[go: up one dir, main page]

EP0010169A1 - Method and device to measure, control and in particular to adjust the maximum sound pressure output of hearing aids - Google Patents

Method and device to measure, control and in particular to adjust the maximum sound pressure output of hearing aids Download PDF

Info

Publication number
EP0010169A1
EP0010169A1 EP79103499A EP79103499A EP0010169A1 EP 0010169 A1 EP0010169 A1 EP 0010169A1 EP 79103499 A EP79103499 A EP 79103499A EP 79103499 A EP79103499 A EP 79103499A EP 0010169 A1 EP0010169 A1 EP 0010169A1
Authority
EP
European Patent Office
Prior art keywords
sound
hearing aid
hearing
measuring
opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP79103499A
Other languages
German (de)
French (fr)
Inventor
Fritz Zapletal
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0010169A1 publication Critical patent/EP0010169A1/en
Ceased legal-status Critical Current

Links

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
    • 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
    • H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
    • H04R25/502—Customised settings for obtaining desired overall acoustical characteristics using analog signal processing

Definitions

  • the invention is based on a method according to the preamble of the main claim.
  • a soundproof space for example a measuring box, which receives a sound generator, the hearing aid to be measured and a coupler which can be connected to the hearing aid.
  • the coupler contains a resonance chamber connected to the sound outlet opening of the hearing aid, the volume of which corresponds approximately to the average volume of an auditory canal, and a microphone coupled to the resonance chamber, optionally with a downstream amplifier.
  • a measuring device is connected to the coupler outside the measuring box.
  • the measurement or setting of the maximum output sound pressure of a hearing aid is carried out as follows, for example, for a hearing aid acoustician.
  • the hearing aid set to maximum gain is connected to the coupler in the measuring box.
  • the measuring box is closed and the sound generator is switched on, which, for example, delivers a noise signal with a level of 90 dB.
  • the level raised by the amplification of the hearing aid amplifier can be read off on a measuring device of the measuring device. If the measured value exceeds a predetermined level of, for example, 120 to 130 dB, the measuring box must be opened, the PC (Peäk Clipping) adjuster turned back and the measuring box closed again.
  • the method according to the main claim and the device according to the invention for carrying out the method according to the subclaim have the advantage that a measuring box previously used and difficult to use can be dispensed with. Another essential one The advantage is that the time for measuring and setting the maximum output sound pressure of hearing aids can be considerably reduced compared to the previously customary method.
  • a measuring device is used to measure and adjust the maximum output sound pressure in a hearing aid (BTE device) 10 to be worn behind the ear, the housing 11 of which is detachably connected to an ear hook 12.
  • the ear hook contains a first sound channel 13, one end of which is connected to the microphone of the hearing aid and the other end of which forms a sound inlet opening 14.
  • a second sound channel 15 connected to the receiver of the hearing aid extends to the free end of the ear hook 12 and forms a sound exit opening 16 there.
  • the hearing aid 10 has various setting elements, such as, for example, an adjusting element 17 of the volume control and a PC (peak clipping) adjuster, which cannot be seen in FIG. 1 because it is located inside the hearing aid housing.
  • an adjusting element 17 of the volume control and a PC (peak clipping) adjuster, which cannot be seen in FIG. 1 because it is located inside the hearing aid housing.
  • PC peak clipping
  • a hearing tube 18 is plugged with its one end 19 onto the free end of the earhook and with its other end 20 firmly connected to an ear fitting 21.
  • the earpiece is individually adapted to the ear of the wearer of the hearing aid and contains a through hole 22 which also penetrates an ear canal attachment 23 of the earpiece.
  • One end of a tubular resonance chamber 24 is plugged onto the auditory canal attachment 23, the other end of which rests on a connecting piece 25 of the microphone 26.
  • the resonance chamber 24 consists, for example, of an at least partially elastic hose, which is dimensioned such that it clings closely to the auditory canal attachment 23 or the socket 25 and that it fits the.
  • the resonance chamber 24, the microphone 26, an amplifier 28 optionally connected downstream of the microphone 26 and a measuring and display device 29 form an electroacoustic measuring and / or testing device 27.
  • a sound source 30 is arranged within a recording device 31 which is only schematically indicated in FIG. 1 which also receives the hearing aid 10, the hearing tube 18, the earmold 21 and the measuring and / or testing device 27.
  • the sound outlet opening of the sound generator 30 is surrounded by an elastic sleeve 32, at whose opening facing away from the sound generator the sound inlet opening 14 of the hearing device 10 lies tightly.
  • a shaped piece 33 which is displaceably mounted within the receiving device 31 in the direction of the double arrow shown in FIG. 1, ensures in its one end position (drawn position) that there is a good seal between the sound inlet opening 14 and the sleeve. In the other end position of the molded part 33, the hearing aid 10 can be easily removed from the receiving device.
  • the setting of the maximum output sound pressure to be carried out without a complicated measuring box is expediently carried out as follows with the device according to FIG. 1.
  • the hearing aid 10 is set to maximum amplification by means of the volume control 17 and the sound generator 30 is switched on.
  • the sounder then emits a noise signal with a level of, for example, 90 dB via its loudspeaker.
  • the noise signal amplified in the hearing aid amplifier passes through the second sound channel 15 of the earhook 12, the hearing tube 18 and the O hr- fitting piece 21 can be read off from the input of the measuring and / or test device 27 at the measuring and display device 29, the level of the amplified noise signal.
  • the setting element of the PC adjuster which is preferably an adjusting resistor, the gain limitation (PC) can be set in such a way that a certain maximum output sound pressure of, for example, 130 dB occurs. Since the setting element of the PC adjuster is usually accessible from the outside of the hearing aid 10, the setting can be carried out conveniently.
  • the sound generator 30 supplies various discrete sound frequencies of approximately constant level instead of the noise signal after appropriate switching, the amplification of the hearing aid at the individual sound frequencies can be measured and read by means of the measuring and display device 29. If necessary, the quality of the hearing aid can also be checked by means of an oscilloscope 34 connected in parallel with the measuring and display device 29 (indicated by dashed lines in FIG. 1). Distortions caused by a poor or defective hearing aid amplifier can then be visualized on the screen of the oscilloscope 34.
  • the sound generator 41 must have a sleeve 43 which is adapted to the dimensions of the sound inlet opening 42 of the pocket hearing aid.
  • the pocket hearing aid has a connection socket 44 for connecting a receiver 45 via a cable 46.
  • the receiver 45 is usually plugged onto an earmold 47 which is shaped similarly to the earmold 21 in FIG. 1.
  • the earmold 47 is connected to the resonance chamber 24 of the measuring and / or testing device 27 in a manner similar to that shown in FIG. 1.
  • the setting of the maximum output sound pressure or the testing of the hearing aid amplifier is carried out in an analogous manner to that of the device according to FIG. 1.
  • the receiving device for the pocket hearing aid is somewhat modified compared to the exemplary embodiment in FIG. 1.
  • the fitting designated 33 in FIG. 1 will preferably engage on the underside of the pocket hearing aid 40.
  • the sound generator 50 must wear a sleeve 51 on its sound exit side which is adapted to the sound inlet opening 52 of the ITE device.
  • the sound entry opening 52 is connected to a microphone 53 located in the housing of the ITE hearing aid.
  • the shaped piece 33 (FIG. 1) must also be arranged and designed in accordance with the outer shape of the ITE hearing aid within the receiving device 31.
  • the cuffs 32, 43 and 51 consist of a sound-absorbing material, preferably an elastic plastic.

Landscapes

  • 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 The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

In this method and device the normally used special measuring box can be omitted. In accordance with the method, the sound emitted by a sound generator (30) is supplied via a sleeve (32) of the sound inlet opening of the hearing aid (10) and the sound amplified in the hearing aid is supplied via an ear adapter with an electro-acoustic measuring and/or test device (27). <IMAGE>

Description

Stand der TechnikState of the art

Die Erfindung geht aus von einem Verfahren nach der Gattung des Hauptanspruchs.The invention is based on a method according to the preamble of the main claim.

Bekannte Verfahren zum Messen und Einstellen des maximalen Ausgangsschalldrucks von Hörgeräten verwenden einen schalldicht abgeschlossenen Raum, beispielsweise eine Meßbox, die einen Schallgeber, das zu messende Hörgerät sowie einen mit dem Hörgerät verbindbaren Kuppler aufnimmt. Der Kuppler enthält einen mit der Schallaustrittsöffnung des Hörgerätes in Verbindung stehenden Resonanzraum, dessen Volumen etwa dem durchschnittlichen Volumen eines Gehörganges entspricht, sowie ein mit dem Resonanzraum gekoppeltes Mikrofon, gegebenenfalls mit nachgeschaltetem Verstärker. An den Kuppler ist außerhalb der Meßbox eine Meßeinrichtung angeschlossen.Known methods for measuring and setting the maximum output sound pressure of hearing aids use a soundproof space, for example a measuring box, which receives a sound generator, the hearing aid to be measured and a coupler which can be connected to the hearing aid. The coupler contains a resonance chamber connected to the sound outlet opening of the hearing aid, the volume of which corresponds approximately to the average volume of an auditory canal, and a microphone coupled to the resonance chamber, optionally with a downstream amplifier. A measuring device is connected to the coupler outside the measuring box.

Das Messen bzw. Einstellen des maximalen Ausgangsschalldrucks eines Hörgerätes geht bei einem Hörgeräte-Akustiker beispielsweise folgendermaßen vor sich. Das auf maximale Verstärkung eingestellte Hörgerät wird in der Meßbox mit dem Kuppler verbunden. Dann wird die Meßbox verschlossen und der Schallgeber eingeschaltet, der beispielsweise ein Rauschsignal mit einem Pegel von 90 dB liefert. An einem Meßgerät der Meßeinrichtung kann der durch die Verstärkung des Hörgeräteverstärkers angehobene Pegel abgelesen werden. übersteigt der Meßwert einen vorgegebenen Pegel von zum Beispiel 120 bis 130 dB, so muß die Meßbox geöffnet, der PC-(Peäk Clipping)Einsteller' zurückgedreht und die Meßbox wieder geschlossen werden.The measurement or setting of the maximum output sound pressure of a hearing aid is carried out as follows, for example, for a hearing aid acoustician. The hearing aid set to maximum gain is connected to the coupler in the measuring box. Then the measuring box is closed and the sound generator is switched on, which, for example, delivers a noise signal with a level of 90 dB. The level raised by the amplification of the hearing aid amplifier can be read off on a measuring device of the measuring device. If the measured value exceeds a predetermined level of, for example, 120 to 130 dB, the measuring box must be opened, the PC (Peäk Clipping) adjuster turned back and the measuring box closed again.

Für eine genaue Einstellung des maximalen Ausgangsschalldrucks ist ein mehrmaliges öffnen und Schließen der Meßbox nötig, weil das Handhaben des PC-Einstellers eines Hörgerätes nur bei geöffneter Meßbox und das Messen nur bei geschlossener Meßbox möglich ist und weil der Hörgeräte-Akustiker sich durch mehrmaliges Nachstellen des PC-Einstellers an den vorgegebenen Meßwert herantasten muß. Dieses Verfahren ist wegen der Verwendung einer kostspieligen Meßbox und wegen des hohen Zeitaufwandes für die Messung unvorteilhaft.For an exact setting of the maximum output sound pressure, repeated opening and closing of the measuring box is necessary because handling the PC adjuster of a hearing aid is only possible when the measuring box is open and measuring is only possible when the measuring box is closed, and because the hearing aid acoustician can adjust the hearing aid several times PC adjuster must approach the specified measured value. This method is disadvantageous because of the use of an expensive measuring box and because of the high expenditure of time for the measurement.

Vorteile der ErfiridüngAdvantages of Erfiridüng

Das erfindungsgemäße Verfahren nach dem Hauptanspruch und die erfindungsgemäße Vorrichtung zur Durchführung des Verfahrens nach dem Nebenanspruch haben den Vorteil, daß auf eine bisher verwendete und nur umständlich zu handhabende Meßbox verzichtet werden kann. Ein weiterer wesentlicher Vorteil besteht darin, daß die Zeit zum Messen und Einstellen des maximalen Ausgangsschalldrucks von Hörgeräten gegenüber dem bisher üblichen Verfahren erheblich reduziert werden kann.The method according to the main claim and the device according to the invention for carrying out the method according to the subclaim have the advantage that a measuring box previously used and difficult to use can be dispensed with. Another essential one The advantage is that the time for measuring and setting the maximum output sound pressure of hearing aids can be considerably reduced compared to the previously customary method.

Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen der im Nebenanspruch angegebenen Vorrichtung möglich.The measures listed in the subclaims allow advantageous developments of the device specified in the dependent claim.

Zeichnungdrawing

Ausführungsbeispiele der Erfindung sind in der Zeichnung anhand mehrerer Figuren dargestellt und in der nachfolgenden Beschreibung näher erläutert. Die Zeichnung zeigt in

  • . Fig. 1 eine schematische Darstellung einer erfindungsgemäßen Einrichtung zum Messen des maximalen Ausgangsschalldrucks eines hinter dem Ohr zu tragenden Hörgerätes,
  • Fig. 2 eine schematische Darstellung eines Taschenhörgerätes, dessen Schalleintrittsöffnung von einer Manschette eines Schallgebers umgeben ist und dessen Hörer mit einem Ohrpaßstück verbunden ist, und
  • Fig. 3 eine Ansicht eines im Ohr zu tragenden Hörgerätes, dessen Schalleintrittsöffnung von einer Manschette eines Schallgebers umgeben ist.
Exemplary embodiments of the invention are shown in the drawing using several figures and are explained in more detail in the following description. The drawing shows in
  • . 1 is a schematic representation of a device according to the invention for measuring the maximum output sound pressure of a hearing aid to be worn behind the ear,
  • Fig. 2 is a schematic representation of a pocket hearing aid, the sound inlet opening is surrounded by a cuff of a sounder and the listener is connected to an earmold, and
  • Fig. 3 is a view of a hearing aid to be worn in the ear, the sound inlet opening is surrounded by a cuff of a sound generator.

Beschreibung der ErfinaungDescription of the experience

Eine erfindungsgemäße Meßeinrichtung nach Fig. 1 dient zum Messen und Einstellen des maximalen Ausgangsschalldrucks bei einem hinter dem Ohr zu tragenden Hörgerät (HdO-Gerät) 10, dessen Gehäuse 11 lösbar mit einem Ohrbügel 12 verbunden ist. Der Ohrbügel enthält einen ersten Schallkanal 13, dessen eines Ende mit dem Mikrofon des Hörgerätes in Verbindung steht und dessen anderes Ende eine Schalleintrittsöffnung 14 bildet. Ein mit dem Hörer des Hörgerätes verbundener zweiter Schallkanal 15 verläuft bis zum freien Ende des Ohrbügels 12 und bildet dort eine Schallaustrittsöffnung 16.A measuring device according to the invention shown in FIG. 1 is used to measure and adjust the maximum output sound pressure in a hearing aid (BTE device) 10 to be worn behind the ear, the housing 11 of which is detachably connected to an ear hook 12. The ear hook contains a first sound channel 13, one end of which is connected to the microphone of the hearing aid and the other end of which forms a sound inlet opening 14. A second sound channel 15 connected to the receiver of the hearing aid extends to the free end of the ear hook 12 and forms a sound exit opening 16 there.

Das Hörgerät 10 hat verschiedene Einstellelemente, wie zum Beispiel ein Einstellelement 17 des Lautstärkestellers und einen PC-(Peak Clipping)Einsteller, der in Fig. 1 nicht zu sehen ist, weil er sich im Innern des Hörgerätegehäuses befindet.The hearing aid 10 has various setting elements, such as, for example, an adjusting element 17 of the volume control and a PC (peak clipping) adjuster, which cannot be seen in FIG. 1 because it is located inside the hearing aid housing.

Ein Hörschlauch 18 ist mit seinem einen Ende 19 auf das freie Ende des Ohrbügels gesteckt und mit seinem anderen Ende 20 fest mit einem Ohrpaßstück 21 verbunden. Das Ohrpaßstück ist dem Ohr des Trägers des Hörgerätes individuell angepaßt und enthält eine Durchgangsbohrung 22, die auch einen Gehörgang-Ansatz 23 des.Ohrpaßstücks durchsetzt. Auf den Gehörgang-Ansatz 23 ist ein Ende einer rohrförmigen Resonanzkammer 24 gesteckt, deren anderes Ende auf einem Stutzen 25 des Mikrofons 26 sitzt. Die Resonanzkammer 24 besteht beispielsweise aus einem zumindest teilweise elastischen Schlauch, der derart bemessen ist, daß er sich eng an den Gehörgang-Ansatz 23 bzw. den Stutzen 25 anschmiegt und daß er ein dem . Innenohr-Volumen eines Hörgeschädigten angepaßtes Volumen hat.A hearing tube 18 is plugged with its one end 19 onto the free end of the earhook and with its other end 20 firmly connected to an ear fitting 21. The earpiece is individually adapted to the ear of the wearer of the hearing aid and contains a through hole 22 which also penetrates an ear canal attachment 23 of the earpiece. One end of a tubular resonance chamber 24 is plugged onto the auditory canal attachment 23, the other end of which rests on a connecting piece 25 of the microphone 26. The resonance chamber 24 consists, for example, of an at least partially elastic hose, which is dimensioned such that it clings closely to the auditory canal attachment 23 or the socket 25 and that it fits the. Has a volume adapted to the inner ear volume of a hearing impaired person.

Die Resonanzkammer 24, das Mikrofon 26, ein dem Mikrofon 26 gegebenenfalls nachgeschalteter Verstärker 28 und eine Meß- und Anzeigevorrichtung 29 bilden eine elektroakustische Meß- und/oder Prüfeinrichtung 27. Eine Schallquelle 30 ist innerhalb einer in Fig. 1 nur schematisch angedeuteten Aufnahmevorrichtung 31 angeordnet, die außerdem das Hörgerät 10, den Hörschlauch 18, das Ohrpaßstück 21 und die Meß- und/oder Prüfeinrichtung 27 aufnimmt.The resonance chamber 24, the microphone 26, an amplifier 28 optionally connected downstream of the microphone 26 and a measuring and display device 29 form an electroacoustic measuring and / or testing device 27. A sound source 30 is arranged within a recording device 31 which is only schematically indicated in FIG. 1 which also receives the hearing aid 10, the hearing tube 18, the earmold 21 and the measuring and / or testing device 27.

Die Schallaustrittsöffnung des Schallgebers 30 ist von einer elastischen Manschette 32 umgeben, an deren dem Schallgeber abgewandten Öffnung die Schalleintrittsöffnung 14 des Hörgerätes 10 dicht anliegt. Ein in Richtung des in Fig. 1 gezeigten Doppelpfeils innerhalb der Aufnahmevorrichtung 31 verschiebbar gelagertes Formstück 33 sorgt in seiner einen Endstellung (gezeichnete Stellung) dafür, daß eine gute Dichtung zwischen Schalleintrittsöffnung 14 und Manschette besteht. In der anderen Endstellung des Formstücks 33 kann das Hörgerät 10 leicht aus der Aufnahmevorrichtung herausgenommen werden.The sound outlet opening of the sound generator 30 is surrounded by an elastic sleeve 32, at whose opening facing away from the sound generator the sound inlet opening 14 of the hearing device 10 lies tightly. A shaped piece 33, which is displaceably mounted within the receiving device 31 in the direction of the double arrow shown in FIG. 1, ensures in its one end position (drawn position) that there is a good seal between the sound inlet opening 14 and the sleeve. In the other end position of the molded part 33, the hearing aid 10 can be easily removed from the receiving device.

Die ohne eine komplizierte Meßbox auszuführende Einstellung des maximalen Ausgangsschalldrucks geht mit der Einrichtung nach Fig. 1 zweckmäßigerweise folgendermaßen vor sich.The setting of the maximum output sound pressure to be carried out without a complicated measuring box is expediently carried out as follows with the device according to FIG. 1.

Das Hörgerät 10 wird mittels des Lautstärkestellers 17 auf maximale Verstärkung eingestellt und der Schallgeber 30 eingeschaltet. Der Schallgeber gibt dann über seinen Lautsprecher ein Rauschsignal mit einem Pegel von zum Beispiel 90 dB ab. Das in dem Hörgeräteverstärker verstärkte Rauschsignal gelangt über den zweiten Schallkanal 15 des Ohrbügels 12, den Hörschlauch 18 und das Ohr- paßstück 21 an den Eingang der Meß- und/oder Prüfeinrichtung 27, an deren Meß- und Anzeigevorrichtung 29 der Pegel des verstärkten Rauschsignals abgelesen werden kann. Durch Verstellen des Einstellelements des PC-Einstellers, das ist vorzugsweise ein Einstellwiderstand, kann die Verstärkungsbegrenzung (PC) derart eingestellt werden, daß ein bestimmter maximaler Ausgangsschalldruck von zum Beispiel 130 dB auftritt. Da das Einstellelement des PC-Einstellers üblicherweise von der Außenseite des Hörgerätes 10 zugänglich ist, läßt sich die Einstellung bequem durchführen.The hearing aid 10 is set to maximum amplification by means of the volume control 17 and the sound generator 30 is switched on. The sounder then emits a noise signal with a level of, for example, 90 dB via its loudspeaker. The noise signal amplified in the hearing aid amplifier passes through the second sound channel 15 of the earhook 12, the hearing tube 18 and the O hr- fitting piece 21 can be read off from the input of the measuring and / or test device 27 at the measuring and display device 29, the level of the amplified noise signal. By adjusting the setting element of the PC adjuster, which is preferably an adjusting resistor, the gain limitation (PC) can be set in such a way that a certain maximum output sound pressure of, for example, 130 dB occurs. Since the setting element of the PC adjuster is usually accessible from the outside of the hearing aid 10, the setting can be carried out conveniently.

Liefert der Schallgeber 30 nach entsprechender Umschaltung anstelle des Rauschsignals verschiedene diskrete Tonfrequenzen annähernd konstanten Pegels, so kann mittels der Meß- und Anzeigevorrichtung 29 die Verstärkung des Hörgerätes bei den einzelnen Tonfrequenzen gemessen und abgelesen werden. Gegebenenfalls kann auch mittels eines der Meß- und Anzeigevorrichtung 29 parallelgeschalteten Oszilloskops 34 (in Fig. 1 gestrichelt angedeutet) die Qualität des Hörgerätes geprüft werden. Aufgrund eines schlechten oder defekten Hörgeräteverstärkers verursachte Verzerrungen können'dann auf dem Bildschirm des Oszilloskops 34 sichtbar gemacht werden.If the sound generator 30 supplies various discrete sound frequencies of approximately constant level instead of the noise signal after appropriate switching, the amplification of the hearing aid at the individual sound frequencies can be measured and read by means of the measuring and display device 29. If necessary, the quality of the hearing aid can also be checked by means of an oscilloscope 34 connected in parallel with the measuring and display device 29 (indicated by dashed lines in FIG. 1). Distortions caused by a poor or defective hearing aid amplifier can then be visualized on the screen of the oscilloscope 34.

Soll der maximale Ausgangsschalldruck eines Taschen-Hörgerätes 40 (Fig. 2) eingestellt werden, so muß der Schallgeber 41 eine den Abmessungen der Schalleintrittsöffnung 42 des Taschen- Hörgerätes angepaßte Manschette 43 aufweisen. Das Taschen-Hörgerät hat eine Anschlußbuchse 44 zum Anschließen eines Hörers 45 über ein Kabel 46. Der Hörer 45 ist üblicherweise auf ein Ohrpaßstück 47 aufgesteckt, das ähnlich dem Ohrpaßstück 21 in Fig. 1 geformt ist. Zur Messung bzw. Prüfung wird das Ohrpaßstück 47 ähnlich wie nach Fig. 1 mit der Resonanz- i kammer 24 der Meß- und/oder Prüfeinrichtung 27 verbunden. Das Einstellen des maximalen Ausgangsschalldrucks bzw. das Prüfen des Hörgeräteverstärkers geht in analoger Weise wie bei der Einrichtung nach Fig. 1 vor sich. Die Aufnahmevorrichtung für das Taschen-Hörgerät ist in diesem Fall gegenüber dem Ausführungsbeispiel in Fig. 1 etwas abgewandelt. Das in Fig. 1 mit 33 bezeichnete Formstück wird vorzugsweise an der Unterseite des Taschen-Hörgerätes 40 angreifen.If the maximum output sound pressure of a pocket hearing aid 40 (FIG. 2) is to be set, the sound generator 41 must have a sleeve 43 which is adapted to the dimensions of the sound inlet opening 42 of the pocket hearing aid. The pocket hearing aid has a connection socket 44 for connecting a receiver 45 via a cable 46. The receiver 45 is usually plugged onto an earmold 47 which is shaped similarly to the earmold 21 in FIG. 1. For measurement or testing, the earmold 47 is connected to the resonance chamber 24 of the measuring and / or testing device 27 in a manner similar to that shown in FIG. 1. The setting of the maximum output sound pressure or the testing of the hearing aid amplifier is carried out in an analogous manner to that of the device according to FIG. 1. In this case, the receiving device for the pocket hearing aid is somewhat modified compared to the exemplary embodiment in FIG. 1. The fitting designated 33 in FIG. 1 will preferably engage on the underside of the pocket hearing aid 40.

Soll der maximale Ausgangsschalldruck eines im Ohr zu tragenden Hörgerätes (IdO-Hörgerät) eingestellt werden, dann muß der Schallgeber 50 an seiner Schallaustrittsseite eine Manschette 51 tragen, die der Schalleintrittsöffnung 52 des IdO-Gerätes angepaßt ist. Die Schalleintrittsöffnung 52 steht mit einem in dem Gehäuse des'-IdO-Hörgerätes befindlichen Mikrofon 53 in Verbindung.If the maximum output sound pressure of a hearing aid to be worn in the ear (ITE hearing aid) is to be set, then the sound generator 50 must wear a sleeve 51 on its sound exit side which is adapted to the sound inlet opening 52 of the ITE device. The sound entry opening 52 is connected to a microphone 53 located in the housing of the ITE hearing aid.

Auch in dem Ausführungsbeispiel nach Fig. 3 muß das Formstück 33 (Fig. 1) entsprechend der Außenform des IdO-Hörgerätes innerhalb der Aufnahmevorrichtung 31 angeordnet und ausgebildet sein.In the exemplary embodiment according to FIG. 3, the shaped piece 33 (FIG. 1) must also be arranged and designed in accordance with the outer shape of the ITE hearing aid within the receiving device 31.

Dem Fachmann bleibt es überlassen, in ein und derselben Aufnahmevorrichtung 31 Formstücke 33 für die verschiedenen Hörgerätetypen vorzusehen.It is left to the person skilled in the art to provide moldings 33 for the different types of hearing aids in one and the same receiving device 31.

Die Manschetten 32, 43 und 51 bestehen aus einem schalldämmenden Material, vorzugsweise einem elastischen Kunststoff.The cuffs 32, 43 and 51 consist of a sound-absorbing material, preferably an elastic plastic.

Claims (7)

1. Verfahren zum Messen, Prüfen und insbesondere zum Einstellen des maximalen Ausgangsschalldrucks eines Hörgerätes unter Verwendung eines Schallgebers, der ein Tonsignal annähernd konstanten Pegels abgibt, und einer mit der Schallaustrittsöffnung des Hörgerätes über eine akustische Kupplungseinrichtung verbundenen elektroakustischen Meßeinrichtung, dadurch gekennzeichnet, daß a) der von dem Schallgeber (30) abgegebene Schall über eine Manschette (32) der Schalleintrittsöffnung (14) des Hörgerätes (10) zugeführt wird und daß b) der in dem Hörgerät verstärkte Schall über ein Ohrpaßstück (21) eines Hörgeschädigten der elektroakustischen Meßeinrichtung.(27) zugeführt wird. 1. A method for measuring, testing and in particular for adjusting the maximum output sound pressure of a hearing aid using a sound generator which emits a sound signal of approximately constant level, and an electroacoustic measuring device connected to the sound outlet opening of the hearing aid via an acoustic coupling device, characterized in that a) the sound emitted by the sound generator (30) via a sleeve (32) of the sound inlet opening (14) of the hearing aid (10) and that b) the sound amplified in the hearing aid is fed to the electroacoustic measuring device (27) via an ear fitting (21) of a hearing impaired person. 2. Einrichtung zur Durchführung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß a) die Schallöffnung des Schallgebers (30) von einer aus zumindest etwas schalldämmendem Material bestehenden elastischen Manschette (13) umgeben ist, b) die dem Schallgeber (30) abgewandte Öffnung der Manschette derart ausgebildet ist, daß sie die Schalleintrittsöffnung (14) des zu messenden und einzustellenden Hörgerätes (10) akustisch dichtend umschließt, c) die Schallaustrittsöffnung (16) des Hörgerätes mit dem Ohrpaßstück (21) eines Hörgeschädigten verbunden ist, d) der Gehörgang-Ansatz (23) des Ohrpaßstücks mit der elektroakustischen Meßeinrichtung (27) verbunden ist. 2. Device for performing the method according to claim 1, characterized in that a) the sound opening of the sound generator (30) is surrounded by an elastic sleeve (13) consisting of at least some sound-absorbing material, b) the opening of the cuff facing away from the sound generator (30) is designed such that it encloses the sound entry opening (14) of the hearing device (10) to be measured and adjusted in an acoustically sealing manner, c) the sound outlet opening (16) of the hearing aid is connected to the earmold (21) of a hearing impaired person, d) the ear canal attachment (23) of the earmold is connected to the electroacoustic measuring device (27). 3. Einrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Manschette (32) aus einem zumindest teilweise elastischen Material besteht.3. Device according to claim 2, characterized in that the sleeve (32) consists of an at least partially elastic material. 4. Einrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Schallaustrittsöffnung des Hörgerätes über einen Hörschlauch (18) mit dem Ohrpaßstück (21) verbunden ist.4. Device according to claim 2, characterized in that the sound outlet opening of the hearing aid via a hearing tube (18) is connected to the earmold (21). 5. Einrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die elektroakustische Meßeinrichtung eine Resonanzkammer (24), ein damit akustisch verbundenes Mikrofon (26) und eine Meß- und Anzeigevorrichtung (29)' umfaßt.5. Device according to claim 2, characterized in that the electroacoustic measuring device comprises a resonance chamber (24), an acoustically connected microphone (26) and a measuring and display device (29) ' . 6. Einrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die Resonanzkammer (24) rohrförmig ausgebildet ist.6. Device according to claim 5, characterized in that the resonance chamber (24) is tubular. 7. Einrichtung nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß das Volumen der Resonanzkammer (24) dem durchschnittlichen Gehörgang-Volumen von Hörgeschädigten angepaßt ist.7. Device according to claim 5 or 6, characterized in that the volume of the resonance chamber (24) is adapted to the average auditory canal volume of the hearing impaired.
EP79103499A 1978-10-25 1979-09-18 Method and device to measure, control and in particular to adjust the maximum sound pressure output of hearing aids Ceased EP0010169A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782846346 DE2846346A1 (en) 1978-10-25 1978-10-25 METHOD FOR MEASURING, TESTING, AND IN PARTICULAR FOR SETTING THE MAXIMUM OUTPUT SOUND PRESSURE OF HOER DEVICES
DE2846346 1978-10-25

Publications (1)

Publication Number Publication Date
EP0010169A1 true EP0010169A1 (en) 1980-04-30

Family

ID=6053025

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79103499A Ceased EP0010169A1 (en) 1978-10-25 1979-09-18 Method and device to measure, control and in particular to adjust the maximum sound pressure output of hearing aids

Country Status (2)

Country Link
EP (1) EP0010169A1 (en)
DE (1) DE2846346A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0128848A1 (en) * 1983-05-27 1984-12-19 Frédéric Michas Test bench for an electroacoustic assembly, in particular for hearing aids
EP1725073A3 (en) * 2005-05-19 2009-08-26 Starkey Laboratories, Inc. System for testing hearing assistance devices using a planar waveguide
EP2362684A1 (en) * 2010-02-23 2011-08-31 Aleksandar Krcmarevic Device for a HDO hearing aid and HDO hearing aid
CN102905216A (en) * 2011-07-29 2013-01-30 西门子医疗器械公司 Hearing aids with special sound transmission channels

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3719783A (en) * 1971-04-23 1973-03-06 J Kennedy Acoustic coupler
US3923119A (en) * 1974-01-03 1975-12-02 Frye G J Sound pressure box
GB1426604A (en) * 1973-07-06 1976-03-03 Post Office Acoustic measurements
US3979567A (en) * 1975-02-18 1976-09-07 Frye G J Microphone coupler for hearing aid having inverted conical end configuration
DE2624240A1 (en) * 1975-06-23 1977-01-20 Unitron Ind Ltd HOERGERAET
US4095057A (en) * 1976-03-19 1978-06-13 National Research Development Corporation Frequency response testing apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3719783A (en) * 1971-04-23 1973-03-06 J Kennedy Acoustic coupler
GB1426604A (en) * 1973-07-06 1976-03-03 Post Office Acoustic measurements
US3923119A (en) * 1974-01-03 1975-12-02 Frye G J Sound pressure box
US3979567A (en) * 1975-02-18 1976-09-07 Frye G J Microphone coupler for hearing aid having inverted conical end configuration
DE2624240A1 (en) * 1975-06-23 1977-01-20 Unitron Ind Ltd HOERGERAET
US4095057A (en) * 1976-03-19 1978-06-13 National Research Development Corporation Frequency response testing apparatus

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0128848A1 (en) * 1983-05-27 1984-12-19 Frédéric Michas Test bench for an electroacoustic assembly, in particular for hearing aids
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
EP1725073A3 (en) * 2005-05-19 2009-08-26 Starkey Laboratories, Inc. System for testing hearing assistance devices using a planar waveguide
US7769185B2 (en) 2005-05-19 2010-08-03 Starkey Laboratories, Inc. System for testing hearing assistance devices using a planar waveguide
EP2362684A1 (en) * 2010-02-23 2011-08-31 Aleksandar Krcmarevic Device for a HDO hearing aid and HDO hearing aid
WO2011104288A2 (en) 2010-02-23 2011-09-01 Aleksandar Krcmarevic Device for a behind-the-ear hearing aid, and behind-the-ear hearing aid
DE212011100053U1 (en) 2010-02-23 2012-11-12 Aleksandar Krcmarevic Device for an HDO hearing aid and HDO hearing aid
CN102905216A (en) * 2011-07-29 2013-01-30 西门子医疗器械公司 Hearing aids with special sound transmission channels
CN102905216B (en) * 2011-07-29 2015-06-17 西门子医疗器械公司 Hearing apparatus having a special sound channel

Also Published As

Publication number Publication date
DE2846346A1 (en) 1980-05-08

Similar Documents

Publication Publication Date Title
DE102006026721A1 (en) Compact test device for hearing aids
DE4026420C2 (en) Hearing aid with feedback compensation
DE69837725T2 (en) METHOD FOR IN-SITU MEASURING AND CORRECTING OR ADJUSTING AN OUTPUT SIGNAL OF A HEARING DEVICE WITH THE HELP OF A MODEL PROCESSOR AND HEARING DEVICE FOR CARRYING OUT THE METHOD
DE102006047965A1 (en) Method for the reduction of occlusion effects with acoustic device locking an auditory passage, involves using signal from transmission path of audio signal, and transmission function is observed by output of output converter
US3848091A (en) Method of fitting a prosthetic device for providing corrections of auditory deficiencies in aurally handicapped persons
DE2844218A1 (en) METHOD FOR SELECTING, ADJUSTING, ADJUSTING, MEASURING AND CHECKING HOUR DEVICES
EP2053877A1 (en) Method and device for adapting a hearing aid using DPOAE
EP0010169A1 (en) Method and device to measure, control and in particular to adjust the maximum sound pressure output of hearing aids
DE60211793T2 (en) Modeling transducers in a digital hearing aid
EP1301060B1 (en) Method and apparatus for determination of acoustic parameters for fitting hearing aids
DE102006042083B4 (en) Method and device for determining an effective vein
EP3368408B1 (en) Sound reproduction device and method for adapting a sound reproduction device
DE2620327A1 (en) Sound level meter including filters - has noise generator and sound intensity meter, connected in accordance with type of measurement to be made
DE102010041775A1 (en) Method for adjusting a hearing device with percentile analysis and fitting device
DE2941817C2 (en) Measuring method in the auditory canal of an ear and device for carrying out the measuring method
DE4111820C2 (en)
DE102016104598A1 (en) Demonstration device for hearing aids
EP2897383A1 (en) Method and device for analysis of hearing aid settings
CH707585A2 (en) Method for measuring acoustic measurements on ear of individual, involves starting measurement sequence by actuating control element to measure in ear canal in operating conditions of hearing aid, and to transfer aid in second state
DE3003852C2 (en) Arrangement for recording stereophonic audio signals
DE1512758C1 (en) Vocoder for high noise levels
CH624524A5 (en) Hearing-aid for the deaf
EP1516584A1 (en) Apparatus and method for determination of an audibility range
DE8905756U1 (en) Behind-the-ear hearing aid with ventilation to the ear canal
DE102020200752B4 (en) Method for determining a residual volume of an auditory canal

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE FR GB IT LU NL SE

17P Request for examination filed

Effective date: 19801020

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19820419

R18R Application refused (corrected)

Effective date: 19840618

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ZAPLETAL, FRITZ