EP1517583B1 - Appareil auditif pour déterminer le volume du conduit auditif et méthode d'adaptation associée - Google Patents

Appareil auditif pour déterminer le volume du conduit auditif et méthode d'adaptation associée Download PDF

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Publication number
EP1517583B1
EP1517583B1 EP04021501.4A EP04021501A EP1517583B1 EP 1517583 B1 EP1517583 B1 EP 1517583B1 EP 04021501 A EP04021501 A EP 04021501A EP 1517583 B1 EP1517583 B1 EP 1517583B1
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EP
European Patent Office
Prior art keywords
hearing aid
impedance
electrical input
auditory canal
input impedance
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.)
Not-in-force
Application number
EP04021501.4A
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German (de)
English (en)
Other versions
EP1517583A2 (fr
EP1517583A3 (fr
Inventor
Torsten Dr. Niederdränk
Christian Dr. Weistenhöfer
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
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Publication date
Application filed by Siemens Audioligische Technik GmbH filed Critical Siemens Audioligische Technik GmbH
Publication of EP1517583A2 publication Critical patent/EP1517583A2/fr
Publication of EP1517583A3 publication Critical patent/EP1517583A3/fr
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Publication of EP1517583B1 publication Critical patent/EP1517583B1/fr
Not-in-force 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; 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

Definitions

  • the present invention relates to a hearing aid with a signal processing device for processing an input signal to an output signal and a sound transducer device for converting the output signal of the signal processing device into a sound signal. Moreover, the present invention relates to a method for adapting a hearing device.
  • a standard coupler is a unit that simulates the ear canal, the eardrum and the tympanic duct of a human ear and is used for setting purposes for hearing aids.
  • the handset has a dual function and also acts as a receiver of an acoustic input signal, which represents the sound field in the auditory canal of the hearing aid wearer, and converts it into an electrical input signal.
  • the electrical input signal is used to adapt the hearing aid to a hearing aid wearer. The adaptation thus takes place here by measuring the voltage which is caused by the acoustic input signal.
  • the hearing system is provided for the objective determination of the coupling quality of the output transducer with an impedance measuring arrangement for determining the mechanical impedance of the coupled in the implanted state to the output transducer biological load structure.
  • the impedance measuring arrangement has an arrangement for measuring the electrical input impedance of the electromechanical output transducer (s) coupled to the biological load structure.
  • an implantable hearing system with means for measuring the quality of the coupling is known.
  • the implantable hearing system is provided with an impedance measuring arrangement for determining the mechanical impedance of the biological load structure coupled to the output transducer in the implanted state.
  • the coupling before completion of the operation be assessed.
  • the coupling quality of the transducer can be observed objectively for a long time.
  • the object of the present invention is therefore to show a hearing aid that can be adapted with the least possible effort exactly to the ear canal of a hearing aid wearer.
  • a corresponding method for adaptation should be proposed.
  • this object is achieved by a hearing aid according to claim 1.
  • the invention provides a method for adapting a hearing device by providing a hearing device which has a sound transducer device, placing the hearing device in an auditory canal, measuring an electrical input impedance of the sound transducer device as a measure of one acoustic impedance parameter of the ear canal, determining a mechanical resonance from the waveform of the electrical input impedance and automatically correcting the standard frequency response of the hearing aid based on a shift of the mechanical resonance to a standard resonance.
  • the invention is based on the idea that the adaptation of the individually resulting sound pressure in the auditory canal of the patient must be correctly determined.
  • the sound pressure can be determined indirectly from the ear canal impedance, namely the impedance against which the output of the hearing aid works.
  • a hearing aid model is used, as it is usually included in the fitting software.
  • the acoustic Impedance of the ear canal before the Schallwandler in the signal processing device from the electrical input impedance, the acoustic Impedance of the ear canal before the Schallwandler boots be determined. This makes it possible to dispense with a separate acoustic transducer for determining the acoustic impedance.
  • a mechanical resonance is determined from the curve of the electrical input impedance. In the signal processing device can then be used a shift of the mechanical resonance to an automatic correction of the standard frequency response of the hearing aid.
  • the fact is utilized that in an electromagnetic transducer whose mechanical elements and the oscillating masses coupled thereto influence the electrical impedance, ie the ratio of the voltage U to the current I.
  • a corresponding simplified equivalent circuit of the electromagnetic handset is in FIG. 1 shown.
  • the electrical impedance U / I of the receiver results from a series connection of the coil inductance Le and the DC resistance Re with a parallel connection of an inductance M 2 nS, a capacitance m / M 2 S and a resistance M 2 S / w.
  • M is the electromagnetic transducer constant
  • S is the membrane surface
  • n is the compliance diaphragm suspension and load volume
  • m diaphragm mass and w losses All elements are related to electrical quantities.
  • the output side of in FIG. 1 quadrupole is determined by the quantities p / M corresponding to a current and Mv corresponding to a voltage. Where p is the sound pressure and v the sound velocity.
  • the frequency of the mechanical resonance is essentially determined by the mass of the moving listener parts, z. B. membrane, the membrane suspension and the load volume, in particular the auditory canal volume determined. If the frequency characteristic of the electrical input impedance of the receiver located on the standard coupler is known, individual deviations from the standard volume can be estimated on the basis of a shift in the mechanical resonance frequency. If the residual volume of the ear canal is smaller than the standard volume, the resonance frequency shifts upward. Otherwise, it shifts down. To correct the standard frequency response, the deviation values are fed to the fitting software.
  • the main advantage of the method according to the invention is the ease of handling. There is no need for an additional measuring device to determine the acoustic conditions in the auditory canal. Rather, the sound pressure in the auditory canal can be determined indirectly by determining the electrical input impedance of the listener with the aid of the signal processing chip of the hearing device. In this case, the electrical impedance measurement in normal operation, d. H. in normal environment with natural sound sources, when the output of the signal processing chip has sufficient energy in the frequency ranges of interest. However, if this is not the case, for example, if the natural sound source is too quiet or too heavily obscured, a fitting measurement with artificial sounding of the hearing aid is necessary.

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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)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Claims (4)

  1. Prothèse auditive comprenant
    - un dispositif de traitement du signal pour la transformation d'un signal d'entrée en un signal de sortie et
    - un dispositif transducteur de son pour transformer le signal de sortie du dispositif de traitement du signal en un signal acoustique,
    caractérisé en ce que
    - par le dispositif de traitement du signal, l'impédance électrique d'entrée du dispositif transducteur de son est définie comme une mesure d'un paramètre acoustique d'impédance, à partir du tracé de la courbe de l'impédance électrique d'entrée, une résonance mécanique est déterminée et un décalage de la résistance mécanique est utilisé par le dispositif de traitement du signal pour une correction automatique de la réponse fréquentielle de norme de la prothèse auditive.
  2. Prothèse auditive suivant la revendication 1, dans laquelle, dans le dispositif de traitement du signal, l'impédance acoustique d'un conduit auditif, avant le dispositif transducteur de son, peut être déterminée à partir de l'impédance électrique d'entrée.
  3. Procédé d'adaptation d'une prothèse auditive par
    - mise à disposition d'une prothèse auditive qui a un dispositif transducteur de son et
    - mise en place de la prothèse auditive dans un conduit auditif,
    caractérisé par
    - la mesure d'une impédance électrique d'entrée du dispositif transducteur de son comme mesure d'un paramètre acoustique d'impédance du conduit auditif,
    - la détermination d'une résonance mécanique à partir du tracé de la courbe de l'impédance électrique d'entrée et
    - la correction automatique de la réponse fréquentielle de norme de la prothèse auditive, au moyen d'un décalage de la résonance magnétique, par rapport à une résistance de norme.
  4. Procédé suivant la revendication 3, dans lequel on détermine, à partir de l'impédance électrique d'entrée, l'impédance acoustique d'un conduit auditif avant le dispositif transducteur de son.
EP04021501.4A 2003-09-18 2004-09-09 Appareil auditif pour déterminer le volume du conduit auditif et méthode d'adaptation associée Not-in-force EP1517583B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10343291 2003-09-18
DE10343291A DE10343291B3 (de) 2003-09-18 2003-09-18 Hörgerät und Verfahren zur Anpassung eines Hörgeräts

Publications (3)

Publication Number Publication Date
EP1517583A2 EP1517583A2 (fr) 2005-03-23
EP1517583A3 EP1517583A3 (fr) 2009-12-23
EP1517583B1 true EP1517583B1 (fr) 2013-12-04

Family

ID=34177822

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04021501.4A Not-in-force EP1517583B1 (fr) 2003-09-18 2004-09-09 Appareil auditif pour déterminer le volume du conduit auditif et méthode d'adaptation associée

Country Status (4)

Country Link
US (1) US7302069B2 (fr)
EP (1) EP1517583B1 (fr)
DE (1) DE10343291B3 (fr)
DK (1) DK1517583T3 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030163021A1 (en) * 2002-02-26 2003-08-28 Miller Douglas Alan Method and system for external assessment of hearing aids that include implanted actuators
US7940945B2 (en) * 2006-07-06 2011-05-10 Phonak Ag Method for operating a wireless audio signal receiver unit and system for providing hearing assistance to a user
DK2177052T3 (da) 2007-07-10 2012-08-13 Widex As Fremgangsmåde til idenfikation af en højttaler i et høreapparat
EP2073570B1 (fr) * 2007-12-18 2013-08-21 Oticon A/S Prothèse auditive adaptative et procédé pour la fourniture d'une telle prothèse
EP2056624A1 (fr) 2008-04-10 2009-05-06 Oticon A/S Procédé de contrôle d'un dispositif auditif et dispositif auditif
DE102010041337B4 (de) 2010-09-24 2013-07-18 Siemens Medical Instruments Pte. Ltd. Verfahren zum Anpassen eines Hörgeräts mit Insitu-Audiometrie und Hörgerät
EP2629847B1 (fr) * 2010-10-19 2017-11-22 Cochlear Limited Interface relais de connexion d'un dispositif médical implanté à un dispositif électronique externe
US20120281845A1 (en) * 2011-05-05 2012-11-08 Sony Ericsson Mobile Communications Ab Method for determining an impedance of an electroacoustic transducer and for operating an audio playback device
WO2012165976A1 (fr) * 2011-06-01 2012-12-06 Phitek Systems Limited Dispositif intra-auriculaire incorporant une réduction active du bruit
US9264811B1 (en) 2014-04-16 2016-02-16 Audyssey Laboratories EQ correction for source device impedance and output device impedance interactions
US9993644B2 (en) * 2014-10-06 2018-06-12 Advanced Bionics Ag Systems and methods for fitting an electro-acoustic stimulation system to a patient
JP6322339B2 (ja) * 2014-10-15 2018-05-09 ヴェーデクス・アクティーセルスカプ 補聴器システムの動作方法および補聴器システム
JP6343397B2 (ja) * 2014-10-15 2018-06-13 ヴェーデクス・アクティーセルスカプ 補聴器システムの動作方法および補聴器システム
EP3062532B1 (fr) * 2015-02-27 2018-08-01 Oticon A/s Procédé d'adaptation d'un dispositif auditif à l'oreille d'un utilisateur et dispositif auditif
US10348891B2 (en) 2015-09-06 2019-07-09 Deborah M. Manchester System for real time, remote access to and adjustment of patient hearing aid with patient in normal life environment

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4128172C2 (de) * 1991-08-24 2000-07-13 Ascom Audiosys Ag Flamatt Digitales Hörgerät
US6269318B1 (en) 1997-04-30 2001-07-31 Earl R. Geddes Method for determining transducer linear operational parameters
ATE276634T1 (de) * 1998-11-09 2004-10-15 Widex As Verfahren zum in-situ korrigieren oder anpassen eines signalverarbeitungsverfahrens in einem hörgerät mit hilfe eines referenzsignalprozessors
DE10041726C1 (de) 2000-08-25 2002-05-23 Implex Ag Hearing Technology I Implantierbares Hörsystem mit Mitteln zur Messung der Ankopplungsqualität
DE10104711A1 (de) * 2001-02-02 2002-04-25 Siemens Audiologische Technik Verfahren zum Betrieb eines Hörhilfegerätes sowie Hörhilfegerät

Also Published As

Publication number Publication date
US7302069B2 (en) 2007-11-27
DE10343291B3 (de) 2005-04-21
US20050105741A1 (en) 2005-05-19
EP1517583A2 (fr) 2005-03-23
EP1517583A3 (fr) 2009-12-23
DK1517583T3 (en) 2014-03-10

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