EP1416764B1 - Procédé d'établissement des paramètres d'une prothèse auditive et dispositif pour la mise en oeuvre du procédé - Google Patents
Procédé d'établissement des paramètres d'une prothèse auditive et dispositif pour la mise en oeuvre du procédé Download PDFInfo
- Publication number
- EP1416764B1 EP1416764B1 EP20030028311 EP03028311A EP1416764B1 EP 1416764 B1 EP1416764 B1 EP 1416764B1 EP 20030028311 EP20030028311 EP 20030028311 EP 03028311 A EP03028311 A EP 03028311A EP 1416764 B1 EP1416764 B1 EP 1416764B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hearing
- hearing device
- hearing aid
- signal
- microphone
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 28
- 238000012360 testing method Methods 0.000 claims description 25
- 238000005259 measurement Methods 0.000 claims description 18
- 230000001131 transforming effect Effects 0.000 claims 1
- 230000008878 coupling Effects 0.000 description 12
- 238000010168 coupling process Methods 0.000 description 12
- 238000005859 coupling reaction Methods 0.000 description 12
- 230000006835 compression Effects 0.000 description 10
- 238000007906 compression Methods 0.000 description 10
- 230000006978 adaptation Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 206010011878 Deafness Diseases 0.000 description 1
- 208000032041 Hearing impaired Diseases 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 238000000527 sonication Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- H04R29/00—Monitoring arrangements; Testing arrangements
- H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
Definitions
- the present invention relates to a method for adjusting a hearing aid and to an apparatus for carrying out the method.
- a tone audiogram is used as the basis for the new hearing aid setting.
- the actual desired setting of the hearing aid parameters - such as gain, compression, limitation, knee point or time constant - often deviates very much from the audiogram-based preset.
- the need for amplification may deviate up to 20 dB from the target gain precalculated according to the audiogram.
- a different basis of presetting than the audiogram alone is desirable.
- the present invention is therefore based on the object of specifying a simple and efficient method for setting a first hearing device based on settings of a second hearing device.
- the invention has the following advantages: in that a predefined measuring signal is applied to a microphone of a hearing device which is adapted to a specific hearing aid wearer and in that an acoustic signal generated by a listener of this hearing aid is recorded and recorded in a hearing aid to be adjusted, wherein settings in a new hearing aid due to results of the Evaluation are made in the evaluation, a particularly suitable method for Movanpassung the new hearing aid is created.
- the method according to the invention very quickly leads to a spontaneous acceptance of the newly set hearing device in the case of the hearing aid wearer and considerably reduces the fitting outlay compared with the methods used today. In addition, the acoustician needs less time for initial adaptation.
- Fig. 1 is a control unit 1, an existing hearing aid 2, which is set to a specific hearing aid wearer and is referred to below as a second hearing aid, and another hearing aid 3 shown, which is operatively connected to the second hearing aid 2 and is referred to below as the first hearing aid.
- the control unit 1 which for example a commercially available PC (personal computer), consisting essentially of input / output unit and arithmetic unit, a fitting program (fitting software program) is processed, which allows the acoustician as simple and quick hearing aid adaptation to a specific hearing aid wearer.
- PC personal computer
- control unit 1 on the one hand with a loudspeaker 6, by means of which acoustic test signals 20 can be generated, on the other hand connected via the connecting line 7 with the first hearing aid 3, which is equipped as usual with a microphone 3a and a receiver 3b.
- the first hearing device 3 has an audio input 10, via which an audio signal can be supplied.
- the second hearing device 2 likewise has a microphone 2a and a receiver 2b, the latter being completely covered by a coupling element 5, so that a closed cavity is created. In this cavity also a measuring microphone 4 is arranged, whose signal is applied to the audio input 10 of the first hearing aid 3.
- a known coupling element for use in the present invention is described, for example, in Phonak Focus No. 20 entitled “ The Desired Sensation Level (DSL) Method for Hearing Aid Fitting Infants and Children "(Richard C. Seewald, 1995 ).
- DSL Desired Sensation Level
- the object of the present invention is to provide a hearing aid setting for to find the first hearing aid 3, which is as similar as possible to that of the second hearing aid 2.
- This first hearing aid setting is then ideally suited as a starting point for further fine adjustments and optimizations of the hearing aid settings.
- the first hearing device 3 can be brought into a so-called measurement mode at the beginning of the adaptation, in which the transmission properties of the second hearing device 2 are analyzed and transmitted to the control unit 1.
- the adaptation software executed in the control unit 1 transforms the information obtained into a parameter set which can be understood by the first hearing device 3. Incidentally, the entire sequence of the setting of the first hearing device 3 is controlled or monitored by the fitting software. Likewise, any instructions or error messages on the control unit 1 are displayed to the acoustician.
- control unit 1 for example, a so-called sound card is used to drive the loudspeaker 6, as used in conventional personal computers.
- the second hearing device 2 is coupled to the coupling element 5 having a known transmission characteristic, which contains the measuring microphone 4, preferably in the form of a probe microphone (corresponding to IEC Standard 126 2cc coupler HA-1 for ITE (In -The-Ear) hearing aids or HA-2 for BTE (Behind-the-Ear) hearing aids).
- the signal of the measuring microphone 4 is fed via the audio input 10 into the first hearing device 3 and analyzed therein.
- a filter bank which is present in the first hearing device 3 and which is used for signal processing during normal operation of the hearing aid can be used.
- the microphone 3a of the first hearing device 3 picks up the sound of the loudspeaker 6 and serves as a reference microphone for determining the volume or sound level and for controlling the sound presentation via the control unit 1.
- This also creates the possibility that a calibration of the first hearing aid 3 can be made.
- the two hearing aids 2 and 3 should be close together so that the same sound field is present.
- the adaptation of the first hearing device 3 can be made optimally if no acoustic interference signals can be picked up by the microphones 2a and 3a.
- the whole arrangement is located in a sound-deadened room.
- noise is detected by a corresponding algorithm in the control unit 1, whereby erroneous measured values can be eliminated (artefact rejection).
- acoustic test signals 20 such as white noise at different levels.
- test signals but also sinusoidal or sinusoidal signals, wobble tones, natural language or music are conceivable.
- transient test signals 20 e.g., level jumps
- the temporal behavior such as the time constant of the compression.
- the first hearing device 3 can now be set so that the transfer functions of the first and second hearing devices 3 and 2 become as similar as possible.
- the second hearing device 2 to be measured can be any hearing device.
- the "new" first hearing device 3 has a frequency resolution and an audio input 10, to which a simple coupling of the measuring microphone 4 is possible.
- the measurement is carried out in as quiet a room as possible - which incidentally is also necessary for the measurement of the feedback threshold of a hearing device or the hearing threshold of the hearing impaired person.
- the conditions at the space required for the measurements in an acoustician are therefore already readily met.
- the second hearing aid 2 is connected to the coupling element 5, which is for example a so-called 2cc coupler.
- the 2cc coupler is defined according to standard IEC 126 (see above literature by Richard C. Seewald), although other couplers can be used as long as a defined volume with appropriate coupling is present. A conversion to standardized 2cc values is then possible at any time.
- an adapter with a channel for a probe tube is inserted into the coupling element 5.
- the actual measuring microphone 5 forms, for example, a RECD (Real-Ear-to-Coupler Difference) - direct audio shoe (see again IEC 126 and the literature cited by Richard C. Seewald), whose probe tube protrudes into the 2cc volume via the adapter.
- RECD Real-Ear-to-Coupler Difference
- the first and the second hearing device 2 and 3 are placed on a smooth surface so that the microphones 2a and 3a of the two hearing aids 2 and 3 are close to each other.
- the loudspeaker 6 used for sonication with test signals 20 is, for example, approximately 50 cm away from the microphones 2a and 3a.
- ICRA noises Artificial noise signals with speech-like spectral and temporal properties for hearing aid assessment "(Audiology, Vol. 40, No. 3, May-June, 2001, pp. 148-157 ) contain.
- the test signals 20 are given to the loudspeaker 6 via the sound card of the personal computer operating as the control unit 1.
- a stationary white noise is reproduced as a test signal 20 via the loudspeaker 6.
- Input level averaging means present in the first hearing device 3 are read out and, if appropriate, the reproduction is corrected spectrally and in terms of level, provided that no excessive changes are necessary. Otherwise, the acoustician is informed that the speaker quality is insufficient. If a spectral correction via the control unit 1 is not possible, the method can nevertheless be carried out. However, the informative value of the results is somewhat limited.
- the spectral background level in the test room is determined using the same method. If it is so high that a meaningful measurement is not possible, the acoustician, for example via the control unit 1, informed accordingly.
- a first measurement consists for example in that a modulated test noise (see above) is reproduced via the loudspeaker 6 in succession as the acoustic test signal 20 with the levels 50, 65 and 80 dB.
- the reproduction of the second hearing device 2 to be measured is detected by means of the measuring microphone 4. This reproduction is representative of the reproduction of modulated signals, e.g. Language.
- a second measurement consists, for example, in that over the loudspeaker 6 an unmodulated test noise (see above) is reproduced as an acoustic test signal 20 at 65 dB.
- the reproduction of the second hearing device 2 to be measured is detected. This reproduction is representative of stationary sound reproduction.
- the amount of noise reduction (noise canceling) is determined from the reproduction difference between the first and the second measurement.
- a third measurement may be that an unmodulated noise is reproduced via the loudspeaker 6 with a level jump of 25 dB in the middle of the signal (first 55 dB, then 80 dB and then 55 dB). From the response detected in the coupling element 5, the order of magnitude of the entry and release times can be determined.
- loudspeaker 6 becomes real speech or equivalent modulated test noise (see above) at 65 dB level output as acoustic test signal 20.
- the amplitude distribution of the recorded signal is evaluated and from this the effective dynamic compression and the time constants of the compression can be determined, which will be explained further below.
- the effective dynamic compression of a signal is determined as follows: First, one determines the dynamics of the input signal of a typical modulated signal, such as speech at 65 dB SPL. It results e.g. from the difference between the 10th and 95th percentile of the amplitude distribution. Now, the signal picked up by the microphone 2a and processed in the second hearing aid 2 is analyzed in the same way. The ratio of the dynamic range determined above to the dynamic range now obtained indicates the effective compression ratio of the signal processing from the second hearing aid 2.
- a typical modulated signal such as speech at 65 dB SPL. It results e.g. from the difference between the 10th and 95th percentile of the amplitude distribution.
- the signal picked up by the microphone 2a and processed in the second hearing aid 2 is analyzed in the same way.
- the ratio of the dynamic range determined above to the dynamic range now obtained indicates the effective compression ratio of the signal processing from the second hearing aid 2.
- the time constants of the compression control can be determined on the other side as follows:
- the results of the first measurement are used to set the input / output functions of the different channels.
- the difference between the second and the first measurement is used to adjust the amount of noise cancellation (noise canceling). If the time constants of the gain control belong to the fitting parameters, the third measurement can be used to set the settling times.
- the individual programs are activated one after the other in the second hearing device 2 to be measured and measured with the described method.
- the volume adjuster is preferably placed in the position to be measured, second hearing aid 2 in that position, which is suitable for listening ffenlauter sound.
- For digital hearing aids is this is usually the setting directly after switching on the hearing aid.
- the second hearing device 2 must additionally be sonicated with 90 dB.
- the method described is used.
- a 90 dB performance is usually uncomfortable for the acoustician and the hearing aid user.
- Fig. 2 shows a further embodiment of the invention, wherein these from the in Fig. 1 shown embodiment differs only in that the acoustic test signal 20 is generated by means of the first hearing aid 3.
- a further coupling element 50 between the second and the first hearing device 2 or 3 is necessary.
- the speaker 6 is required in this embodiment only for the mentioned calibration.
- the main processing of the signals is carried out - under the guidance of the control unit 1 - mainly in the first hearing aid 3.
- the various measurement methods that are associated with the in Fig. 1 illustrated embodiment, according to the embodiment according to Fig. 2 usable and therefore need no further explanation.
Claims (15)
- Méthode pour ajuster un premier appareil auditif (3) sur la base d'ajustements d'un second appareil auditif (2), comprenant les pas suivants:- convertissement d'un signal test acoustique (20) à l'aide d'un microphone (2a) d'un second appareil auditif (2) en un signal test électrique;- convertissement d'un signal acoustique (21) produit par l'écouteur (2b) dudit second appareil auditif (2) en un signal électrique,- analyser le signal électrique dans le premier appareil auditif (3), et- ajustements dans le premier appareil auditif (3) sur la base de résultats d'une analyse dans le premier appareil auditif (3).
- Méthode selon la revendication 1, où le signal test acoustique (20) est produit dans une unité de contrôle (1) prévue à l'extérieur des appareils auditifs (2,3).
- Méthode selon la revendication 1, où le signal test acoustique (20) est produit dans le premier appareil auditif (3).
- Méthode selon l'une des revendications 1 à 3, où l'analyse du signal électrique (21) est poursuivie dans une unité de contrôle (1) à l'extérieur des appareils auditifs (2,3).
- Méthode selon l'une des revendications 1 à 4, où le signal test acoustique (20) est alimenté simultanément à un microphone (3a) dudit premier appareil auditif (3) pour sa calibration.
- Méthode selon l'une des revendications précédentes, où l'on utilise comme signal test acoustique (20) un bruit stationnaire ou modulé par la voix.
- Méthode selon l'une des revendications 1 à 4, où l'on utilise comme signal test acoustique (20) un bruit non-modulé avec un bond de niveau de préférence de 25 dB.
- Méthode selon l'une des revendications précédentes, où l'on procède à l'ajustement du premier appareil auditif (3) dans tous les programmes audibles qui sont à disposition.
- Méthode selon l'une des revendications précédentes, où l'on ajuste pour le signal test acoustique (20) un niveau sonore entre 40 et 90 dB SPL.
- Installation pour la mise en oeuvre de la méthode selon l'une des méthodes des revendications 1 à 9, comprenant:- un premier appareil auditif (3) avec un micro (3a) et un écouteur (3b);- un second appareil auditif (2) avec un micro (2a) et un écouteur (2b);- ledit premier appareil auditif (3) pouvant être ajusté sur la base d'ajustements du second appareil auditif (2);- des moyens (1,6,3,3b) pour alimenter le micro (2a) du second appareil auditif (2) avec un signal test acoustique (20) ;- des moyens (4,5) pour transformer un signal acoustique (21) produit par l'écouteur (2b) du second appareil auditif (2) en un signal électrique, et- des moyens pour alimenter ledit premier appareil auditif (3) avec ledit signal électrique;- ledit premier appareil auditif (3) comprenant des moyens pour analyser ledit signal électrique et ledit premier appareil auditif (3) étant construit de telle manière que les ajustements peuvent être faits sur la base de résultats de ladite analyse.
- Installation selon la revendication 10, où une unité de contrôle (1) arrangée en dehors des appareils auditifs (2,3), l'unité étant opérativement connectée avec le premier appareil auditif (3).
- Installation selon la revendication 11, où un haut-parleur (6) qui est connecté avec l'unité de contrôle (1).
- Installation selon la revendication 10 ou 11, où le signal test acoustique (20) est alimenté en outre à un micro (3a) dudit premier appareil auditif (3).
- Installation selon une ou plusieurs des revendications 10 à 12, où un micro de mesure (4) pour recevoir le signal acoustique (21) produit par l'écouteur (2b) du second appareil auditif (2), ledit micro de mesure (4) étant relié audit premier appareil auditif (3).
- Installation selon une ou plusieurs des revendications 10 à 14, où un signal acoustique produit par le haut-parleur (6) est exclusivement alimenté au micro (3a) du premier appareil auditif (3).
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20030028311 EP1416764B1 (fr) | 2003-12-09 | 2003-12-09 | Procédé d'établissement des paramètres d'une prothèse auditive et dispositif pour la mise en oeuvre du procédé |
DK03028311T DK1416764T3 (da) | 2003-12-09 | 2003-12-09 | Fremgangsmåde til indstilling af parametre af et höreapparat og en anordning til udövelse af fremgangsmåden |
DE50309302T DE50309302D1 (de) | 2003-12-09 | 2003-12-09 | Verfahren zur Einstellung eines Hörgerätes sowie Vorrichtung zur Durchführung des Verfahrens |
CN 200410100769 CN1627865A (zh) | 2003-12-09 | 2004-12-06 | 调整听力装置的方法以及实现该方法的设备 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20030028311 EP1416764B1 (fr) | 2003-12-09 | 2003-12-09 | Procédé d'établissement des paramètres d'une prothèse auditive et dispositif pour la mise en oeuvre du procédé |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1416764A2 EP1416764A2 (fr) | 2004-05-06 |
EP1416764A3 EP1416764A3 (fr) | 2004-07-07 |
EP1416764B1 true EP1416764B1 (fr) | 2008-03-05 |
Family
ID=32088141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20030028311 Expired - Lifetime EP1416764B1 (fr) | 2003-12-09 | 2003-12-09 | Procédé d'établissement des paramètres d'une prothèse auditive et dispositif pour la mise en oeuvre du procédé |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1416764B1 (fr) |
CN (1) | CN1627865A (fr) |
DE (1) | DE50309302D1 (fr) |
DK (1) | DK1416764T3 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006042083B4 (de) * | 2006-09-07 | 2010-11-11 | Siemens Audiologische Technik Gmbh | Verfahren und Vorrichtung zur Bestimmung eines effektiven Vents |
DE102007039185A1 (de) * | 2007-08-20 | 2009-02-26 | Siemens Medical Instruments Pte. Ltd. | Verfahren und Vorrichtung zur Einstellung eines Hörgerätes |
EP2247119A1 (fr) | 2009-04-27 | 2010-11-03 | Siemens Medical Instruments Pte. Ltd. | Dispositif d'analyse acoustique d'un dispositif auditif et procédé d'analyse |
WO2013007304A1 (fr) * | 2011-07-13 | 2013-01-17 | Phonak Ag | Procédé et système pour tester un appareil auditif depuis un emplacement distant |
DE102014200677A1 (de) * | 2014-01-16 | 2015-07-16 | Siemens Medical Instruments Pte. Ltd. | Verfahren und Vorrichtung zur Analyse von Hörhilfeeinstellungen |
DE102020202915B4 (de) | 2020-03-06 | 2022-05-05 | Sivantos Pte. Ltd. | Verfahren zur Übertragung eines Hörgeräteeinstelldatensatzes von einem ersten Hörgerät auf ein zweites Hörgerät, Hörgerätesystem und Hörgerät |
CN113518298B (zh) * | 2020-04-09 | 2022-06-07 | 圣布拉斯特有限公司 | 音频校正系统 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5703797A (en) * | 1991-03-22 | 1997-12-30 | Frye Electronics, Inc. | Method and apparatus for testing acoustical devices, including hearing aids and the like |
US7058182B2 (en) * | 1999-10-06 | 2006-06-06 | Gn Resound A/S | Apparatus and methods for hearing aid performance measurement, fitting, and initialization |
-
2003
- 2003-12-09 EP EP20030028311 patent/EP1416764B1/fr not_active Expired - Lifetime
- 2003-12-09 DK DK03028311T patent/DK1416764T3/da active
- 2003-12-09 DE DE50309302T patent/DE50309302D1/de not_active Expired - Lifetime
-
2004
- 2004-12-06 CN CN 200410100769 patent/CN1627865A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
DE50309302D1 (de) | 2008-04-17 |
DK1416764T3 (da) | 2008-06-30 |
EP1416764A3 (fr) | 2004-07-07 |
EP1416764A2 (fr) | 2004-05-06 |
CN1627865A (zh) | 2005-06-15 |
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