EP2227038A1 - Procédé de fonctionnement d'un dispositif auditif et dispositif ayant une soumission de contre-réaction - Google Patents

Procédé de fonctionnement d'un dispositif auditif et dispositif ayant une soumission de contre-réaction Download PDF

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Publication number
EP2227038A1
EP2227038A1 EP10152272A EP10152272A EP2227038A1 EP 2227038 A1 EP2227038 A1 EP 2227038A1 EP 10152272 A EP10152272 A EP 10152272A EP 10152272 A EP10152272 A EP 10152272A EP 2227038 A1 EP2227038 A1 EP 2227038A1
Authority
EP
European Patent Office
Prior art keywords
feedback
frequency
signal
unit
acceptance
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Withdrawn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
EP10152272A
Other languages
German (de)
English (en)
Inventor
Alexander Grafenberg
Johannes Lauer
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 EP2227038A1 publication Critical patent/EP2227038A1/fr
Withdrawn legal-status Critical Current

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    • 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
    • H04R25/45—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback
    • H04R25/453—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback electronically
    • 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
    • H04R25/30—Monitoring or testing of hearing aids, e.g. functioning, settings, battery power
    • H04R25/305—Self-monitoring or self-testing
    • 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
    • H04R2225/39—Aspects relating to automatic logging of sound environment parameters and the performance of the hearing aid during use, e.g. histogram logging, or of user selected programs or settings in the hearing aid, e.g. usage logging
    • 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
    • H04R2460/15—Determination of the acoustic seal of ear moulds or ear tips of hearing devices

Definitions

  • the invention relates to a specified in claim 1 method for operating a hearing with a feedback suppression and / or a feedback detection, a specified in claim 6 associated computer program product and a specified in claim 7 hearing with a feedback suppression unit and / or a feedback detection unit.
  • FIG. 1 schematically reproduced hearing aid 1.
  • the hearing aid can be reproduced as a digital system 7, which is located in an acoustic environment.
  • An incoming acoustic signal 9 is received by a microphone 2 of the hearing aid 1.
  • the recorded signal 9 is amplified, inter alia, in a signal processing unit 6 and emitted again via a receiver 3.
  • Acoustic coupling from the receiver 3 back to the microphone 2 takes place via a physical feedback path 4.
  • the recorded signal 9 thus consists of the sum of an incidental useful signal 8 and the signal via the feedback path 4.
  • feedback whistling occurs when both the Amplitude, as well as the phase condition are met.
  • sound artifacts already occur when the above conditions are only approximately fulfilled.
  • acoustic feedback is significantly affected by the accuracy of fit of an ear canal fitting.
  • sound waves can pass the earmold and reach a hearing aid microphone, creating unwanted feedback.
  • the shape of the ear canal such as size, curvature, texture, is subject to temporal changes, for example, in children through growth or in adults by changes in the connective tissue.
  • the custom-made earmolds no longer ensure a sufficient accuracy of fit after a certain wearing time and, as a result, more frequent acoustic feedback occurs.
  • the acoustic feedback is suppressed in modern hearing aids by the signal processing (feedback cancellation).
  • this electronic measure only intervenes when feedback already occurs.
  • feedback cancellation techniques have a physical limit.
  • the feedback cancellation method is very reliable.
  • a hearing aid wearer does not seek out a hearing aid acoustician until the hearing aid frequently or constantly returns. This behavior of the hearing aid is unsatisfactory especially for people in need of care and children who may be more difficult to communicate.
  • the stated object is achieved with the method for operating a hearing device of independent claim 1, the computer program product of independent claim 6 and the hearing device of independent claim 7.
  • the frequency threshold value can be selected to be smaller than a predefinable acceptance value, wherein the frequency threshold value is determined from an interpolation of the acceptance value.
  • the interpolation can be carried out on the basis of a frequency distribution of the feedback events as a function of time, the frequency distribution being extrapolated up to the acceptance value. This offers the advantage of a simple prediction of when the acceptance value is likely to be reached.
  • the signal can be emitted acoustically or optically. This ensures a simple and clear message to a user or caregiver of a user.
  • the invention also claims a computer program product with a computer program having software means for carrying out a method according to the invention when the computer program is executed in a control unit.
  • the invention also claims a hearing device with a feedback suppression unit that responds when an acoustic feedback occurs, and / or an acoustic feedback detection unit.
  • the hearing device comprises an event unit for determining feedback events in which the feedback suppression responds and / or in which a feedback above a predefinable feedback threshold value is detectable, a computing unit for determining the frequency of the feedback events within a predeterminable time interval and a signal unit for outputting a signal, if the determined frequency exceeds a predefinable frequency threshold.
  • the frequency threshold value may be smaller than a predefinable acceptance value, wherein the frequency threshold value can be determined from an interpolation of the acceptance value in the arithmetic unit.
  • the interpolation in the arithmetic unit based on a frequency distribution of Feedback events are performed as a function of time, the frequency distribution is extrapolated to the acceptance value.
  • an intervention time point at which the acceptance value is likely to be reached can be determined from the frequency curve.
  • the signal can be emitted acoustically or optically by the signal unit.
  • the hearing device may comprise a remote control, wherein the signal can be emitted via a remote control.
  • the hearing device may comprise an in-the-ear hearing device.
  • the method according to the invention can be illustrated with reference to a diagram of the frequency H of feedback events as a function of the time T according to FIG. 2 be explained.
  • Prerequisite is a hearing device with a feedback suppression or feedback detection.
  • a feedback event may be a response of the feedback suppression or a detection of a feedback above a predeterminable feedback threshold.
  • these Events are counted and their frequency HP determined in a predetermined time interval.
  • the time interval may be, for example, a calendar day or just an hour.
  • the determined frequencies HP are thus determined as a function of time, for example the frequency per day or the frequency averaged per day from the hourly values.
  • the frequencies HP are approximated by a frequency curve HK.
  • the curve HK can also be extrapolated beyond a current day A to which the last current frequency value HA is present.
  • the so-called acceptance value AW the hearing device couples back so often or exceeds the predefinable feedback threshold so often that it becomes unreasonable for a wearer of the hearing device.
  • the time AT at which the acceptance value AW is likely to be reached is determined. If the frequency HP now reaches a predefinable threshold value SW whose instant ST is a few days or weeks before the instant AT, a signal or a display of a residual time RT is output until the acceptance value AW is reached. Thus, the wearer of the hearing device or his caregiver knows that a specialist in the adaptation of the hearing device will soon have to be consulted.
  • FIG. 3 shows a hearing aid 1 portable in the ear with its essential components.
  • a microphone 2 with a sound inlet opening for receiving an acoustic signal converts the recorded acoustic signal into an electrical signal.
  • the electrical signal is fed to a signal processing unit 6 for further processing and frequency-dependent amplification.
  • the further processed and amplified signal is converted back by means of a receiver 3 from an electrical signal into an acoustic signal and via a sound channel into the auditory canal of a hearing aid wearer issued.
  • a battery 14 is used to power the electrical components of the hearing aid 1.
  • the hearing aid 1 is adaptable in its transmission characteristics to different listening situations (e.g., "quiet environment”, “conversation”, “disturbance environment conversation”, “in-car driving”, etc.).
  • the selection is made by setting certain parameter sets (hearing programs), which adjust the signal processing 6 to the respective listening situation. Between the individual hearing programs is switched by operation of a push-button 13.
  • the hearing aid 1 comprises as a further component a transmitting and receiving unit 15 with an antenna 16 for wireless data exchange with another hearing aid for binaural supply or with a remote control or with an audio transmission unit.
  • the hearing aid 1 in the signal processing unit 6 has a feedback suppression unit 20 and a feedback detection unit 21 for suppressing acoustic feedbacks. If the fit of the hearing aid 1 deteriorates over time, the frequency of the feedback increases.
  • an event unit 22 connected to the feedback suppression unit 20 and the feedback detection unit 21 the feedback events are determined at which the feedback suppression unit 20 responds and / or in which the feedback detection unit 21 detects a feedback above a predefinable feedback threshold value.
  • a calculation unit 23 connected to the event unit 22 determines the frequency of the feedback events within a predefinable time interval.
  • an acoustic signal is emitted via the receiver 3 by a signal unit 24 connected to the arithmetic unit 23.
  • the signal can also be output optically and / or, for example, at one Remote control of the hearing aid 1 or the hearing aid 1 itself are displayed.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Neurosurgery (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
EP10152272A 2009-03-06 2010-02-01 Procédé de fonctionnement d'un dispositif auditif et dispositif ayant une soumission de contre-réaction Withdrawn EP2227038A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009012162A DE102009012162A1 (de) 2009-03-06 2009-03-06 Verfahren zum Betrieb einer Hörvorrichtung und Hörvorrichtung mit einer Rückkopplungsunterdrückung

Publications (1)

Publication Number Publication Date
EP2227038A1 true EP2227038A1 (fr) 2010-09-08

Family

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EP10152272A Withdrawn EP2227038A1 (fr) 2009-03-06 2010-02-01 Procédé de fonctionnement d'un dispositif auditif et dispositif ayant une soumission de contre-réaction

Country Status (3)

Country Link
US (1) US20100226516A1 (fr)
EP (1) EP2227038A1 (fr)
DE (1) DE102009012162A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010049543A3 (fr) * 2010-02-19 2010-12-09 Phonak Ag Procédé pour le contrôle d’un ajustement d’une prothèse auditive et prothèse auditive
CN103517192A (zh) * 2012-06-21 2014-01-15 奥迪康有限公司 包括反馈报警的助听器

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2472907B1 (fr) 2010-12-29 2017-03-15 Oticon A/S Système d'écoute comportant un dispositif d'alerte et dispositif d'écoute
DK2613566T3 (en) * 2012-01-03 2016-10-17 Oticon As A listening device and method for monitoring the placement of an earplug for a listening device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1624719A2 (fr) * 2005-09-13 2006-02-08 Phonak Ag Procédé pour déterminer le seuil de couplage dans une prothèse auditive
US20060227987A1 (en) * 2005-04-08 2006-10-12 Phonak Ag Hearing device with anti-theft protection
WO2008000843A2 (fr) * 2007-09-20 2008-01-03 Phonak Ag Procédé de détermination d'un seuil de réaction dans un dispositif d'écoute et dispositif d'écoute
US20080107296A1 (en) * 2004-01-27 2008-05-08 Phonak Ag Method to log data in a hearing device as well as a hearing device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10244184B3 (de) * 2002-09-23 2004-04-15 Siemens Audiologische Technik Gmbh Feedbackkompensation für Hörgeräte mit Systemabstandsschätzung
US8280088B2 (en) * 2006-05-19 2012-10-02 Siemens Audiologische Technik Gmbh Hearing apparatus with feedback detection and corresponding method
DE102006023723A1 (de) * 2006-05-19 2007-11-22 Siemens Audiologische Technik Gmbh Hörvorrichtung mit Rückkopplungsdetektion und entsprechendes Verfahren

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080107296A1 (en) * 2004-01-27 2008-05-08 Phonak Ag Method to log data in a hearing device as well as a hearing device
US20060227987A1 (en) * 2005-04-08 2006-10-12 Phonak Ag Hearing device with anti-theft protection
EP1624719A2 (fr) * 2005-09-13 2006-02-08 Phonak Ag Procédé pour déterminer le seuil de couplage dans une prothèse auditive
WO2008000843A2 (fr) * 2007-09-20 2008-01-03 Phonak Ag Procédé de détermination d'un seuil de réaction dans un dispositif d'écoute et dispositif d'écoute

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GREENBERG JULIE E ET AL: "Evaluation of feedback-reduction algorithms for hearing aids", THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, AMERICAN INSTITUTE OF PHYSICS FOR THE ACOUSTICAL SOCIETY OF AMERICA, NEW YORK, NY, US LNKD- DOI:10.1121/1.1316095, vol. 108, no. 5, 1 November 2000 (2000-11-01), pages 2366 - 2376, XP012002015, ISSN: 0001-4966 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010049543A3 (fr) * 2010-02-19 2010-12-09 Phonak Ag Procédé pour le contrôle d’un ajustement d’une prothèse auditive et prothèse auditive
CN103517192A (zh) * 2012-06-21 2014-01-15 奥迪康有限公司 包括反馈报警的助听器
CN103517192B (zh) * 2012-06-21 2018-10-19 奥迪康有限公司 包括反馈报警的助听器

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US20100226516A1 (en) 2010-09-09
DE102009012162A1 (de) 2010-09-09

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