum of the fitting gain value and the direct sound indicator value. In each frequency, a maximum of the fitting gain value and the direct sound indicator value may be determined to this maximum, the respective offset gain value may be added.
  • an adjusted gain value in the frequency may be set to the sum of the direct sound indicator value and the offset gain value for a frequency, when the direct sound indicator value in the frequency is higher than the fitting gain value.
  • the adjusted gain value in the frequency may be set to the sum of the fitting gain value and the offset gain value in the frequency.
  • the offset gain values are added to the higher value of the fitting gain value and the direct sound indicator value.
  • the amplification is performed with respect to the level of direct sound, which may be higher than the level of an unmodified fitting gain model, which has been selected to be below the direct sound level to avoid comb filter effects. Since the adjusted gain values may be above the level of direct sound, a comb filter effect also may be avoided with the adjusted gain values.
  • the fitting gain values may be chosen device independent, while the direct sound indicator values solely may be based on the type and/or configuration of the hearing device.
  • the method further comprises: applying the adjusted gain values to an amplifier of the hearing device, such that a sound signal in each frequency is amplified with the corresponding adjusted gain value.
  • the sound processor of the hearing device may be adapted for amplifying the sound signal from the microphone differently in each frequency. This frequency dependent amplification may be set with the adjusted gain values. A correspondingly amplified sound is then output by the sound output device.
  • the fitting gain values and/or the direct sound indicator values have been determined for an ear of the user.
  • the fitting gain values and the direct sound indicator values may be obtained in a real ear representation.
  • the fitting gain values and/or the direct sound indicator values have been determined for a standardized ear model, such as for a 2cc coupler.
  • the fitting gain values and the direct sound indicator values may be obtained in 2cc coupler values representation.
  • an adjusted gain value is set to a maximal gain value in the frequency, when it is higher than the maximal gain value.
  • a maximal gain value may be provided for each frequency.
  • a headroom for the amplification may be defined in this way.
  • margin gain values are added to the adjusted gain values or to the offset gain values, before the adjusted gain values are applied to the amplifier of the hearing device.
  • the margin gain values in different frequencies all may be equal.
  • Such margin gain values may help to suppress comb filter effects between the direct sound, which directly enters the ear of the user and processed sound output by the hearing device into the ear, i.e. receiver sound, which usually is delayed with respect to the direct environmental sound.
  • the sound output by the hearing device may be made louder than the direct environmental sound.
  • an adjusted offset value is determined by subtracting the fitting gain value from the direct sound indicator value and adding the offset gain value for a frequency, when the direct sound indicator value in the frequency is higher than the fitting gain value.
  • the adjusted gain value then may be determined by adding the adjusted offset value to the fitting gain value. This may be beneficial, when the adjusted gain value is determined in a different module and/or part of the hearing device as the adjusted gain value, which, for example, may be determined in the sound processor directly.
  • the direct sound indicator values are stored in the memory of the hearing device. It may be that the direct sound indicator values are calculated offline and stored in the hearing device in the form of a table.
  • the direct sound indicator values are determined from a function stored in the hearing device. It also may be that a function, such as a spline or a polynomial, is fitted to a curve, which is defined by the direct sound indicator values. The parameters of this function and/or curve may be stored in the hearing device.
  • the offset gain values increase.
  • the offset gain values for a first amplification level may be multiplied with a factor, which increases with increasing amplification level.
  • the computer program may be executed in a processor of the hearing device, which, for example, may be carried by the user behind the ear and/or in the ear.
  • the computer-readable medium may be a memory of the hearing device.
  • a computer-readable medium may be a floppy disk, a hard disk, an USB (Universal Serial Bus) storage device, a RAM (Random Access Memory), a ROM (Read Only Memory), an EPROM (Erasable Programmable Read Only Memory) or a FLASH memory.
  • a computer-readable medium may also be a data communication network, e.g. the Internet, which allows downloading a program code.
  • the computer-readable medium may be a non-transitory or transitory medium.
  • a further aspect of the invention relates to a hearing device adapted for performing the method according to claim 14.
  • the hearing device comprises a processor and a memory, in which the computer program is stored.
  • the hearing device comprises a microphone for acquiring a sound signal, which is frequency dependent adjusted with the method.
  • the hearing device also may comprise an in-the-ear part, which is either connected via a tube with the sound output device and/or which contains the sound output device.
  • Fig. 1 schematically shows a hearing device 10 in the form of a behind the ear device. It has to be noted that the hearing device 10 of Fig. 1 is a specific embodiment and that the method described herein also may be performed by other types of hearing devices, such as in-the-ear devices.
  • the hearing device 10 comprises a part 12 behind the ear and a part or coupling 14 to be put in the ear canal of a user.
  • the part 12 and the part 14 are connected by a tube 16.
  • a microphone 18, a sound processor 20, which may comprise an amplifier, and a sound output device 22, such as a loudspeaker and/or receiver, are provided in the part 12.
  • the microphone 18 may acquire environmental sound of the user and may generate a sound signal
  • the sound processor and/or amplifier 20 may amplify the sound signal
  • the sound output device 22 may generate sound that is guided through the tube 16 and the in-the-ear part 14 into the each canal of the user.
  • the hearing device 10 may comprise a processor 24, which is adapted for adjusting the frequency dependent gain of the sound processor 20.
  • a processor 24 which is adapted for adjusting the frequency dependent gain of the sound processor 20.
  • a knob 26 of the hearing device 10 a user may select a specific program, which has been adjusted for him or by himself to compensate his hearing loss in a specific situation.
  • modifiers such as bass, treble, noise suppression, etc.
  • levels of these modifiers may be selected, which change the frequency and input level dependent gain of the sound processor 20. All these functions may be implemented as computer programs stored in a memory 28 of the hearing device 10, which computer programs may be executed by the processor 20.
  • Fig. 2 shows a diagram with sound pressure levels in front of the ear drum of a user, which may be present in a method as described herein. The sound pressure levels are depicted over frequency
  • the sound in front of the ear drum is a superimposition of a receiver sound 50 produced by the sound output device 22 (which may be a loudspeaker 22 and/or receiver 22), and a direct sound 52, which results from environment sound passing directly without electroacoustic amplification by the amplifier/sound processor 20 into the ear canal.
  • the unmodified receiver sound 50 may be determined by the hearing device 10 with a fitting curve, which was stored in the hearing device 10 during fitting of the hearing device 10.
  • the in-the-ear part 14 occludes the ear canal of the user partially or completely and influences a transmission of the direct sound 52 into the ear canal.
  • the transmission from the receiver sound 50 generated by the sound output device 22 into the ear canal may be influenced by the in-the-ear part 14, since sound produced in this way, may leave the ear canal through the in-the-ear part 14.
  • sound with low frequencies i.e. in a bass range 34
  • portions of environmental sound with low frequencies passes the ear canal directly through the opening in-the-ear part 14 more easily than portions of environmental sound with higher frequencies.
  • the hearing device 10 may be fitted, such that sound in the bass range is much lesser amplified as sound with higher frequencies.
  • a bass modifier increases the gain of low frequencies to a higher value, but that an increase in gain is not or nearly not perceptible by the user due to the effects described above. In the following a method will be described in detail, how these effects can be compensated.
  • a possibly frequency dependent offset 40 which is determined based on the selection of an amplification level by the user, is added to the maximum of the direct sound level 52 and the unmodified receiver sound level 50.
  • Fig. 2 shows different modified receiver sound curves 54a, 54b, 45c, 45d that are produced in this way for different amplification levels.
  • Fig. 3 shows a diagram with gains used with the hearing device 10.
  • the diagram shows different curves with gains over frequency, which is depicted to the right.
  • the overall frequency range, in which the hearing device 10 and/or the sound processor 20 is adapted for processing the sound signal is divided into frequencies and/or frequency bands, which are indicated by the dots on the curves in the diagram. For every frequency a different gain value can be selected for the sound processor 20.
  • the fitting gain values 30, which are indicated by the fitting curve 30', may have been determined by an audiologist or hearing care specialist during the fitting of the hearing device 10.
  • the fitting gain values 30 are selected to optimally compensate a hearing loss of the user.
  • the fitting gain values 30 are stored in the memory 28. For example, the fitting gain values 30 are applied to the sound processor, when no special program has been selected and/or when all modifiers are on a neutral level.
  • Fig. 3 furthermore shows a direct sound indicator curve 32', from which direct sound indicator values 32 can be determined.
  • the direct sound indicator curve 32' may have been determined from the manufacture of the hearing device 10 and/or may have been measured and/or may depend on the type/configuration of hearing device 10 and in particular the in-the-ear part 12.
  • the direct sound indicator curve 32' indicates the level of direct sound in front of the ear drum in the ear canal. It can be seen that as the lower the frequency as higher the attenuation.
  • Fig. 3 also shows adjusted curves 36a', 36b', 36c', 36d', defined by adjusted gain values 36a, 36b, 36c, 36d, which have been determined with the method as described herein.
  • the respective curves 36a', 36b', 36c', 36d' and gain values 36a, 36b, 36c, 36d belong to different positive amplification levels 38, which are indicated in Fig. 4 .
  • Fig. 3 further indicates an offset gain value 40 for a specific frequency that has been determined for the amplification level 38 and an adjusted offset gain value 42, which is the sum of the difference 44 between the direct sound indicator value 32 and the fitting gain value 30 in this frequency. It has to be noted that the values 40, 42, 44 may be determined for every frequency or at least frequencies for a frequency range, such, as shown, a bass range 34.
  • Fig. 4 shows an example of amplification levels 38, which may be chosen by the user, for example with the aid of the knob 26 and/or with a mobile device, which is in data communication with the hearing device 10.
  • the amplification level 38 can be chosen with a slider element of a graphical user interface provided by the mobile device.
  • the amplification 0 belongs to the fitting curve 30 and/or the fitting gain values 30 as gain values, which are chosen for amplification.
  • the amplification levels 38 i.e. 1, 2, 3, 4, correspond to the adjusted curves 36a', 36b', 36c', 36d' and/or the adjusted gain values 36a, 36b, 36c, 36d shown in Fig. 3 .
  • the adjusted gain values 36a, 36b, 36c, 36d and the offset gain values 40a, 40b, 40c, 40d will be referred to with the numerals 36 and 40 for brevity.
  • the offset gain values 40 used for positive amplifications levels 38 may be determined by a function and/or table stored in the hearing device 10.
  • Fig. 5 shows a flow diagram for a method for adjusting a frequency dependent gain of the hearing device 10, which may be performed automatically by the hearing device 10.
  • step S10 an amplification level 38 selected by a user of the hearing device 10 is received.
  • the amplification level 38 may have been selected with the knob 26 or with a graphical user interface of a mobile device in data communication with the hearing device 10.
  • step S12 offset gain values 40 for frequencies in a frequency range 34, which may be a bass range, based on the amplification level 38 are selected.
  • the offset gain values may be taken from a table stored in the memory 28 of the hearing device 10 and/or may be calculated with a function stored in the memory 28 of the hearing device 10.
  • the offset gain values 40 are selected to be positive.
  • the offset gain values 40 may be chosen such that the offset gain value 40 for a frequency increases (or at least stays the same), when the amplification level 38 increases.
  • the offset gain values 40 may be selected, such that the offset gain values 40 decrease from a lowest frequency to a highest frequency of the frequency range 34. It may be possible that the offset gain value 40 of the highest frequency in the frequency range is 0.
  • step S12 also fitting gain values 30 for the frequencies may be read, which have been stored in the hearing device 10.
  • step S14 Dependent on the amplification level 38, the method continuous in step S14 or step S16.
  • step S14 when the amplification level 38 specifies a positive amplification, direct sound indicator values 32 are determined for the frequencies.
  • the direct sound indicator values 32 also may have been stored in the memory 28 of the hearing device 10 and/or may be calculated with a function stored in the memory 28.
  • an adjusted gain value 36 in each frequency is determined based on the offset gain value 40, the fitting gain value 30 and the direct sound indicator value 32 in the frequency.
  • the adjusted gain value 36 in this frequency is set to the sum of the direct sound indicator value 32 and the offset gain value 40 in this frequency.
  • the adjusted gain value 36 in the frequency is set to the sum of the fitting gain value 30 and the offset gain value 40 in the frequency.
  • adjusted offset values 42 are firstly determined in a first module of the hearing device 10, which then may be added to the fitting gain values 30 in a second module of the hearing device 10. For example, this may be beneficial, when the parameters implemented to the sound processor 20 are not the absolute gain values, but offset gain values with respect to a fitting curve. For example, the sound processor 20 may add the adjusted offset values 42 to the fitting gain values 30.
  • the adjusted offset values 42 may be determined by subtracting the fitting gain value 30 from the direct sound indicator value 32 and adding the offset gain value 40 for a frequency, when the direct sound indicator value 32 in the frequency is higher than the fitting gain value 30. Otherwise, the adjusted offset values 42 may be equal to the selected offset values 40.
  • margin gain values are added to the adjusted gain values 36 or to the adjusted offset values 42, before the adjusted gain values 36 are applied to the amplifier of the hearing device 10. As described above, this may be beneficial to compensate for interactions between the original sound and the amplified sound within the ear.
  • step S16 when the amplification level 38 specifies a negative amplification, the direct sound indicator values 32 are not considered.
  • the adjusted gain values 36 are determined by adding the selected negative offset gain values 40 to the fitting gain values 30.
  • the adjusted gain value 36 may be restricted to a maximal gain value.
  • An adjusted gain value 36 may be set to a maximal gain value in the frequency, when it is higher than the maximal gain value in this frequency.
  • the maximal gain values for the frequency may be stored in the hearing device 20.
  • step S18 the adjusted gain values 36 are applied to the sound processor and/or amplifier 20 of the hearing device 10, such that the sound signal in each frequency is amplified with the corresponding adjusted gain value 36.
  • the sound signal acquired with the microphone 18 may be amplified in this way and may be output by the sound output device 22.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)

Claims (14)

  1. Verfahren zum Einstellen einer frequenzabhängigen Verstärkung eines Hörgeräts (10), wobei das Verfahren umfasst:
    Empfangen eines Verstärkungspegels (38), der von einem Benutzer des Hörgeräts (10) ausgewählt wurde;
    Auswählen von Offset-Verstärkungswerten (40) für Frequenzen in einem Bassbereich (34) basierend auf dem Verstärkungspegel (38);
    Auslesen von Anpassungs-Verstärkungswerten (30) für die in dem Hörgerät (10) gespeicherten Frequenzen, wobei die Anpassungs-Verstärkungswerte (30) ausgewählt wurden, um einen Hörverlust des Benutzers zu kompensieren;
    Bestimmen von Direktschallindikatorwerten (32) für die Frequenzen, wobei ein Direktschallindikatorwert (32) für eine Frequenz einen Pegel von Direktschall vor einem Trommelfell in einem Gehörgang des Benutzers bei dieser Frequenz angibt;
    Einstellen eines eingestellten Verstärkungswerts (36) in jeder Frequenz in Abhängigkeit von dem Offset-Verstärkungswert (40), dem Anpassungs-Verstärkungswert (30) und dem Direktschallindikatorwert (32);
    Anlegen der eingestellten Verstärkungswerte (36) an einen Verstärker (20) des Hörgeräts (10), so dass ein Schallsignal in jeder Frequenz mit dem entsprechenden eingestellten Verstärkungswert (36) verstärkt wird;
    dadurch gekennzeichnet, dass der eingestellte Verstärkungswert (36) in jedem Frequenzband auf die Summe des Offset-Verstärkungswerts (40) und ein Maximum des Anpassungs-Verstärkungswerts und des Direktschallindikatorwerts (32) eingestellt wird.
  2. Verfahren nach Anspruch 1,
    wobei die Anpassungs-Verstärkungswerte (30) und/oder die Direktschallindikatorwerte (32) für ein Ohr des Benutzers bestimmt wurden.
  3. Verfahren nach Anspruch 1,
    wobei die Anpassungs-Verstärkungswerte (30) und/oder die Direktschallindikatorwerte (32) für ein standardisiertes Ohrmodell bestimmt wurden, das ein 2cc Kuppler ist.
  4. Verfahren nach einem der vorhergehenden Ansprüche,
    wobei die Offset-Verstärkungswerte (40) derart ausgewählt werden, dass die Offset-Verstärkungswerte von einer niedrigsten Frequenz zu einer höchsten Frequenz hin abnehmen.
  5. Verfahren nach einem der vorhergehenden Ansprüche,
    wobei der Offset-Verstärkungswert (40) der höchsten Frequenz in dem Frequenzbereich 0 beträgt.
  6. Verfahren nach einem der vorhergehenden Ansprüche,
    wobei ein eingestellter Verstärkungswert (36) auf einen maximalen Verstärkungswert in der Frequenz festgelegt wird, wenn er höher als der maximale Verstärkungswert ist.
  7. Verfahren nach einem der vorhergehenden Ansprüche,
    wobei Randverstärkungswerte zu den eingestellten Verstärkungswerten (36) addiert werden, bevor die eingestellten Verstärkungswerte (36) an den Verstärker des Hörgeräts (10) angelegt werden.
  8. Verfahren nach einem der vorhergehenden Ansprüche,
    wobei ein eingestellter Offset-Wert (42) bestimmt wird, indem der Anpassungs-Verstärkungswert (30) von dem Direktschallindikatorwert (32) subtrahiert und der Offset-Verstärkungswert (40) für eine Frequenz addiert wird, wenn der Direktschallindikatorwert (32) in der Frequenz höher ist als der Anpassungs-Verstärkungswert (30);
    wobei die eingestellten Verstärkungswerte (36) bestimmt werden, indem die eingestellten Offset-Werte zu den Anpassungs-Verstärkungswerten addiert werden.
  9. Verfahren nach einem der vorhergehenden Ansprüche,
    wobei die Direktschallindikatorwerte (32) in dem Speicher des Hörgeräts (10) gespeichert werden.
  10. Verfahren nach einem der vorhergehenden Ansprüche,
    wobei die Direktschallindikatorwerte (32) aus einer in dem Hörgerät (10) gespeicherten Funktion bestimmt werden.
  11. Verfahren nach einem der vorhergehenden Ansprüche,
    wobei sich die Offset-Verstärkungswerte (40) erhöhen, wenn der Verstärkungspegel (38) steigt.
  12. Computerprogramm zum Einstellen einer frequenzabhängigen Verstärkung eines Hörgeräts (10), das, wenn es durch einen Prozessor ausgeführt wird, ausgelegt ist, um die Schritte des Verfahrens nach einem der vorhergehenden Ansprüche auszuführen.
  13. Computerlesbares Medium, in dem ein Computerprogramm nach Anspruch 12 gespeichert ist.
  14. Hörgerät (10), umfassend:
    ein Mikrofon (18);
    einen Schallprozessor (20) zum Empfangen eines Schallsignals von dem Mikrofon (18) und zum frequenzabhängigen Verstärken und/oder Dämpfen des Schallsignals;
    eine Schallausgabevorrichtung (22) zum Ausgeben des Schallsignals an ein Ohr eines Benutzers;
    dadurch gekennzeichnet, dass das Hörgerät (10) ausgelegt ist, um das Verfahren nach einem der Ansprüche 1 bis 11 durchzuführen.
EP19193289.6A 2019-08-23 2019-08-23 Anpassung eines frequenzabhängigen verstärkers eines hörgeräts Active EP3783921B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DK19193289.6T DK3783921T3 (da) 2019-08-23 2019-08-23 Justering af en frekvensafhængig forstærkning af et høreapparat
EP19193289.6A EP3783921B1 (de) 2019-08-23 2019-08-23 Anpassung eines frequenzabhängigen verstärkers eines hörgeräts

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EP19193289.6A EP3783921B1 (de) 2019-08-23 2019-08-23 Anpassung eines frequenzabhängigen verstärkers eines hörgeräts

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EP3783921B1 true EP3783921B1 (de) 2023-04-19

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Publication number Priority date Publication date Assignee Title
EP4117308A1 (de) * 2021-07-08 2023-01-11 Audientes A/S Anpassungsverfahren für hörgerät und hörgerät mit solchen anpassungsverfahren

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002338609B2 (en) * 2001-04-13 2006-09-21 Widex A/S Fitting method and a hearing aid for suppression of perceived occlusion
WO2007099116A2 (en) * 2006-03-03 2007-09-07 Widex A/S Hearing aid and method of compensation for direct sound in hearing aids
US10264365B2 (en) * 2017-04-10 2019-04-16 Bose Corporation User-specified occluding in-ear listening devices

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DK3783921T3 (da) 2023-05-15

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