EP2182741B1 - Dispositif auditif doté d'une unité de reconnaissance de situation spéciale et procédé de fonctionnement d'un dispositif auditif - Google Patents

Dispositif auditif doté d'une unité de reconnaissance de situation spéciale et procédé de fonctionnement d'un dispositif auditif Download PDF

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Publication number
EP2182741B1
EP2182741B1 EP09173019A EP09173019A EP2182741B1 EP 2182741 B1 EP2182741 B1 EP 2182741B1 EP 09173019 A EP09173019 A EP 09173019A EP 09173019 A EP09173019 A EP 09173019A EP 2182741 B1 EP2182741 B1 EP 2182741B1
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Prior art keywords
signal
microphone
signals
classification
situation
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EP09173019A
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German (de)
English (en)
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EP2182741A1 (fr
EP2182741B2 (fr
Inventor
Andre Steinbuss
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Sivantos Pte Ltd
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Siemens Medical Instruments 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
    • H04R25/43—Electronic input selection or mixing based on input signal analysis, e.g. mixing or selection between microphone and telecoil or between microphones with different directivity characteristics
    • 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
    • H04R25/40—Arrangements for obtaining a desired directivity characteristic
    • H04R25/407—Circuits for combining signals of a plurality of transducers

Definitions

  • the present invention relates to a hearing device with a microphone device for recording a sound signal, a receiving device for receiving an electrical or electromagnetic signal, a classification device for determining an acoustic situation from the signals of the microphone device and the receiving device and a signal processing device for processing the signals of the microphone device and the Receiving device in response to an output signal of the classification device.
  • the present invention relates to a method for operating a corresponding hearing device.
  • a hearing device here means any device that can be carried in or on the ear or head, in particular a hearing device, 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), hearing aid with external receiver (RIC: receiver in the canal) and in-the-ear hearing aids (IDO), e.g. Concha hearing aids or canal hearing aids (ITE, CIC).
  • BTE behind-the-ear hearing aids
  • RIC hearing aid with external receiver
  • IDO in-the-ear hearing aids
  • ITE 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, e.g. 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 the signal processing unit 3 is effected by a likewise integrated into the hearing aid housing 1 battery. 5
  • Modern hearing aids usually have powerful directional microphones that are often adaptive and multi-channel realized.
  • directional microphones can be activated and deactivated by situation detection algorithms to always provide the user with the most advantageous microphone mode.
  • the input signal of the hearing aid is supplied.
  • the operation is flawless.
  • problems arise in the superimposition of microphone signals in addition to, for example, wirelessly fed audio signals.
  • the situation recognition unit works on the signal mixed together from microphone and audio signal and adapts the microphone setting on the basis of this.
  • the situation detection is fed in this case with a little meaningful signal and can consequently the Microphone mode does not adapt correctly to the actual situation.
  • the microphone mode In order to meet this problem reasonably, is currently fixed as a workaround solution, the microphone mode often manually from "automatic" to "omnidirectional".
  • the hearing aid has several input sources such as microphone, telecoil and the like.
  • the hearing device has a selection unit, a signal processing unit and a classification unit. One or more active sources are selected in the selection unit, and information in the classification unit is also processed in relation to the selected or selected sources.
  • a controller analyzes the signals received from the transducers and controls the transfer function between the transducers and a loudspeaker. Parallel to the signals of the microphones, the signals of the induction sensors are used for switching or control.
  • a classification device examines whether the induction signal and the acoustic signal are each a useful signal.
  • the document discloses DE 10 2007 008 738 A1 a method for improving spatial perception.
  • the input signal is analyzed, with a separation of sound sources.
  • when analyzing a signal class can be determined to control the hearing aid accordingly.
  • the hearing device receives at least one externally fed signal next to a microphone signal and controls the hearing device accordingly.
  • WO 2008/071236 A2 a hearing aid system with improved noise suppression described.
  • Several input signals of the hearing aid are respectively classified by a classifier.
  • the similarity of a current acoustic scene and a given acoustic scene is determined.
  • the input signals are sent for further processing.
  • a hearing aid device with compensation of acoustic and electromagnetic feedback signals is known.
  • the hearing aid has a microphone and a coil for signal recording. Switching between microphone and coil operation is done with the aid of a classifier. This detects whether the microphone or on the telecoil speech is present and switch then automatically seamless, if necessary, in the intended operation, eg. B. pure microphone operation, pure coil operation or mixed operation.
  • the object of the present invention is thus to provide a hearing device with which it is possible to more reliably recognize an acoustic situation when there are a plurality of different input signals.
  • a corresponding method for operating a hearing device to be proposed.
  • this object is achieved by a hearing device according to claim 1.
  • the invention provides a method according to claim 8.
  • the hearing device according to the invention or the inventive method it is possible by the hearing device according to the invention or the inventive method to be able to better recognize acoustic situations as a function of the individual input signals.
  • the situation recognition may be performed separately in response to microphone signals and audio signals that have been received electromagnetically.
  • a correlation of the recorded signals is determined with the preprocessing device, so that a corresponding control signal of the classification device can also be provided by the preprocessing device.
  • the correlation of the recorded signals also gives a clear indication of the acoustic situation.
  • the classification device is preceded by a pre-processing device with which it is possible to determine with the aid of the level which of the recorded signals is dominant, and with which a corresponding control signal of the classification device can be provided.
  • the level makes it possible to reliably detect the dominance of an input signal, which in turn allows the dominant signal to be analyzed to better identify the situation.
  • a delay of the signal from the microphone device may be preconfigured for the correlation analysis according to a known delay of the signal from the receiving device. In this way, a reliable result can be quickly determined for the correlation analysis.
  • a decision matrix can be implemented in the classification device in order to determine the output signal of the classification device on the basis of a signal obtained by the preprocessing device. As a result, a decision based on the determined acoustic situation can be made without calculation effort.
  • the signal processing means may include a directional microphone control unit, a noise canceling unit and have a feedback unit, wherein upon dominance of the signal of the receiving device relative to the signal of the microphone device of the three units, only the noise reduction unit and the feedback unit are adapted according to the determined acoustic situation. For example, if the electromagnetic received audio signal dominates, it is advantageous if the microphone device is switched firmly to omnidirectional operation so that the user remains responsive from all directions.
  • the classification device can use the signal of the microphone device at predetermined time intervals for determining the acoustic situation when the signal of the receiving device dominates. This further refines the situation detection, because it is not only the dominant signal used for situation detection.
  • the signal of the microphone device is used by the classification device for determining the acoustic situation. This reflects the principle that the natural acoustic environment is paramount for situational awareness.
  • a microphone device with two microphones 10 and 11 is provided here.
  • the signals of both microphones 10, 11 are linked together so that a signal m of the microphone device results.
  • the hearing aid has, for example, a telephone coil 12 and an audio input 13.
  • these receiving components 12, 13 are subsumed under the term "receiving device" here. From this receiving device, that is, from the electrical or electromagnetic receivers, at least one signal e is provided.
  • the signal m of the microphone device and the signal e of the receiving device is fed to a pre-processing device 13.
  • a pre-processing device 13 This has, for example, a level meter to determine which of the two signals m or e has the higher level.
  • the preprocessing device 14 can also perform a correlation analysis with which a correlation variable between the two signals m and e can be determined.
  • the preprocessing device 14 passes the signals m and e to a classification device 15 and supplies it with an additional control signal s in accordance with its level or correlation variable.
  • the situation detection is then practically carried out on the basis of the control signal s by supplying one of the two signals m or e to a downstream signal processing unit 16 in accordance with a predetermined logic.
  • the signal processing device 16 is additionally controlled or adapted on the basis of the classification result or the situation recognition, for which reason the classification device 15 of the signal processing device 16 can provide an additional control signal c. Finally, the output signal a of the classification device 15 amplified by the signal processing device 16 to a receiver 17.
  • the situation recognition unit e.g., the classification means 15
  • the situation recognition unit provides acoustic and electrical input signals m and e separately.
  • an independent check of the input signals m and e takes place in advance, e.g. as mentioned by criteria such as level or correlation.
  • criteria such as level or correlation.
  • the delay of an audio signal e.g. caused by processing elements of a wireless transmission path, to be preconfigured.
  • acoustic situations can be detected more reliably.
  • the acoustic situation "television” can be recognized by the fact that in addition to the acoustic transmission, an additional similarly strong wireless transmission takes place and both signals are correlated with each other.
  • the acoustic situation "music transmission in a quiet environment” e.g., jogging in the woods with music entertainment by radio
  • the electromagnetic input signal has a much higher level than the microphone signal and both signals are uncorrelated.
  • the situation detection can be configured via a decision matrix as to which signal is to be used for the situation detection.
  • a decision matrix could look like this: Audio microphone directional microphone X interference X X SoundSmoothing X X feedback X X
  • This decision matrix means that if the audio signal outweighs the directional microphone is not turned on, but an adaptation to noise, sound smoothing and feedback takes place. If, on the other hand, the microphone signal predominates, the directional microphone is additionally switched on.
  • the decision matrix may be configurable in the form of software by, for example, an acoustician. Alternatively, the decision matrix can also be fixed.
  • the situation recognition preferably takes place exclusively on the basis of the microphone signal.
  • the situation recognition unit operates exclusively on the basis of the audio signal.
  • the microphone is set to the omnidirectional operation to ensure responsiveness of the user from all directions.
  • the microphone can be adjusted for the dominance of the audio signal by means of the independently available microphone signal. For this purpose, for example, the microphone signal is supplied to the situation detection for a short time at longer intervals and classifies the environment. After a decision, the classification unit continues to work with the dominant audio signal.
  • both signals m and e of the microphone device 10, 11 and the receiving device 12, 13 are approximately the same, and if there is also a high correlation between the two signals, it is advantageous if the situation recognition is performed primarily on the basis of the microphone signal.
  • the described embodiment thus shows for the hearing aid wearer the advantage that the situation recognition with a "pure" signal is free of superposition effects is carried out.
  • the correlation can contribute several signals to the situation detection. The situation detection is thus much more reliable.
  • the hearing aid wearer has the advantage that the adaptation of the directional microphone in the case of dominant audio signals is not based on the audio signal but on the basis of the microphone which characterizes the actual acoustic situation.

Claims (8)

  1. Prothèse auditive, comprenant
    - un dispositif ( 10, 11 ) formant microphone pour la réception d'un signal acoustique,
    - un dispositif ( 12, 13 ) de réception pour la réception d'un signal électrique ou électromagnétique,
    - un dispositif ( 15 ) de classification pour la détermination d'une situation acoustique à partir des signaux ( m, e ) du dispositif formant microphone et du dispositif de réception, ainsi que
    - un dispositif ( 16 ) de traitement du signal pour le traitement de l'un des deux signaux ( m, e ) du dispositif ( 10, 11 ) formant microphone ou du dispositif ( 12, 13 ) de réception en fonction d'un premier signal ( c ) de commande du dispositif ( 15 ) de classification, dans laquelle
    - les signaux ( m, e ) du dispositif ( 10, 11 ) formant microphone et du dispositif ( 12, 13 ) de réception sont mis individuellement à disposition du dispositif ( 15 ) de classification pour reconnaître la situation,
    caractérisée en ce que
    - il est monté en amont du dispositif ( 15 ) de classification un dispositif ( 14 ) de prétraitement, par lequel une corrélation des signaux ( m, e ) reçus peut être déterminée et par lequel un deuxième signal ( s ) de commande correspondant du dispositif ( 15 ) de classification peut être mis à disposition pour la détermination de la situation acoustique.
  2. Prothèse auditive suivant la revendication 1, dans laquelle, par le dispositif ( 14 ) de prétraitement, il peut être déterminé au moyen du niveau celui des signaux reçus qui est prédominant et, par ce dispositif ( 14 ), le deuxième signal ( s ) de commande peut être mis à disposition de manière adéquate du dispositif ( 15 ) de classification.
  3. Prothèse auditive suivant la revendication 1 ou 2, dans laquelle, dans le dispositif ( 14 ) de prétraitement, il est préconfiguré pour l'analyse de corrélation un retard du signal du dispositif ( 10, 11 ) formant microphone suivant un retard connu du signal du dispositif ( 12, 13 ) de réception.
  4. Prothèse auditive suivant l'une des revendications 2 à 3, dans laquelle il est mis en oeuvre dans le dispositif ( 15 ) de classification une matrice de décision, pour déterminer au moyen du deuxième signal ( s ) de commande obtenu par le dispositif ( 14 ) de prétraitement le signal ( a ) de sortie du dispositif ( 15 ) de classification.
  5. Prothèse auditive suivant l'une des revendications précédentes, dans laquelle le dispositif ( 16 ) de traitement du signal comporte une unité de commande de microphone directionnelle, une unité de suppression de bruits parasites et une unité de réaction et dans laquelle, lorsque le signal ( e ) du dispositif ( 12, 13 ) de réception est prédominant par rapport au signal ( m ) du dispositif ( 10, 11 ) formant microphone parmi les trois unités, seule l'unité de suppression de bruits parasites et l'unité de réaction sont adaptées conformément à la situation acoustique déterminée.
  6. Prothèse auditive suivant l'une des revendications 2 à 5, dans laquelle le dispositif ( 15 ) de classification tire parti, lorsque le signal ( e ) du dispositif ( 12, 13 ) de réception est prédominant, du signal ( m ) du dispositif ( 10, 11 ) formant microphone à des intervalles de temps déterminés à l'avance pour déterminer la situation acoustique.
  7. Prothèse auditive suivant l'une des revendications 2 à 4, dans laquelle lorsqu'aucun des deux signaux ( m, e ) reçus est prédominant, le signal ( m ) du dispositif ( 10, 11 ) formant microphone est mis à profit par le dispositif ( 15 ) de classification pour la détermination de la situation acoustique.
  8. Procédé pour faire fonctionner une prothèse auditive par
    - réception d'un signal acoustique,
    - réception d'un signal électrique ou électromagnétique,
    - détermination d'une situation acoustique à partir des signaux ( m, e ) reçus et
    - traitement des signaux ( m, e ) reçus en fonction de la situation acoustique déterminée, dans lequel
    - pour la détermination de la situation acoustique, les signaux ( m, e ) reçus sont mis à disposition séparément,
    caractérisé en ce que
    - on détermine une corrélation entre les signaux ( m, e ) reçus et on en tire un signal ( s ) de commande correspondant dont il est tiré parti pour la détermination de la situation acoustique.
EP09173019.2A 2008-10-28 2009-10-14 Dispositif auditif doté d'une unité de reconnaissance de situation spéciale et procédé de fonctionnement d'un dispositif auditif Active EP2182741B2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008053458A DE102008053458A1 (de) 2008-10-28 2008-10-28 Hörvorrichtung mit spezieller Situationserkennungseinheit und Verfahren zum Betreiben einer Hörvorrichtung

Publications (3)

Publication Number Publication Date
EP2182741A1 EP2182741A1 (fr) 2010-05-05
EP2182741B1 true EP2182741B1 (fr) 2011-06-29
EP2182741B2 EP2182741B2 (fr) 2014-10-15

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EP09173019.2A Active EP2182741B2 (fr) 2008-10-28 2009-10-14 Dispositif auditif doté d'une unité de reconnaissance de situation spéciale et procédé de fonctionnement d'un dispositif auditif

Country Status (5)

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US (1) US8355516B2 (fr)
EP (1) EP2182741B2 (fr)
AT (1) ATE515153T1 (fr)
DE (1) DE102008053458A1 (fr)
DK (1) DK2182741T4 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5514698B2 (ja) * 2010-11-04 2014-06-04 パナソニック株式会社 補聴器
CN103262578B (zh) 2010-12-20 2017-03-29 索诺瓦公司 操作听力设备的方法及听力设备
EP2528358A1 (fr) * 2011-05-23 2012-11-28 Oticon A/S Procédé d'identification d'un canal de communication sans fil dans un système sonore
DE102013212853A1 (de) 2013-07-02 2015-01-08 Siemens Medical Instruments Pte. Ltd. Erkennen von Hörsituationen mit unterschiedlichen Signalquellen
EP2835986B1 (fr) 2013-08-09 2017-10-11 Oticon A/s Dispositif d'écoute doté d'un transducteur d'entrée et d'un récepteur sans fil
DE102017202480A1 (de) * 2017-02-16 2018-08-16 Sivantos Pte. Ltd. Verfahren zum Betrieb einer Hörvorrichtung und Hörvorrichtung

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0772375A3 (fr) † 1995-10-31 1998-06-24 Lux-Wellenhof, Gabriele Prothèse auditive et appareil auxiliaire
DE59609754D1 (de) * 1996-06-21 2002-11-07 Siemens Audiologische Technik Programmierbares Hörgerätesystem und Verfahren zum Ermitteln optimaler Parametersätze bei einem Hörhilfegerät
AU2001221399A1 (en) * 2001-01-05 2001-04-24 Phonak Ag Method for determining a current acoustic environment, use of said method and a hearing-aid
DE10146886B4 (de) † 2001-09-24 2007-11-08 Siemens Audiologische Technik Gmbh Hörgerät mit automatischer Umschaltung auf Hörspulenbetrieb
US6862359B2 (en) * 2001-12-18 2005-03-01 Gn Resound A/S Hearing prosthesis with automatic classification of the listening environment
US7889879B2 (en) * 2002-05-21 2011-02-15 Cochlear Limited Programmable auditory prosthesis with trainable automatic adaptation to acoustic conditions
WO2005018279A1 (fr) † 2003-08-05 2005-02-24 Oticon A/S Systeme de prothese auditive a dispositif de commutation
DE102005019149B3 (de) 2005-04-25 2006-08-31 Siemens Audiologische Technik Gmbh Hörhilfevorrichtung mit Kompensation von akustischen und elektromagnetischen Rückkopplungssignalen
ATE471041T1 (de) * 2005-08-23 2010-06-15 Phonak Ag Verfahren zum betrieb eines hörgerätes sowie ein hörgerät
EP2123113B1 (fr) 2006-12-15 2018-02-14 Sonova AG Système auditif à suppression de bruit améliorée et procédé d'opération d'un tel système
DE102007008738A1 (de) * 2007-02-22 2008-08-28 Siemens Audiologische Technik Gmbh Verfahren zur Verbesserung der räumlichen Wahrnehmung und entsprechende Hörvorrichtung
DE102007033877B3 (de) * 2007-07-20 2009-02-05 Siemens Audiologische Technik Gmbh Verfahren zur Signalverarbeitung in einer Hörhilfe

Also Published As

Publication number Publication date
DK2182741T3 (da) 2011-10-31
ATE515153T1 (de) 2011-07-15
US8355516B2 (en) 2013-01-15
EP2182741A1 (fr) 2010-05-05
DE102008053458A1 (de) 2010-04-29
EP2182741B2 (fr) 2014-10-15
DK2182741T4 (en) 2015-01-19
US20100104120A1 (en) 2010-04-29

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