EP1753264A1 - Apparatus and method for the determination of room acoustics - Google Patents

Apparatus and method for the determination of room acoustics Download PDF

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Publication number
EP1753264A1
EP1753264A1 EP06118364A EP06118364A EP1753264A1 EP 1753264 A1 EP1753264 A1 EP 1753264A1 EP 06118364 A EP06118364 A EP 06118364A EP 06118364 A EP06118364 A EP 06118364A EP 1753264 A1 EP1753264 A1 EP 1753264A1
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Prior art keywords
hearing
room
room acoustics
information
sound
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EP06118364A
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German (de)
French (fr)
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EP1753264B1 (en
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Kristin Rohrseitz
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Sivantos GmbH
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Siemens Audioligische Technik GmbH
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/70—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
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/41—Detection or adaptation of hearing aid parameters or programs to listening situation, e.g. pub, forest

Definitions

  • the present invention relates to a hearing device, in particular a hearing aid, with a sound output device for sonicating a user's hearing. Moreover, the present invention relates to a method for determining a room acoustics.
  • a hearing aid with adaptive adaptation of microphones with a phase compensation circuit is known.
  • the phase compensation is based on test sound, which is generated in a spatially determined test sound source.
  • DE 101 38 949 A1 a method and an acoustic system for influencing surround sound. It should be noted that a test signal with a known frequency response can be recorded with a measuring microphone at various positions in the direct sound field.
  • the object of the present invention is therefore to provide a hearing device with which information about a current room acoustics can be determined.
  • a corresponding method for determining information about the room acoustics is to be provided.
  • this object is achieved by a hearing device, in particular a hearing device, having a first sound output device for sonicating a user, a second sound output device, which differs from the first sound output device, for outputting a test sound into a room in which the hearing device is located , and a receiving device for receiving a response to the test sound from the room.
  • the invention provides a method for determining information about a room acoustics, by outputting a test sound by a hearing device, in particular a hearing device, into a room in which the hearing device is located, receiving a response to the test sound from the room by the hearing device and determining the information about the room acoustics from the answer.
  • information about the room acoustics can thus be obtained by the hearing device. This can then be further processed internally or externally.
  • the hearing device according to the invention has a signal generator for generating a test sound.
  • the test sound does not have to be generated via the usual signal processing device that is present in each hearing device, so that processing capacity can be saved.
  • the signal generator can be used together with the signal processing device of the hearing device on a single electronic chip be arranged. This reduces the production costs for electronics of the entire hearing device.
  • the test sound is generated in the ultrasonic range. This has the advantage that for measuring the room acoustics no audible sound is used, which can be perceived by the user of the hearing device or the hearing aid wearer.
  • the second sound output device of the hearing device according to the invention may have a membrane speaker.
  • a standard component element can be used to generate the test sound.
  • the hearing device may further comprise an analysis device for determining a room acoustics or a corresponding room acoustics information as a function of the response received in the reception device.
  • This room acoustics information can be used internally or transmitted to the outside.
  • the signal processing device of the hearing device can be adjustable by the analysis device in accordance with the determined room acoustics information.
  • the signal processing can be better adapted to the current acoustic situation for the hearing impaired.
  • the illustrated hearing aid HG has a signal generator and signal analyzer GA on.
  • a loudspeaker LS is connected, which is arranged on the surface of the hearing aid housing GH.
  • the signal generator GA and the loudspeaker LS thus represent an acoustic signal transmitter, which is installed in the hearing aid or its housing GH and for dispensing an acoustic test signal, for. B. in the ultrasonic range, is suitable.
  • the sound emitted by the loudspeaker LS reflects on the walls and objects of a room and thus transforms into a room response which can be recorded by a microphone M of the hearing aid HG.
  • This microphone M may be a conventional hearing aid microphone, but also a microphone provided specifically for recording room responses for determining the room acoustics.
  • the recorded spatial response is electrically converted in the microphone M and sent to the signal generator and analyzer GA. There it is examined in terms of room acoustics peculiarities, for example, whether the room is very echoing. The analysis then leads to room acoustics information, with which different room acoustics can be divided into different classes.
  • the hearing aid-internal signal processing SV is activated. This means that the signal processing algorithm is set according to the room acoustics. Consequently, the signal processing in the hearing aid HG is optimized for the current room acoustics. This increases the quality of the automatic adjustment of the hearing aid.
  • the acquisition of the room acoustics information and an automatic adaptation based thereon can be used not only for hearing aids, but also for other hearing devices such as headsets, headphones and the like.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Stereophonic System (AREA)

Abstract

A first sound output unit exposes the hearing of the user to sound. A second sound output unit comprised of a signal generator/signal analyzer (GA) and a loudspeaker (LS) transmits an ultrasonic test signal to the surrounding area. A microphone (M) receives an answer to the test signal. An independent claim is also included for a room acoustic determining method.

Description

Die vorliegende Erfindung betrifft eine Hörvorrichtung, insbesondere ein Hörgerät, mit einer Schallausgabeeinrichtung zum Beschallen des Gehörs eines Nutzers. Darüber hinaus betrifft die vorliegende Erfindung ein Verfahren zur Bestimmung einer Raumakustik.The present invention relates to a hearing device, in particular a hearing aid, with a sound output device for sonicating a user's hearing. Moreover, the present invention relates to a method for determining a room acoustics.

Räumlichkeiten, in denen sich ein Schwerhöriger befindet, haben sehr häufig einen wichtigen Einfluss auf den Nutzen von Hörgeräten. So kann ein Hörgeräteträger beispielsweise in einem hallenden Raum von bestimmten Signalverarbeitungsalgorithmen stärker profitieren, als in einem sehr kleinen Raum. Das Problem liegt also darin, die für eine bestimmte Raumakustik am besten geeignete Signalverarbeitung auszuwählen.Rooms in which a hearing-impaired person is very often have an important influence on the use of hearing aids. For example, a hearing aid wearer can benefit more from certain signal processing algorithms in an echoing room than in a very small space. So the problem lies in choosing the most suitable signal processing for a specific room acoustics.

So weit wie möglich wird bisweilen dieses Problem beispielsweise durch den Einsatz eines Klassifikators gelöst. Dabei wird allerdings nur die akustische Situation, also z. B. Musik oder Sprache in Störlärm, ausgewertet. Die Raumakustik als solche wird hierbei nicht berücksichtigt. Es besteht jedoch ein fundamentaler Unterschied, ob beispielsweise Musik in einem kleinen Raum oder in einer großen Halle gehört wird.As far as possible, this problem is sometimes solved, for example, by the use of a classifier. However, only the acoustic situation, ie z. As music or speech in noise, evaluated. The room acoustics as such is not taken into account here. However, there is a fundamental difference between listening to music in a small room or in a large hall, for example.

Aus der Druckschrift DE 699 08 662 T2 ist ein Hörgerät mit adaptiver Anpassung von Mikrophonen mit einer Phasenkompensationsschaltung bekannt. Die Phasenkompensation wird auf Testschall gestützt, welcher in einer räumlich festgelegten Testschallquelle erzeugt wird.From the publication DE 699 08 662 T2 For example, a hearing aid with adaptive adaptation of microphones with a phase compensation circuit is known. The phase compensation is based on test sound, which is generated in a spatially determined test sound source.

Darüber hinaus beschreibt die Druckschrift DE 101 38 949 A1 ein Verfahren und ein Akustiksystem zur Beeinflussung von Raumklang. Dort ist darauf hingewiesen, dass mit einem Messmikrophon an verschiedenen Positionen im direkten Beschallungsfeld ein Testsignal mit bekanntem Frequenzverlauf aufgenommen werden kann.In addition, the document describes DE 101 38 949 A1 a method and an acoustic system for influencing surround sound. It should be noted that a test signal with a known frequency response can be recorded with a measuring microphone at various positions in the direct sound field.

Die Aufgabe der vorliegenden Erfindung besteht somit darin, eine Hörvorrichtung bereitzustellen, mit der eine Information über eine aktuelle Raumakustik ermittelbar ist. Darüber hinaus soll ein entsprechendes Verfahren zum Bestimmen einer Information über die Raumakustik bereitgestellt werden.The object of the present invention is therefore to provide a hearing device with which information about a current room acoustics can be determined. In addition, a corresponding method for determining information about the room acoustics is to be provided.

Erfindungsgemäß wird diese Aufgabe gelöst durch eine Hörvorrichtung, insbesondere ein Hörgerät, mit einer ersten Schallausgabeeinrichtung zum Beschallen des Gehörs eines Nutzers, einer zweiten Schallausgabeeinrichtung, die sich von der ersten Schallausgabeeinrichtung unterscheidet, zum Ausgeben eines Testschalls in einen Raum, in dem sich die Hörvorrichtung befindet, und einer Empfangseinrichtung zum Empfangen einer Antwort auf den Testschall aus dem Raum.According to the invention, this object is achieved by a hearing device, in particular a hearing device, having a first sound output device for sonicating a user, a second sound output device, which differs from the first sound output device, for outputting a test sound into a room in which the hearing device is located , and a receiving device for receiving a response to the test sound from the room.

Des Weiteren wird erfindungsgemäß bereitgestellt ein Verfahren zum Bestimmen einer Information über eine Raumakustik, durch Ausgeben eines Testschalls durch eine Hörvorrichtung, insbesondere ein Hörgerät, in einen Raum, in dem sich die Hörvorrichtung befindet, Empfangen einer Antwort auf den Testschall aus dem Raum durch die Hörvorrichtung und Bestimmen der Information über die Raumakustik aus der Antwort.Furthermore, the invention provides a method for determining information about a room acoustics, by outputting a test sound by a hearing device, in particular a hearing device, into a room in which the hearing device is located, receiving a response to the test sound from the room by the hearing device and determining the information about the room acoustics from the answer.

In vorteilhafter Weise kann somit durch die Hörvorrichtung eine Information über die Raumakustik gewonnen werden. Diese lässt sich dann intern oder extern weiterverarbeiten.In an advantageous manner, information about the room acoustics can thus be obtained by the hearing device. This can then be further processed internally or externally.

Vorzugsweise besitzt die erfindungsgemäße Hörvorrichtung einen Signalgenerator zum Erzeugen eines Testschalls. Damit muss der Testschall nicht über die übliche Signalverarbeitungseinrichtung, die in jeder Hörvorrichtung vorhanden ist, erzeugt werden, so dass Verarbeitungskapazität eingespart werden kann.Preferably, the hearing device according to the invention has a signal generator for generating a test sound. Thus, the test sound does not have to be generated via the usual signal processing device that is present in each hearing device, so that processing capacity can be saved.

Der Signalgenerator kann zusammen mit der Signalverarbeitungseinrichtung der Hörvorrichtung auf einem einzigen Elektronikchip angeordnet sein. Dadurch mindern sich die Herstellungskosten für Elektronik der gesamten Hörvorrichtung.The signal generator can be used together with the signal processing device of the hearing device on a single electronic chip be arranged. This reduces the production costs for electronics of the entire hearing device.

Entsprechend einer weiteren bevorzugten Ausführungsform wird der Testschall im Ultraschallbereich erzeugt. Dies hat den Vorteil, dass zum Ausmessen der Raumakustik kein hörbarer Schall verwendet wird, der vom Nutzer der Hörvorrichtung bzw. dem Hörgeräteträger wahrgenommen werden kann.According to a further preferred embodiment, the test sound is generated in the ultrasonic range. This has the advantage that for measuring the room acoustics no audible sound is used, which can be perceived by the user of the hearing device or the hearing aid wearer.

Die zweite Schallausgabeeinrichtung der erfindungsgemäßen Hörvorrichtung kann einen Membranlautsprecher aufweisen. Damit kann zur Erzeugung des Testschalls ein Standardbauteilelement verwendet werden.The second sound output device of the hearing device according to the invention may have a membrane speaker. Thus, a standard component element can be used to generate the test sound.

Die Hörvorrichtung kann ferner eine Analyseeinrichtung zum Ermitteln einer Raumakustik bzw. einer entsprechenden Raumakustikinformation in Abhängigkeit von der in der Empfangseinrichtung empfangenen Antwort aufweisen. Diese Raumakustikinformation kann intern genutzt oder nach außen übertragen werden.The hearing device may further comprise an analysis device for determining a room acoustics or a corresponding room acoustics information as a function of the response received in the reception device. This room acoustics information can be used internally or transmitted to the outside.

Die Signalverarbeitungseinrichtung der Hörvorrichtung kann durch die Analyseeinrichtung entsprechend der ermittelten Raumakustikinformation einstellbar sein. In vorteilhafter Weise kann somit die Signalverarbeitung besser an die aktuelle akustische Situation für den Schwerhörigen angepasst werden.The signal processing device of the hearing device can be adjustable by the analysis device in accordance with the determined room acoustics information. Advantageously, thus the signal processing can be better adapted to the current acoustic situation for the hearing impaired.

Die vorliegende Erfindung wird nun anhand der beigefügten Zeichnung näher erläutert, die ein Prinzipschaltbild eines erfindungsgemäßen Hörgeräts zeigt.The present invention will now be explained in more detail with reference to the accompanying drawing, which shows a schematic diagram of a hearing aid according to the invention.

Das nachfolgend näher geschilderte Ausführungsbeispiel stellt eine bevorzugte Ausführungsform der vorliegenden Erfindung dar.The embodiment described in more detail below represents a preferred embodiment of the present invention.

Gemäß der schematischen Skizze der beigefügten FIG weist das dargestellte Hörgerät HG einen Signalgenerator und Signalanalysator GA auf. An diesen Signalgenerator und -analysator GA ist ein Lautsprecher LS angeschlossen, der an der Oberfläche des Hörgerätegehäuses GH angeordnet ist. Der Signalgenerator GA und der Lautsprecher LS stellen somit einen akustischen Signalgeber dar, der in das Hörgerät bzw. dessen Gehäuse GH eingebaut ist und sich zur Abgabe eines akustischen Testsignals, z. B. im Ultraschallbereich, eignet.According to the schematic sketch of the attached FIG, the illustrated hearing aid HG has a signal generator and signal analyzer GA on. To this signal generator and analyzer GA a loudspeaker LS is connected, which is arranged on the surface of the hearing aid housing GH. The signal generator GA and the loudspeaker LS thus represent an acoustic signal transmitter, which is installed in the hearing aid or its housing GH and for dispensing an acoustic test signal, for. B. in the ultrasonic range, is suitable.

Der vom Lautsprecher LS abgestrahlte Schall reflektiert an den Wänden und Gegenständen eines Raums und wandelt sich so zu einer Raumantwort, die von einem Mikrofon M des Hörgeräts HG aufgenommen werden kann. Dieses Mikrofon M kann ein übliches Hörgerätemikrofon, aber auch ein speziell für die Aufnahme von Raumantworten zur Bestimmung der Raumakustik bereitgestelltes Mikrofon sein. Die aufgenommene Raumantwort wird in dem Mikrofon M elektrisch gewandelt und zu dem Signalgenerator und -analysator GA geschickt. Dort wird sie im Hinblick auf raumakustische Besonderheiten, beispielsweise dahingehend, ob der Raum sehr hallend ist, untersucht. Die Analyse führt dann zu einer Raumakustikinformation, mit der sich verschiedene Raumakustiken gegebenenfalls in verschiedene Klassen einteilen lassen.The sound emitted by the loudspeaker LS reflects on the walls and objects of a room and thus transforms into a room response which can be recorded by a microphone M of the hearing aid HG. This microphone M may be a conventional hearing aid microphone, but also a microphone provided specifically for recording room responses for determining the room acoustics. The recorded spatial response is electrically converted in the microphone M and sent to the signal generator and analyzer GA. There it is examined in terms of room acoustics peculiarities, for example, whether the room is very echoing. The analysis then leads to room acoustics information, with which different room acoustics can be divided into different classes.

Mit der gewonnen Raumakustikinformation bzw. Raumakustikklasse wird die hörgeräteinterne Signalverarbeitung SV angesteuert. Dies bedeutet, dass der Signalverarbeitungsalgorithmus entsprechend der Raumakustik eingestellt wird. Folglich wird die Signalverarbeitung im Hörgerät HG für die aktuelle Raumakustik optimiert. Dadurch steigert sich die Qualität der automatischen Anpassung des Hörgeräts.With the room acoustics information or room acoustics class gained, the hearing aid-internal signal processing SV is activated. This means that the signal processing algorithm is set according to the room acoustics. Consequently, the signal processing in the hearing aid HG is optimized for the current room acoustics. This increases the quality of the automatic adjustment of the hearing aid.

Die Gewinnung der Raumakustikinformation und eine darauf basierende automatische Anpassung kann nicht nur für Hörgeräte, sondern auch für andere Hörvorrichtungen wie beispielsweise Headsets, Kopfhörer und dergleichen verwendet werden.The acquisition of the room acoustics information and an automatic adaptation based thereon can be used not only for hearing aids, but also for other hearing devices such as headsets, headphones and the like.

Claims (10)

Hörvorrichtung - einer ersten Schallausgabeeinrichtung zum Beschallen des Gehörs eines Nutzers, gekennzeichnet durch - eine zweite Schallausgabeeinrichtung (GA, LS), die sich von der ersten Schallausgabeeinrichtung unterscheidet, zum Ausgeben eines Testschalls in einen Raum, in dem sich die Hörvorrichtung befindet, und - einer Empfangseinrichtung (M) zum Empfangen einer Antwort auf den Testschall aus dem Raum. hearing a first sound output device for sounding the hearing of a user, marked by a second sound output device (GA, LS), which differs from the first sound output device, for outputting a test sound into a room in which the hearing device is located, and - A receiving device (M) for receiving a response to the test sound from the room. Hörvorrichtung nach Anspruch 1, die einen Signalgenerator (GA) zum Erzeugen eines Testschalls aufweist.Hearing apparatus according to claim 1, comprising a signal generator (GA) for generating a test sound. Hörvorrichtung nach Anspruch 2, wobei der Signalgenerator (GA) zusammen mit einer Signalverarbeitungseinrichtung (SV) der Hörvorrichtung auf einem Elektronikchip angeordnet ist.Hearing apparatus according to claim 2, wherein the signal generator (GA) is arranged together with a signal processing device (SV) of the hearing device on an electronic chip. Hörvorrichtung nach einem der vorhergehenden Ansprüche, wobei der Testschall im Ultraschallbereich erzeugt wird.Hearing apparatus according to one of the preceding claims, wherein the test sound is generated in the ultrasonic range. Hörvorrichtung nach einem der vorhergehenden Ansprüche, wobei die zweite Schallausgabeeinrichtung (GA, LS) einen Membranlautsprecher umfasst.Hearing apparatus according to one of the preceding claims, wherein the second sound output device (GA, LS) comprises a membrane speaker. Hörvorrichtung nach einem der vorhergehenden Ansprüche, die eine Analyseeinrichtung (GA) zum Ermitteln einer Information über eine Raumakustik in Abhängigkeit von der in der Empfangseinrichtung (M) empfangenen Antwort aufweist.Hearing apparatus according to one of the preceding claims, which has an analysis device (GA) for determining information about room acoustics as a function of the response received in the receiving device (M). Hörvorrichtung nach Anspruch 6, wobei mit der Analyseeinrichtung (GA) die Signalverarbeitungseinrichtung (SV) der Hörvorrichtung entsprechend der ermittelten Information einstellbar ist.Hearing apparatus according to claim 6, wherein the signal processing device (SV) of the hearing device is adjustable in accordance with the determined information with the analysis device (GA). Verfahren zum Bestimmen einer Information über eine Raumakustik,
gekennzeichnet durch - Ausgeben eines Testschalls durch eine Hörvorrichtung, insbesondere ein Hörgerät (HG), in einen Raum, in dem sich die Hörvorrichtung befindet, - Empfangen einer Antwort auf den Testschall aus dem Raum durch die Hörvorrichtung und - Bestimmen der Information über die Raumakustik aus der Antwort. Method for determining information about room acoustics,
marked by Outputting a test sound by a hearing device, in particular a hearing aid (HG), into a room in which the hearing device is located, - Receiving a response to the test sound from the room through the hearing and - Determining the information about the room acoustics from the answer. Verfahren nach Anspruch 8, wobei die Information über die Raumakustik durch die Hörvorrichtung intern bestimmt wird.The method of claim 8, wherein the information about the room acoustics is determined internally by the hearing device. Verfahren nach Anspruch 8 oder 9, wobei aufgrund der Information über die Raumakustik die Signalverarbeitung der Hörvorrichtung eingestellt wird.The method of claim 8 or 9, wherein based on the information about the room acoustics, the signal processing of the hearing device is adjusted.
EP06118364A 2005-08-10 2006-08-03 Hearing device and method for the determination of room acoustics Not-in-force EP1753264B1 (en)

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DE102008055920B3 (en) * 2008-11-05 2010-04-01 Siemens Medical Instruments Pte. Ltd. Hearing device system for determining e.g. damping information, of living room for hearing impaired person, has remote control connected with acoustic box via wireless communication and with hearing devices via wireless transmission
WO2012010218A1 (en) 2010-07-23 2012-01-26 Phonak Ag Hearing system and method for operating a hearing system
US9167359B2 (en) 2010-07-23 2015-10-20 Sonova Ag Hearing system and method for operating a hearing system
DE102021204939A1 (en) 2021-05-17 2022-11-17 Robert Bosch Gesellschaft mit beschränkter Haftung Method and device for detecting the fit of headphones

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DE102005037895B3 (en) 2007-03-29
US20070036365A1 (en) 2007-02-15
EP1753264B1 (en) 2008-10-08
ATE410903T1 (en) 2008-10-15
US7916881B2 (en) 2011-03-29
DK1753264T3 (en) 2009-01-26
DE502006001722D1 (en) 2008-11-20

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