EP3364668A1 - Procédé de fonctionnement d'un dispositif auditif et dispositif auditif - Google Patents

Procédé de fonctionnement d'un dispositif auditif et dispositif auditif Download PDF

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Publication number
EP3364668A1
EP3364668A1 EP18151927.3A EP18151927A EP3364668A1 EP 3364668 A1 EP3364668 A1 EP 3364668A1 EP 18151927 A EP18151927 A EP 18151927A EP 3364668 A1 EP3364668 A1 EP 3364668A1
Authority
EP
European Patent Office
Prior art keywords
signal
audio input
input signal
microphone
hearing device
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Withdrawn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
EP18151927.3A
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German (de)
English (en)
Inventor
Dirk Junius
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
Sivantos 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 Sivantos Pte Ltd filed Critical Sivantos Pte Ltd
Publication of EP3364668A1 publication Critical patent/EP3364668A1/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Withdrawn legal-status Critical Current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; 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
    • H04R25/30—Monitoring or testing of hearing aids, e.g. functioning, settings, battery power
    • H04R25/305—Self-monitoring or self-testing
    • 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
    • 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
    • H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
    • H04R25/505—Customised settings for obtaining desired overall acoustical characteristics using digital signal processing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/43—Signal processing in hearing aids to enhance the speech intelligibility
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/61—Aspects relating to mechanical or electronic switches or control elements, e.g. functioning
    • 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
    • H04R25/43—Electronic input selection or mixing based on input signal analysis, e.g. mixing or selection between microphone and telecoil or between microphones with different directivity characteristics
    • 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 invention relates to a method for operating a hearing device, in particular a hearing device comprising at least one microphone for generating an electric microphone signal from an ambient sound and an audio signal input for receiving an external audio input signal. Furthermore, the invention relates to such a hearing device.
  • Hearing devices are usually used to pass on a detected by a microphone noise ("ambient sound”) to the hearing of the user of the hearing.
  • a microphone noise (“ambient sound”)
  • This processing usually takes place taking into account a hearing loss of the respective user.
  • different frequency ranges are differentially amplified (i.e., raised or lowered) to compensate for the hearing loss of the user, at least to some degree.
  • a filtering of disturbing background noise is added.
  • hearing devices usually comprise a loudspeaker for acoustically reproducing the processed signal.
  • mechanical or electrical transducers are used which output the processed microphone signal to the user via bone conduction or electrical stimulation of the inner ear.
  • hearing device fall not only hearing aids but also other devices that do not or not only to compensate for hearing loss. These include, for example, head sets, headphones or so-called tinnitus maskers, which are intended to mask (ie cover) a possibly existing ear noise of the user by means of a ("therapeutic") noise.
  • an additional (“external”) audio input signal into the hearing device (on a non-acoustic path) and thus output this independently of an acoustic detection by the microphone.
  • Such an audio input signal is, for example, the "sound output" of a television set, a stereo system or else of a playback system during a lecture, concert or the like.
  • the user of the hearing device is not the only one who wishes to receive the information of the audio input signal. For example, many people often watch TV in front of the same device at the same time, listen to music from the same stereo or join the same talk. In this case, it is thus necessary that the audio input signal is transmitted not only exclusively to the hearing device of the user, but also acoustically to the other persons. However, it may happen that the user of the hearing device receives the information of the audio input signal not only as an output of his hearing device, but also on an acoustic path independently of his hearing. Ie. the acoustic output of his hearing device is superimposed with sounds that "pass the hearing device" on the acoustic path to the user's hearing.
  • the invention has for its object to provide a hearing with improved hearing comfort.
  • the method according to the invention serves to operate a hearing device.
  • This hearing device comprises at least one microphone for generating an electrical microphone signal from an ambient sound as well as an audio signal input for receiving a (preferably external, that is, in particular from an audio device separate from the hearing device) separate from the microphone signal audio input signal.
  • a preferably external, that is, in particular from an audio device separate from the hearing device
  • an output signal is generated on the basis of the microphone signal and / or the audio input signal.
  • the external audio input signal is received in a predetermined range of lower (preferably audible "audio").
  • the term "at least additionally attenuated” is understood here and below to mean in particular that an attenuation of the audio input signal due to the decision made "active" - d. H. by a corresponding signal processing in the hearing - takes place.
  • the hearing device is a hearing aid
  • an increase and / or decrease in different frequency ranges The attenuation in the predetermined low frequency range, which is carried out as a function of the decision made, thus actually takes place (only) in this case in addition to this individually predetermined hearing aid-specific signal processing.
  • the attenuation depending on the decision made on the reception of the audio input signal (irrespective of hearing loss-specific signal processing) described above is always referred to as "additional attenuation".
  • the output signal can be generated in a variant of a combination of the microphone signal and the audio input signal.
  • the audio input signal can be used to generate the output signal.
  • the audio input signal is substantially (ie, optionally, except for the individual, hearing impairment specific Signal processing) in its full, input-side bandwidth used to generate the output signal.
  • either the audio input signal is used with (preferably additional) attenuation of the low-frequency signal components or possibly only under conventional signal loss specific signal processing to generate the output signal.
  • the low-frequency signal components of the audio input signal - here and below “damping" in the sense of a true “damping” in particular as a lowering of a signal level in this frequency range or optionally as a "cut", d. H. completely hiding this frequency range understood.
  • This low-frequency area to be attenuated in addition to the decision is in particular less than 1500 Hz, preferably less than 1000 Hz.
  • this low frequency range can also be user-specific - for example in the case of an individual adaptation of the function of the hearing aid trained hearing in a hearing care professional - given, for example, be deposited in a memory unit of the hearing.
  • the decision-based additional attenuation of low-frequency signal components of the audio input signal described above advantageously enables an improved adaptation of the sound quality of the hearing apparatus to the present auditory situation and thus an improvement in listening comfort.
  • the additional attenuation that the sound quality is improved in particular in the cases that in addition to the audio input signal, the same (sound information) reaches the user's hearing on an acoustic path, especially on the hearing.
  • low-frequency signal components often pass audibly past the hearing device for the user to the user's hearing and influence there the acoustic output of the audio input signal.
  • unwanted sound effects such as, for example, the so-called comb filter effect often occur (for example due to, in particular, delay-time-related interferences), which, despite feeding the external audio input signal into the hearing device, can lead to a subjectively perceived sound distorted or unpleasant.
  • a superimposition of the low-frequency signal components by the additional attenuation of the low-frequency signal components in the audio input signal a better sound quality for the user of the hearing are made possible, because the transmission of the sound information of the low-frequency signal components in this case (also) on acoustic way.
  • an input of the user-side decision into the hearing device is requested (preferably directly).
  • the receipt of the audio input signal is thus preferably causal for this request as well as for the subsequently made decision.
  • it is preferably queried concretely whether the user desires the additional attenuation of the low-frequency signal components.
  • the external audio input signal (or its audio information) is also available acoustically (for example as an output via television sets, stereo systems or other loudspeakers).
  • a loudspeaker of the hearing device outputs an audible and / or optionally a control device (for example a smartphone or another remote control device assigned to the hearing device) via a control device separate from the hearing device, a visual message for querying the decision.
  • a control device for example a smartphone or another remote control device assigned to the hearing device
  • the input of the decision by the user takes place in accordance with, for example, a switch or button on the hearing device itself and / or optionally via an input to the separate control unit.
  • the above-described decision with regard to the additional attenuation is preferably based on a switching between two "listening programs" stored in a memory unit of the hearing device (ie in particular predetermined parameter sets) relating to the signal processing of the external one Directed audio input signal.
  • the user can thus choose the subjectively better signal processing for him.
  • the audio input signal is compared with the microphone signal (generated by the microphone) in an advantageous variant of the method upon receipt of the audio input signal.
  • the decision to additionally attenuate the low-frequency signal components of the audio input signal is made in particular with a sufficient (or: "significant") similarity of the audio input signal with the microphone signal. This means that the audio input signal is additionally attenuated in its low-frequency signal components when the audio input signal and the microphone signal are identical (in particular to a comparatively high degree).
  • the entered user-side decision is also taken into account. For example, this user-side decision becomes one given higher priority to the device-side decision, so that the user thus has the opportunity, according to current personal preference to turn on or off the additional attenuation of the audio input signal.
  • a correlation function in particular a cross-correlation function, is determined for these two signals in order to compare the audio input signal and the microphone signal.
  • the audio input signal and the microphone signal are correlated (cross) with each other.
  • the similarity of the audio input signal and the microphone signal is determined on the basis of a maximum of the above-described correlation function. This maximum is recognized to be a measure of the equality of the signals correlated with one another.
  • exceeding a predetermined threshold value by the maximum of the cross-correlation is used as the criterion for the sufficient similarity of the audio input signal with the microphone signal. That is, the sufficient (significant) similarity of the two signals is detected when the maximum exceeds the predetermined threshold.
  • the output signal (in particular exclusively) is generated on the basis of the microphone signal by performing the signal processing before the time of receipt of the audio input signal.
  • the hearing device returns to its previous signal processing.
  • the actual hearing situation present after the end of the reception of the audio input signal is analyzed (in particular "classified") and, based on the result of the analysis, the signal processing is adapted accordingly ("new").
  • the hearing device comprises at least the microphone described above, which is used to generate the microphone signal from the ambient sound.
  • the hearing device further comprises the audio signal input for receiving the separate from the microphone signal audio input signal.
  • the hearing device comprises a signal processor which is set up to carry out the method of the type described above.
  • the signal processor is thus adapted to generate the output signal on the basis of the microphone signal and / or the audio input signal and, upon receipt of the external audio input signal, depending on the decision taken automatically and / or by the user, the low-frequency signal components of the external audio signal. At least in addition to attenuate input signal and use to generate the output signal.
  • the hearing aid according to the invention is operated with the method described above.
  • the signal processor is formed at least in the core by a microcontroller with a processor and a data memory in which the functionality for performing the method according to the invention in the form of operating software (firmware) is implemented programmatically, so that the method - optionally in interaction with the User of the hearing device - is performed automatically when running the operating software in the microcontroller.
  • the signal processor alternatively comprises a non-programmable electronic component, for example an ASIC, in which the functionality for carrying out the method according to the invention is implemented by means of circuitry.
  • the audio input signal is a signal transmitted electromagnetically, in particular wirelessly, to the hearing device.
  • the audio signal input includes in particular an antenna for wireless reception of the audio input signal.
  • the antenna is one that is designed for a frequency range of about 2.4 GHz.
  • the audio signal input comprises, for example, a jack plug socket, a cinch socket or the like for receiving an audio cable for the wired transmission of the audio input signal.
  • the hearing device is set up to openly supply the user's hearing.
  • the hearing device in particular comprises an open earpiece, for example a so-called "open dome” or an earmold with a ventilation bore, through which airborne sound from the environment can penetrate to the eardrum of the user of the hearing device.
  • the hearing device can also be formed by a ventilated module, which is designed to be worn in the auditory canal.
  • the hearing device in the latter case is a so-called in-the-ear (“ITE”) hearing aid.
  • ITE in-the-ear
  • Fig. 1 is as a hearing by way of example a hearing aid (briefly referred to as "hearing aid” 1) shown.
  • the hearing device 1 comprises two microphones 2 and a signal processor 3.
  • the two microphones 2 are each designed to generate a microphone signal S M from an ambient sound (ie from noise from the environment of the hearing device 1).
  • the signal processor 3 is set up to under execution of stored signal processing algorithms the respective microphone signal S M or possibly a signal combined by a mixture of both microphone signals S M depending on user-specific settings (also referred to as “parameters”) frequency selectively increase, attenuate, filter, etc. and thereby an output signal S A. to create.
  • the latter is output by the signal processor 3 to a loudspeaker 4 of the hearing aid 1.
  • the loudspeaker 4 is set up to convert the output signal S A into airborne sound.
  • the airborne sound is then output to the eardrum of a user using the hearing aid 1 by means of a sound tube 5 and an ear piece 6 which adjoins the sound tube 5 on the free end side.
  • the earpiece 6 in this case has a plurality of openings 7, through which airborne sound from the environment of the hearing aid 1 can also penetrate through the ear canal to the eardrum of the user. Consequently, the hearing aid 1 is set up to openly supply the user's hearing.
  • the hearing aid 1 also includes an audio signal input 8, which is also connected to the signal processor 3.
  • the audio signal input 8 is used to receive and forward an audio input signal S E to the signal processor 3.
  • the audio input signal S E is a separate signal from the microphone signals S M , the signal from an external source to the hearing aid 1 is provided.
  • the audio signal input 8 includes an antenna for wireless reception of the audio input signal S E in a manner not shown here.
  • the audio input signal S E is, for example, a sound signal of a television set on which the user of the hearing device 1 is currently watching television.
  • the audio input signal S E is also called a "streaming signal".
  • the use of such an audio input signal S E has the advantage that influences of the sound due to the acoustic transmission path (for example, the television set side speakers, the acoustics of the room, etc.) can be avoided.
  • the sound information of the audio input signal S E for example, other people (who watch TV together with the user) is also provided acoustically
  • the information of the wirelessly transmitted audio input signal S E in the user's ear is superimposed with the audio information of the acoustic output of the television set that reaches the eardrum acoustically via the openings 7 of the earpiece 6, possibly positive and / or negative Interferences are formed. This is known to lead to a deterioration of the sound quality in the ear of the user.
  • the signal processor 3 (software or circuit technology) is set up on the basis of Fig. 2 perform method described in more detail.
  • a first method step 20 the reception of the (external) audio input signal S E via the audio signal input 8 is detected.
  • the audio input signal S E is compared with the microphone signal S M (or the signal combined from the two microphone signals S M ) by means of a cross-correlation function.
  • a maximum of the cross-correlation function is determined and compared with a stored in the signal processor 3 threshold. In the event that the maximum exceeds the threshold, a sufficient (or significant) similarity of the audio input signal S E is detected with the microphone signals S M.
  • the decision is made in a decision step 40 that 50 low-frequency signal components of the external audio input signal S E are attenuated in a subsequent signal processing step. Because above all low-frequency components of the ambient sound pass through the openings 7 through the eardrum of the user and thus lead just in this low-frequency area to undesirable overlays.
  • the decision is made in the decision step 40, in a downstream signal processing step 60 no additional attenuation of low-frequency signal components of the audio input signal S E to make.
  • the audio input signal S E is used in this case over its full bandwidth for generating the output signal S A.
  • the user of the hearing device 1 is requested to input into the hearing device 1 whether he wishes or not the additional attenuation of the low-frequency signal components described above.
  • the signal processing according to the signal processing step 50 or 60 is subsequently selected based on the decision of the user.
  • the user of the hearing aid 1 is asked to indicate whether the information of the audio input signal S E is also present acoustically. Specifically, the user should specify whether the sound output, for example, of the television is "only" streamed onto his hearing aid 1 or whether an acoustic output also takes place via the loudspeakers of the television set. Accordingly, in decision step 40, the additional attenuation according to the signal processing step 50 is selected when streaming and audible output are present together. Otherwise, ie if the audio input signal S E is exclusively streamed, the signal processing takes place according to the signal processing step 60.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Neurosurgery (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Headphones And Earphones (AREA)
  • Circuit For Audible Band Transducer (AREA)
EP18151927.3A 2017-02-16 2018-01-16 Procédé de fonctionnement d'un dispositif auditif et dispositif auditif Withdrawn EP3364668A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017202480.1A DE102017202480A1 (de) 2017-02-16 2017-02-16 Verfahren zum Betrieb einer Hörvorrichtung und Hörvorrichtung

Publications (1)

Publication Number Publication Date
EP3364668A1 true EP3364668A1 (fr) 2018-08-22

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EP18151927.3A Withdrawn EP3364668A1 (fr) 2017-02-16 2018-01-16 Procédé de fonctionnement d'un dispositif auditif et dispositif auditif

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US (1) US20180234775A1 (fr)
EP (1) EP3364668A1 (fr)
DE (1) DE102017202480A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK3373603T3 (da) * 2017-03-09 2020-09-14 Oticon As Høreanordning, der omfatter en trådløs lydmodtager
CN114731477A (zh) * 2019-11-18 2022-07-08 科利耳有限公司 声音捕获系统退化识别

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000134698A (ja) * 1998-10-29 2000-05-12 Matsushita Electric Ind Co Ltd テレビ用補聴装置
EP2182741A1 (fr) * 2008-10-28 2010-05-05 Siemens Medical Instruments Pte. Ltd. Dispositif auditif doté d'une unité de reconnaissance de situation spéciale et procédé de fonctionnement d'un dispositif auditif
US20120114155A1 (en) * 2010-11-04 2012-05-10 Makoto Nishizaki Hearing aid
EP2822300A1 (fr) * 2013-07-02 2015-01-07 Siemens Medical Instruments Pte. Ltd. Reconnaissance de situations d'écoute à l'aide de différentes sources de signal

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
US7940945B2 (en) * 2006-07-06 2011-05-10 Phonak Ag Method for operating a wireless audio signal receiver unit and system for providing hearing assistance to a user
DE102006059138B4 (de) 2006-12-14 2010-09-09 Siemens Audiologische Technik Gmbh Hörhilfe- und/oder Gehörschutzgerät mit einem Audio-Eingang
US8184816B2 (en) * 2008-03-18 2012-05-22 Qualcomm Incorporated Systems and methods for detecting wind noise using multiple audio sources
US8649538B2 (en) * 2010-02-10 2014-02-11 Audiotoniq, Inc. Hearing aid having multiple sound inputs and methods therefor
DE102011075006B3 (de) 2011-04-29 2012-10-31 Siemens Medical Instruments Pte. Ltd. Verfahren zum Betrieb eines Hörgerätes mit verringerter Kammfilterwahrnehmung und Hörgerät mit verringerter Kammfilterwahrnehmung
DE102012202469B3 (de) * 2012-02-17 2013-01-17 Siemens Medical Instruments Pte. Ltd. Hörvorrichtung mit einem adaptiven Filter und Verfahren zum Filtern eines Audiosignal
EP3291580A1 (fr) * 2016-08-29 2018-03-07 Oticon A/s Dispositif d'aide auditive ayant une fonctionnalite de commande vocale

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000134698A (ja) * 1998-10-29 2000-05-12 Matsushita Electric Ind Co Ltd テレビ用補聴装置
EP2182741A1 (fr) * 2008-10-28 2010-05-05 Siemens Medical Instruments Pte. Ltd. Dispositif auditif doté d'une unité de reconnaissance de situation spéciale et procédé de fonctionnement d'un dispositif auditif
US20120114155A1 (en) * 2010-11-04 2012-05-10 Makoto Nishizaki Hearing aid
EP2822300A1 (fr) * 2013-07-02 2015-01-07 Siemens Medical Instruments Pte. Ltd. Reconnaissance de situations d'écoute à l'aide de différentes sources de signal

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US20180234775A1 (en) 2018-08-16

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