EP1809072A2 - Procédé et dispositif de vérification d'une situation de mesure dans un dispositif auditif - Google Patents

Procédé et dispositif de vérification d'une situation de mesure dans un dispositif auditif Download PDF

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Publication number
EP1809072A2
EP1809072A2 EP06126526A EP06126526A EP1809072A2 EP 1809072 A2 EP1809072 A2 EP 1809072A2 EP 06126526 A EP06126526 A EP 06126526A EP 06126526 A EP06126526 A EP 06126526A EP 1809072 A2 EP1809072 A2 EP 1809072A2
Authority
EP
European Patent Office
Prior art keywords
measuring
signal
tolerance range
hearing device
frequency
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Withdrawn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
EP06126526A
Other languages
German (de)
English (en)
Other versions
EP1809072A3 (fr
Inventor
Harald Klemenz
Hartmut Ritter
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 Audiologische 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 Audiologische Technik GmbH filed Critical Siemens Audiologische Technik GmbH
Publication of EP1809072A2 publication Critical patent/EP1809072A2/fr
Publication of EP1809072A3 publication Critical patent/EP1809072A3/fr
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Electric hearing aids
    • H04R25/30—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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/004—Monitoring arrangements; Testing arrangements for microphones
    • 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
    • H04R25/70—Adaptation of deaf aid to hearing loss, e.g. initial electronic fitting

Definitions

  • the present invention relates to a method for checking a measurement situation when testing or adjusting a hearing device, in particular a hearing device, in a measuring chamber. Moreover, the present invention relates to a corresponding device for checking the measurement situation.
  • a measuring chamber is used in which the hearing device can be exposed to defined noises and corresponding measurements can be carried out.
  • the term measuring chamber can also be understood as a measuring space.
  • a programming interface in particular a HIPRO
  • a PC a programming interface for controlling a measuring box
  • the signal processing circuit and also the microphone of the measuring box can be parts of a conventional hearing device, whereby standard components of high quality can be used for the measuring device.
  • the object of the present invention is thus to make the setting and checking of a hearing device and in particular a hearing device more reliable.
  • the invention therefore provides a method for checking a measuring situation when testing or setting a hearing device, in particular a hearing device, in a measuring chamber by recording at least two measuring points of one Frequency response of the hearing device, Checking whether the at least two measurement points are within a predetermined tolerance range, and if so, outputting an in-order signal and otherwise if at least one of the measurement points is out of tolerance, determining the location of the measurement point out of tolerance and Output of a fault signal as a function of the determined position.
  • the invention provides a device for checking a measurement situation when testing or setting a hearing device, in particular a hearing device, in a measuring chamber with a measuring device for recording at least two measuring points of a frequency response of the hearing device and an evaluation device for checking whether the at least two measuring points in a predetermined tolerance range, as well as for outputting an in-order signal, if they are in the tolerance range, and otherwise, if at least one of the measuring points is outside the tolerance range, for determining a position of the measuring point outside the tolerance range and for outputting a fault signal depending from the determined situation.
  • the interference signal is a defect signal that indicates the defect of a microphone of the hearing device when the at least two measurement points are below a predetermined threshold.
  • this makes it possible to determine whether the measurement level is below a noise floor, which indicates the safe failure of a microphone.
  • the disturbance signal may be a leak signal indicating leaking of a metering chamber when a slope of the straight line between two metering points exceeds a predetermined first value or the metering point at the lowest metering frequency below and the metering point at the highest metering frequency is within the tolerance range. This is exploited in an advantageous manner that occur in leaks losses in the low-frequency range.
  • the interference signal may be a pollution signal, which indicates contamination of the microphone of the hearing device when a slope of the line between two measurement points falls below a predetermined second value or the measurement point at the lowest measurement frequency within and the measurement point at the highest measurement frequency is below the tolerance , Specifically, if the slope of the line is negative, this is a sure sign that a microphone is dirty and so the high frequencies are heavily attenuated.
  • the test apparatus has an internal generator for generating an acoustic test signal. This does not rely on additional signal sources for the review. Moreover, it is advantageous if the device has a closable measuring chamber into which the hearing device can be inserted for checking. In this way, independence from the acoustic situation in the current environment can be achieved.
  • the reproduced in FIG 1 test device consists of a measuring chamber 1, in which a hearing aid 2 is inserted.
  • the hearing device 2 has two microphones 3, 4 and a signal processing unit 5.
  • the hearing aid 2 is connected to a measuring unit 6 via a suitable interface.
  • the measuring device 6 is in turn connected to a display 8.
  • the measuring chamber 1 Within the measuring chamber 1 is still an internal generator and / or a speaker 7 for generating test sound signals.
  • the generator or loudspeaker 7 can be controlled by the measuring device 6. Even if the measuring device 6 is mounted here on the measuring chamber 1, it can also represent a device independent of the measuring chamber 1.
  • the measuring device 6 can also be configured multi-channel, so that several levels of microphones can be recorded simultaneously. In FIG. 1, the number of microphones is 2. However, only one microphone or three microphones and more can be measured. Also, it is not necessarily necessary that the microphone or microphones are integrated in a hearing aid 2. Rather, the measuring device can also be used for non-built-in microphones.
  • the individual microphones 3, 4 Before the individual microphones 3, 4 can be mutually adjusted, it makes sense to check whether the microphones 3, 4 are also functional, or the measuring chamber 1 is tight enough. Only in a correct measurement situation, an adjustment of the microphones or a setting of the hearing aid can be done.
  • FIG 2 shows several different frequency responses, which are due to different measurement situations.
  • the curve I is the frequency response of a microphone ideally again.
  • a threshold S1 lies at a tolerance distance from the ideal curve I. Above the threshold S1 there is a tolerance range, in which the microphone is classified as working correctly. If a measuring point is below the threshold S1, by definition there is a disturbance of the measuring situation.
  • test frequency f1 is less than 1000 Hz and a test frequency f2 is more than 2000 Hz.
  • the display element 8 indicates to the user a corresponding in-order signal.
  • the measuring points A and D are determined. Both measuring points are above the threshold S1. This means that the microphone is ok. The microphone can therefore be adjusted or adjusted.
  • the measuring points A and D are determined. This means that the level is low at high frequencies, whereas at low frequencies it is high. This is a sign that the microphone is clogged by contamination.
  • the measuring device 6 emits a contamination signal to the operator via the display device 8. For further use of the hearing aid so the microphone must be cleaned.
  • the measuring points C and B are determined. This means that the signal is fine at high frequencies, while the low frequencies are too much attenuated, since the point C is below the threshold S1. This indicates that the measuring chamber 1 has a leak 9 (see FIG. Consequently, the measuring chamber must be sealed in order to obtain reliable measurement results.
  • the measuring points E, F are determined. They are both below a second threshold S2, the level of which corresponds only to a noise level. Therefore, it can be assumed that the microphone is defective. Before the others Use of the microphone must therefore take place a corresponding repair or replacement. This microphone defect is also displayed to the user by the measuring device 6 via the display element 8.
  • the measurement situation was classified using two measurements. A more differentiated evaluation can be achieved with several measuring points. Basically, the measurement can be refined as desired until finally an entire spectral range is recorded and evaluated. In any case, information about the measurement situation or the state of the microphone can be determined automatically from this.
  • the measuring method according to the invention can also be used for several microphones in parallel or in series.
  • the measuring points or measuring curves according to FIG. 2 are recorded for each microphone and the corresponding information is obtained therefrom.
  • the display on the display element 8 is to make something differentiated, so that the user receives the corresponding defect signal, leakage signal, etc. in relation to the respective microphone.
  • the presented method makes it easier to automate or computer-aided verification, calibration and evaluation of hearing aids. In addition, further self-tests can be automatically implemented or continued.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Neurosurgery (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Examining Or Testing Airtightness (AREA)
EP06126526A 2006-01-13 2006-12-19 Procédé et dispositif de vérification d'une situation de mesure dans un dispositif auditif Withdrawn EP1809072A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006001845A DE102006001845B3 (de) 2006-01-13 2006-01-13 Verfahren und Vorrichtung zur Überprüfung einer Messsituation bei einer Hörvorrichtung

Publications (2)

Publication Number Publication Date
EP1809072A2 true EP1809072A2 (fr) 2007-07-18
EP1809072A3 EP1809072A3 (fr) 2010-08-04

Family

ID=37943832

Family Applications (1)

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EP06126526A Withdrawn EP1809072A3 (fr) 2006-01-13 2006-12-19 Procédé et dispositif de vérification d'une situation de mesure dans un dispositif auditif

Country Status (3)

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US (1) US8041044B2 (fr)
EP (1) EP1809072A3 (fr)
DE (1) DE102006001845B3 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8144884B2 (en) * 2004-05-24 2012-03-27 Cochlear Limited Stand-alone microphone test system for a hearing device
US9781522B2 (en) 2013-07-23 2017-10-03 Advanced Bionics Ag Systems and methods for detecting degradation of a microphone included in an auditory prosthesis system
DK201470370A1 (en) * 2014-06-20 2016-01-11 Gn Otometrics As Apparatus for testing directionality in hearing instruments
US9729975B2 (en) 2014-06-20 2017-08-08 Natus Medical Incorporated Apparatus for testing directionality in hearing instruments
CN106454676A (zh) * 2016-09-28 2017-02-22 东莞市维垦电子科技有限公司 一种用于测试带麦克风柔性线路板的转盘装置及检测方法
CN106535075A (zh) * 2016-11-10 2017-03-22 深圳市燕麦科技股份有限公司 麦克风漏音测试装置及其测试方法
WO2019238800A1 (fr) 2018-06-15 2019-12-19 Widex A/S Procédé de test des performances d'un microphone d'un système d'aide auditive et système d'aide auditive
CN109104684B (zh) 2018-07-26 2020-10-30 Oppo广东移动通信有限公司 麦克风堵孔检测方法及相关产品

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4674123A (en) * 1983-05-27 1987-06-16 Frederic Michas Test bench for the adjustment of electro-acoustic channels and particularly of devices for auditory correction
EP1467595A2 (fr) * 2003-04-08 2004-10-13 Gennum Corporation Prothèse auditive avec des mécanismes d'autodiagnistic
AU2005202243A1 (en) * 2004-05-24 2005-12-08 Cochlear Limited Stand Alone Microphone Test System for a Hearing Device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1579735A (en) * 1976-03-19 1980-11-26 Nat Res Dev Frequency response testing apparatus
FR2738099B1 (fr) * 1995-08-25 1997-10-24 France Telecom Procede de simulation de la qualite acoustique d'une salle et processeur audio-numerique associe
US6718296B1 (en) * 1998-10-08 2004-04-06 British Telecommunications Public Limited Company Measurement of signal quality
US7197152B2 (en) * 2002-02-26 2007-03-27 Otologics Llc Frequency response equalization system for hearing aid microphones
US7548625B2 (en) * 2002-11-29 2009-06-16 Research In Motion Limited System and method of audio testing of acoustic devices
US7003128B2 (en) * 2003-04-07 2006-02-21 Phonak Ag Hearing device set for testing a hearing device
WO2005125276A1 (fr) * 2004-06-14 2005-12-29 Johnson & Johnson Consumer Companies, Inc. Systeme de nettoyage et de test a domicile d'une prothese auditive

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4674123A (en) * 1983-05-27 1987-06-16 Frederic Michas Test bench for the adjustment of electro-acoustic channels and particularly of devices for auditory correction
EP1467595A2 (fr) * 2003-04-08 2004-10-13 Gennum Corporation Prothèse auditive avec des mécanismes d'autodiagnistic
AU2005202243A1 (en) * 2004-05-24 2005-12-08 Cochlear Limited Stand Alone Microphone Test System for a Hearing Device

Also Published As

Publication number Publication date
US8041044B2 (en) 2011-10-18
US20070175281A1 (en) 2007-08-02
DE102006001845B3 (de) 2007-07-26
EP1809072A3 (fr) 2010-08-04

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