EP1720376B1 - Système de prothèse auditive avec génération de signal monophonique et procédé correspondant - Google Patents

Système de prothèse auditive avec génération de signal monophonique et procédé correspondant Download PDF

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Publication number
EP1720376B1
EP1720376B1 EP06113264A EP06113264A EP1720376B1 EP 1720376 B1 EP1720376 B1 EP 1720376B1 EP 06113264 A EP06113264 A EP 06113264A EP 06113264 A EP06113264 A EP 06113264A EP 1720376 B1 EP1720376 B1 EP 1720376B1
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EP
European Patent Office
Prior art keywords
signal
hearing device
hearing
input signals
mono
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Active
Application number
EP06113264A
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German (de)
English (en)
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EP1720376A3 (fr
EP1720376A2 (fr
Inventor
Markus Laich
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Sivantos GmbH
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Siemens Audioligische Technik GmbH
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Publication of EP1720376A2 publication Critical patent/EP1720376A2/fr
Publication of EP1720376A3 publication Critical patent/EP1720376A3/fr
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    • 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
    • H04R25/55—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired
    • H04R25/552—Binaural

Definitions

  • the present invention relates to a hearing aid system with a left hearing aid for supplying the left ear of a hearing aid wearer and a right hearing aid for the supply of the right ear of a hearing aid wearer. Moreover, the present invention relates to a corresponding method for the binaural supply of a hearing aid wearer.
  • the problem is compounded with one-sided sound sources such as when telephoning. If the supply of the telephone ear is not sufficient, the speech perception is all the more reduced, since the other ear can make no contribution here.
  • Each auditory element has a microphone.
  • the output of the microphone is connected to the input of an AD converter in the hearing element and via a communication connection with the output of an AD converter in the hearing element.
  • the output of the microphone in the second auditory element is also connected to the inputs of both AD converters.
  • a mono or stereo signal is generated. Only when stereo signal processing has been requested, the signals of both microphones are processed in both digital processors. When mono signal processing has been requested, only the output of one microphone is processed in one digital processor and only the output of the second microphone in the other digital processor.
  • EP 1 365 628 A2 a hearing aid system comprising a first and a second hearing aid, which can be used in accordance with the supply of the left and right ear of a hearing aid wearer.
  • Each hearing aid has a microphone system and a loudspeaker.
  • the hearing aids each comprise a receiving unit which is in communication with both the two microphone systems and the two listeners.
  • the input signal of each of the hearing aids to the respective other of the hearing aids is transferable.
  • the object of the present invention is to improve the perception and in particular the speech perception in one-sided sound sources for hearing-impaired persons.
  • this object is achieved by a hearing aid system with a left hearing device for supplying the left ear of a hearing aid wearer and a right hearing aid for the right ear of the hearing aid wearer, the two hearing aids each having a transmission device with which the input signal of each hearing aid to the respective another of the hearing aids can be transmitted in particular wirelessly, and the two hearing aids each have a signal processing device with which a mono signal can be generated in each case from the two input signals in both hearing aids.
  • a comparison of the input signals can be carried out and the mono signal can be generated in each case exclusively from spectral components of the input signals which have the higher level in the respective frequency range.
  • the hearing aid wearer can always perceive an optimized signal on both sides.
  • the invention provides a method for binaurally supplying a hearing aid wearer by recording a left input signal by a hearing aid on the left ear of a hearing aid wearer and recording a right input signal by a hearing aid on the right ear of the hearing aid wearer and transmitting the respective input signal to the other hearing aid in particular, and Generating a mono signal from both input signals for each ear.
  • a comparison of the input signals is carried out in each of the two signal processing means and the mono signal is generated in each case exclusively from spectral components of the input signals which have the higher level in the respective frequency range.
  • the hearing aid wearer can always perceive an optimized signal on both sides.
  • the mono signal can be generated with the aid of averaging of the two input signals.
  • the input level of both input signals can be averaged and used for the further signal processing of the two hearing aids as a common input signal.
  • the input signal which is received at the associated hearing device is weighted more strongly for the generation of the mono signal than the input signal from the other hearing device. In this way, a certain side selectivity can be achieved, which can be a compromise between stereo and mono reception can be achieved.
  • the two input signals for the generation of the mono signal in the ratio 2: 1 weighted are weighted.
  • the received signals i. H. transmit the input signals from both hearing aids of a hearing aid system with a wireless audio transmission system to each other hearing aid.
  • the transmission can also be made by wire.
  • any wireless standards or non-standard systems can be used.
  • the transmission between the hearing aids via an additional controller can be done.
  • the left ear input signal EL and the right ear input signal ER are plotted versus frequency at their respective levels. From the two input signals EL and ER, a mono signal is now generated in each hearing aid. For this purpose, an average signal DM is formed from both input signals EL and ER. This average signal DM is used as an input signal for the further signal processing. Thus, the same mono signal can be presented on both ears.
  • FIG. 1 represented signals can also represent output signals of the respective signal processing of the corresponding hearing aid.
  • a so-called partial mono signal is generated from the input signals EL and ER instead of an average mono signal.
  • the input signals EL and ER received by both hearing aids are transmitted with wireless audio transmission to the respective other hearing device.
  • the directly received input signal is then weighted more heavily than the input signal received by the other hearing aid.
  • the signal spectra of the input signals EL and ER for the left and right ear and the partial mono signal TM generated therefrom are reproduced.
  • the two input signals for the generation of the sub-mono signal are weighted in a ratio of 2: 1, with the input signal EL of the left ear receiving the higher weight, since the illustrated partial mono signal TM was generated for the left ear.
  • the sub-mono signal TM is closer to the input signal EL for the left ear.
  • the partial mono signal for the right ear which is generated in the right hearing aid, in FIG. 2 not shown.
  • This partial mono signal for the right ear is closer to the input signal ER for the right ear due to the weight ratio of 2: 1.
  • the weighting ratio 1: 1 corresponds to the first embodiment according to FIG. 1 ,
  • a so-called maximum mono signal is generated.
  • the signals received from both hearing aids are wirelessly transmitted to each other's hearing aid.
  • the stronger signal in the respective spectral part, d. H. the one with the higher level is used for this spectral part to generate a mono signal.
  • FIG. 3 serves to explain the generation of the maximum mono signal MM.
  • the input signal ER at the right ear is greater than the input signal EL at the left ear. Consequently, the input signal ER in this frequency section is used for the mono signal MM.
  • the left input signal EL greater than the right input signal ER, so that here the former is used for the maximum mono signal MM.
  • the right input signal ER is again larger than the left input signal EL, so that here the spectral component of the right input signal ER is used for the generation of the mono signal MM.
  • a variant of the embodiments shown above is that a mono signal is generated only in the range of the speech frequencies, while the remaining frequencies are filtered out or a stereo reproduction is made possible there. This also promotes the improved perception of language.
  • a hearing aid is selected whose input signals are transmitted to both devices. This would correspond to the case where the input signal of the non-selected hearing aid is weighted to zero. As a result, for example, a suppression of the sound is possible, which is received at a non-calling ear.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Stereo-Broadcasting Methods (AREA)

Claims (8)

  1. Système de prothèse auditive comprenant :
    - une prothèse auditive gauche pour alimenter l'oreille gauche d'un porteur de prothèse auditive,
    - une prothèse auditive droite pour alimenter l'oreille droite du porteur de prothèse auditive,
    dans lequel
    - les deux prothèses auditives ont respectivement un dispositif de transmission, par lesquels le signal ( EL, ER ) d'entrée de chacune des prothèses auditives peut être transmis à l'autre des prothèses auditives, et
    - les deux prothèses auditives ont respectivement un dispositif de traitement du signal, par lesquels un mono-signal ( DM, TM, MM ) peut être produit dans les deux prothèses auditives à partir des deux signaux ( EL, ER ) d'entrée,
    caractérisé en ce que
    - une comparaison des signaux ( EL, ER ) d'entrée peut être effectuée dans chacun des deux dispositifs de traitement du signal et le mono-signal ( MM ) peut être produit à partir des composantes spectrales ayant respectivement des niveaux assez élevés des signaux d'entrée.
  2. Système de prothèse auditive suivant la revendication 1, dans lequel dans les dispositifs respectifs du traitement du signal le mono-signal ( DM ) peut être produit à l'aide d'une formation de la moyenne des deux signaux ( EL, ER ) d'entrée.
  3. Système de prothèse auditive suivant la revendication 1 ou 2, dans lequel dans chaque dispositif du traitement du signal, le signal ( EL, ER ) d'entrée, qui est reçu à la prothèse auditive associée, peut être pondéré d'une manière plus forte pour la production du mono-signal ( TM ) que le signal d'entrée de l'autre prothèse auditive.
  4. Système de prothèse auditive suivant la revendication 3, dans lequel les deux signaux ( EL, ER ) d'entrée sont pondérés dans le rapport 2:1 pour la production du mono-signal ( TM ).
  5. Système de prothèse auditive suivant l'une des revendications précédentes, dans lequel les dispositifs de transmission des deux prothèses auditives sont conçus pour la transmission sans fil des signaux d'entrée.
  6. Procédé d'alimentation binaurale d'un porteur de prothèse auditive par
    - réception d'un signal ( EL ) d'entrée gauche par une prothèse auditive à l'oreille gauche d'un porteur de prothèse auditive, et
    - réception d'un signal ( ER ) d'entrée droit par une prothèse auditive à l'oreille droite du porteur de prothèse auditive,
    - transmission du signal ( EL, ER ) d'entrée respective à l'autre prothèse auditive, et
    - production respectivement d'un mono-signal ( DM, TM, MM ) à partir des deux signaux ( EL, ER ) d'entrée pour chaque oreille,
    caractérisé en ce que
    - on compare les deux signaux ( EL, ER ) d'entrée et, pour la production du mono-signal ( MM ), on utilise exclusivement des composantes spectrales des signaux d'entrée ayant les niveaux assez élevés dans le domaine de fréquence respectif.
  7. Procédé suivant la revendication 6, dans lequel on pondère plus fortement pour la production du mono-signal ( TM ) le signal d'entrée reçu directement à la prothèse auditive que le signal d'entrée de l'autre prothèse auditive.
  8. Procédé suivant la revendication 6 ou 7, dans lequel on effectue sans fil la transmission du signal d'entrée respectif.
EP06113264A 2005-05-02 2006-04-28 Système de prothèse auditive avec génération de signal monophonique et procédé correspondant Active EP1720376B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005020316A DE102005020316B3 (de) 2005-05-02 2005-05-02 Hörgerätsystem mit Monosignalerzeugung und entsprechendes Verfahren

Publications (3)

Publication Number Publication Date
EP1720376A2 EP1720376A2 (fr) 2006-11-08
EP1720376A3 EP1720376A3 (fr) 2007-07-25
EP1720376B1 true EP1720376B1 (fr) 2010-06-02

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Application Number Title Priority Date Filing Date
EP06113264A Active EP1720376B1 (fr) 2005-05-02 2006-04-28 Système de prothèse auditive avec génération de signal monophonique et procédé correspondant

Country Status (5)

Country Link
US (1) US7783064B2 (fr)
EP (1) EP1720376B1 (fr)
AT (1) ATE470320T1 (fr)
DE (2) DE102005020316B3 (fr)
DK (1) DK1720376T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104078050A (zh) 2013-03-26 2014-10-01 杜比实验室特许公司 用于音频分类和音频处理的设备和方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5757932A (en) 1993-09-17 1998-05-26 Audiologic, Inc. Digital hearing aid system
CA2311405C (fr) 1998-02-18 2004-11-30 Topholm & Westermann Aps Systeme de prothese auditive numerique stereophonique
US7206421B1 (en) * 2000-07-14 2007-04-17 Gn Resound North America Corporation Hearing system beamformer
US7369669B2 (en) 2002-05-15 2008-05-06 Micro Ear Technology, Inc. Diotic presentation of second-order gradient directional hearing aid signals
EP1320281B1 (fr) 2003-03-07 2013-08-07 Phonak Ag Prothèse auditive binauriculaire et procédé de commande d'une telle prothèse
US7330556B2 (en) * 2003-04-03 2008-02-12 Gn Resound A/S Binaural signal enhancement system

Also Published As

Publication number Publication date
DK1720376T3 (da) 2010-10-04
DE502006007065D1 (de) 2010-07-15
EP1720376A3 (fr) 2007-07-25
US7783064B2 (en) 2010-08-24
EP1720376A2 (fr) 2006-11-08
US20060245596A1 (en) 2006-11-02
DE102005020316B3 (de) 2006-10-19
ATE470320T1 (de) 2010-06-15

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