EP1992195A1 - Verfahren und system zur rauschunterdrückung in hörgeräten - Google Patents

Verfahren und system zur rauschunterdrückung in hörgeräten

Info

Publication number
EP1992195A1
EP1992195A1 EP07712378A EP07712378A EP1992195A1 EP 1992195 A1 EP1992195 A1 EP 1992195A1 EP 07712378 A EP07712378 A EP 07712378A EP 07712378 A EP07712378 A EP 07712378A EP 1992195 A1 EP1992195 A1 EP 1992195A1
Authority
EP
European Patent Office
Prior art keywords
hearing aid
gain
adjusting
speech intelligibility
direct transmission
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.)
Granted
Application number
EP07712378A
Other languages
English (en)
French (fr)
Other versions
EP1992195B1 (de
Inventor
Morten Agerbak Nordahn
Carsten Paludan-Muller
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.)
Widex AS
Original Assignee
Widex AS
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 Widex AS filed Critical Widex AS
Publication of EP1992195A1 publication Critical patent/EP1992195A1/de
Application granted granted Critical
Publication of EP1992195B1 publication Critical patent/EP1992195B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H04R25/45—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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/43—Signal processing in hearing aids to enhance the speech intelligibility
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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
    • H04R2460/11—Aspects relating to vents, e.g. shape, orientation, acoustic properties in ear tips of hearing devices to prevent occlusion
    • 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
    • H04R25/35—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using translation techniques
    • H04R25/356—Amplitude, e.g. amplitude shift or compression
    • 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 sound input to the hearing aid user is a combination of the sound amplified according to the hearing aid gain as well as the direct transmitted sound. As long as the amplified sound dominates the direct transmitted sound in all frequency bands the noise reduction techniques will provide good results. Noise reduction according to the state of the art to enhance SII is based on an assumption that the earplug provides a tight fit between the earplug and the ear canal. However a ventilation canal or a leakage path allows for the sound to be directly transmitted into the ear. Thus, at a certain threshold the sound input to the hearing aid user may be dominated by the direct transmitted sound, so that a decrease of the hearing aid gain will not affect the sound input to the user. If the direct transmitted sound is not taken into account the speech intelligibility may suffer as a consequence.
  • the invention provides a system of reducing noise in a hearing aid, a computer program and a computer program product as recited in claims 27, 28 and 29.
  • Fig. 5 shows diagrams illustrating the principle of optimizing the SII (Speech Intelligibility Index) taking into account the directly transmitted sound, according to the present invention.
  • the Figs. 4 and 5 show the principle in the combination of SII (Speech Intelligibility Index) - based noise reduction technique and the directly transmitted sound through the vent.
  • the Fig. 4 shows the directly transmitted sound in dB.
  • This gain function represents the sound pressure at the eardrum relative to the sound pressure at the entrance of the vent by a sound source external to the ear.
  • the direct transmission gain may be determined during the feedback test, as in the above-mentioned PCT/EP2005/055305.

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)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
EP07712378.4A 2006-03-03 2007-02-28 Vorrichtung und verfahren zur rauschminderung in einem hörhilfegerät Active EP1992195B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US77837606P 2006-03-03 2006-03-03
PCT/EP2007/051890 WO2007099115A1 (en) 2006-03-03 2007-02-28 Method and system of noise reduction in a hearing aid

Publications (2)

Publication Number Publication Date
EP1992195A1 true EP1992195A1 (de) 2008-11-19
EP1992195B1 EP1992195B1 (de) 2016-08-10

Family

ID=38179754

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07712378.4A Active EP1992195B1 (de) 2006-03-03 2007-02-28 Vorrichtung und verfahren zur rauschminderung in einem hörhilfegerät

Country Status (7)

Country Link
EP (1) EP1992195B1 (de)
JP (1) JP4870780B2 (de)
CN (1) CN101356854A (de)
AU (1) AU2007220497B2 (de)
CA (1) CA2643326C (de)
DK (1) DK1992195T3 (de)
WO (1) WO2007099115A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008008730A2 (en) * 2006-07-08 2008-01-17 Personics Holdings Inc. Personal audio assistant device and method
DK2629551T3 (en) * 2009-12-29 2015-03-02 Gn Resound As Binaural hearing aid system
CN102148033B (zh) * 2011-04-01 2013-11-27 华南理工大学 一种语言传输系统清晰度测试方法
CN106101969A (zh) * 2016-08-18 2016-11-09 孟玲 增进语音即时输出的助听器
AT520106B1 (de) * 2017-07-10 2019-07-15 Isuniye Llc Verfahren zum Modifizieren eines Eingangssignals
CN110351644A (zh) * 2018-04-08 2019-10-18 苏州至听听力科技有限公司 一种自适应声音处理方法及装置
CN110493695A (zh) * 2018-05-15 2019-11-22 群腾整合科技股份有限公司 一种音频补偿系统
DE102019213809B3 (de) * 2019-09-11 2020-11-26 Sivantos Pte. Ltd. Verfahren zum Betrieb eines Hörgeräts sowie Hörgerät

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05199590A (ja) * 1992-01-22 1993-08-06 Terumo Corp 補聴器
JP2904272B2 (ja) * 1996-12-10 1999-06-14 日本電気株式会社 ディジタル補聴器、及びその補聴処理方法
US6097823A (en) * 1996-12-17 2000-08-01 Texas Instruments Incorporated Digital hearing aid and method for feedback path modeling
JP3890767B2 (ja) * 1998-09-22 2007-03-07 ヤマハ株式会社 補聴器等の耳装着用外来音処理装置
EP1129601B1 (de) * 1998-11-09 2007-05-02 Widex A/S Verfahren zum in-situ messen und korrigieren oder anpassen eines ausgangssignals eines hörgerätes mit hilfe eines modelprozessors und hörgerät zur durchführung des verfahrens
JP4269516B2 (ja) * 2000-12-28 2009-05-27 ヤマハ株式会社 耳装着用外来音処理装置のリークテスタ
JP4010968B2 (ja) * 2003-03-26 2007-11-21 リオン株式会社 ハウリング抑制機能を備えた補聴器
DE10332119B3 (de) * 2003-07-16 2004-12-09 Siemens Audiologische Technik Gmbh Aktive Störgeräuschunterdrückung bei einem im Ohr tragbaren Hörhilfegerät oder einem Hörhilfegerät mit im Ohr tragbarer Otoplastik
DK1695591T3 (en) * 2003-11-24 2016-08-22 Widex As Hearing aid and a method for noise reduction
CA2625101C (en) * 2005-10-17 2012-02-21 Widex A/S Method and system for fitting a hearing aid

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007099115A1 *

Also Published As

Publication number Publication date
JP2009519650A (ja) 2009-05-14
JP4870780B2 (ja) 2012-02-08
AU2007220497B2 (en) 2009-11-26
CA2643326A1 (en) 2007-09-07
CA2643326C (en) 2013-10-01
EP1992195B1 (de) 2016-08-10
WO2007099115A1 (en) 2007-09-07
AU2007220497A1 (en) 2007-09-07
DK1992195T3 (en) 2016-09-12
CN101356854A (zh) 2009-01-28

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