EP2034769A2 - Transformation de fréquence par des processus non linéaires dans la cochlée - Google Patents

Transformation de fréquence par des processus non linéaires dans la cochlée Download PDF

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Publication number
EP2034769A2
EP2034769A2 EP08105071A EP08105071A EP2034769A2 EP 2034769 A2 EP2034769 A2 EP 2034769A2 EP 08105071 A EP08105071 A EP 08105071A EP 08105071 A EP08105071 A EP 08105071A EP 2034769 A2 EP2034769 A2 EP 2034769A2
Authority
EP
European Patent Office
Prior art keywords
hearing aid
hearing
tone
frequency
tone generator
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Withdrawn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
EP08105071A
Other languages
German (de)
English (en)
Other versions
EP2034769A3 (fr
Inventor
Matthias Dr Latzel
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
Application filed by Siemens Audioligische Technik GmbH filed Critical Siemens Audioligische Technik GmbH
Publication of EP2034769A2 publication Critical patent/EP2034769A2/fr
Publication of EP2034769A3 publication Critical patent/EP2034769A3/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Withdrawn legal-status Critical Current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; 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
    • H04R25/353—Frequency, e.g. frequency shift or compression

Definitions

  • the present invention relates to a hearing aid and an associated method for operating a hearing device.
  • Hearing loss or hearing loss may be due to different causes and accordingly requires a hearing aid, which is adapted or adapted to the particular cause of hearing loss or hearing loss.
  • a common problem that afflicts many people with hearing loss is high-frequency loss. This high tone loss is physiological.
  • the so-called hair cells convert mechanical vibrations (sound) into electrical energy, which can then be passed on as a nerve impulse.
  • this process is disturbed, due to the fact that in the areas in which higher frequencies are converted, only a few or no more hair cells are left. This sometimes leads to so-called dead zones, ie frequency ranges in which no mechanical energy can be transformed into electrical energy.
  • the present invention is based on that no signal processing is used to perform the transformation, but that this transformation takes place by physiological processes in the inner ear itself.
  • the object of the invention is achieved by a hearing aid according to claim 1 and a method for operating a hearing aid according to claim 6. Further developments of the present invention are described in the subclaims.
  • the hearing aid according to the invention has an electro-acoustic output transducer, and is characterized in that the hearing aid has a tone generator for generating a continuous tone with a constant frequency.
  • This tone generator can output the continuous tone via the electro-acoustic output transducer, eg a micro-speaker.
  • the tone generator preferably comprises a switching element which generates electrical voltages with a characteristic time profile, whereby a continuous tone can be generated. This can be a sine wave generator, but it can also be generated voltages with other time profile, such as sawtooth, etc.
  • high frequency frequencies can be transformed into audible ranges in the inner ear via nonlinear transformation processes.
  • the hearing aid preferably comprises an electroacoustic input transducer, e.g. a microphone, and an amplifier device, so that also recorded sound signals can be amplified.
  • an electroacoustic input transducer e.g. a microphone
  • an amplifier device so that also recorded sound signals can be amplified.
  • the tone generator is selectively activatable, so that the hearing aid wearer can use the tone generator only in certain listening situations, e.g. in talks.
  • the tone generator may be e.g. be activated via a switching element on the hearing aid, or preferably via a remote control, which can carry the hearing aid with it to selectively activate the continuous tone generator.
  • the method according to the invention for operating a hearing device is characterized in that at least in phases a continuous tone with a constant frequency is generated and conducted into the inner ear of the wearer.
  • outside scarf signals may preferably also be amplified during operation.
  • the continuous tone with a constant frequency is preferably in a range of 2 - 10 kHz, 2 - 6 kHz, 2 - 4 kHz, 4 - 10 kHz or 4 - 6 kHz. According to one embodiment of the invention, several continuous tones with different frequencies can be generated. Thus, an adaptation to the individual needs of the hearing aid wearer is made possible.
  • This function can be used for a frequency transformation in which a high tone is offered, which can not be perceived by the hearing impaired person himself, since this falls within a frequency range in which the hearing impairment is very pronounced.
  • this additional high tone together with the input signal (the sound coming from outside or possibly the sound amplified by the hearing aid) through the use of the non-linear processes in the inner ear corresponding difference tones, so that the input signal is transformed into a low frequency range , in which there are still inner hair cells that can pass on the information to the higher nerves.
  • the outstanding feature of this distortion is that its volume is only 20 to 30 dB below the volume of the main frequencies.
  • the cubic distortion produces a series of simple tones in the low frequency range. Is e.g.
  • a tone generator may be provided in the hearing aid according to the invention, which can simultaneously give up several continuous tones with a constant sequence, in order to expand the spectrum of difference tones accordingly.
  • the described solution is characterized on the one hand by the fact that it works much simpler than conventional methods, since only a sound must be generated, which generates the difference tones by the physiology of the inner ear.
  • the device can be adapted to the hearing loss of the hearing impaired, and the input signal can be selectively shifted into the frequency ranges in which still functioning hair cells are present.
  • the tone generator of the hearing device according to the invention is designed such that the frequency of the continuous tone to be generated can be adjusted. In this way, e.g. As the high-treble loss progresses, the hearing aid is continuously adjusted to the hearing aid wearer.
  • the hearing aid Since the difference signal generated in the volume is slightly below the input signal, it is preferred that the hearing aid also has an amplifier device to amplify sound signals coming from the outside, so that a correspondingly adjusted stronger difference signal can be generated in the inner ear.
  • FIG. 1 is a profile of a high-tone loss is shown, in which the person concerned in a range from 2 kHz upwards can no longer perceive sound signals (so-called dead zone). For example, signals from the hatched area of 2 to 3 kHz can no longer be perceived.

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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)
  • Circuit For Audible Band Transducer (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
EP08105071.8A 2007-09-05 2008-08-19 Transformation de fréquence par des processus non linéaires dans la cochlée Withdrawn EP2034769A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007042106A DE102007042106A1 (de) 2007-09-05 2007-09-05 Frequenztransformation durch nichtlineare Prozesse in der Cochlea

Publications (2)

Publication Number Publication Date
EP2034769A2 true EP2034769A2 (fr) 2009-03-11
EP2034769A3 EP2034769A3 (fr) 2013-04-17

Family

ID=40090346

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08105071.8A Withdrawn EP2034769A3 (fr) 2007-09-05 2008-08-19 Transformation de fréquence par des processus non linéaires dans la cochlée

Country Status (3)

Country Link
US (1) US20090060239A1 (fr)
EP (1) EP2034769A3 (fr)
DE (1) DE102007042106A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012041372A1 (fr) * 2010-09-29 2012-04-05 Siemens Medical Instruments Pte. Ltd. Procédé de compression de fréquence, dispositif d'adaptation et prothèse auditive

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5167236A (en) * 1988-12-22 1992-12-01 Franz Junker Tinnitus-masker
EP0820211A1 (fr) * 1996-07-09 1998-01-21 Siemens Audiologische Technik GmbH Prothèse auditive programmable

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1340105A (en) * 1971-06-08 1973-12-12 Nat Res Dev Aids for deaf persons
US3781491A (en) * 1971-06-23 1973-12-25 E Biondi Method and apparatus for making the human voice audible and comprehensible to severely deaf persons
US4222393A (en) * 1978-07-28 1980-09-16 American Tinnitus Association Tinnitus masker
DE3207412A1 (de) * 1982-03-02 1983-09-08 Robert Bosch Gmbh, 7000 Stuttgart Hoergeraet mit einer batteriegespeisten verstaerkerschaltung und mit mitteln zur lautstaerkeeinstellung
US5267571A (en) * 1992-04-08 1993-12-07 Sensimetrics Corporation Method for testing adequacy of human hearing
US5889870A (en) * 1996-07-17 1999-03-30 American Technology Corporation Acoustic heterodyne device and method
DE19859171C2 (de) * 1998-12-21 2000-11-09 Implex Hear Tech Ag Implantierbares Hörgerät mit Tinnitusmaskierer oder Noiser
US6631196B1 (en) * 2000-04-07 2003-10-07 Gn Resound North America Corporation Method and device for using an ultrasonic carrier to provide wide audio bandwidth transduction
DE10128642A1 (de) * 2000-06-16 2002-01-03 Gerd Tymnik Verfahren und Anordnung zur akustischen Tinnitusunterdrückung
US6631197B1 (en) * 2000-07-24 2003-10-07 Gn Resound North America Corporation Wide audio bandwidth transduction method and device
US6816599B2 (en) * 2000-11-14 2004-11-09 Topholm & Westermann Aps Ear level device for synthesizing music
US20040234089A1 (en) * 2003-05-20 2004-11-25 Neat Ideas N.V. Hearing aid
US7529379B2 (en) * 2005-01-04 2009-05-05 Motorola, Inc. System and method for determining an in-ear acoustic response for confirming the identity of a user
JP2009514313A (ja) * 2005-11-01 2009-04-02 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 耳音響放射を用いて補聴器装置を調節するための方法、並びに対応する補聴器システム及び補聴器装置
US8306248B2 (en) * 2005-11-14 2012-11-06 Digiovanni Jeffrey J Apparatus, systems and methods for relieving tinnitus, hyperacusis and/or hearing loss
DE102006016440A1 (de) * 2006-04-07 2007-10-11 Siemens Audiologische Technik Gmbh Hörgerät

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5167236A (en) * 1988-12-22 1992-12-01 Franz Junker Tinnitus-masker
EP0820211A1 (fr) * 1996-07-09 1998-01-21 Siemens Audiologische Technik GmbH Prothèse auditive programmable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012041372A1 (fr) * 2010-09-29 2012-04-05 Siemens Medical Instruments Pte. Ltd. Procédé de compression de fréquence, dispositif d'adaptation et prothèse auditive

Also Published As

Publication number Publication date
US20090060239A1 (en) 2009-03-05
EP2034769A3 (fr) 2013-04-17
DE102007042106A1 (de) 2009-03-26

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