EP2018080A2 - Dispositif auditif doté d'un traitement du signal à base de paramètres dépendant de la construction et procédé correspondant - Google Patents

Dispositif auditif doté d'un traitement du signal à base de paramètres dépendant de la construction et procédé correspondant Download PDF

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Publication number
EP2018080A2
EP2018080A2 EP08104629A EP08104629A EP2018080A2 EP 2018080 A2 EP2018080 A2 EP 2018080A2 EP 08104629 A EP08104629 A EP 08104629A EP 08104629 A EP08104629 A EP 08104629A EP 2018080 A2 EP2018080 A2 EP 2018080A2
Authority
EP
European Patent Office
Prior art keywords
hearing device
signal processing
hearing
processing unit
microphones
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.)
Withdrawn
Application number
EP08104629A
Other languages
German (de)
English (en)
Other versions
EP2018080A3 (fr
Inventor
Eghart Fischer
Erika Radick
Peter Nikles
Benjamin Schmidt
Christian Schmitt
Erwin Singer
Cornelia Wiedenbrüg
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 Pte Ltd
Original Assignee
Siemens Medical Instruments Pte Ltd
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
Application filed by Siemens Medical Instruments Pte Ltd filed Critical Siemens Medical Instruments Pte Ltd
Publication of EP2018080A2 publication Critical patent/EP2018080A2/fr
Publication of EP2018080A3 publication Critical patent/EP2018080A3/fr
Withdrawn legal-status Critical Current

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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
    • H04R25/40—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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Electric hearing aids
    • H04R25/65—Housing parts, e.g. shells, tips or moulds, or their manufacture
    • H04R25/652—Ear tips; Ear moulds
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/77—Design aspects, e.g. CAD, of hearing aid tips, moulds or housings
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/13—Hearing devices using bone conduction transducers

Definitions

  • the present invention relates to a hearing apparatus having a signal processing unit for executing a processing algorithm. Moreover, the present invention relates to a corresponding method for implementing a processing algorithm of a hearing device.
  • the term hearing device is understood here in particular as a hearing device; however, the term also includes other portable acoustic devices.
  • 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), in-the-ear hearing aids (IDO), Concha hearing aids, etc. are provided.
  • BTE behind-the-ear hearing aids
  • IDO in-the-ear hearing aids
  • Concha hearing aids etc.
  • 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 are one or more microphones 2 to Built-in sound recording from the environment.
  • 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
  • in-the-ear hearing aids in which several microphones are used to record sound signals.
  • directionality of the directional characteristic i. ensures a directivity of the hearing aid.
  • a particularly rapid production of individually shaped shells of in-the-ear hearing aids can be achieved by the so-called rapid shell manufacturing (RSM), in which electronic data relating to the shape of the shells are used.
  • RSM rapid shell manufacturing
  • microphones are positioned on a faceplate.
  • the necessary positioning data of the microphones such as the distances of the microphone outputs, are provided to the RSM software.
  • the faceplate is also individually aligned.
  • the positioning of the microphones has an immediate effect on the directionality of the microphones.
  • the positioning data for a faceplate type are specified independently of the customer.
  • the Publication DE 44 98 516 C2 discloses a directional gradient microphone system in which no more than three microphones are provided and a gradient order of an output signal relative to a common axis at least two gradient orders higher than that of each of the microphones. This directional gradient microphone system also takes into account a distance between two adjacent microphones.
  • the Reference US Pat. No. 6,879,697 B2 discloses a method of manufacturing a hearing aid including a hearing aid shell and a faceplate.
  • the hearing aid is manufactured using CAD / CAM models.
  • the object of the present invention is therefore to adapt the directional characteristic of a hearing device whose shell is produced in particular automatically.
  • a hearing system with a hearing device including a signal processing unit for executing a processing algorithm, and with a production control device for providing at least one design-related parameter of the hearing device, wherein the signal processing unit determines the processing algorithm based on the at least one design-related parameter of the hearing device or one thereof and at least one design-related parameter of the hearing device or the control value derived therefrom is provided by the production control device of the signal processing unit.
  • a method of executing a processing algorithm of a hearing apparatus comprising a signal processing unit by providing at least one design-related parameter of the hearing apparatus by a manufacturing controller, and executing the processing algorithm of the hearing apparatus by the signal processing unit on the basis of the design-related parameter or one derived therefrom Control value, wherein from the manufacturing control device the signal processing unit, the at least one design-related parameters of the hearing device or the control value derived therefrom is provided.
  • a signal processing algorithm of the hearing device can be realized particularly quickly, precisely and customer-dependent.
  • specially trained processing algorithms can thus be implemented which could not be realized without the above parameters or only by way of detours, and by which the perceptibility of the sound signals can be markedly improved.
  • At least two microphones can receive a sound signal in the hearing device, wherein a distance between the at least two microphones as the construction-related parameters of the hearing device or a control value derived therefrom the signal processing unit is provided to perform a preferably automated adjustment of a directional characteristic of the hearing.
  • the algorithm In order to achieve optimum directivity, the algorithm must know the distance between the microphones, since then corresponding internal delay times must be set. Furthermore, e.g. the strength of the microphone noise occurring from the distance of the microphones, which in turn has effects on noise reduction algorithms.
  • an orientation angle of a connecting straight line between the at least two microphones with respect to a given straight line or plane is provided as the construction-related parameter of the hearing device or a control value of the signal processing unit derived therefrom in order to carry out an adaptation of the directional characteristic of the hearing device.
  • the angle at which the microphones are located relative to the horizontal viewing direction of the hearing aid wearer are, allows conclusions about the maximum achievable strength of the directivity and thus also allows a parameterization that is optimally adapted to this design-related angle.
  • a hearing aid 22 is manufactured using rapid shell manufacturing (RSM) software 6.
  • the hearing device 22 comprises a faceplate 23, which is provided with a plurality of microphone holes 25 for lying behind microphones 2.
  • the hearing device 22 also has a signal processing unit 3, which processes the sound signals received by the microphones 2.
  • a directivity of the directional characteristic of the hearing device 22 is achieved by a phase control of the microphones 2. Changing the phase shift between the signals of the microphones 2, pivots the main lobe of the directional characteristic, so that you can ensure a directivity of the hearing aid 22 in a desired direction.
  • spatial parameters of the microphone holes 25 of the signal processing unit 3 must be known. These spatial parameters, which differ for each individually shaped hearing device 22, are determined during the development phase of the hearing device 22 and stored in or for the RSM software 6. The basic idea here is to be able to automatically carry out a precise adaptation of the directional characteristic or another algorithm of the hearing device 22.
  • the spatial parameters of the microphone holes 25, and possibly further design-related parameters of the hearing device 22, which are known to the RSM software 6, stored in the hearing aid 22 and the signal processing unit 3 is provided.
  • the design-related parameters can be used directly by the signal processing unit 3 of the hearing aid 22 to carry out the adjustment of the directional characteristic.
  • the design-related parameters of the hearing device 22 can be taken from the RSM software 6 and transferred to a fitting software 8 by an acoustician. If a user wearing the hearing device 22 wishes to carry out an adaptation of the directional characteristic of his hearing device 22, then all design-related parameters of his hearing device 22 are available to the acoustician. Thus, the user at a Visit to the acoustician to set a suitable for him directivity of his hearing aid.
  • This embodiment has the advantage that the hearing device 22 does not have to be loaded with the design-related parameters per se.
  • Fig. 3 1 shows the signal flow diagram of a simple embodiment of a method for executing a processing algorithm of a hearing device such as a hearing device 22. Accordingly, the method begins in step 10, after which a hearing device 2 is initially developed and manufactured with an RSM software 6 in step 11.
  • the hearing apparatus 22 is assigned a signal processing unit 3, which serves for processing the sound signals received by means of a plurality of microphones 2.
  • the hearing device 22 is, as already mentioned above, equipped with a faceplate 23 and microphone holes 25 arranged thereon for microphones 2.
  • step 12 of the method all construction-related parameters of the hearing device 22 are determined, if still necessary.
  • the signal processing unit 3 of the hearing apparatus 22 is capable of executing one or more algorithms, particularly with respect to the directional characteristic, on the basis of the design-related parameters (step 16).
  • step 18 the process ends in step 18.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Manufacturing & Machinery (AREA)
  • Circuit For Audible Band Transducer (AREA)
EP08104629A 2007-07-20 2008-07-03 Dispositif auditif doté d'un traitement du signal à base de paramètres dépendant de la construction et procédé correspondant Withdrawn EP2018080A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US96134907P 2007-07-20 2007-07-20
DE102007033896A DE102007033896B4 (de) 2007-07-20 2007-07-20 Hörvorrichtung mit Signalverarbeitung auf der Basis konstruktionsbezogener Parameter und entsprechendes Verfahren

Publications (2)

Publication Number Publication Date
EP2018080A2 true EP2018080A2 (fr) 2009-01-21
EP2018080A3 EP2018080A3 (fr) 2012-08-29

Family

ID=39832647

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08104629A Withdrawn EP2018080A3 (fr) 2007-07-20 2008-07-03 Dispositif auditif doté d'un traitement du signal à base de paramètres dépendant de la construction et procédé correspondant

Country Status (4)

Country Link
US (1) US8275161B2 (fr)
EP (1) EP2018080A3 (fr)
AU (1) AU2008203211B8 (fr)
DE (1) DE102007033896B4 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8150542B2 (en) * 2006-06-14 2012-04-03 Phonak Ag Positioning and orienting a unit of a hearing device relative to individual's head
EP3105942B1 (fr) 2014-02-10 2018-07-25 Bose Corporation Systeme d'aide a la conversation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002028140A2 (fr) 2000-09-29 2002-04-04 Knowles Electronics, Llc Jeu de microphones a orientation directionnelle de second ordre
US6879697B2 (en) 2001-03-26 2005-04-12 Widex A/S Hearing aid with a face plate that is automatically manufactured to fit the hearing aid shell
US20060233384A1 (en) 2005-04-13 2006-10-19 Phonak Ag Method of manufacturing an individually shaped hearing device or hearing aid
WO2007052185A2 (fr) 2005-11-01 2007-05-10 Koninklijke Philips Electronics N.V. Systeme et procede de reproduction de son

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5463694A (en) 1993-11-01 1995-10-31 Motorola Gradient directional microphone system and method therefor
DK1174003T3 (da) 1999-04-28 2004-08-30 Gennum Corp Programmerbart multimode-, multimikrofonsystem
US7027607B2 (en) * 2000-09-22 2006-04-11 Gn Resound A/S Hearing aid with adaptive microphone matching
JP3955265B2 (ja) 2001-04-18 2007-08-08 ヴェーデクス・アクティーセルスカプ 指向性コントローラおよび補聴器を制御する方法
CA2538021C (fr) * 2003-09-19 2011-11-22 Widex A/S Procede de commande de la directionalite de la caracteristique de reception de son d'une aide auditive, et aide auditive dans laquelle est applique ledit procede
DK1695590T3 (da) * 2003-12-01 2014-06-02 Wolfson Dynamic Hearing Pty Ltd Fremgangsmåde og apparat til fremstilling af adaptive, retningsbestemte signaler
FR2872211B1 (fr) 2004-06-23 2006-09-29 Peugeot Citroen Automobiles Sa Systeme d'evaluation de l'etat de charge en suies de moyens de depollution
US7467022B2 (en) * 2006-04-06 2008-12-16 Siemens Aktiengesellschaft Method for fabricating a hearing aid shell and mold incorporating test fitting by the user

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002028140A2 (fr) 2000-09-29 2002-04-04 Knowles Electronics, Llc Jeu de microphones a orientation directionnelle de second ordre
US6879697B2 (en) 2001-03-26 2005-04-12 Widex A/S Hearing aid with a face plate that is automatically manufactured to fit the hearing aid shell
US20060233384A1 (en) 2005-04-13 2006-10-19 Phonak Ag Method of manufacturing an individually shaped hearing device or hearing aid
WO2007052185A2 (fr) 2005-11-01 2007-05-10 Koninklijke Philips Electronics N.V. Systeme et procede de reproduction de son

Also Published As

Publication number Publication date
US8275161B2 (en) 2012-09-25
AU2008203211A1 (en) 2009-02-05
EP2018080A3 (fr) 2012-08-29
US20090022345A1 (en) 2009-01-22
DE102007033896B4 (de) 2012-04-19
AU2008203211B8 (en) 2011-04-21
DE102007033896A1 (de) 2009-01-29
AU2008203211B2 (en) 2011-03-31

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