EP2104377A2 - Système auditif doté d'un échange de signal de bande partiel et procédé correspondant - Google Patents

Système auditif doté d'un échange de signal de bande partiel et procédé correspondant Download PDF

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Publication number
EP2104377A2
EP2104377A2 EP09154637A EP09154637A EP2104377A2 EP 2104377 A2 EP2104377 A2 EP 2104377A2 EP 09154637 A EP09154637 A EP 09154637A EP 09154637 A EP09154637 A EP 09154637A EP 2104377 A2 EP2104377 A2 EP 2104377A2
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EP
European Patent Office
Prior art keywords
signal
hearing
hearing device
input
transmitted
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Withdrawn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
EP09154637A
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German (de)
English (en)
Other versions
EP2104377A3 (fr
Inventor
Eghart Fischer
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 EP2104377A2 publication Critical patent/EP2104377A2/fr
Publication of EP2104377A3 publication Critical patent/EP2104377A3/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Withdrawn legal-status Critical Current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
    • H04R25/40—Arrangements for obtaining a desired directivity characteristic
    • H04R25/405—Arrangements for obtaining a desired directivity characteristic by combining a plurality of transducers
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00—Signal processing covered by H04R, not provided for in its groups
    • H04R2430/20—Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic
    • 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
    • H04R25/40—Arrangements for obtaining a desired directivity characteristic
    • H04R25/407—Circuits for combining signals of a plurality of transducers
    • 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

Definitions

  • the present invention relates to a hearing system for the binaural supply of a user with a first hearing device and a second hearing device.
  • the first hearing device has a first signal input device for supplying a first input signal and a first communication device.
  • the second hearing device has a second signal input device for supplying a second input signal, a second communication device for receiving a signal from the first communication device and a second signal processing device for processing signals of the second signal input device and the second communication device to a common output signal.
  • the present invention relates to a method for processing signals for a binaural supply with a first and a second hearing device.
  • the term "hearing device” is understood here to mean any sound-emitting device which can be worn in or on the ear, in particular a hearing device, a headset, headphones and the like.
  • Hearing aids are portable hearing aids that are used to care for the hearing impaired.
  • different types of hearing aids such as behind-the-ear hearing aids (BTE), hearing aid with external handset (RIC: receiver in the canal) and in-the-ear hearing aids (IDO), for example Concha hearing aids or canal hearing aids (ITE, CIC).
  • BTE behind-the-ear hearing aids
  • RIC hearing aid with external handset
  • IDO in-the-ear hearing aids
  • ITE Canal hearing aids
  • the hearing aids listed by way of example are worn on the outer ear or in the ear canal.
  • bone conduction hearing aids, implantable or vibrotactile hearing aids are also available on the market. The stimulation of the damaged hearing takes place either mechanically or electrically.
  • Hearing aids have in principle as essential components an input transducer, an amplifier and an output transducer.
  • the input transducer is usually a sound receiver, z. As a microphone, and / or an electromagnetic receiver, for. B. an induction coil.
  • the output transducer is usually used as an electroacoustic transducer, z. As miniature speaker, or as an electromechanical transducer, z. B. bone conduction, realized.
  • the amplifier is usually integrated in a signal processing unit. This basic structure is in FIG. 1 shown using the example of a behind-the-ear hearing aid. In a hearing aid housing 1 for carrying behind the ear, one or more microphones 2 for receiving the sound from the environment are installed.
  • a signal processing unit 3 which is also integrated in the hearing aid housing 1, processes the microphone signals and amplifies them.
  • the output signal of the signal processing unit 3 is transmitted to a loudspeaker or earpiece 4, which outputs an acoustic signal.
  • the sound is optionally transmitted via a sound tube, which is fixed with an earmold in the ear canal, to the eardrum of the device carrier.
  • the power supply of the hearing device and in particular the signal processing unit 3 is effected by a likewise integrated into the hearing aid housing 1 battery. 5
  • a hearing aid system for the binaural care of a hearing impaired person comprises two hearing aids, one of which is worn on the left and the other on the right ear.
  • this is called a "binaurally-coupled hearing system.”
  • Such a binaurally coupled hearing system offers possibilities of spatial signal processing, which are not possible with a monaural system, since in this system signals can be transmitted from one side to the other.
  • WO 99/431185 A1 is a binaural digital hearing aid system known in which data is transmitted crosswise from the right to the left and from the left to the right hearing aid.
  • the data received from the other hearing aid is processed binaurally with the hearing aid's own data. If necessary, the data is compressed before transmission.
  • EP 1 771 038 A2 a method for operating a hearing aid device system for binaural care of a user.
  • the input signals are transmitted crosswise to the other hearing aid, respectively, so that one from the microphone of a hearing aid Recorded sound signal after the signal processing and amplification can be output via the handset of the other hearing aid.
  • the distance between a respective handset and a microphone, between which a feedback path exists is substantially increased for the relevant audio signals.
  • the object of the present invention is thus to provide a hearing system for the binaural supply of a user, in which data can be transmitted between two hearing devices, but in which the energy or computational effort for the data exchange or the processing of the exchanged data is minimized ,
  • a corresponding method for processing signals should be provided.
  • a hearing system for binaurally supplying a user with a first hearing device including a first signal input device for supplying a first input signal and a first communication device, and a second hearing device including a second signal input device for providing a second input signal, a second communication device for receiving a signal from the first communication device and a second signal processing device for processing signals of the second signal input device and the second communication device into a common output signal, wherein the signal transmitted from the first to the second communication device corresponds to a true spectral part of the total frequency spectrum of the first input signal, and wherein in the spectral part of the total frequency spectrum, the transmitted signal together with ei a signal of the second signal processing device is binaurally processed by the second signal processing means, while the signal of the second signal processing means in the remaining part of the total frequency spectrum is processed by the second signal processing means monaural.
  • the invention provides a method for processing signals for a binaural supply with a first and a second hearing device by providing a first input signal in the first hearing device, providing a second input signal in the second hearing device, transmitting a signal from the first to the second Hearing device, processing the second input signal together with the signal from the first hearing device in the second hearing device to an output signal of the second hearing device, wherein the signal transmitted from the first to the second hearing device corresponds to a true spectral part of the total frequency spectrum of the first input signal, and wherein the transmitted signal is binaurally processed by the second hearing device together with a corresponding spectral part of the second input signal of the second hearing device to the spectral part of the total frequency spectrum while the second input signal of the second hearing device is processed monaurally in the remaining part of the total frequency spectrum by the second hearing device.
  • the first hearing device has a first signal processing device to receive signals from the first signal input device together with signals from the first communication device, that from the second hearing device come to process to a common output signal.
  • a first signal processing device to receive signals from the first signal input device together with signals from the first communication device, that from the second hearing device come to process to a common output signal.
  • the first and second signal input means may each comprise at least two microphones.
  • a beamforming or a high-quality directional microphone or a high-quality binding-source separation can already be realized in the individual hearing devices.
  • only the relevant spectral components of these results are transmitted to the other hearing device.
  • the frequencies of the low-frequency component are less than 1 kHz or 2 kHz.
  • a feedback reduction algorithm a beamforming algorithm or a blind-source separation algorithm can be implemented which uses signals from the respective other hearing device , This can be achieved especially in these algorithms, in which the data exchange between the hearing brings special advantages, a significant savings in computational effort and energy consumption.
  • FIG. 2 is a hearing aid system with a left hearing aid 10 and a right hearing aid 20 for the binaural supply of a hearing aid wearer 30 shown schematically.
  • the left hearing aid has to realize a directional microphone or to perform beamforming, blind-source separation and the like two microphones 11 and 12.
  • the output signals of the microphones 11 and 12 are each a frequency divider 13, 14, respectively.
  • Each of these two crossovers 13 and 14 has a low-pass output TP and a high-pass output HP.
  • other signal input devices such as a telecoil, a radio antenna and the like, are used.
  • the low-frequency components of the input signals from the crossovers 13 and 14 are fed to a binaural processing unit 15.
  • the low-frequency components are fed to a transmitter 16 integrated in the hearing device in order to transmit it wirelessly to the right-hand hearing device 20.
  • a receiver 17 receives the low-frequency portion of input signals of the right hearing aid and makes it available to the binaural processing unit 15. There, therefore, the low-frequency components of the input signals of the left hearing aid and the right hearing aid are processed together binaurally and it is a low-frequency output signal generated.
  • the high-frequency components of the crossovers 13 and 14 are fed to a monaural processing unit 18.
  • This unit generates a high-frequency output signal and supplies it to an adder or a summarizing unit 19. It combines the high-frequency output signal of the monaural processing unit 18 with the low-frequency output signal of the binaural processing unit 15 to a common output signal SAL of the left hearing aid 10.
  • This output signal SAL is optionally further processed or supplied to a handset (not shown).
  • the right hearing aid 20 is constructed symmetrically to the left hearing aid 10 with respect to the signal flow of interest here. It also has two microphones 21 and 22 whose signals are split with crossovers 23 and 24 in high-frequency and low-frequency components.
  • the low-frequency components are, on the one hand, further processed by a binaural processing unit 25 and, on the other hand, transmitted by a transmitter 26 to the receiver 17 of the left-hand hearing device.
  • a receiver 27 receives the low-frequency signals of the transmitter 16 from the left hearing aid 10 and makes them available for common processing with the low-frequency components of the right hearing aid 20 in the binaural processing unit 25.
  • the high-frequency components of the input signal are supplied by the crossover networks 23 and 24 to a monaural processing unit 28.
  • the low-frequency output signal of the binaural processing unit 25 and the high-frequency output signal of the monaural processing unit 28 are then combined in a summary unit 29 into a common output signal SAR of the right hearing aid.
  • the two hearing aids 10 and 20 thus each have a communication device, namely a transmitter and a receiver 16, 17 and 26, 27 for bidirectional communication.
  • a communication device namely a transmitter and a receiver 16, 17 and 26, 27 for bidirectional communication.
  • a signal processing device eg binaural supply unit 15 or 25
  • the input signals in two frequency ranges for.
  • a low-frequency range below 1 to 2 kHz and a high-frequency range above about 1 to 2 kHz are split. Only the low-frequency components are processed binaurally and transmitted to the other side, since the high frequency components can be satisfactorily processed only monaurally. After the respective parts have been processed binaurally or monaurally, they are subsequently combined to form two monaural output signals SAL and SAR.
  • An advantage of this splitting of the signal to be processed is that both for the processing and for the transmission of a lower data rate is necessary than in a broadband transmission or processing. In the specific example, only the low-frequency signals below about 1 to 2 kHz must be transmitted.
  • Another advantage of the binaural processing system is that there are few problems with microphone noise at low frequencies. The reason is that the microphone signals are exchanged in the low-frequency range between the left and right hearing aid and thus there is a large microphone distance, namely the distance from one head side to the other. This is especially important for differential directional microphones.
  • Another advantage of the presented system is that for monaural processing of the high frequencies under certain circumstances even smaller microphone distances than previously possible because monaural only higher frequency components are processed.
  • the individual hearing aids can therefore be made more compact if necessary.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Stereophonic System (AREA)
EP09154637A 2008-03-20 2009-03-09 Système auditif avec échange de signal en sous bandes et procédé correspondant Withdrawn EP2104377A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008015263A DE102008015263B4 (de) 2008-03-20 2008-03-20 Hörsystem mit Teilbandsignalaustausch und entsprechendes Verfahren

Publications (2)

Publication Number Publication Date
EP2104377A2 true EP2104377A2 (fr) 2009-09-23
EP2104377A3 EP2104377A3 (fr) 2013-04-03

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EP09154637A Withdrawn EP2104377A3 (fr) 2008-03-20 2009-03-09 Système auditif avec échange de signal en sous bandes et procédé correspondant

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US (1) US8126153B2 (fr)
EP (1) EP2104377A3 (fr)
DE (1) DE102008015263B4 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011101042A1 (fr) * 2010-02-19 2011-08-25 Siemens Medical Instruments Pte. Ltd. Procédé de perception latérale biauriculaire pour aides auditives
US9949041B2 (en) 2014-08-12 2018-04-17 Starkey Laboratories, Inc. Hearing assistance device with beamformer optimized using a priori spatial information
WO2024067994A1 (fr) * 2022-09-30 2024-04-04 Mic Audio Solutions Gmbh Système et procédé de traitement de signaux de microphone

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2352312B1 (fr) * 2009-12-03 2013-07-31 Oticon A/S Procédé de suppression dynamique de bruit acoustique environnant lors de l'écoute sur des entrées électriques
CN102771144B (zh) * 2010-02-19 2015-03-25 西门子医疗器械公司 用于方向相关空间噪声减低的设备和方法
DE102010026381A1 (de) * 2010-07-07 2012-01-12 Siemens Medical Instruments Pte. Ltd. Verfahren zum Lokalisieren einer Audioquelle und mehrkanaliges Hörsystem
DE102012204877B3 (de) * 2012-03-27 2013-04-18 Siemens Medical Instruments Pte. Ltd. Hörvorrichtung für eine binaurale Versorgung und Verfahren zum Bereitstellen einer binauralen Versorgung
DE102013207149A1 (de) 2013-04-19 2014-11-06 Siemens Medical Instruments Pte. Ltd. Steuerung der Effektstärke eines binauralen direktionalen Mikrofons
CN103359384B (zh) * 2013-07-08 2016-01-06 李建勋 具有线夹的有线电器
CN105981409B (zh) 2014-02-10 2019-06-14 伯斯有限公司 会话辅助系统
DE102017201195A1 (de) 2017-01-25 2018-07-26 Sivantos Pte. Ltd. Verfahren zum Betrieb eines binauralen Hörgerätesystems
US10555094B2 (en) * 2017-03-29 2020-02-04 Gn Hearing A/S Hearing device with adaptive sub-band beamforming and related method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999043185A1 (fr) 1998-02-18 1999-08-26 Tøpholm & Westermann APS Systeme de prothese auditive numerique stereophonique
WO2004114722A1 (fr) 2003-06-24 2004-12-29 Gn Resound A/S Systeme de prothese auditive binaural a traitement sonore coordonne
EP1771038A2 (fr) 2005-09-30 2007-04-04 Siemens Audiologische Technik GmbH Procédé d'utilisation d'un système de prothèse auditive pour le traitement binaural d'un utilisateur

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JP4939722B2 (ja) * 2000-07-14 2012-05-30 ジーエヌ リザウンド エー／エス 同期式ステレオ聴覚システム
DK1699261T3 (da) * 2005-03-01 2011-08-15 Oticon As System og fremgangsmåde til bestemmelse af direktionalitet af lyd detekteret af et høreapparat
US8483416B2 (en) * 2006-07-12 2013-07-09 Phonak Ag Methods for manufacturing audible signals
EP2123114A2 (fr) * 2007-01-30 2009-11-25 Phonak AG Procede et systeme pour fournir une aide auditive biauriculaire

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999043185A1 (fr) 1998-02-18 1999-08-26 Tøpholm & Westermann APS Systeme de prothese auditive numerique stereophonique
WO2004114722A1 (fr) 2003-06-24 2004-12-29 Gn Resound A/S Systeme de prothese auditive binaural a traitement sonore coordonne
EP1771038A2 (fr) 2005-09-30 2007-04-04 Siemens Audiologische Technik GmbH Procédé d'utilisation d'un système de prothèse auditive pour le traitement binaural d'un utilisateur

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011101042A1 (fr) * 2010-02-19 2011-08-25 Siemens Medical Instruments Pte. Ltd. Procédé de perception latérale biauriculaire pour aides auditives
WO2011101043A1 (fr) * 2010-02-19 2011-08-25 Siemens Medical Instruments Pte. Ltd. Procédé de perception latérale biauriculaire pour aides auditives
US9167358B2 (en) 2010-02-19 2015-10-20 Sivantos Pte. Ltd. Method for the binaural left-right localization for hearing instruments
US9167357B2 (en) 2010-02-19 2015-10-20 Sivantos Pte. Ltd. Method for the binaural left-right localization for hearing instruments
US9949041B2 (en) 2014-08-12 2018-04-17 Starkey Laboratories, Inc. Hearing assistance device with beamformer optimized using a priori spatial information
WO2024067994A1 (fr) * 2022-09-30 2024-04-04 Mic Audio Solutions Gmbh Système et procédé de traitement de signaux de microphone

Also Published As

Publication number Publication date
EP2104377A3 (fr) 2013-04-03
US20090238385A1 (en) 2009-09-24
DE102008015263B4 (de) 2011-12-15
US8126153B2 (en) 2012-02-28
DE102008015263A1 (de) 2009-10-01

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