EP1575335A2 - Transmitting device for transmitting signals to a hearing aid, corresponding method and hearing aid - Google Patents
Transmitting device for transmitting signals to a hearing aid, corresponding method and hearing aid Download PDFInfo
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- EP1575335A2 EP1575335A2 EP05101232A EP05101232A EP1575335A2 EP 1575335 A2 EP1575335 A2 EP 1575335A2 EP 05101232 A EP05101232 A EP 05101232A EP 05101232 A EP05101232 A EP 05101232A EP 1575335 A2 EP1575335 A2 EP 1575335A2
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- Prior art keywords
- signal
- hearing aid
- envelope
- sound signal
- transmitting
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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
- H04R25/55—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired
- H04R25/554—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired using a wireless connection, e.g. between microphone and amplifier or using Tcoils
Definitions
- the present invention relates to a transmitting device for Sending signals to a hearing aid with a microphone device for recording a sound signal and a transmitting device for transmitting an electromagnetic signal. Moreover, the present invention relates to a hearing aid device with a microphone device for recording a sound signal, a signal generating means for Generating a hearing aid output signal from the recorded Sound signal and a receiving device for receiving a electromagnetic signal. Furthermore, the present invention relates Invention corresponding method for transmitting signals to a hearing aid or to operate a hearing aid.
- FM systems are known with which electromagnetic Signals are transmitted to a hearing aid can.
- the stations used there are not about hearing aids.
- a hearing aid in which the listener outside the hearing aid housing located in an earmold.
- the connection between a Amplifier of the hearing aid and the handset is wireless.
- One from the microphone recorded sound signal is known in the Way converted into an electrical signal and with a Amplifier amplified.
- the wirelessly transmitted signal becomes taken with a corresponding receiver of the earmold and the recovered audio-frequency signals forwarded to the listener.
- the object of the present invention is therefore to an improved hearing of weak sound signals for hearing aid wearers to ensure.
- this object is achieved by a transmitting device for sending signals to a hearing aid with a Microphone device for recording a sound signal, a Transmitting device for transmitting an electromagnetic signal and a signal processing means for extracting a Envelope from the recorded sound signal and deploy an envelope signal for the transmitting device, so that the envelope signal is electromagnetically transferable.
- the present invention provided a method for transmitting signals to a hearing aid by recording a sound signal and sending a sound electromagnetic signal, as well as extracting an envelope from the recorded sound signal under provision an envelope signal and electromagnetic transmission of the The envelope signal.
- a hearing aid device with a microphone device for recording a sound signal, a signal generating means for Generating a hearing aid output signal from the recorded Sound signal and a receiving device for receiving a electromagnetic signal, the electromagnetic Signal an envelope of an original signal on which the from based on the microphone device recorded sound signal, includes and the envelope in the signal generator Considerable when generating the hearing aid output signal is.
- a corresponding one is provided Method for operating a hearing aid by picking up a hearing aid Sound signal, generating a hearing aid output signal from the recorded sound signal and receiving an electromagnetic Signal, wherein the electromagnetic signal a Envelope of an original signal on which the recorded Sound signal is based, includes and the envelope when generating the hearing aid output signal is taken into account.
- the transmitting device with the signal processing device several envelopes in different frequency bands from the recorded sound signal be extracted.
- the to be transmitted Reduce information to a minimum.
- the transmitting device can be used as a hearing aid or as a body be designed portable accessory.
- So concrete could be a pocket hearing device or, for example, a ballpoint pen-shaped Sound recording unit can be used as a transmitter.
- the Microphone device comprises a directional microphone. That's it possible that the hearing aid wearer targeted a sound source hears, even if he his hearing aid on omnidirectional operation has switched.
- the signal generating device On the receiving side is in a particular embodiment of the present invention in the signal generating device the Recorded sound signal according to the envelope or the Envelopes modulated. Even if the recorded sound signal then substantially corresponds to a noise signal can through the envelope modulation quite understandable Signal are generated. The better of course the recorded Sound signal is, the better the modulated signal in its sound quality.
- the hearing aid device is also designed as a hearing aid. Due to the low necessary data rate is thus a transmission of hearing aid to hearing aid possible.
- the transmission power is advantageously so chosen that the electromagnetic envelope signals only a few meters are transferred. In this Distance are also signals over the acoustic Path for example in usual conversation and typical Ambient conditions still perceptible.
- FIG. 1 In the figure is the communication between two hearing aids HGS and HGE sketched.
- One of the two hearing aids HGS acts as transmitter and the other HGE hearing aid as receiver.
- a sound source Q outputs a sound signal qs.
- This Sound signal qs enters an electromagnetic path em and an acoustic path ak.
- the electromagnetic path leads first to a microphone MS.
- the output signal of the microphone MS is spectrally decomposed in a filter bank FB and with an envelope extractor HE will be from all frequency bands Extracted envelopes.
- the envelope signals will be supplied to a transmitter S, the envelopes h electromagnetic to the receiving-side hearing aid HGE or its receiver E transfers.
- the source signal qs with a Noise n which alters the envelope of the useful signal qs or destroyed, charged.
- the sum signal qs + n is picked up by the microphone ME of the hearing aid HGE.
- the output signal of the microphone ME is also in a filter bank FB decomposed into frequency bands.
- an envelope restorer HR will be the original envelope of the Source signal qs restored as far as possible by the envelopes received by the receiver E are used.
- This restored signal is as output as with restored envelope to a receiver H of the receiving side Hearing device forwarded, so that a corresponding acoustic signal can be output.
- the transmitter S can be made relatively weak. Suffice it a transmission range in which the hearing aid wearer can at least still receive a part of the sound energy emitted by the sound source in a direct way. Typically, a range of less than 10 m is sufficient for this purpose.
- the transmitter thus transmits only the envelope h of the output signal possibly frequency-specific in several bands to the receiver, which in turn impresses its directly received, acoustic signal spectrum containing direct sound components, and thus represents the signal emitted by the sound source Q much better as recorded by the receiver HGE hearing device, noisy on the transmission line direct signal.
- the data rate for the electromagnetic transmission of some Envelopes can be that way versus one else necessary data rate for the transmission of a full audio signal be significantly reduced.
- a reduction of the data rate by a factor of 40 to 400 may be in this type of transmission can be achieved, since here is a sampling frequency of 100 Hz for the envelope transmission as a rule is sufficient.
- the microphone MS of the transmitting side hearing aid HGS can be the conventional Hearing Aid Microphone or better an additional one Bone conduction microphone, which is the voice signal without interference can record.
- the transmitting unit must not be designed as a hearing aid. Rather, it is too possible, the envelope transmitter according to the invention in any To integrate accessory. This can then be in near a sound source, z. B. on the TV, in the Center of a conference table, etc., place or on the body wear.
- the envelope transmitter can take the form own a pen and worn in a shirt pocket become.
Abstract
Description
Die vorliegende Erfindung betrifft eine Sendevorrichtung zum Senden von Signalen an ein Hörgerät mit einer Mikrofoneinrichtung zum Aufnehmen eines Schallsignals und einer Sendeeinrichtung zum Senden eines elektromagnetischen Signals. Darüber hinaus betrifft die vorliegende Erfindung eine Hörhilfevorrichtung mit einer Mikrofoneinrichtung zum Aufnehmen eines Schallsignals, einer Signalerzeugungseinrichtung zum Erzeugen eines Hörhilfeausgangssignals aus dem aufgenommenen Schallsignal und einer Empfangseinrichtung zum Empfangen eines elektromagnetischen Signals. Ferner betrifft die vorliegende Erfindung entsprechende Verfahren zum Senden von Signalen an ein Hörgerät bzw. zum Betreiben eines Hörgeräts.The present invention relates to a transmitting device for Sending signals to a hearing aid with a microphone device for recording a sound signal and a transmitting device for transmitting an electromagnetic signal. Moreover, the present invention relates to a hearing aid device with a microphone device for recording a sound signal, a signal generating means for Generating a hearing aid output signal from the recorded Sound signal and a receiving device for receiving a electromagnetic signal. Furthermore, the present invention relates Invention corresponding method for transmitting signals to a hearing aid or to operate a hearing aid.
In gewissen Situationen ist es für einen Hörgeräteträger nicht ausreichend, wenn er nur die akustisch empfangenen Signale verstärkt dargeboten bekommt. Für den Hörgeräteträger ist es dann nicht möglich, das Signal dieser Schallquelle zu hören bzw. zu verstehen. In diesen Fällen wäre es angebracht, das Quellsignal, z. B. ein Ausgangssignal des Hörgerätemikrofons eines Gesprächspartners, der ebenfalls ein Hörgerät trägt, oder das Ausgangssignal eines Audiogeräts, direkt von dieser Quelle zum Hörgerät des Hörgeräteträgers zu übertragen. Die mögliche Sende-Datenrate heutiger und mittelfristig realisierbarer Hörgeräte liegt jedoch - auch aus Gründen des Energieverbrauchs - weit unterhalb der dafür nötigen Datenrate.In certain situations, it is for a hearing aid wearer not sufficient, if only the acoustically received signals gets reinforced presented. For the hearing aid wearer is it then not possible to send the signal to this sound source? hear or understand. In these cases, it would be appropriate the source signal, z. B. an output signal of the hearing aid microphone a conversation partner who is also a hearing aid carries, or the output signal of an audio device, directly from transmit this source to the hearing aid of the hearing aid wearer. The possible transmission data rate today and in the medium term However, realizable hearing aids lies - also for the sake of Energy consumption - far below the necessary data rate.
In diesem Zusammenhang sind FM-Systeme bekannt, mit denen elektromagnetische Signale zu einem Hörgerät übertragen werden können. Bei den dort verwendeten Sendern handelt es sich jedoch nicht um Hörgeräte. In this context, FM systems are known with which electromagnetic Signals are transmitted to a hearing aid can. However, the stations used there are not about hearing aids.
Aus der Druckschrift DE 35 08 830 A1 ist ein Hörgerät bekannt, bei dem sich der Hörer außerhalb des Hörgerätegehäuses in einer Otoplastik befindet. Die Verbindung zwischen einem Verstärker des Hörgeräts und dem Hörer erfolgt drahtlos. Ein von dem Mikrofon aufgenommenes Schallsignal wird in bekannter Weise in ein elektrisches Signal umgewandelt und mit einem Verstärker verstärkt. Das drahtlos übermittelte Signal wird mit einem entsprechenden Empfänger der Otoplastik aufgenommen und die gewonnen tonfrequenten Signale an den Hörer weitergeleitet.From the document DE 35 08 830 A1 a hearing aid is known, in which the listener outside the hearing aid housing located in an earmold. The connection between a Amplifier of the hearing aid and the handset is wireless. One from the microphone recorded sound signal is known in the Way converted into an electrical signal and with a Amplifier amplified. The wirelessly transmitted signal becomes taken with a corresponding receiver of the earmold and the recovered audio-frequency signals forwarded to the listener.
Die Aufgabe der vorliegenden Erfindung besteht somit darin, ein verbessertes Hören von schwachen Schallsignalen für Hörgeräteträger zu gewährleisten.The object of the present invention is therefore to an improved hearing of weak sound signals for hearing aid wearers to ensure.
Erfindungsgemäß wird diese Aufgabe gelöst durch eine Sendevorrichtung zum Senden von Signalen an ein Hörgerät mit einer Mikrofoneinrichtung zum Aufnehmen eines Schallsignals, einer Sendeeinrichtung zum Senden eines elektromagnetischen Signals und einer Signalverarbeitungseinrichtung zum Extrahieren einer Hüllkurve aus dem aufgenommenen Schallsignal und Bereitstellen eines Hüllkurvensignals für die Sendeeinrichtung, so dass das Hüllkurvensignal elektromagnetisch übertragbar ist.According to the invention, this object is achieved by a transmitting device for sending signals to a hearing aid with a Microphone device for recording a sound signal, a Transmitting device for transmitting an electromagnetic signal and a signal processing means for extracting a Envelope from the recorded sound signal and deploy an envelope signal for the transmitting device, so that the envelope signal is electromagnetically transferable.
Darüber hinaus ist entsprechend der vorliegenden Erfindung vorgesehen ein Verfahren zum Senden von Signalen an ein Hörgerät durch Aufnehmen eines Schallsignals und Senden eines elektromagnetischen Signals, sowie Extrahieren einer Hüllkurve aus dem aufgenommenen Schallsignal unter Bereitstellung eines Hüllkurvensignals und elektromagnetisches Senden des Hüllkurvensignals.In addition, according to the present invention provided a method for transmitting signals to a hearing aid by recording a sound signal and sending a sound electromagnetic signal, as well as extracting an envelope from the recorded sound signal under provision an envelope signal and electromagnetic transmission of the The envelope signal.
Des Weiteren wird die genannte Aufgabe gelöst durch eine Hörhilfevorrichtung mit einer Mikrofoneinrichtung zum Aufnehmen eines Schallsignals, einer Signalerzeugungseinrichtung zum Erzeugen eines Hörhilfeausgangssignals aus dem aufgenommenen Schallsignal und einer Empfangseinrichtung zum Empfangen eines elektromagnetischen Signals, wobei das elektromagnetische Signal eine Hüllkurve eines Originalsignals, auf dem das von der Mikrofoneinrichtung aufgenommene Schallsignal basiert, umfasst und die Hüllkurve in der Signalerzeugungseinrichtung beim Erzeugen des Hörhilfeausgangssignals berücksichtigbar ist.Furthermore, the stated object is achieved by a hearing aid device with a microphone device for recording a sound signal, a signal generating means for Generating a hearing aid output signal from the recorded Sound signal and a receiving device for receiving a electromagnetic signal, the electromagnetic Signal an envelope of an original signal on which the from based on the microphone device recorded sound signal, includes and the envelope in the signal generator Considerable when generating the hearing aid output signal is.
Ebenso wird erfindungsgemäß bereitgestellt ein entsprechendes Verfahren zum Betreiben eines Hörgeräts durch Aufnehmen eines Schallsignals, Erzeugen eines Hörhilfeausgangssignals aus dem aufgenommenen Schallsignal und Empfangen eines elektromagnetischen Signals, wobei das elektromagnetische Signal eine Hüllkurve eines Originalsignals, auf dem das aufgenommene Schallsignal basiert, umfasst und die Hüllkurve beim Erzeugen des Hörhilfeausgangssignals berücksichtigt wird.Likewise, according to the invention, a corresponding one is provided Method for operating a hearing aid by picking up a hearing aid Sound signal, generating a hearing aid output signal from the recorded sound signal and receiving an electromagnetic Signal, wherein the electromagnetic signal a Envelope of an original signal on which the recorded Sound signal is based, includes and the envelope when generating the hearing aid output signal is taken into account.
In vorteilhafter Weise ist es somit möglich, ein datenarmes Hüllkurvensignal anstelle des gesamten Audiosignals zu übertragen und das Spektrum des Rest-Direktschalls zur Gewährleistung einer akzeptablen Klangqualität zu nutzen.Advantageously, it is thus possible to have a low data content Envelope signal instead of the entire audio signal to transmit and the range of residual direct sound to ensure to use an acceptable sound quality.
Vorzugsweise können in der erfindungsgemäßen Sendevorrichtung mit der Signalverarbeitungseinrichtung mehrere Hüllkurven in verschiedenen Frequenzbändern aus dem aufgenommenen Schallsignal extrahiert werden. Somit lassen sich die zu übertragenden Informationen auf ein Minimum reduzieren.Preferably, in the transmitting device according to the invention with the signal processing device several envelopes in different frequency bands from the recorded sound signal be extracted. Thus, the to be transmitted Reduce information to a minimum.
Die Sendevorrichtung kann als Hörgerät oder als am Körper tragbares Accessoire ausgestaltet sein. Konkret könnte also ein Taschenhörgerät oder beispielsweise eine kugelschreiberförmige Schallaufnahmeeinheit als Sender eingesetzt werden.The transmitting device can be used as a hearing aid or as a body be designed portable accessory. So concrete could be a pocket hearing device or, for example, a ballpoint pen-shaped Sound recording unit can be used as a transmitter.
Sehr vorteilhaft ist auch eine Ausgestaltung, bei der die Mikrofoneinrichtung ein Richtmikrofon umfasst. Damit ist es möglich, dass der Hörgeräteträger gezielt eine Schallquelle hört, auch wenn er sein Hörgerät auf omnidirektionalen Betrieb geschaltet hat. Very advantageous is also an embodiment in which the Microphone device comprises a directional microphone. That's it possible that the hearing aid wearer targeted a sound source hears, even if he his hearing aid on omnidirectional operation has switched.
Empfangsseitig wird bei einer besonderen Ausgestaltung der vorliegenden Erfindung in der Signalerzeugungseinrichtung das aufgenommene Schallsignal entsprechend der Hüllkurve oder den Hüllkurven moduliert. Selbst wenn das aufgenommene Schallsignal dann im Wesentlichen einem Rauschsignal entspricht, kann durch die Hüllkurvenmodulation ein durchaus verständliches Signal erzeugt werden. Je besser natürlich das aufgenommene Schallsignal ist, desto besser ist auch das modulierte Signal in seiner Klangqualität.On the receiving side is in a particular embodiment of the present invention in the signal generating device the Recorded sound signal according to the envelope or the Envelopes modulated. Even if the recorded sound signal then substantially corresponds to a noise signal can through the envelope modulation quite understandable Signal are generated. The better of course the recorded Sound signal is, the better the modulated signal in its sound quality.
In einer bevorzugten Ausführungsform ist auch die Hörhilfevorrichtung als Hörgerät ausgestaltet. Aufgrund der geringen notwendigen Datenrate ist somit eine Übertragung von Hörgerät zu Hörgerät möglich. Dabei wird die Sendeleistung vorteilhafterweise so gewählt, dass die elektromagnetischen Hüllkurvensignale lediglich wenige Meter übertragen werden. In diesem Abstand sind nämlich auch Signale über den akustischen Pfad beispielsweise bei üblicher Konversation und typischen Umgebungsbedingungen noch wahrnehmbar.In a preferred embodiment, the hearing aid device is also designed as a hearing aid. Due to the low necessary data rate is thus a transmission of hearing aid to hearing aid possible. In this case, the transmission power is advantageously so chosen that the electromagnetic envelope signals only a few meters are transferred. In this Distance are also signals over the acoustic Path for example in usual conversation and typical Ambient conditions still perceptible.
Die vorliegende Erfindung wird nun anhand der beigefügten Zeichnung näher erläutert, die einen Signalflussplan eines erfindungsgemäßen Übertragungssystems darstellt.The present invention will now be described with reference to the attached Drawing explained in more detail, the signal flow chart of a represents transmission system according to the invention.
Die nachfolgend näher geschilderten Ausführungsbeispiele stellen bevorzugte Ausführungsformen der vorliegenden Erfindung dar.The embodiments described in more detail below represent preferred embodiments of the present invention represents.
In der Figur ist die Kommunikation zwischen zwei Hörgeräten HGS und HGE skizzenhaft dargestellt. Eines der beiden Hörgeräte HGS wirkt hierbei als Sender und das andere Hörgerät HGE als Empfänger.In the figure is the communication between two hearing aids HGS and HGE sketched. One of the two hearing aids HGS acts as transmitter and the other HGE hearing aid as receiver.
Eine Schallquelle Q gibt ein Schallsignal qs aus. Dieses Schallsignal qs tritt einen elektromagnetischen Weg em und einen akustischen Weg ak an. Der elektromagnetische Weg führt zunächst zu einem Mikrofon MS. Das Ausgangssignal des Mikrofons MS wird in einer Filterbank FB spektral zerlegt und mit einem Hüllkurvenextraktor HE werden aus sämtlichen Frequenzbändern Hüllkurven extrahiert. Die Hüllkurvensignale werden einem Sender S zugeführt, der die Hüllkurven h elektromagnetische an das empfangsseitige Hörgerät HGE bzw. dessen Empfänger E überträgt.A sound source Q outputs a sound signal qs. This Sound signal qs enters an electromagnetic path em and an acoustic path ak. The electromagnetic path leads first to a microphone MS. The output signal of the microphone MS is spectrally decomposed in a filter bank FB and with an envelope extractor HE will be from all frequency bands Extracted envelopes. The envelope signals will be supplied to a transmitter S, the envelopes h electromagnetic to the receiving-side hearing aid HGE or its receiver E transfers.
Auf seinem akustischen Weg ak wird das Quellsignal qs mit einem Störschall n, der die Hüllkurve des Nutzsignals qs verändert bzw. zerstört, beaufschlagt. Das Summensignal qs + n wird vom Mikrofon ME des Hörgeräts HGE aufgenommen. Das Ausgangssignal des Mikrofons ME wird ebenfalls in einer Filterbank FB in Frequenzbänder zerlegt. Mit Hilfe eines Hüllkurvenrestaurators HR wird die ursprüngliche Hüllkurve des Quellsignals qs soweit wie möglich wieder hergestellt, indem die vom Empfänger E empfangenen Hüllkurven verwendet werden. Dieses restaurierte Signal wird als Ausgangssignal as mit wiederhergestellter Hüllkurve an einen Hörer H des empfangsseitigen Hörgeräts weitergeleitet, so dass ein entsprechendes akustisches Signal ausgegeben werden kann.On its acoustic path ak, the source signal qs with a Noise n, which alters the envelope of the useful signal qs or destroyed, charged. The sum signal qs + n is picked up by the microphone ME of the hearing aid HGE. The output signal of the microphone ME is also in a filter bank FB decomposed into frequency bands. With the help of an envelope restorer HR will be the original envelope of the Source signal qs restored as far as possible by the envelopes received by the receiver E are used. This restored signal is as output as with restored envelope to a receiver H of the receiving side Hearing device forwarded, so that a corresponding acoustic signal can be output.
Um ein Ausgangssignal as hoher Klangqualität zu erzielen, ist
es notwendig, dass zumindest ein Teil des Quellsignals qs über
den akustischen Weg ak übertragen wird. Daher kann der
Sender S verhältnismäßig schwach ausgelegt werden. Es genügt
eine Sendereichweite, in der der Hörgeräteträger zumindest
noch einen Teil der von der Schallquelle abgegebenen Schallenergie
auf direktem Wege empfangen kann. Typischerweise ist
hierfür eine Reichweite von unter 10 m ausreichend.
Der Sender überträgt somit nur die Hüllkurve h des abgegebenen
Signals eventuell frequenzspezifisch in mehreren Bändern
zum Empfänger, der diese wiederum seinem direkt empfangenen,
akustischen Signal-Spektrum, das Direktschall-Anteile enthält,
aufprägt und so das von der Schallquelle Q abgegebene
Signal wesentlich besser repräsentiert als das vom Empfängerhörgerät
HGE aufgenommene, auf der Übertragungsstrecke verrauschte
Direktschall-Signal.In order to obtain an output signal of high sound quality, it is necessary that at least part of the source signal qs be transmitted via the acoustic path ak. Therefore, the transmitter S can be made relatively weak. Suffice it a transmission range in which the hearing aid wearer can at least still receive a part of the sound energy emitted by the sound source in a direct way. Typically, a range of less than 10 m is sufficient for this purpose.
The transmitter thus transmits only the envelope h of the output signal possibly frequency-specific in several bands to the receiver, which in turn impresses its directly received, acoustic signal spectrum containing direct sound components, and thus represents the signal emitted by the sound source Q much better as recorded by the receiver HGE hearing device, noisy on the transmission line direct signal.
Die Datenrate für die elektromagnetische Übertragung einiger Hüllkurven kann auf diese Weise gegenüber einer ansonsten notwendigen Datenrate für die Übertragung eines vollen AudioSignals deutlich vermindert werden. Eine Reduzierung der Datenrate um den Faktor 40 bis 400 kann bei dieser Art von Übertragung durchaus erzielt werden, da hier eine Abtastfrequenz von 100 Hz für die Hüllkurvenübertragung in aller Regel ausreichend ist. Aus der Sprachsynthese ist nämlich bekannt, dass der allergrößte Teil der Information der Sprache in einigen wenigen frequenzspezifischen Hüllkurven enthalten ist. Man kann diese Hüllkurven - wie bereits erwähnt - beispielsweise Bandpass-Rauschsignalen aufprägen und so wieder verständliche Sprache erzeugen. Entsprechend der vorliegenden Erfindung wird jedoch die Klangqualität dadurch wesentlich verbessert, dass man auf Original-Frequenzanteile aus dem Spektrum des Quellsignals zurückgreifen kann.The data rate for the electromagnetic transmission of some Envelopes can be that way versus one else necessary data rate for the transmission of a full audio signal be significantly reduced. A reduction of the data rate by a factor of 40 to 400 may be in this type of transmission can be achieved, since here is a sampling frequency of 100 Hz for the envelope transmission as a rule is sufficient. It is known from speech synthesis that that the greatest part of the information of the language in some contains a few frequency-specific envelopes. One can these envelopes - as already mentioned - for example Imprint bandpass noise signals and so again understandable Generate language. According to the present Invention, however, the sound quality is essential improves that on original frequency shares from the Spectrum of the source signal can fall back.
Das Mikrofon MS des sendeseitigen Hörgeräts HGS kann das konventionelle Hörgerätemikrofon oder besser ein zusätzliches Knochenleitungsmikrofon sein, das das Sprachsignal ohne Störung aufnehmen kann.The microphone MS of the transmitting side hearing aid HGS can be the conventional Hearing Aid Microphone or better an additional one Bone conduction microphone, which is the voice signal without interference can record.
Wie oben bereits angedeutet wurde, muss die Sendeeinheit nicht als Hörgerät ausgestaltet sein. Vielmehr ist es auch möglich, den erfindungsgemäßen Hüllkurvensender in ein beliebiges Accessoire zu integrieren. Dieses lässt sich dann in der Nähe einer Schallquelle, z. B. auf dem Fernseher, in der Mitte eines Konferenztisches etc., platzieren oder am Körper tragen. So kann beispielsweise der Hüllkurvensender die Form eines Schreibstifts besitzen und in einer Hemdtasche getragen werden.As already indicated above, the transmitting unit must not be designed as a hearing aid. Rather, it is too possible, the envelope transmitter according to the invention in any To integrate accessory. This can then be in near a sound source, z. B. on the TV, in the Center of a conference table, etc., place or on the body wear. For example, the envelope transmitter can take the form own a pen and worn in a shirt pocket become.
Claims (12)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004010868A DE102004010868B3 (en) | 2004-03-05 | 2004-03-05 | Transmitting device for sending signals to a hearing aid and corresponding method and hearing aid device and method for operating a hearing aid |
| DE102004010868 | 2004-03-05 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1575335A2 true EP1575335A2 (en) | 2005-09-14 |
| EP1575335A3 EP1575335A3 (en) | 2009-08-12 |
| EP1575335B1 EP1575335B1 (en) | 2011-10-05 |
Family
ID=34813605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05101232A Not-in-force EP1575335B1 (en) | 2004-03-05 | 2005-02-18 | Transmitting system for transmitting signals to a hearing aid and corresponding method |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7580534B2 (en) |
| EP (1) | EP1575335B1 (en) |
| JP (1) | JP4072167B2 (en) |
| CN (1) | CN1665349A (en) |
| AU (1) | AU2005200988B2 (en) |
| DE (1) | DE102004010868B3 (en) |
| DK (1) | DK1575335T3 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT506055B1 (en) * | 2007-04-30 | 2014-03-15 | Cochlear Ltd | SYNCHRONIZATION OF TWO-SIDED PROSTHESIS |
| US8953810B2 (en) | 2011-03-03 | 2015-02-10 | Cochlear Limited | Synchronization in a bilateral auditory prosthesis system |
| US9042996B2 (en) | 2011-03-10 | 2015-05-26 | Cochlear Limited | Wireless communications in medical devices |
| EP2528358A1 (en) * | 2011-05-23 | 2012-11-28 | Oticon A/S | A method of identifying a wireless communication channel in a sound system |
| US9415220B1 (en) * | 2012-07-31 | 2016-08-16 | Synchromax, Inc. | Auricular stimulation for inflammatory parasympathetic diseases |
| CN104361787A (en) * | 2014-11-10 | 2015-02-18 | 西安酷派软件科技有限公司 | System and method for converting signals |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3508830A1 (en) | 1985-03-13 | 1986-09-18 | Robert Bosch Gmbh, 7000 Stuttgart | Hearing aid |
| DE4327901C1 (en) | 1993-08-19 | 1995-02-16 | Markus Poetsch | Device for aiding hearing |
| US20030044034A1 (en) | 2001-08-27 | 2003-03-06 | The Regents Of The University Of California | Cochlear implants and apparatus/methods for improving audio signals by use of frequency-amplitude-modulation-encoding (FAME) strategies |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3681530A (en) * | 1970-06-15 | 1972-08-01 | Gte Sylvania Inc | Method and apparatus for signal bandwidth compression utilizing the fourier transform of the logarithm of the frequency spectrum magnitude |
| JPS547220A (en) | 1977-06-20 | 1979-01-19 | Fujitsu Ltd | Adaptive lincomlpex system |
| JPS547219A (en) | 1977-06-20 | 1979-01-19 | Fujitsu Ltd | Adaptive lincomplex system |
| GB9027784D0 (en) * | 1990-12-21 | 1991-02-13 | Northern Light Music Limited | Improved hearing aid system |
| JP2595042Y2 (en) | 1991-09-30 | 1999-05-24 | 株式会社オーディオテクニカ | Microphone |
| JP4181311B2 (en) | 2001-05-01 | 2008-11-12 | ティーオーエー株式会社 | Communication system for the hearing impaired |
| EP1531650A3 (en) * | 2003-11-12 | 2008-07-09 | Gennum Corporation | Hearing instrument having a wireless base unit |
-
2004
- 2004-03-05 DE DE102004010868A patent/DE102004010868B3/en not_active Expired - Lifetime
-
2005
- 2005-02-18 EP EP05101232A patent/EP1575335B1/en not_active Not-in-force
- 2005-02-18 DK DK05101232.6T patent/DK1575335T3/en active
- 2005-03-01 JP JP2005055736A patent/JP4072167B2/en not_active Expired - Fee Related
- 2005-03-03 US US11/072,944 patent/US7580534B2/en not_active Expired - Fee Related
- 2005-03-04 CN CN2005100530210A patent/CN1665349A/en active Pending
- 2005-03-04 AU AU2005200988A patent/AU2005200988B2/en not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3508830A1 (en) | 1985-03-13 | 1986-09-18 | Robert Bosch Gmbh, 7000 Stuttgart | Hearing aid |
| DE4327901C1 (en) | 1993-08-19 | 1995-02-16 | Markus Poetsch | Device for aiding hearing |
| US20030044034A1 (en) | 2001-08-27 | 2003-03-06 | The Regents Of The University Of California | Cochlear implants and apparatus/methods for improving audio signals by use of frequency-amplitude-modulation-encoding (FAME) strategies |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1575335B1 (en) | 2011-10-05 |
| CN1665349A (en) | 2005-09-07 |
| US7580534B2 (en) | 2009-08-25 |
| AU2005200988B2 (en) | 2007-03-01 |
| JP2005253078A (en) | 2005-09-15 |
| DE102004010868B3 (en) | 2005-09-22 |
| EP1575335A3 (en) | 2009-08-12 |
| US20050201578A1 (en) | 2005-09-15 |
| JP4072167B2 (en) | 2008-04-09 |
| DK1575335T3 (en) | 2012-02-13 |
| AU2005200988A1 (en) | 2005-09-22 |
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