EP1720376A2 - 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

Info

Publication number: EP1720376A2
Authority: EP; European Patent Office
Prior art keywords: hearing aid; signal; hearing; input signals; mono
Prior art date: 2005-05-02
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

EP06113264A

Other languages

German (de)

English (en)

Other versions

EP1720376B1 (fr

EP1720376A3 (fr

Inventor

Markus Laich

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 Audiologische 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.)

2005-05-02

Filing date

2006-04-28

Publication date

2006-11-08

2006-04-28 Application filed by Siemens Audiologische Technik GmbH filed Critical Siemens Audiologische Technik GmbH

2006-11-08 Publication of EP1720376A2 publication Critical patent/EP1720376A2/fr

2007-07-25 Publication of EP1720376A3 publication Critical patent/EP1720376A3/fr

2010-06-02 Application granted granted Critical

2010-06-02 Publication of EP1720376B1 publication Critical patent/EP1720376B1/fr

2026-04-28 Anticipated expiration legal-status Critical

Status Expired - Lifetime 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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Electric hearing aids
- H04R25/55—Electric hearing aids 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.
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.
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.
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 page 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.
a comparison of the input signals can be carried out in each of the two signal processing devices 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 optimized signal on both sides.
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 input signal EL for the left ear and the input signal ER for the right ear are plotted against the 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.
the signals shown in FIG. 1 can also represent output signals of the respective signal processing of the corresponding hearing device.
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.
FIG. 2 shows the signal spectra of the input signals EL and ER for the left and right ear and the partial mono signal TM generated therefrom.
the two input signals for the generation of the partial 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 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.
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. Between the frequencies f1 and f2 is 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. After the frequency f2, 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. By means of this signal generation, it can be ensured that the highest possible input signal is always presented as a mono signal on both hearing aids.
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)

EP06113264A 2005-05-02 2006-04-28 Système de prothèse auditive avec génération de signal monophonique et procédé correspondant Expired - Lifetime 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 true EP1720376A2 (fr)	2006-11-08
EP1720376A3 EP1720376A3 (fr)	2007-07-25
EP1720376B1 EP1720376B1 (fr)	2010-06-02

Family

ID=36763107

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP06113264A Expired - Lifetime 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
AU733433B2 (en) *	1998-02-18	2001-05-17	Widex A/S	A binaural digital hearing aid system
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
US7286672B2 (en) *	2003-03-07	2007-10-23	Phonak Ag	Binaural hearing device and method for controlling a hearing device system
US7330556B2 (en) *	2003-04-03	2008-02-12	Gn Resound A/S	Binaural signal enhancement system

2005
- 2005-05-02 DE DE102005020316A patent/DE102005020316B3/de not_active Withdrawn - After Issue
2006
- 2006-04-20 US US11/408,252 patent/US7783064B2/en active Active
- 2006-04-28 DK DK06113264.3T patent/DK1720376T3/da active
- 2006-04-28 EP EP06113264A patent/EP1720376B1/fr not_active Expired - Lifetime
- 2006-04-28 DE DE502006007065T patent/DE502006007065D1/de not_active Expired - Lifetime
- 2006-04-28 AT AT06113264T patent/ATE470320T1/de active

Also Published As

Publication number	Publication date
DK1720376T3 (da)	2010-10-04
DE102005020316B3 (de)	2006-10-19
ATE470320T1 (de)	2010-06-15
US7783064B2 (en)	2010-08-24
EP1720376B1 (fr)	2010-06-02
EP1720376A3 (fr)	2007-07-25
DE502006007065D1 (de)	2010-07-15
US20060245596A1 (en)	2006-11-02

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