EP2070384A1 - Hörvorrichtung gesteuert durch ein perzeptives modell und entsprechendes verfahren - Google Patents
Hörvorrichtung gesteuert durch ein perzeptives modell und entsprechendes verfahrenInfo
- Publication number
- EP2070384A1 EP2070384A1 EP08786017A EP08786017A EP2070384A1 EP 2070384 A1 EP2070384 A1 EP 2070384A1 EP 08786017 A EP08786017 A EP 08786017A EP 08786017 A EP08786017 A EP 08786017A EP 2070384 A1 EP2070384 A1 EP 2070384A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hearing
- signal
- psychoacoustic
- processing
- signal processing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Electric hearing aids
- H04R25/70—Adaptation of deaf aid to hearing loss, e.g. initial electronic fitting
Definitions
- the present invention relates to a hearing device with a signal processing device for processing an input signal to an output signal and a modeling device in which a perceptive model is implemented in order to generate a psychoacoustic value for driving the signal processing device. Moreover, the present invention relates to a corresponding method for operating a hearing device.
- the term hearing device is understood here in particular to be worn on the ear device, such as a hearing aid, a headset, headphones and the like.
- 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), behind-the-ear hearing aids with external handset (RIC: RECEIVER IN THE CANAL) and in-the-ear hearing aids ( IdO), eg Concha hearing aids or canal hearing aids (ITE, CIC) are also provided.
- BTE behind-the-ear hearing aids
- RIC behind-the-ear hearing aids with external handset
- IdO in-the-ear hearing aids
- ITE Concha hearing aids or canal hearing aids
- CIC 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. Kno- chen effets Anlagener, realized.
- the amplifier is usually integrated in a signal processing unit. This basic structure is shown in FIG. 1 using the example of a behind-the-ear hearing device. 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 nature of the hearing aid supply provides a pre-setting of the hearing system to be adapted on the basis of hearing loss.
- the further course of the hearing aid adaptation is characterized by fine adjustment steps based on the reports of the hearing aid wearer.
- the hearing care professional attempts to transfer the subjective hearing impressions of the hearing impaired to technical parameters of the hearing system.
- hearing devices or hearing systems are used so far with a variety of measures.
- potentiometers on hearing systems are used, with which the hearing-impaired person has the opportunity to adjust a psycho-acoustic dimension (loudness) independently of the situation.
- multi-memory devices which give the hearing aid wearer the possibility, depending on the acoustic situation, of an alternative configuration of the hearing aid. System to load.
- classifiers which classify the acoustic environment and automatically adapt the parameterization of the hearing system based on a logic dictated by the manufacturer.
- learning hearing aids are also known which automatically adjust their parameterization within the scope of predetermined tolerances on the basis of user changes.
- document 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.
- document EP 0 661 905 A2 describes a generic method for adapting a hearing device and a corresponding hearing device.
- 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.
- the object of the present invention is to make the adaptation of a hearing device as simple as possible and to propose a corresponding hearing device and a related method.
- a hearing device having a signal processing device for processing an input signal to an output signal, a modeling device in which a perceptive model is implemented to generate a psychoacoustic value for driving the signal processing device, wherein the modeling device images a hearing loss Data are input and the perceptive model of the data and the output signal wins the psychoacoustic value for the control of the signal processing device.
- the data representing the hearing loss may in particular be audiogram data.
- the invention provides a method for operating a hearing device by processing an input signal to an output signal in the hearing device, obtaining a psychoacoustic value by means of a perceptive model and controlling or regulating the processing of the input signal on the basis of the psychoacoustic value, wherein the perceptive model hearing loss imaging data, in particular audiogram data, and the hearing aid output signal obtains the psychoacoustic value for controlling or regulating the processing.
- the modeling device preferably receives level information and / or classification information relating to the input signal for generating the control signal.
- the perceptive model can be parameterized according to the current hearing situation.
- the signal processing can thus be parameterized in an advantageous manner.
- the output signal of the signal processing device can be transmitted to the modeling device indirectly via a receiver and a probe microphone of the hearing device. In this way, the transfer function of the handset or loudspeaker of the hearing device for the control of the signal processing device can be taken into account.
- the acoustic output signal of the hearing aid can be suitably modeled and supplied to the psychoacoustic model in digital form.
- the psychoacoustic value may relate to loudness, pleasantriness, sharpness, roughness, or hearing effort.
- any other psychoacoustic dimensions can also be used to adapt or control the hearing device.
- the hearing device can always be adapted individually to the current hearing situation.
- the one or more parameters relate, for example, to the amplification, the compression, the directional microphone characteristic or the noise suppression of the hearing device.
- the modeling device obtains a plurality of psychoacoustic values and in each case compares them with desired values, and then combines the corresponding difference values weighted into an error variable, wherein the signal processing device is controlled or regulated such that the error magnitude is minimized.
- the setpoint values can be changed by the user via a potentiometer of the hearing device or a remote control of the hearing device.
- the setpoints are often specified by the audiologist, possibly also in multi-program devices.
- FIG. 1 shows the basic structure of a hearing aid according to the prior art
- FIG. 2 shows a block diagram of a hearing aid according to the invention.
- a hearing device is equipped with at least one microphone 10, which supplies an input signal for a signal processing unit 11.
- the output signal of the signal processing unit 11 is supplied to a loudspeaker or earphone 12.
- the signal processing unit 11 can be parameterized in a known manner, for example with regard to amplification, filtering. Parameterization or programming takes place, for example, as part of an adaptation.
- a modeling device 13 is used for automatic parameterization of the signal processing unit 11.
- the modeling device 13 has a perceptive model, which is explained in greater detail below. In principle, the perceptive model serves to convert the output signal of the hearing device into a subjective perceptual dimension (eg loudness).
- This psychoacoustic variable is then used to drive the signal processing unit 11.
- the output signal of the signal processing unit 11 is picked up and made available to the modeling device 13.
- the transfer function of the handset 12 is disregarded.
- the transfer function of the listener and the subsequent acoustic Coupling can be modeled. If one also wants to take this transfer function into account in gaining the psychoacoustic variable, it is necessary, for example, to introduce a probe microphone 14 for the measurement into the ear canal in order to precisely measure the actual sound situation in front of the eardrum.
- the alternative tap of the output signal is shown in dashed lines in FIG.
- the probe microphone 14 can also be used to somewhat adjust the simple tap of the output signal of the signal processing unit 11. For this purpose, a single measurement with the probe microphone is sufficient so that the difference between the two taps can be determined and taken into account in the model of the modeling device. It is then possible to continue working with this corrected model without continuing to use the probe microphone 14.
- the perceptive model in the modeling device 13 is individualized in that the hearing loss, for. B. described by the audiogram of the hearing impaired, is provided via a programming socket 15 of the modeling device 13.
- the modeling device 13 now generates a control signal S for the signal processing unit 11 on the basis of the perceptual model and the audiogram on the basis of the output signal from the signal processing unit 11 or the probe microphone 14, so that it is correspondingly parameterized.
- the modeling device 13 is supplied by a level meter 16 with a level signal from the input signal of the signal processing unit 11.
- a classifier 17 classifies the input signal and supplies the modeling device 13 with a corresponding classification signal.
- Input level signal and / or the classification signal can be obtained by the modeling 13 a differentiated control signal S.
- the signals of the optional level meter 16 and the optional classifier instead of the modeling device 13 of the signal processing unit 11 supplied.
- the above-described problem of the simplified adaptation of a hearing device or a hearing device is thus solved by implementing a single, perceptive model of hearing impairment in addition to the various algorithms on the chip of a hearing aid.
- the computing effort for the modeling is therefore lower, which is why the circuit shown by way of example in FIG. 2 can also be implemented in a hearing aid, which is hardly possible in the methods according to the cited document EP 0 661 905 A2.
- Perceptual models that are suitable for implementation are already known, for example, under the names "PEMO-Q, PHAQM, MCHI.” Necessary quantities for processing the models are usually information on the hearing loss (audiofluorometric hearing loss) as well as on "Audiostream", d. H. a listener edition.
- perceptive models provide information about psychoacoustic dimensions such as loudness, pleasantness, sharpness and roughness.
- psychoacoustic variables such as loudness, pleasantness, sharpness and roughness.
- other psychoacoustic variables are conceivable, such.
- listening effort subjective speech intelligibility or transmission quality.
- the perceptual model implemented on the output side several psychoacoustic parameters can also be obtained from the audio stream in conjunction with the audiofacial hearing loss. If one of the parameters falls below a previously defined level, the parameters of the hearing system are automatically adjusted so as not to fall below the specified minimum value, for example for the loudness. Analogous to this example, the other psychoacoustic parameters mentioned can also be automatically optimized by: Parameters such as gain, compression, directional characteristics, noise removal, etc. are tracked automatically. The number of parameters to be tracked is not necessarily limited.
- an optimization of a composite of selected characteristic variables is constantly carried out and the parameters are correspondingly continuously adjusted adaptively.
- the loudness is kept in a predetermined setting range. This is possible, for example, by establishing a common error function from the weighted characteristics according to the following equation:
- LH, LH_opt loudness, or optimal loudness (1st parameter)
- HA, HA_opt listening effort or optimal listening effort
- the aim now is to continuously adaptively adjust the parameters to be optimized (gain, compression, directional microphone, noise removal, etc.) based on the minimization of this error function.
- Weighting can take into account the importance of the parameter in the optimization. In the special case that only one parameter is to be optimized, its weight must be set to one and those of the other parameters to zero. The sum of all weights always returns the value 1.
- the adaptation according to the invention can also be carried out in multi-memory devices.
- different programs of a hearing aid could be designed to maximize the psychoacoustical dimension "comfort" in the basic program and to minimize another dimension such as "listening effort" in another program.
- the user can switch between the different operating modes via a suitable operating element, such as a push button on the hearing system, a remote control, voice control, etc.
- the switching of the operating modes can also be done automatically.
- the hearing aid for a certain period on the switching behavior of the hearing aid wearer in various operating modes such.
- the hearing device registers certain characteristics of the input signal (eg level, degree of modulation, pitch, formand, etc.) at the switching times and thus links the switching behavior with the characteristic of the input signal so trained learning function can do that
- Hearing after a learning period automatically switch the operating modes depending on the input signal and the requirements of the hearing aid wearer.
- threshold values can be adjusted with respect to the psychoacoustic parameters via a potentiometer or a remote control in finer granularity.
- These thresholds can be
- the user can be set directly by the user by means of a suitable input medium or readjusted individually automatically via a learning algorithm.
- the currently classified acoustic situation can be used for tracking.
- the weighting can be drawn more towards minimum listening effort, whereas in the listening situation "music” the optimization with regard to maximum sound quality is in the foreground.
- a history of the acoustic situations from a datalogging can also be used for updating the parameterization of the hearing system.
- the method according to the invention is implemented in a hearing aid.
- the method it is also conceivable to implement the method on a further device with which the necessary data is exchanged.
- the data exchange may be wireless.
- an automatic control of a hearing system by psychoacoustic parameters and not by statistical, pre-optimized settings of a situation detection unit is thus possible.
- a basic setting of the hearing systems is dispensed with using a prescriptive fitting formula, since the hearing system or the hearing device adaptively tracks all parameters in order to optimize the result of the perceptual model.
- the hearing system has the objective of optimally providing for individual hearing loss, whereas previous pre-optimized approaches satisfy the individual hearing impaired only on average.
- that would be Use of the present invention also conceivable in normal hearing, so that they could benefit, for example, from an adaptive hearing protection in noisy or acoustically difficult environments.
Landscapes
- 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)
- Circuit For Audible Band Transducer (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007035174.9A DE102007035174B4 (de) | 2007-07-27 | 2007-07-27 | Hörvorrichtung gesteuert durch ein perzeptives Modell und entsprechendes Verfahren |
| PCT/EP2008/058960 WO2009016012A1 (de) | 2007-07-27 | 2008-07-10 | Hörvorrichtung gesteuert durch ein perzeptives modell und entsprechendes verfahren |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2070384A1 true EP2070384A1 (de) | 2009-06-17 |
| EP2070384B1 EP2070384B1 (de) | 2015-07-08 |
Family
ID=39816812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08786017.7A Revoked EP2070384B1 (de) | 2007-07-27 | 2008-07-10 | Hörvorrichtung gesteuert durch ein perzeptives modell und entsprechendes verfahren |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20100098276A1 (de) |
| EP (1) | EP2070384B1 (de) |
| DE (1) | DE102007035174B4 (de) |
| DK (1) | DK2070384T3 (de) |
| WO (1) | WO2009016012A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2070384B1 (de) | 2007-07-27 | 2015-07-08 | Siemens Medical Instruments Pte. Ltd. | Hörvorrichtung gesteuert durch ein perzeptives modell und entsprechendes verfahren |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100661313B1 (ko) * | 2003-12-03 | 2006-12-27 | 한국전자통신연구원 | 평생 번호를 사용한 이동성 제공이 가능한 sip 기반의멀티미디어 통신 시스템 및 이동성 제공 방법 |
| DE102007035172A1 (de) * | 2007-07-27 | 2009-02-05 | Siemens Medical Instruments Pte. Ltd. | Hörsystem mit visualisierter psychoakustischer Größe und entsprechendes Verfahren |
| WO2009026959A1 (en) * | 2007-08-29 | 2009-03-05 | Phonak Ag | Fitting procedure for hearing devices and corresponding hearing device |
| US9131321B2 (en) * | 2013-05-28 | 2015-09-08 | Northwestern University | Hearing assistance device control |
| US10842418B2 (en) | 2014-09-29 | 2020-11-24 | Starkey Laboratories, Inc. | Method and apparatus for tinnitus evaluation with test sound automatically adjusted for loudness |
| WO2018006979A1 (en) * | 2016-07-08 | 2018-01-11 | Sonova Ag | A method of fitting a hearing device and fitting device |
| DE102017214942A1 (de) * | 2017-08-25 | 2019-02-28 | Sivantos Pte. Ltd. | Verfahren zum Anpassen einer Hörvorrichtung |
| DE102023204769A1 (de) * | 2023-05-23 | 2024-11-28 | Sivantos Pte. Ltd. | Hörgerät und Verfahren zum Betrieb eines Hörgeräts |
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| DE59410235D1 (de) | 1994-05-06 | 2003-03-06 | Siemens Audiologische Technik | Programmierbares Hörgerät |
| EP1207718A3 (de) * | 1995-03-13 | 2003-02-05 | Phonak Ag | Verfahren zur Anpassung eines Hörgerätes, Vorrichtung hierzu und Hörgerät |
| US6301555B2 (en) | 1995-04-10 | 2001-10-09 | Corporate Computer Systems | Adjustable psycho-acoustic parameters |
| DE19534981A1 (de) | 1995-09-20 | 1997-03-27 | Geers Hoergeraete | Verfahren zur Hörgeräteanpassung mit Fuzzy-Logik |
| US6108431A (en) | 1996-05-01 | 2000-08-22 | Phonak Ag | Loudness limiter |
| US6327366B1 (en) | 1996-05-01 | 2001-12-04 | Phonak Ag | Method for the adjustment of a hearing device, apparatus to do it and a hearing device |
| CA2305991A1 (en) | 1997-10-15 | 1999-04-22 | Beltone Electronics Corporation | A neurofuzzy based device for programmable hearing aids |
| US6366863B1 (en) | 1998-01-09 | 2002-04-02 | Micro Ear Technology Inc. | Portable hearing-related analysis system |
| JP4247951B2 (ja) | 1998-11-09 | 2009-04-02 | ヴェーデクス・アクティーセルスカプ | 参照信号プロセッサを備えた補聴器内の信号プロセスを現場で測定し現場で補正または調整するための方法 |
| EP1290914B1 (de) * | 2001-04-10 | 2004-05-26 | Phonak Ag | Verfahren zur anpassung eines hörgerätes an ein individuum |
| CA2354755A1 (en) | 2001-08-07 | 2003-02-07 | Dspfactory Ltd. | Sound intelligibilty enhancement using a psychoacoustic model and an oversampled filterbank |
| US6862359B2 (en) * | 2001-12-18 | 2005-03-01 | Gn Resound A/S | Hearing prosthesis with automatic classification of the listening environment |
| DE10228632B3 (de) * | 2002-06-26 | 2004-01-15 | Siemens Audiologische Technik Gmbh | Richtungshören bei binauraler Hörgeräteversorgung |
| DE10308483A1 (de) | 2003-02-26 | 2004-09-09 | Siemens Audiologische Technik Gmbh | Verfahren zur automatischen Verstärkungseinstellung in einem Hörhilfegerät sowie Hörhilfegerät |
| DE10331956C5 (de) * | 2003-07-16 | 2010-11-18 | Siemens Audiologische Technik Gmbh | Hörhilfegerät sowie Verfahren zum Betrieb eines Hörhilfegerätes mit einem Mikrofonsystem, bei dem unterschiedliche Richtcharakteistiken einstellbar sind |
| EP1594344A3 (de) | 2005-08-03 | 2006-03-15 | Phonak Ag | Verfahren zum Erlangen akustischer Eigenschaften, Hörgerät und dessen Herstellungsverfahren |
| US7680291B2 (en) * | 2005-08-23 | 2010-03-16 | Phonak Ag | Method for operating a hearing device and a hearing device |
| US8265765B2 (en) | 2005-12-08 | 2012-09-11 | Cochlear Limited | Multimodal auditory fitting |
| US8249284B2 (en) * | 2006-05-16 | 2012-08-21 | Phonak Ag | Hearing system and method for deriving information on an acoustic scene |
| US8224004B2 (en) * | 2006-09-08 | 2012-07-17 | Phonak Ag | Programmable remote control |
| US7974716B2 (en) * | 2007-04-25 | 2011-07-05 | Schumaier Daniel R | Preprogrammed hearing assistance device with program selection based on patient usage |
| DE102007035174B4 (de) | 2007-07-27 | 2014-12-04 | Siemens Medical Instruments Pte. Ltd. | Hörvorrichtung gesteuert durch ein perzeptives Modell und entsprechendes Verfahren |
| DK2191662T3 (da) * | 2007-09-26 | 2011-09-05 | Phonak Ag | Høresystem med en brugerpræferencestyring og fremgangsmåde til brug af et høresystem |
-
2007
- 2007-07-27 DE DE102007035174.9A patent/DE102007035174B4/de not_active Expired - Fee Related
-
2008
- 2008-07-10 EP EP08786017.7A patent/EP2070384B1/de not_active Revoked
- 2008-07-10 WO PCT/EP2008/058960 patent/WO2009016012A1/de not_active Ceased
- 2008-07-10 US US12/516,861 patent/US20100098276A1/en not_active Abandoned
- 2008-07-10 DK DK08786017.7T patent/DK2070384T3/da active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009016012A1 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2070384B1 (de) | 2007-07-27 | 2015-07-08 | Siemens Medical Instruments Pte. Ltd. | Hörvorrichtung gesteuert durch ein perzeptives modell und entsprechendes verfahren |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102007035174B4 (de) | 2014-12-04 |
| DE102007035174A1 (de) | 2009-02-05 |
| US20100098276A1 (en) | 2010-04-22 |
| DK2070384T3 (da) | 2015-10-12 |
| WO2009016012A1 (de) | 2009-02-05 |
| EP2070384B1 (de) | 2015-07-08 |
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