EP1956867B1 - Appareil auditif avec orientation automatique d'un microphone directionnel et procédé correspondant - Google Patents

Appareil auditif avec orientation automatique d'un microphone directionnel et procédé correspondant Download PDF

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Publication number
EP1956867B1
EP1956867B1 EP08100194A EP08100194A EP1956867B1 EP 1956867 B1 EP1956867 B1 EP 1956867B1 EP 08100194 A EP08100194 A EP 08100194A EP 08100194 A EP08100194 A EP 08100194A EP 1956867 B1 EP1956867 B1 EP 1956867B1
Authority
EP
European Patent Office
Prior art keywords
inclination
directional microphone
hearing
hearing apparatus
preferred sound
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.)
Revoked
Application number
EP08100194A
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German (de)
English (en)
Other versions
EP1956867A1 (fr
Inventor
Beng Hai Tan
Wai Kit David Ho
Wee Haw Koo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sivantos GmbH
Original Assignee
Siemens Audioligische Technik GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Application filed by Siemens Audioligische Technik GmbH filed Critical Siemens Audioligische Technik GmbH
Publication of EP1956867A1 publication Critical patent/EP1956867A1/fr
Application granted granted Critical
Publication of EP1956867B1 publication Critical patent/EP1956867B1/fr
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • H04R25/405—Arrangements for obtaining a desired directivity characteristic by combining a plurality of transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00—Signal processing covered by H04R, not provided for in its groups
    • H04R2430/20—Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic

Definitions

  • the present invention relates to a hearing aid with a directional microphone having a preferred sound pickup direction. Moreover, the present invention relates to a corresponding method for operating a hearing device.
  • a hearing device is understood to mean, in particular, a hearing device, but also a headset or headphones.
  • 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) and in-the-ear hearing aids (IDO), e.g. also Concha hearing aids or canal hearing aids (CIC), provided.
  • BTE behind-the-ear hearing aids
  • IDO in-the-ear 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. 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 also 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
  • Hearing aids with a directional microphone require at least two microphones.
  • the signals of the several microphones are linked together in such a way that the desired directional characteristic results.
  • this directionality also depends on the characteristics of the individual microphones and their spatial arrangement to each other.
  • the microphones So far, one strives to arrange the microphones as horizontally as possible to each other. This usually results in a preferred sound pickup direction for the hearing device user in the horizontal direction forward. However, if the hearing aid wearer does not see his interlocutor for a short time, for example if he tends his head to the table, then the preferred sound pickup direction of the directional microphone also points to the table and no longer to the conversation partner. This can lead to impaired hearing quality.
  • DE 102005006660 B3 a method for adjusting a hearing aid. It can be considered as additional information in the setting of a parameter information about an orientation of the hearing aid in two or three dimensions.
  • the orientation of the hearing aid can be measured by a compass or a tilt sensor.
  • a blind source separation is quickly adapted when a wearer of the hearing device moves his head.
  • To adapt the blind source separation normally has to be calculated by a computing device alone based on input signals from microphones, a direction from which a sound signal of a particular sound source arrives.
  • a head position of the hearing device wearer is detected with a position determination device, which is then taken into account in the direction calculation.
  • the object of the present invention is thus to improve the control of the directional characteristic of a directional microphone to the effect that the hearing quality increases.
  • this object is achieved by a hearing device according to claim 1.
  • This hearing device comprises in particular a directional microphone which has a preferred sound pickup direction, as well as an inclination determination device for determining an inclination of the preferred sound recording direction with respect to a fixed with respect to the environment of the hearing device, predetermined direction and an alignment unit, with which the preferred sound pickup direction of the directional microphone can be aligned in dependence on the determined inclination.
  • the invention provides a method according to claim 6 for operating a hearing device with a directional microphone, which has a preferred sound pickup direction.
  • This method includes in particular the steps:
  • a direction is thus predetermined from outside, at which the hearing device is aligned of the directional microphone.
  • the alignment of the directional microphone can either be done by software or signal technology or by physical alignment of the individual microphones or a microphone array.
  • the inclination determination device preferably comprises a gyro.
  • a gyro Such inertial wheels or gyroscopes are known from spacecraft for changing angular motions. Even in the event of faults, the rotating system is returned to a stable state.
  • the inclination determination device may also use a liquid surface to determine the inclination.
  • gravity is used as an external force, which always ensures a horizontal liquid surface.
  • the alignment unit always aligns the preferred sound recording horizontally in the direction of the directional microphone.
  • the orientation of the directional microphone can be carried out in a more targeted manner, especially during conversations.
  • the directional microphone conveniently has at least two microphones, which are aligned so that the preferred sound recording in the direction of the directional microphone in the usual carrying position points horizontally forward.
  • the directional characteristic is improved when the directional microphone has three or more microphones.
  • FIG. 2 This in FIG. 2 exemplified hearing aid has substantially the same structure as the hearing aid of FIG. 1 , in addition, however, an inclination determination device, here a gyroscope or gyroscope 6, is provided in the hearing aid.
  • the gyroscope 6 always provides a constant direction even when the hearing aid is tilted, tilted or otherwise moved.
  • FIG. 3 such a gyroscopic stabilizer is shown.
  • a gyro 10 is rotatably mounted with its axis in a first ring 11. This in turn is mounted in a second ring 12, so that the axis of rotation of the gyroscope 10 can assume any spatial direction in the usual way of a gyroscope.
  • the inclination determination device 6 determines the corresponding angles ⁇ , ⁇ and ⁇ with respect to the main axes x, y and z.
  • the absolute horizontal can always be determined as the fixed, predetermined direction with respect to the surroundings of the hearing device.
  • an alignment unit 7 is integrated. With it, the directional characteristics of the two microphones 2, with which a directional microphone is formed to adjust.
  • the preferential sound pickup direction VR1 initially lies on the straight line determined by the centers of the microphones. If it is determined on the basis of the inclination determination device, in this case the gyro 6, that the device has tilted, the preferred sound recording direction can be corrected accordingly so that the direction VR2 results. Then the preferred sound recording direction would be aligned horizontally again and the hearing aid wearer could best perceive the horizontally incident sound.
  • the alignment unit 7 refers to the corresponding angle of the gyroscope 6 or the "spirit level", whereupon the new directional characteristic can be calculated and applied for the subsequent signal processing.
  • the microphones 2 of the directional microphone can actually be adjusted in their physical alignment by miniature plates. This also allows the directional characteristic to be influenced to a certain extent.

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)
  • Gyroscopes (AREA)

Claims (8)

  1. Prothèse auditive comprenant
    - un microphone ( 2 ) directionnel incorporé, qui a une direction préférée de réception du son,
    - un dispositif ( 6 ) de détermination d'inclinaison, pour la détermination d'une inclinaison de la direction préférée de réception du son par rapport à une direction fixe prescrite par rapport à ce qui entoure la prothèse auditive, dans laquelle, à cet effet, une inclinaison de la prothèse auditive peut être fixée par le dispositif (6) de détermination de l'inclinaison, et
    - une unité ( 7 ) d'orientation, par laquelle la direction préférée de réception du son du microphone ( 2 ) directionnel est orientable en fonction de l'inclinaison déterminée.
  2. Prothèse auditive suivant la revendication 1, dans laquelle le dispositif (6) de détermination d'inclinaison comprend une toupie.
  3. Prothèse auditive suivant la revendication 1 ou 2, dans laquelle le dispositif (6) de détermination d'inclinaison utilise une surface liquide pour la détermination de l'inclinaison.
  4. Prothèse auditive suivant l'une des revendications précédentes, dans laquelle l'unité (7) d'orientation oriente, toujours horizontalement, la direction préférée de réception du son du microphone ( 2 ) directionnel.
  5. Prothèse auditive suivant l'une des revendications précédentes, dans laquelle le microphone ( 2 ) directionnel comporte au moins deux microphones.
  6. Procédé pour faire fonctionner une prothèse auditive ayant un microphone (2) directionnel incorporé, qui a une direction préférée de réception du son, par
    - détermination d'une inclinaison de la direction préférée de réception du son par rapport à une direction fixe prescrite par rapport à ce qui entoure la prothèse auditive, en constatant si la prothèse auditive est inclinée, et
    - orientation de la direction préférée de réception du son du microphone ( 2 ) directionnel en fonction de l'inclinaison déterminée.
  7. Procédé suivant la revendication 6, dans lequel on détermine l'inclinaison à l'aide d'une toupie ou d'une surface liquide.
  8. Procédé suivant la revendication 6 ou 7, dans lequel on oriente toujours horizontalement la direction préférée de réception du son du microphone ( 2 ) directionnel.
EP08100194A 2007-02-06 2008-01-08 Appareil auditif avec orientation automatique d'un microphone directionnel et procédé correspondant Revoked EP1956867B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007005861A DE102007005861B3 (de) 2007-02-06 2007-02-06 Hörvorrichtung mit automatischer Ausrichtung des Richtmikrofons und entsprechendes Verfahren

Publications (2)

Publication Number Publication Date
EP1956867A1 EP1956867A1 (fr) 2008-08-13
EP1956867B1 true EP1956867B1 (fr) 2012-02-29

Family

ID=39018165

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08100194A Revoked EP1956867B1 (fr) 2007-02-06 2008-01-08 Appareil auditif avec orientation automatique d'un microphone directionnel et procédé correspondant

Country Status (5)

Country Link
US (1) US20080192968A1 (fr)
EP (1) EP1956867B1 (fr)
AT (1) ATE547901T1 (fr)
DE (1) DE102007005861B3 (fr)
DK (1) DK1956867T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2838210A1 (fr) 2013-08-15 2015-02-18 Oticon A/s Système électronique portable avec communication améliorée sans fil

Families Citing this family (18)

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Publication number Priority date Publication date Assignee Title
US20100074460A1 (en) * 2008-09-25 2010-03-25 Lucent Technologies Inc. Self-steering directional hearing aid and method of operation thereof
WO2012010195A1 (fr) * 2010-07-19 2012-01-26 Advanced Bionics Ag Instrument auditif et procédé de fonctionnement associé
US9031256B2 (en) * 2010-10-25 2015-05-12 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for orientation-sensitive recording control
US9552840B2 (en) 2010-10-25 2017-01-24 Qualcomm Incorporated Three-dimensional sound capturing and reproducing with multi-microphones
US8855341B2 (en) 2010-10-25 2014-10-07 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for head tracking based on recorded sound signals
DE102012214081A1 (de) * 2012-06-06 2013-12-12 Siemens Medical Instruments Pte. Ltd. Verfahren zum Fokussieren eines Hörinstruments-Beamformers
KR102192361B1 (ko) * 2013-07-01 2020-12-17 삼성전자주식회사 머리 움직임을 이용한 사용자 인터페이스 방법 및 장치
EP2908549A1 (fr) 2014-02-13 2015-08-19 Oticon A/s Dispositif de prothèse auditive comprenant un élément de capteur
WO2017105511A1 (fr) 2015-12-18 2017-06-22 Advanced Bionics Ag Implants cochléaires comprenant un appareil magnétique compatible avec l'irm
DE102016205728B3 (de) * 2016-04-06 2017-07-27 Sivantos Pte. Ltd. Verfahren zur physischen Anpassung eines Hörgeräts, Hörgerät und Hörgerätesystem
WO2018190813A1 (fr) 2017-04-11 2018-10-18 Advanced Bionics Ag Implants cochléaires avec aimants rapportés
CN110545880B (zh) 2017-04-25 2023-09-01 领先仿生公司 具有抗冲击的与mri兼容的磁体设备的耳蜗植入物
EP3700622B1 (fr) 2017-10-26 2022-10-19 Advanced Bionics AG Modules externes et systèmes de stimulation cochléaire implantables comprenant ceux-ci
US10567888B2 (en) 2018-02-08 2020-02-18 Nuance Hearing Ltd. Directional hearing aid
EP4008397B1 (fr) * 2018-02-15 2023-09-13 Advanced Bionics AG Modules externes et systèmes de stimulation cochléaire implantables les comprenant
US11510016B2 (en) 2018-10-08 2022-11-22 Sonova Ag Beam former calibration of a hearing device
AU2020316738B2 (en) 2019-07-21 2023-06-22 Nuance Hearing Ltd. Speech-tracking listening device
EP4059233A1 (fr) * 2019-11-14 2022-09-21 Starkey Laboratories, Inc. Dispositif électronique porté sur l'oreille conçu pour compenser une posture voûtée ou courbée

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FR2731521B1 (fr) * 1995-03-06 1997-04-25 Rockwell Collins France Appareil personnel de goniometrie
US5920024A (en) * 1996-01-02 1999-07-06 Moore; Steven Jerome Apparatus and method for coupling sound to motion
DE10045197C1 (de) * 2000-09-13 2002-03-07 Siemens Audiologische Technik Verfahren zum Betrieb eines Hörhilfegerätes oder Hörgerätessystems sowie Hörhilfegerät oder Hörgerätesystem
DE10351509B4 (de) * 2003-11-05 2015-01-08 Siemens Audiologische Technik Gmbh Hörgerät und Verfahren zur Adaption eines Hörgeräts unter Berücksichtigung der Kopfposition
DE102004021964B3 (de) * 2004-05-04 2005-10-20 Siemens Audiologische Technik Hörhilfevorrichtung
DE102005006660B3 (de) * 2005-02-14 2006-11-16 Siemens Audiologische Technik Gmbh Verfahren zum Einstellen eines Hörhilfsgeräts, Hörhilfsgerät und mobile Ansteuervorrichtung zur Einstellung eines Hörhilfsgeräts sowie Verfahren zur automatischen Einstellung
US7542580B2 (en) * 2005-02-25 2009-06-02 Starkey Laboratories, Inc. Microphone placement in hearing assistance devices to provide controlled directivity
DE102005017496B3 (de) * 2005-04-15 2006-08-17 Siemens Audiologische Technik Gmbh Mikrofoneinrichtung mit Orientierungssensor und entsprechendes Verfahren zum Betreiben der Mikrofoneinrichtung

Cited By (1)

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Publication number Priority date Publication date Assignee Title
EP2838210A1 (fr) 2013-08-15 2015-02-18 Oticon A/s Système électronique portable avec communication améliorée sans fil

Also Published As

Publication number Publication date
DK1956867T3 (da) 2012-06-25
EP1956867A1 (fr) 2008-08-13
DE102007005861B3 (de) 2008-08-21
ATE547901T1 (de) 2012-03-15
US20080192968A1 (en) 2008-08-14

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