EP1962556A2 - Procédé d'amélioration de la prise de conscience spatiale et dispositif auditif correspondant - Google Patents

Procédé d'amélioration de la prise de conscience spatiale et dispositif auditif correspondant Download PDF

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Publication number
EP1962556A2
EP1962556A2 EP08101788A EP08101788A EP1962556A2 EP 1962556 A2 EP1962556 A2 EP 1962556A2 EP 08101788 A EP08101788 A EP 08101788A EP 08101788 A EP08101788 A EP 08101788A EP 1962556 A2 EP1962556 A2 EP 1962556A2
Authority
EP
European Patent Office
Prior art keywords
signal
hearing
input signal
hearing device
control
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.)
Ceased
Application number
EP08101788A
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German (de)
English (en)
Other versions
EP1962556A3 (fr
Inventor
Robert Kasanmascheff
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 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 EP1962556A2 publication Critical patent/EP1962556A2/fr
Publication of EP1962556A3 publication Critical patent/EP1962556A3/fr
Ceased 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; 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
    • 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
    • H04R25/40—Arrangements for obtaining a desired directivity characteristic
    • H04R25/407—Circuits for combining signals of a plurality of transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/11—Positioning of individual sound objects, e.g. moving airplane, within a sound field
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field

Definitions

  • the present invention relates to a method for the binaural supply of a human hearing by means of a binaural hearing device. Moreover, the present invention relates to a corresponding hearing aid for binaural care.
  • a hearing device is understood to mean in particular a hearing device or a plurality of hearing aids as well as a headset or headphones.
  • 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) and in-the-ear hearing aids (ITO), e.g. also Concha hearing aids or canal hearing aids (CIC), provided.
  • BTE behind-the-ear hearing aids
  • ITO in-the-ear hearing aids
  • CIC 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. The latter usually creates a surround sound mixing for a free field, which in a room naturally arising spatiality is destroyed. This basic structure is in FIG.
  • 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 of the signal processing unit 3 is carried out by a likewise integrated into the hearing aid housing 1 battery. 5
  • a method for adapting a hearing aid with consideration of the head position is known.
  • the starting point is that a "blind source separation" is used to separate the signals of spatially distributed sources.
  • this requires a certain adaptation time, which would have to be waited for every movement again.
  • a position determination is provided for determining the current position of the head of the hearing device wearer, so that the position of the head in a processing unit allows the relative change of the sound source positions to be taken into account quickly.
  • the object of the present invention is therefore to propose a method and a corresponding hearing device with which an improved spatial perception is possible.
  • this object is achieved by a method for the binaural supply of a human hearing by means of a binaural hearing device by receiving an input signal of the hearing device, processing the input signal to an output signal that leads to a spatial perception, and controlling at least one size of the input signal based Output signal of the hearing such that the spatial perception is changed.
  • the invention provides a hearing aid for the binaural supply of a human hearing with a recording device for receiving an input signal of the hearing device, a processing device for generating an output signal that leads to a spatial perception, based on the input signal and a control device for controlling the processing device with respect at least one size of the output signal of Hearing apparatus such that the spatial perception is changed.
  • the brain can be helped to separate different sources without having to suppress them. Rather, for example, by introducing processing blocks into the signal path, the spatial impression can be restored or desired spatial effects can be achieved.
  • the input signal or signals are analyzed and / or classified, and the control is performed according to the classification result.
  • the spatial perception can be influenced depending on certain types or types of input signals.
  • Analyzing the input signal (s) may also include determining the reverberation of the input signal.
  • the control then takes place according to the reverberation.
  • the control can be done, for example, depending on the acoustic situation of a room.
  • the analyzing may include separating sound sources, and controlling corresponding to the separated sound sources.
  • the separation can be done by a directional microphone and / or a blind source separation algorithm. This makes it possible to control the spatial reproduction as a function of specific useful sound sources or noise sources.
  • the analyzing may further include noise detection, and the controlling according to the noise component.
  • the spatial reproduction independent of specific sound sources can be influenced as a whole depending on noise components.
  • a level of the input signal can be detected, so that the control of the spatial reproduction can be performed depending on the detected level.
  • a desired spatial perception can be achieved in a simple manner as a function of the volume.
  • At least one z. B. via an audio shoe externally fed signal if necessary, be detected in addition to a microphone signal, and the control carried out according to the detected signals.
  • This can be achieved by specific spatial reproduction, for example, inductively fed signals in large lecture halls or churches a different spatial impression than in conventional microphone signals.
  • the spatial perception influencing variables may be a distance of a source from the hearing device, a spatial direction of a source with respect to a predetermined zero-degree direction of the hearing device, a source location and / or a property of the room reverb. These parameters significantly affect spatial rendering.
  • stereo signals are present.
  • the invention can also be applied to methods that simulate the head-related, spatial transfer function.
  • the hearing aids can also receive exactly the same signals (eg mono signals).
  • the starting point for improving the spatial reproduction is that the algorithms present in a hearing aid (for example noise suppression) and the microphone positions can cause the naturally perceived sound to be alienated. Furthermore, the sources can be perceived very close to the head or even in the head, making it difficult to separate the sources while listening. Especially with the use of directional microphones, an improvement of the spatial reproduction may be necessary, because a directional microphone makes it possible to hide interference signals, but the sense of spatial perception is thereby also strongly negatively affected.
  • the invention for improved spatial reproduction, it is therefore provided according to the invention to include one or more signal processing blocks in the signal path, possibly also in different channels or spatial signal parts, which influences one or more of the abovementioned target variables.
  • the goal is either to restore a natural sound or to achieve certain virtual perceptions.
  • FIG. 2 An example of a general structure of a hearing aid with such a signal processing block for improving the spatial perception is in FIG. 2 shown schematically.
  • the processing unit 3 has a classifier 6, which provides a corresponding classification signal as an output signal.
  • the signal processing unit 3 may optionally have further inputs.
  • a signal H2 from a hearing aid on the other side of the head can be used as an input signal.
  • a signal EQ from an external source can be used as an input signal.
  • a signal from a stereo system can be coupled into the hearing aid via an audio shoe become.
  • the output of signals of the processing unit 3 is optionally separated according to interference and useful signals.
  • the signal processing unit 3 is followed by a directional microphone or BSS unit 7.
  • This may provide a desired number of directional microphones or directional microphone settings.
  • signals are separated by so-called “blind source separation" (BSS).
  • the directional microphone or BSS unit 7 can also be arranged between the microphones 2 and the signal processing unit 3. Then the microphone signals or the signals of the external sources and signals of the other side are fed into the directional microphone.
  • a directional microphone / BSS processing is not mandatory for the present invention, so that it may be possible to dispense with a corresponding processing unit.
  • the BSS unit 7 is followed by a processing block 8 for spatial processing.
  • this block can also have many other functions, as shown by FIG. 5 will be explained in more detail.
  • the aim is to influence the interaural cross-correlation, possibly the interaural time difference for the direction perception or a suitable frequency response shaping.
  • the processing of the signals is always carried out in this block 8 so that associated signals of the left and right side are changed in their spatial impression.
  • the output signals of the spatial processing block 8 are mixed in a subsequent mixing unit 9 with corresponding weights.
  • the mixing as well as the spatial processing is controlled by the control or signal processing unit 3 or its classifier 6.
  • the output signal of the mixing unit 9 is supplied to the loudspeaker or receiver 4.
  • control unit 3 as in the example of FIG. 2 is not mandatory.
  • the parameters for the mixture and the spatial processing are then fixed.
  • a very simple form of implementation can also be that only one signal each from left and right is processed and the mixture is eliminated.
  • the hearing aid has at the signal input a microphone 10. Downstream is a signal processing 11, which has a classifier 12. In addition, the signal processing 11 is for the usual gain.
  • the output signal of the signal processing 11 is branched to two filters or directional microphones 13, 14. In the one branch, a finite impulse response (FIR) filter 15 with constant amplitude response (all-pass) is furthermore provided. It ensures a certain phase shift of the signal.
  • the signals of both branches are mixed in a mixer 16 and fed to a loudspeaker 17.
  • the classifier 12 influences the phase shift of the FIR filter 15 and / or the mixing ratio in the mixer 16.
  • the FIR filter 15 is in FIG. 4 shown in concrete.
  • a digital input signal ES is multiplied in fixed predetermined time delay stages (z -1 ) with different coefficients K1, K2, K3 and K4.
  • the sum of the individual signals leads to an output signal AS.
  • z -1 time delay stages
  • K1, K2, K3 and K4 coefficients K1, K2, K3 and K4.
  • the sum of the individual signals leads to an output signal AS.
  • a corresponding phase or time shift of the signal results. If the shift in the left ear signal is different from the right one, the perception of space is different. It can be z. B. the direction and / or distance perception can be influenced.
  • the above-described inventive method for improving the spatial perceptibility or the corresponding Hearing devices / hearing aids thus lead, for example, to improved sound perception.
  • music can sound more lively.
  • the brain is supported by the deliberately controlled different localization of the sources to be able to better separate the "competing" sources.

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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)
  • Circuit For Audible Band Transducer (AREA)
EP08101788A 2007-02-22 2008-02-20 Procédé d'amélioration de la prise de conscience spatiale et dispositif auditif correspondant Ceased EP1962556A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007008738A DE102007008738A1 (de) 2007-02-22 2007-02-22 Verfahren zur Verbesserung der räumlichen Wahrnehmung und entsprechende Hörvorrichtung

Publications (2)

Publication Number Publication Date
EP1962556A2 true EP1962556A2 (fr) 2008-08-27
EP1962556A3 EP1962556A3 (fr) 2009-05-06

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EP08101788A Ceased EP1962556A3 (fr) 2007-02-22 2008-02-20 Procédé d'amélioration de la prise de conscience spatiale et dispositif auditif correspondant

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US (1) US20080205659A1 (fr)
EP (1) EP1962556A3 (fr)
DE (1) DE102007008738A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2405673A1 (fr) * 2010-07-07 2012-01-11 Siemens Medical Instruments Pte. Ltd. Procédé de localisation d'un source audio et d'un système auditif à plusieurs canaux
EP2744229A3 (fr) * 2012-12-14 2014-07-09 Starkey Laboratories, Inc. Mode d'amélioration spatiale pour prothèses auditives
JP2023515240A (ja) * 2020-04-10 2023-04-12 エックス デベロップメント エルエルシー 水産養殖のためのマルチチャンバ点灯コントローラ

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WO2009093416A1 (fr) * 2008-01-21 2009-07-30 Panasonic Corporation Dispositif et procédé de traitement de signal sonore
DE102008053458A1 (de) 2008-10-28 2010-04-29 Siemens Medical Instruments Pte. Ltd. Hörvorrichtung mit spezieller Situationserkennungseinheit und Verfahren zum Betreiben einer Hörvorrichtung
DE102010012622B4 (de) * 2010-03-24 2015-04-30 Siemens Medical Instruments Pte. Ltd. Binaurales Verfahren und binaurale Anordnung zur Sprachsteuerung von Hörgeräten
US9185501B2 (en) 2012-06-20 2015-11-10 Broadcom Corporation Container-located information transfer module
CN104010265A (zh) 2013-02-22 2014-08-27 杜比实验室特许公司 音频空间渲染设备及方法
WO2016180462A1 (fr) * 2015-05-11 2016-11-17 Advanced Bionics Ag Système d'aide auditive
TWI609589B (zh) * 2015-05-14 2017-12-21 陳光超 聽覺輔助裝置與聽覺輔助運作方法
DE102017215823B3 (de) 2017-09-07 2018-09-20 Sivantos Pte. Ltd. Verfahren zum Betrieb eines Hörgerätes
TWI692719B (zh) * 2019-03-21 2020-05-01 瑞昱半導體股份有限公司 音訊處理方法與音訊處理系統
CN111757240B (zh) * 2019-03-26 2021-08-20 瑞昱半导体股份有限公司 音频处理方法与音频处理系统
CN111757239B (zh) * 2019-03-28 2021-11-19 瑞昱半导体股份有限公司 音频处理方法与音频处理系统
US20230239617A1 (en) * 2020-12-25 2023-07-27 Panasonic Intellectual Property Management Co., Ltd. Ear-worn device and reproduction method
DE102022202646B3 (de) 2022-03-17 2023-08-31 Sivantos Pte. Ltd. Verfahren zum Betrieb eines binauralen Hörsystems

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DE10351509A1 (de) 2003-11-05 2005-06-09 Siemens Audiologische Technik Gmbh Verfahren zur Adaption eines Hörgeräts unter Berücksichtigung der Kopfposition und entsprechendes Hörgerät
EP1655998A2 (fr) 2004-11-08 2006-05-10 Siemens Audiologische Technik GmbH Procédé de génération de signaux stéréo pour sources séparées et système acoustique correspondant

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US5651071A (en) * 1993-09-17 1997-07-22 Audiologic, Inc. Noise reduction system for binaural hearing aid
US7206421B1 (en) * 2000-07-14 2007-04-17 Gn Resound North America Corporation Hearing system beamformer
US7447325B2 (en) * 2002-09-12 2008-11-04 Micro Ear Technology, Inc. System and method for selectively coupling hearing aids to electromagnetic signals
CA2452945C (fr) * 2003-09-23 2016-05-10 Mcmaster University Dispositif auditif binaural adaptatif
US20070160242A1 (en) * 2006-01-12 2007-07-12 Phonak Ag Method to adjust a hearing system, method to operate the hearing system and a hearing system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10351509A1 (de) 2003-11-05 2005-06-09 Siemens Audiologische Technik Gmbh Verfahren zur Adaption eines Hörgeräts unter Berücksichtigung der Kopfposition und entsprechendes Hörgerät
EP1655998A2 (fr) 2004-11-08 2006-05-10 Siemens Audiologische Technik GmbH Procédé de génération de signaux stéréo pour sources séparées et système acoustique correspondant

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2405673A1 (fr) * 2010-07-07 2012-01-11 Siemens Medical Instruments Pte. Ltd. Procédé de localisation d'un source audio et d'un système auditif à plusieurs canaux
DE102010026381A1 (de) * 2010-07-07 2012-01-12 Siemens Medical Instruments Pte. Ltd. Verfahren zum Lokalisieren einer Audioquelle und mehrkanaliges Hörsystem
EP2744229A3 (fr) * 2012-12-14 2014-07-09 Starkey Laboratories, Inc. Mode d'amélioration spatiale pour prothèses auditives
US9191755B2 (en) 2012-12-14 2015-11-17 Starkey Laboratories, Inc. Spatial enhancement mode for hearing aids
US9516431B2 (en) 2012-12-14 2016-12-06 Starkey Laboratories, Inc. Spatial enhancement mode for hearing aids
JP2023515240A (ja) * 2020-04-10 2023-04-12 エックス デベロップメント エルエルシー 水産養殖のためのマルチチャンバ点灯コントローラ

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Publication number Publication date
EP1962556A3 (fr) 2009-05-06
US20080205659A1 (en) 2008-08-28
DE102007008738A1 (de) 2008-08-28

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