EP2897383B1 - Verfahren und Vorrichtung zur Analyse von Hörhilfeeinstellungen - Google Patents

Verfahren und Vorrichtung zur Analyse von Hörhilfeeinstellungen Download PDF

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Publication number
EP2897383B1
EP2897383B1 EP15150281.2A EP15150281A EP2897383B1 EP 2897383 B1 EP2897383 B1 EP 2897383B1 EP 15150281 A EP15150281 A EP 15150281A EP 2897383 B1 EP2897383 B1 EP 2897383B1
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EP
European Patent Office
Prior art keywords
hearing aid
aid device
acoustic
signal
acousto
Prior art date
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Active
Application number
EP15150281.2A
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German (de)
English (en)
French (fr)
Other versions
EP2897383A1 (de
Inventor
Matthias Fröhlich
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
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Sivantos Pte Ltd
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Publication of EP2897383A1 publication Critical patent/EP2897383A1/de
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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
    • H04R25/30—Monitoring or testing of hearing aids, e.g. functioning, settings, battery power
    • 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
    • H04R25/70—Adaptation of deaf aid to hearing loss, e.g. initial electronic fitting

Definitions

  • the present invention relates to a method and a device for individually setting a hearing aid device for a hearing aid wearer.
  • a hearing-impaired person becomes accustomed to the transmission characteristics of the hearing aid and thus to the sound of this hearing system, for example. For example, if he needs a new device because of hearing loss, he often feels the unfamiliar sound as foreign and rejects a new hearing system. This rejection is particularly prevalent in modern hearing systems, as these are often due to the advances in digital technology very smooth frequency responses can be realized. For this reason, a follow-up care often used instead of a modern hearing system, the same type of already worn hearing aid. This does not improve the hearing-impaired and does not benefit from the further development of hearing systems.
  • the data from the old hearing aid device it is necessary either to have the data from the old hearing aid device available, or to read it from the hearing aid to be able to interpret it.
  • the characteristics of the old hearing aid can also be measured.
  • an acoustic measuring device can be used, which however places high demands on the acoustic environment, the test signal source and the acoustic measuring sensor.
  • the object of the present invention is therefore to simplify the setting of a hearing aid device, taking into account a setting of any other hearing aid device.
  • the object of the invention is achieved by the method of claim 1 and the apparatus of claim 7.
  • the method of claim 1 simplifies an analysis of hearing aid device settings of a first hearing aid device by using a second hearing aid device to determine the characteristics of the first hearing aid device.
  • the first hearing aid and the second hearing aid each have an acousto-electric converter and an electro-acoustic transducer.
  • the method comprises the step of acoustically coupling the electro-acoustic transducer of the first hearing aid with the acousto-electrical transducer of the second hearing aid with a coupling agent.
  • acoustically coupled is meant that sound waves from the electro-acoustic transducer of the first hearing aid to the acousto-electric transducer of the second hearing aid can arrive in a predetermined and predictable way.
  • the first and / or second hearing aid device have a plurality of acousto-electrical converter.
  • the acousto-electrical converter of the first hearing aid is sonicated with an acoustic test signal and detects an acoustic output signal of the electro-acoustic transducer of the first hearing aid by means of the acousto-electrical transducer of the second hearing aid.
  • the detected acoustic signal can be provided by the acousto-electrical converter of the second hearing aid device, for example as an analog or digital electrical signal.
  • the detected acoustic output signal is evaluated. The evaluation can be done for example by comparison or processing by means of an algorithm with the known test signal.
  • the method according to the invention advantageously utilizes the acousto-electrical converter or the microphone of the second hearing aid device as the measuring sensor, as a result of which the expenditure on apparatus for carrying out the method can be reduced.
  • the object is achieved by means of the device according to the invention of claim 7, which is designed in particular for carrying out the method.
  • the device for analyzing a hearing aid setting of a first hearing aid by means of a second hearing aid has a coupling means for acoustically coupling an electro-acoustic transducer of a first hearing aid to an acousto-electrical transducer of a second hearing aid.
  • the coupling means is designed so that sound waves can pass from the electro-acoustic transducer of the first hearing aid to the acousto-electrical transducer of the second hearing aid in a predetermined and predictable manner. This can be done, for example, through a room that tightly encloses both converters.
  • the first and / or second hearing aid device have a plurality of acousto-electrical converter.
  • the device has an analysis device which is designed to receive and analyze a signal with information from the acousto-electrical converter from the second hearing aid device.
  • the connection can be made for example by an electrical signal connection, but also by electromagnetic fields or other wireless transmission techniques.
  • the device can be designed, for example, to compare the signal with information from the acousto-electrical converter with a known test signal or to process it with an algorithm.
  • the analysis device can be designed to be connectable to the second hearing aid device, for example as part of a controller, or as part of or functionality of the signal processing device of the second hearing aid device.
  • the device according to the invention shares the advantages of the method according to the invention.
  • the acoustic test signal is generated by an electro-acoustic transducer.
  • An electroacoustic transducer makes it possible in a simple manner to produce a reproducible test signal with predetermined properties.
  • the acoustic test signal is an ambient noise.
  • the method further comprises the step of detecting the test signal by means of an acousto-electrical reference transducer.
  • the evaluation of the detected acoustic input signal takes place at least partially in the second hearing aid device.
  • the at least partial evaluation of the detected acoustic input signal in the second hearing aid device advantageously utilizes the signal processing resources present in the hearing aid device and reduces the effort in an external analysis device. It would even be conceivable that the entire analysis process is performed by the hearing aid.
  • the method of analysis is part of a method for adopting a hearing aid setting from a first hearing aid to a second hearing aid.
  • the method for adopting additionally comprises the step of setting a parameter for the second hearing aid based on the evaluation of the detected acoustic output to investigate. It is also possible that several or all setting parameters of the second hearing aid are determined. Finally, the parameter (s) of the second hearing aid will be adjusted based on the determined adjustment parameter.
  • the method according to the invention for adopting a hearing aid setting advantageously makes it possible to take into account deviations of the microphone of the second hearing aid from the ideal characteristic values in the determination of the setting parameters by analyzing signals from the microphone of the hearing aid and thus to carry out the setting with higher accuracy.
  • the adjustment of the second hearing aid by an operator.
  • the setting of the second hearing aid device takes place via a signal connection to the second hearing aid device.
  • this has a signal source for generating an acoustic test signal.
  • the signal source advantageously enables reproducible and predetermined acoustic signals for analysis to provide the setting of the first hearing aid.
  • this has an acousto-electrical reference transducer for receiving the acoustic test signal.
  • the device can record the test signal in a predetermined and reproducible manner and provide it for comparison with the signal of the second hearing aid or for joint processing.
  • the device according to the invention is therefore not dependent on using a few predetermined test signals, but it can also be used, for example, a familiar hearing environment of a hearing aid wearer for analysis.
  • the device further comprises a determination device which is designed to determine a setting parameter for the second hearing aid device from a result of the analysis device in such a way that a transfer function of the second hearing aid device is approximated using the adjustment parameter of a transfer function of the first hearing aid device.
  • the acoustic behavior of the second hearing device is changed so that the measurable and / or perceptible by a carrier acoustic properties are less different from the measured or perceived acoustic properties of the first hearing aid. Ideally, even an equal or indistinguishable behavior for the wearer can be achieved.
  • the wearer has the same hearing when switching from the first hearing aid to the second hearing aid and accepts the new device.
  • this further comprises an adjustment device which is designed to set the adjustment parameter in the second hearing aid device.
  • the setting device it is also possible for the setting device to be designed to change several or all setting parameters of the second hearing aid by the setting device.
  • the device according to the invention can make an adjustment of the second hearing aid device as quickly and without transmission error.
  • the coupling means is a passive mechanical adapter which connects the first hearing aid device to the second hearing aid device in an acoustically defined manner.
  • the coupling means may be formed for example in the form of a hollow body having an interior, in which both the electro-acoustic transducer of the first hearing aid and the acousto-electrical converter of the second hearing aid are or are in fluid exchange with this.
  • the interior of the coupler is closed by walls of the coupler and the housing of the hearing aid from the environment substantially fluid-tight, so that ambient noise can penetrate only with high attenuation of, for example, 40, 60, 80 or more decibels in the interior of the coupler.
  • the coupling means makes it possible to easily direct the output signals of the first hearing aid to the microphone or the microphones of the second hearing aid to analyze its characteristics traceable and undisturbed.
  • the Fig. 1 schematically shows a hearing aid 1, as it can be used both as the first hearing aid 31, the settings of which should be adopted by the method according to the invention to a different second hearing aid 32, or as a second hearing aid 32 to be adjusted.
  • the hearing aid device 1 has a housing 10, in which one or more microphones 11 are arranged, so that they can absorb sound waves from an environment of the hearing aid device 1. Furthermore, in the housing 10 there is a signal processing device 12, which receives the sound waves converted by the microphones 11 into electrical signals for further processing.
  • the processing by the signal processing device 12 is, for example around the usual in Hearing Aids function such as frequency-dependent amplification. However, more complex signal processing functions are also conceivable, such as the formation of directional effects with signals of several microphones or filtering of interfering noises. In a binaural hearing aid system, a binaural signal processing is also conceivable.
  • the housing 10 there is a receiver 13, which receives the electrical signal processed by the signal processing device 12 and converts it into acoustic sound waves, which are emitted into the environment outside the housing 10.
  • the power supply is effected by a battery or an accumulator 14, which is likewise arranged in the housing 10.
  • At least the second hearing aid device 32 also has an interface 15, via which it is in signal connection 38 with a controller 36, see Fig. 3 and 4 can occur.
  • the hearing aid device 31, 32 is designed to transmit sound waves received via the microphone 11 to the control 36 as analogue or digital acoustic signals or as signals derived therefrom.
  • a hearing aid 1 and the Fig. 2 to 4 is shown as a hearing aid 1, 31, 32 each have a behind-the-ear hearing aid.
  • the method according to the invention can also be used with a suitable coupling means 20 for in-the-ear, in-the-canal, earpiece-in-the-canal or other hearing aid devices. It is also conceivable that the method for transmitting settings from a behind-the-ear hearing aid to an in-the-ear hearing aid is used. All that is necessary is that the first hearing aid device 31 has a handset 13 and the second hearing aid device 32 has a microphone 11.
  • the acoustic signal could also pass via an induction coil 16 from the controller 36 into the first hearing aid device 31.
  • Fig. 2 schematically shows an inventive acoustic coupling of a first hearing aid device 31 and a second hearing aid device 32 for carrying out the method according to the invention.
  • the representation is not to scale.
  • the coupling means 20 is designed as a shoe or hose, which at least partially accommodates the first hearing aid device 31 and the second hearing aid device 32.
  • the first hearing aid device 31 and the second hearing aid device 32 is at least the opening through which the first hearing aid 31 emits the sound generated by the listener 13 to the environment, in an interior 25 of the coupling means 20.
  • the situation is exactly the opposite with the second hearing aid device 32, whose microphone or microphones 11 are in fluid communication with the interior 25 and can receive sound waves from the interior 25.
  • the handset 11 of the second hearing aid device is not in fluid communication with the interior 25, so that the or the microphones 11 of the second hearing aid 32 are substantially acoustically isolated from the listener 13, except for possible sound conduction through the hearing aid itself.
  • the handset 13 of the second hearing aid device 32 is acoustically isolated from the microphone or microphones 11 of the first hearing aid device 31. It would be conceivable that on the coupling means 20 for this purpose, a closed chamber or a conclusion for the housing 21 is formed, which ensures the acoustic decoupling.
  • a sealing means 22 is disposed at the common boundary to the environment, that ensures that the interior 25 of the coupling means 20 by its outer wall, the sealing means 22 and the housings 10 is fluid-tight or acoustically separated from the environment. If the coupling means 20 itself is made of an elastic material, the sealing means 22 can also be dispensed with.
  • the coupling means 20 may for example be made of two half-shells 21, which can be separated for insertion of the hearing aid devices 31, 32.
  • a sealing means may again be provided.
  • the half shells 21 may be formed separately and held by a retaining means, e.g. a clip closure, an outer frame, an elastic strap or just a rubber band are held together. But it is also conceivable that the two half-shells are connected by a hinge or hinge.
  • the half shells 21 preferably have structures 23 which are suitable for fixing the first and / or second hearing aid device 31, 32 in their position relative to the coupling means 20.
  • the coupling means 20 may also be made of an elastic material as a tube or sleeve, so that the first hearing aid 31 is inserted from one end and the second hearing aid from the opposite end.
  • the sealing means 22 is thereby reshaped to the outer contours of the hearing aid devices, so that after insertion, the relative position of the hearing aid devices to each other in a predetermined arrangement and the sealing effect between the interior 25 and the environment is achieved.
  • the interior space 25 has damping properties, so that the acoustic coupling between the first hearing aid device 31 and the second hearing aid device 32 has as few or no resonances as possible and a transfer function is approximately linear. Damping properties can be achieved in one embodiment by a soft and possibly on the interior facing side porous material. Also conceivable are burrs or other surface structures which diffusely reflect and prevent the formation of a resonance.
  • a volume of the inner space 25 is comparable to a volume between the handset 13 of the first hearing aid 32 and a tympanic membrane in an auditory canal of a wearer, so that the acoustic properties of the handset are reproduced in the auditory canal.
  • the volume of the interior may be, for example, 1 cm 3 , 0.5 cm 3 or 0.25 cm 3 .
  • the distance between the first hearing aid device 31 and the second hearing aid device may be, for example, 10 mm, 5 mm or 3 mm.
  • Fig. 3 shows a conceivable device 30 for carrying out the method according to the invention.
  • the device 30 has a controller 36 which is designed to output a test signal via a first signal connection 37 and to receive results via a second signal connection 38 with the second hearing aid device 32 and also to make adjustments to the second hearing aid device.
  • the first hearing aid device 31 and the second hearing aid device 32 are acoustically coupled to each other, arranged in a test room 35. Furthermore, located in the test room 35 is a sound source 33, which is controlled by the controller 36 via the signal connection 37 outputs a test signal acoustically.
  • the signal connection 37 may be an analog electrical line which is connected to a DA converter of the control unit. Also conceivable are digital connections for audio signal transmission such as TOS-LINK, HDMI, USB or wireless as Bluetooth. In the field of audiology, HI-PRO is also used as a programming interface.
  • the test chamber 35 is designed to reduce external noise and a possible frequency-neutral propagation allow the test signal in its interior.
  • a test room can be a sound-deadening room, but also a small measuring box, which essentially only provides space for the hearing aids 31, 32, the coupling means 20 and the sound source 33. In a suitable environment without noise, the test room 35 but also omitted.
  • Fig. 4 shows another possible device (30) for carrying out the method according to the invention.
  • the main difference too Fig. 3 it is that instead of the controlled by the controller 36 sound source 33 another possibly natural sound source occurs.
  • a speaker is shown here, who is representative of natural sounds from the environment of a hearing aid wearer.
  • a microphone 34 is provided with predetermined known properties in this embodiment, which receives the signal of the sound source parallel to the first hearing aid 31.
  • the device off Fig. 4 is located in a test room 35.
  • the controller 36 is a portable device such as a portable computer, to carry out the method according to the invention in the familiar hearing environment of the hearing aid wearer.
  • Fig. 5 shows a schematic flowchart of a possible embodiment of the method according to the invention.
  • a step S10 the electro-acoustic transducer of the first hearing aid device 31 is acoustically coupled to the acousto-electrical transducer 32 of the second hearing aid device by means of the coupling means 20, as is the case Fig. 2 is described.
  • the microphones 11 are the acousto-electrical converters and the listeners 13 are the electrical-acoustic transducers.
  • acousto-electrical converter of the first hearing aid device 13 is sonicated with an acoustic test signal.
  • the microphone 11 of the first hearing aid device 31 converts the sound waves into an electrical signal which is frequency-dependent amplified and filtered by the signal processing device 12 in accordance with the settings of the first hearing aid device 31.
  • the resulting electrical signal is converted by the receiver 13 into a sound wave and emitted into the interior 25 of the coupling means 20.
  • acoustic output signal of the electro-acoustic transducer or the handset 13 of the first hearing aid device 31 is detected by means of the acousto-electrical transducer or the microphone 11 of the second hearing aid device 32
  • a step S40 the detected acoustic output signal is evaluated.
  • the evaluation can take place in the controller 36, which has the analysis device as a subunit or provides the functionality of the analysis device.
  • the detected output signal is transmitted digitally via the signal connection 38 analogously or after an A / D conversion.
  • signal connection 37 a multiplicity of signal connection types can be used in this case.
  • the evaluation takes place in the controller 36 by comparing the test signal with the detected output signal. This may be, for example, a comparison of the levels in different frequency bands after a Fourier transform to determine the frequency-dependent gain. Also conceivable is the acquisition of time-dependent control constants, which can be determined by rapidly changing test signals.
  • the test signal can either be as in Fig. 3 generated by the controller 36 and therefore be known, or as in Fig. 4 be detected in parallel with the output signal.
  • the signal processing device 12 of the second hearing aid device 32 is designed to perform the analysis itself or at least in sub-steps.
  • the signal processing device 12 already carries out a Fourier transformation and notifies the controller 36 of the amplitudes in the individual frequency bands.
  • the signal processing device 12 has the analysis device as a subunit or provides the functionality of the analysis device.
  • the latter furthermore has the step S50 of determining a setting parameter for the second hearing aid device on the basis of the evaluation of the detected acoustic output signal. For example, from the determined frequency-dependent amplitudes, the controller 36 can determine a parameter set for a frequency-dependent gain for the second hearing aid 32 with which this generates the desired output characteristic at constant input amplitude, for example by normalizing the frequency-dependent amplitudes of the detected output signal with frequency-dependent amplitudes of the input signal.
  • a step S60 of setting the second hearing aid device is also provided on the basis of the determined setting parameter. It is conceivable that the controller 36 makes an adjustment of the hearing aid via the signal line 38. This is particularly simple if the controller 36 is a fitting device that is otherwise provided for adjusting hearing aids. This can for example be provided with a HI-PRO interface.
  • the adjustment of the parameters on the second hearing aid device takes place manually by an operator, for example if the second hearing aid device has no or no compatible programming interface.

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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)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
EP15150281.2A 2014-01-16 2015-01-07 Verfahren und Vorrichtung zur Analyse von Hörhilfeeinstellungen Active EP2897383B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014200677.5A DE102014200677A1 (de) 2014-01-16 2014-01-16 Verfahren und Vorrichtung zur Analyse von Hörhilfeeinstellungen

Publications (2)

Publication Number Publication Date
EP2897383A1 EP2897383A1 (de) 2015-07-22
EP2897383B1 true EP2897383B1 (de) 2017-08-02

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EP15150281.2A Active EP2897383B1 (de) 2014-01-16 2015-01-07 Verfahren und Vorrichtung zur Analyse von Hörhilfeeinstellungen

Country Status (5)

Country Link
US (1) US9538294B2 (zh)
EP (1) EP2897383B1 (zh)
CN (1) CN104796835B (zh)
DE (1) DE102014200677A1 (zh)
DK (1) DK2897383T3 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3120578B2 (en) * 2014-03-19 2022-08-17 Bose Corporation Crowd sourced recommendations for hearing assistance devices

Family Cites Families (6)

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Publication number Priority date Publication date Assignee Title
ES2289373T3 (es) 2003-02-27 2008-02-01 Siemens Audiologische Technik Gmbh Dispositivo y procedimiento para ajustar un audifono.
DK1416764T3 (da) * 2003-12-09 2008-06-30 Phonak Ag Fremgangsmåde til indstilling af parametre af et höreapparat og en anordning til udövelse af fremgangsmåden
DE102007039185A1 (de) 2007-08-20 2009-02-26 Siemens Medical Instruments Pte. Ltd. Verfahren und Vorrichtung zur Einstellung eines Hörgerätes
EP2071874B1 (en) * 2007-12-14 2016-05-04 Oticon A/S Hearing device, hearing device system and method of controlling the hearing device system
EP2247119A1 (de) * 2009-04-27 2010-11-03 Siemens Medical Instruments Pte. Ltd. Vorrichtung zum akustischen Analysieren einer Hörvorrichtung und Analyseverfahren
US9288584B2 (en) * 2012-09-25 2016-03-15 Gn Resound A/S Hearing aid for providing phone signals

Non-Patent Citations (1)

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Also Published As

Publication number Publication date
DK2897383T3 (da) 2017-11-13
EP2897383A1 (de) 2015-07-22
CN104796835B (zh) 2019-07-23
DE102014200677A1 (de) 2015-07-16
US20150201285A1 (en) 2015-07-16
CN104796835A (zh) 2015-07-22
US9538294B2 (en) 2017-01-03

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