DE19634984A1 - Hearing aid with several electroacoustic transducer systems - Google Patents

Hearing aid with several electroacoustic transducer systems

Info

Publication number
DE19634984A1
DE19634984A1 DE19634984A DE19634984A DE19634984A1 DE 19634984 A1 DE19634984 A1 DE 19634984A1 DE 19634984 A DE19634984 A DE 19634984A DE 19634984 A DE19634984 A DE 19634984A DE 19634984 A1 DE19634984 A1 DE 19634984A1
Authority
DE
Germany
Prior art keywords
hearing aid
electroacoustic transducers
hearing
electroacoustic transducer
transducer systems
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Withdrawn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
DE19634984A
Other languages
German (de)
Inventor
Harald Dipl Ing Austel
Lutz-Achim Prof Dr Ing Gaeng
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.)
AUSTEL, HARALD, DIPL.-ING., 65719 HOFHEIM, DE GAEN
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19634984A priority Critical patent/DE19634984A1/en
Publication of DE19634984A1 publication Critical patent/DE19634984A1/en
Withdrawn legal-status Critical Current

Links

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
    • H04R25/65—Housing parts, e.g. shells, tips or moulds, or their manufacture
    • 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
    • H04R25/60—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/023—Completely in the canal [CIC] hearing aids
    • 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
    • H04R25/505—Customised settings for obtaining desired overall acoustical characteristics using digital signal processing
    • H04R25/507—Customised settings for obtaining desired overall acoustical characteristics using digital signal processing implemented by neural network or fuzzy logic

Abstract

The hearing aid has the miniature loudspeaker normally employed replaced by a number of electroacoustic transducers embedded in the moulded plastics of the hearing aid module which fits within or behind the ear. The electroacoustic transducers may be provided using a multi-layer foil structure and are operated adjacent their resonance range, with a fuzzy logic used for matching to the rest of the hearing range.

Description

Aufgabe eines Hörgerätes ist es, den Schalldruckpegel von Sprache und allen anderen gewünschten akustischen Signalen in den Hörbereich von Hörbehinderten zu verla­ gern, also so zu verstärken, daß er zwischen der individuellen Hör- und Unbehaglich­ keitsschwelle liegt.The task of a hearing aid is the sound pressure level of speech and all others desired acoustic signals in the hearing range of hearing impaired like to amplify so that he is between the individual hearing and uncomfortable threshold lies.

Prinzipiell werden auf dem Markt drei Hörgerätebauarten angeboten:
1. Taschenhörgeräte 2. "Hinter dem Ohr"-Hörgeräte und 3. "In dem Ohr"-Hörgeräte. Während sich die Taschenhörgeräte durch hohe Verstärkungen und gute akustische Eigenschaften auszeichnen, nimmt der Marktanteil dieser Geräte infolge geringer Komfortabilität und aus ästhetischen Gründen permanent ab. Die "Hinter-" und "In dem Ohr"-Hörgeräte sind infolge des geringeren Abstandes zwischen Mikrofon und Minia­ turlautsprecher bezüglich der akustischen Verstärkung begrenzt. (Bei Hörgeräteakusti­ kern werden diese Miniaturlautsprecher einfach als Hörer und hier in der Patentbe­ schreibung zukünftig als elektroakustische Wandler bezeichnet). Das geringe Batterie­ volumen macht elektroakustische Wandler mit großem Wirkungsgrad erforderlich, was aber auf Kosten der Übertragungsqualität geht, so daß diese Hörgeräte häufig nur als Unterstützung zum Lippenlesen betrachtet werden können. Alle elektroakustischen Wandler der "Hinter-" und "In dem Ohr"-Hörgeräte (Klasse-A, Klasse-B und Klasse-D) werden durch "Peek-Clipper" oder "Automatic Gain Control" bezüglich des Ausgangs­ schalldruckes begrenzt, was energetisch vorteilhaft ist, aber zu großen Verzerrungen führt.In principle, three types of hearing aids are available on the market:
1. Pocket hearing aids 2. "Behind the ear" hearing aids and 3. "In the ear" hearing aids. While the pocket hearing aids are characterized by high reinforcements and good acoustic properties, the market share of these devices is constantly decreasing due to poor comfort and for aesthetic reasons. The "rear" and "in the ear" hearing aids are limited due to the smaller distance between the microphone and miniature speaker in terms of acoustic amplification. (In the case of hearing aid acousticians, these miniature loudspeakers are simply referred to as listeners and here in the patent description in the future they will be referred to as electroacoustic transducers). The small battery volume makes electro-acoustic transducers with high efficiency required, but this is at the expense of the transmission quality, so that these hearing aids can often only be regarded as a support for lip reading. All electroacoustic transducers of the "rear" and "in the ear" hearing aids (class A, class B and class D) are limited by "peek clipper" or "automatic gain control" with regard to the output sound pressure, which is energetically is advantageous, but leads to large distortions.

Der Erfindung liegt Aufgabe zu Grunde, "Hinter-" und "In dem Ohr"-Hörgeräte mit we­ sentlich besserem akustischen Verhalten und geringem Stromverbrauch zu entwickeln.The invention is based on the object, "behind" and "in the ear" hearing aids with we develop significantly better acoustic behavior and low power consumption.

Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß anstelle eines Miniaturlaut­ sprechers mehrere gleiche und/oder unterschiedliche elektroakustische Wandler ver­ wendet und in der Otoplastik integriert werden. Ähnlich wie bei Lautsprecherboxen ist mit mehreren Schallquellen ein wesentlich besseres Klangbild erreichbar, als wenn nur ein einzelner elektroakustischer Wandler verwendet wird.The object is achieved in that instead of a miniature sound speaker several identical and / or different electroacoustic transducers ver turns and be integrated into the otoplastic. Similar to loudspeakers with several sound sources a much better sound can be achieved than if only a single electroacoustic transducer is used.

Durch die Kombination dieses aus mehreren elektroakustischen Wandlern bestehen­ den Wiedergabesystems mit einer auf der Fuzzy Logik basierenden Ansteuerung kön­ ne die sonst üblichen Frequenzweichen und Filter eingespart und die elektroakusti­ schen Wandler nahe ihrer Resonanzfrequenz betrieben werden, was einen extrem niedrigen Stromverbrauch zur Folge hat.By combining this consist of several electroacoustic transducers the playback system with a control based on fuzzy logic ne the usual crossovers and filters saved and the electro-acoustics be operated near their resonance frequency, which is extremely low power consumption.

Mit einem sogenannten "Neuro-Fuzzy-Input-Gain-Control" können Frequenzgang und Schalldruck an den individuellen Hörverlust optimal angepaßt und gleichzeitig Ferti­ gungsabweichungen der elektroakustischen Wandler ausgeglichen werden. With a so-called "Neuro Fuzzy Input Gain Control" frequency response and Sound pressure optimally adapted to the individual hearing loss and at the same time ferti deviations of the electroacoustic transducers can be compensated.  

Dank neuentwickelter mikrotechnischer Verfahren wie z. B. der LIGA-Technik sind aku­ stische Wandlersysteme in der benötigten Größe kostengünstig herstellbar.Thanks to newly developed microtechnical processes such as B. the LIGA technology are acu tical converter systems in the required size can be produced inexpensively.

Fig. 1 zeigt ein Ausführungsbeispiel in der "Hinter dem Ohr"-Bauart. Durch die Verle­ gung des Wandlersystems (1) aus dem Gehäuse (2) in das Ohrpaßstück (3) vergrößert sich der Abstand zwischen Mikrofon (4) und Schallquelle, was höhere Verstärkungen zuläßt; gleichzeitig verbessert sich die Knochenleitungsübertragung. Desweiteren kön­ nen durch den Wegfall des Hörervolumens kleinere Gehäuse (1) oder zusätzliche Batterien verwendet werden. Fig. 1 shows an embodiment in the "behind the ear" type. By laying the transducer system ( 1 ) from the housing ( 2 ) in the earmold ( 3 ) increases the distance between the microphone ( 4 ) and the sound source, which allows higher gains; at the same time, bone conduction improves. Furthermore, smaller housings ( 1 ) or additional batteries can be used due to the omission of the handset volume.

Da das akustische Ausgangssignal nicht im Gehäuse, sondern im Ohrpaßstück erzeugt wird, entfällt der sonst übliche Kunststoffschlauch, der Tragekomfort und Akustik ver­ schlechtert. Statt dessen ist eine elektrische Verbindung (5) nötig, die aus höchstflexi­ blem Material oder als Ohrschmuck realisierbar ist.Since the acoustic output signal is not generated in the housing but in the earmold, there is no need for the usual plastic tube, which worsens comfort and acoustics. Instead, an electrical connection ( 5 ) is required, which can be realized from highly flexible material or as earrings.

Das Ohrpaßstück besteht aus der individuellen Außenform (6) und einem stets identi­ schen Kernstück (7), in welchem die elektroakustischen Wandler (I) - hier als Mehr­ schichtfolienlautsprecher auf Spiralband realisiert -, Dämpfungs- und Belüftungssy­ steme untergebracht sind.The earmold consists of the individual outer shape ( 6 ) and an always identical core ( 7 ), in which the electroacoustic transducer (I) - realized here as a multilayer film loudspeaker on a spiral band -, damping and ventilation systems are housed.

Claims (5)

1. Hörgerät dadurch gekennzeichnet, daß es mit mehreren elektroakustischen Wandlern arbeitet.1. Hearing aid characterized in that it works with several electroacoustic transducers. 2. Hörgerät nach Anspruch 1, dadurch gekennzeichnet, daß diese elektroakustischen Wandler im Ohrpaßstück untergebracht sind.2. Hearing aid according to claim 1, characterized in that this electroacoustic transducers are housed in the earmold. 3. Hörgerät nach Anspruch 1, dadurch gekennzeichnet, daß diese elektroakustischen Wandler in Mehrschichtfolientechnik aufgebaut sind.3. Hearing aid according to claim 1, characterized in that this electroacoustic transducers are constructed in multilayer film technology. 4. Hörgerät nach Anspruch 1, dadurch gekennzeichnet, daß diese elektroakustischen Wandler nahe des Resonanzbereiches betrieben werden.4. Hearing aid according to claim 1, characterized in that this electroacoustic transducers operated near the resonance range. 5. Hörgerät nach Anspruch 1, dadurch gekennzeichnet, daß zur Anpassung an den Resthörbereich Fuzzy-Logik eingesetzt wird.5. Hearing aid according to claim 1, characterized in that for adaptation to the Residual hearing range fuzzy logic is used.
DE19634984A 1996-08-29 1996-08-29 Hearing aid with several electroacoustic transducer systems Withdrawn DE19634984A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19634984A DE19634984A1 (en) 1996-08-29 1996-08-29 Hearing aid with several electroacoustic transducer systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19634984A DE19634984A1 (en) 1996-08-29 1996-08-29 Hearing aid with several electroacoustic transducer systems

Publications (1)

Publication Number Publication Date
DE19634984A1 true DE19634984A1 (en) 1998-03-05

Family

ID=7804057

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19634984A Withdrawn DE19634984A1 (en) 1996-08-29 1996-08-29 Hearing aid with several electroacoustic transducer systems

Country Status (1)

Country Link
DE (1) DE19634984A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19947839A1 (en) * 1999-10-05 2001-01-25 Siemens Audiologische Technik Speech recognition in hearing aid involves selecting speech and/or noise specific parameters of digital timer signal, processing parameter-related values according to principle of fuzzy logic
US7369670B2 (en) 2004-08-25 2008-05-06 Phonak Ag Earplug and method for manufacturing the same
US7844065B2 (en) 2005-01-14 2010-11-30 Phonak Ag Hearing instrument
EP2432254A2 (en) 2005-01-14 2012-03-21 Phonak AG Hearing instrument

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19947839A1 (en) * 1999-10-05 2001-01-25 Siemens Audiologische Technik Speech recognition in hearing aid involves selecting speech and/or noise specific parameters of digital timer signal, processing parameter-related values according to principle of fuzzy logic
US7369670B2 (en) 2004-08-25 2008-05-06 Phonak Ag Earplug and method for manufacturing the same
US7844065B2 (en) 2005-01-14 2010-11-30 Phonak Ag Hearing instrument
EP2432254A2 (en) 2005-01-14 2012-03-21 Phonak AG Hearing instrument
US8437489B2 (en) 2005-01-14 2013-05-07 Phonak Ag Hearing instrument

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Legal Events

Date Code Title Description
8127 New person/name/address of the applicant

Owner name: AUSTEL, HARALD, DIPL.-ING., 65719 HOFHEIM, DE GAEN

8139 Disposal/non-payment of the annual fee