EP1340224A1 - Procede de commande d'un appareil equipe d'un dispositif de sortie acoustique - Google Patents

Procede de commande d'un appareil equipe d'un dispositif de sortie acoustique

Info

Publication number
EP1340224A1
EP1340224A1 EP01991744A EP01991744A EP1340224A1 EP 1340224 A1 EP1340224 A1 EP 1340224A1 EP 01991744 A EP01991744 A EP 01991744A EP 01991744 A EP01991744 A EP 01991744A EP 1340224 A1 EP1340224 A1 EP 1340224A1
Authority
EP
European Patent Office
Prior art keywords
signal
volume
output
command signal
acoustic
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Withdrawn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
EP01991744A
Other languages
German (de)
English (en)
Inventor
Volker Stahl
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of EP1340224A1 publication Critical patent/EP1340224A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • G10L15/26—Speech to text systems
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
    • G10L2015/223—Execution procedure of a spoken command

Definitions

  • the invention relates to a method for controlling a device having an acoustic output device by means of acoustic command signals. Furthermore, the invention relates to a device with an acoustic output device, with a receiving device for receiving acoustic command signals, with a recognition device for recognizing these command signals and with a control device for controlling the device as a function of a recognized command signal.
  • Switchable devices such as alarm clocks or lights have been on the market for a long time, which can be switched on or off or switched back and forth between different modes by means of very simple acoustic command signals, for example noises such as clapping or whistling.
  • voice recognition systems there are also devices that can recognize and accept various voice commands as command signals, so that more complicated controls of such devices are also possible.
  • voice-controllable devices are extremely convenient since the operator can operate the respective device hands-free.
  • This control method therefore has great advantages wherever the operator needs his hands for other activities, for example when controlling a car radio, in which the operator does not have to take his hands off the steering wheel to change the volume or to set a new channel.
  • this method is also very attractive in general for the operation of devices because such a voice control enables the interface between man and machine (MMI; man-machine interface) from the previously common communication level of machines, namely operation using buttons and Regulators to which the person's own communication level, namely the transmission of information by voice, is shifted.
  • MMI man-machine interface
  • the recognition device which is intended to identify the command signals not only receives the command signal alone, but also the acoustic output signal generated by the device itself (for example, the music played on a CD player) as an acoustic echo.
  • the own output signal is therefore like a background noise below the command signal. Depending on the volume of the command signal or the own output signal, this leads to considerable problems in recognizing the command signals.
  • AEC method Acoustic Echo Cancellation
  • the output signal generated by the device itself is used to estimate a room impulse response signal, that is to say to estimate the signal caused by a Reflection of the output signal within the room in which the device is located is detected again by the recording device.
  • This takes place in a so-called “adaptive filter method” in which iteratively determines a transfer function with which the original output signal is first transformed and then that output signal thus transformed is subtracted in a filter from the received total input signal.
  • the method is adaptive insofar as the iteration process is continuously continued and thus changes in space that are associated with a change in the transfer function are recorded.
  • the volume is immediately reduced by the device itself as soon as the device recognizes that a possible acoustic command signal is being transmitted to the device.
  • the command signal for the device can be recognized more easily and reliably due to the smaller acoustic echo.
  • the reduction in volume also reduces the so-called "Lombard effect", which means that a person automatically speaks differently, for example louder and more accentuated, when he has to respond to background noise, which inevitably has an impact on the recognition performance of a speech recognition system.
  • a corresponding device must first have an acoustic output device, a receiving device for receiving the acoustic
  • Command signals for example a conventional microphone, and a detection device for recognizing these command signals and a control device for controlling the device depending on a detected command signal.
  • the device must have suitable means for detecting that the receiving device is receiving a possible command signal for the device, as well as suitable means with which the volume of the output signal output by the acoustic output device is reduced as soon as the reception of a possible command signal for the device is recognized becomes.
  • the device can be equipped or set so that a word spoken by a specific user in a defined volume and / or pitch and / or speaking direction is recognized as a possible command signal and the volume is then reduced.
  • the actual command signal is preceded by a key command signal, the volume of which is reduced when it is detected.
  • This key command signal is expediently the command signal which puts the device into a ready state for receiving further command signals, ie which first activates the control device of the respective device.
  • Such key command signals are particularly useful when there are several voice-controllable devices in the same environment, each of which accepts similar or identical command signals.
  • the device for which a specific command signal is intended must be addressed by a preceding key command signal by means of a corresponding key command signal.
  • a voice-controlled computer and a television set could be arranged directly next to one another, and the command signals for the devices are preceded by the key command signal “computer” or “TV”.
  • the automatic reduction in the volume of the output signal of the device upon detection of the key command signal also has the advantage that the user is immediately informed in this way that the respective device is in the ready state for receiving further command signals and, so to speak, "listening" to the user.
  • the device can also additionally give a visual or acoustic confirmation of the receipt of the key command signal.
  • the volume is preferably increased automatically again after a command signal - for example following the key command - has been recognized.
  • the volume it is possible for the volume to be automatically reset to the previously set value after a certain period of time after the key command signal or a command signal has been detected. In this case the device would still work after receiving a command signal wait a certain time until another command signal comes. Only then would the device automatically switch back from the ready state or activated state.
  • the volume of the output signal is reduced as a function of a determined command signal energy.
  • Command signal energy is understood here to mean the signal energy of the received command signals, the key command signal naturally also being understood as a - special - command signal in this sense.
  • the volume of the own output signal of this device could only be reduced if the own output signal is actually so loud in relation to the command signals that reliable detection of the command signals can no longer be guaranteed. This can be controlled in a simple manner by determining the relationship between the output signal energy or the signal energy of the ascertained or estimated acoustic echo of the output signal and the command signal energy. The volume is only reduced if this ratio lies within a certain value range with respect to a predetermined threshold value.
  • the volume is only reduced if this ratio is above a predetermined threshold value.
  • the ratio of the command signal energy to the output signal energy or the energy of the acoustic echo is determined, the volume is only reduced if this ratio is below a predetermined threshold value.
  • the command signal energy can be measured, for example, at the input of the receiving device or the microphone.
  • Output signal reduced until the ratio of the signal energies is at a predetermined value.
  • This ratio can be defined and set beforehand by the user or can also be defined automatically in that a certain recognition reliability of the recognition device is achieved. In this case in particular, it makes sense if the device has additional means for visual or acoustic display, which indicate that the key command signal has been recognized, since the user cannot always rely on the volume being reduced after the key command signal has been recognized.
  • the device preferably additionally has a filter device for filtering out an acoustic echo of the output signal output by the device itself from the overall signal received by the device. This means that the new method is used in addition to an AEC method in order to achieve optimal detection performance.
  • Typical voice commands that are used to control audio devices or audiovisual devices are command words to control the volume of the device.
  • Such “volume command signals” can, for example, be the words “louder” or “quieter”.
  • the device itself after such a volume command signal has been recognized, initially resets the volume to the value set before the reduction, and only then does the volume return to a value corresponding to the volume command signal This means, for example, that the volume is reduced by a certain level when the word "quieter” is recognized or raised by a certain level when the word "louder” is recognized.
  • the single figure shows a schematic block diagram of an audio device 1, for example a CD player, only the components essential to the invention being shown.
  • the audio device 1 initially has an audio signal source 6.
  • this audio signal source 6 is, for example, the CD Drive, the scanner and the electronics for converting the acquired optical data into the audio signal.
  • the audio signal generated by the audio signal source 6 is then forwarded to an amplifier 8, for example a conventional output stage 8, and from there is output via an acoustic output device 2, here a conventional loudspeaker 2.
  • the device 1 has a control device 5, which can be implemented, for example, in the form of a microcontroller or the like.
  • the audio signal source 6 can be controlled by means of this control device 5, for example a special title on a CD can be selected.
  • This control option is indicated in the figure by the control line 18 shown.
  • Control device 5 the volume of the device 1 can be regulated. This is done by controlling the output stage 8. This control option is shown in the figure by the control line 19.
  • the device 1 receives the commands for the control in the form of acoustic signals
  • Command signals BS here voice commands, which the user inputs via a recording device 3, here a microphone 3, and which are forwarded via lines 14, 15 to a recognition device 4, here a speech recognition system 4.
  • the recognized command is then forwarded via the signal line 17 to the control device 5, which then controls the individual components of the device 1 in accordance with the command received.
  • the microphone 3 not only detects the command signal BS, but also an acoustic echo AE, which is generated by the acoustic signal emitted by the loudspeaker 2 of the device 1 itself, here the music from the CD.
  • the acoustic echo AE depends not only on the output signal, but also on the acoustic parameters of the room.
  • the device has a filter device 9 (hereinafter referred to as AEC unit) in which the acoustic echo AE is filtered out from the overall signal received at the microphone 3.
  • the output signal is tapped from the signal output branch, which runs from the audio signal source 6 via the output stage 8 to the loudspeaker 2, in front of the output stage 8 at the tap point 21 and is connected to the AEC via a signal line 11.
  • This transfer function corresponds to the estimated room impulse response.
  • the current room impulse response is determined using an iterative process, which is constantly updated and therefore adaptive filtering is carried out, which takes into account changes in the room, for example due to movements of people or objects.
  • the output signal transformed by means of the transfer function is subtracted in an adder 10 of the AEC unit 9 from the overall signal coming from the microphone 3 via the signal line 14.
  • the residual signal which ideally only corresponds to the command signal BS, is then forwarded to the speech recognition system 4 via the output line 15 by the AEC unit 9.
  • the AEC device 9 also has an input 12 at which the control signal, which is output via the control line 19 from the control device 5 to the output stage 8, for regulating the volume is present.
  • the coefficients for the transfer function can thus be scaled according to the volume set.
  • the device 1 additionally has means 7 in the form of an attenuator 7, with which the volume of the device 1 can be reduced when a key command signal SBS is recognized by the speech recognition system 4.
  • this key command signal SBS must therefore be spoken by the user as the first command signal.
  • the speech recognition system 4 is designed in such a way that it only responds to this special key command signal SBS, i.e. here a certain password, such as the word "CD", is waiting. After this password has been accepted, the entire complex command vocabulary of the speech recognition system 4 is first activated, and the device 1 is in a standby mode in which further command signals are recognized and accepted, for example commands such as "louder”, “quieter”, “next title”, title 5 "etc. After the respective command signal BS following the key command signal SBS has been recognized, the device 1 switches back to a state where it returns to the key command signal SBS waiting.
  • the attenuator 7 When the key command signal SBS is detected, the attenuator 7 is activated automatically by the control device 5 via the control line 20 and the volume of the device's own output signal is thus reduced. This makes it easier for the speech recognition system 4 to identify the subsequent command signal BS, ie the actual command.
  • This decrease in volume can, for example, by a certain value, e.g. B. 10 dB, or to a preset volume level. It is also possible to reduce the volume to zero.
  • the signals present at the signal input branch upstream and downstream of the filter 10 are fed to the control device 5 via the signal lines 13, 16. From these signals in front of and behind the filter 10, the control device 5 can determine which signal energy the acoustic echo AE has on the microphone and which signal energy has the command signal BS that is actually desired.
  • the control device 5 is designed such that it reduces the volume of the output signal by means of the attenuator 7 to such an extent that there is a certain relationship between the signal energy of the acoustic echo AE and the signal energy of the command signal BS. If the ratio of the signal energies is already below this value, the volume is not reduced any further.
  • the attenuator 7 in the signal output branch can be bridged in the exemplary embodiment shown and the user can, if desired, override the function according to the invention.
  • the separate attenuator 7 is arranged in the signal output branch here in such a way that the signal is attenuated before the branch point 21 for tapping the output signal for the AEC unit 9. As a result, it is automatically taken into account that when the volume is reduced, the AEC unit 9 reduces this volume when
  • the volume could be reduced by the control device 5 after detection of the key command signal SBS by regulating the output stage 8.
  • the recognition accuracy of the speech control is considerably improved by reducing the distortion of the input signal of the speech recognizer.
  • a very user-friendly voice interface is created, since the user receives feedback from the device 1 by reducing the volume that this is ready for a voice command.
  • additional feedback can follow through a visual or further acoustic signal, for example a signal tone.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Selective Calling Equipment (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

L'invention concerne un procédé de commande d'un appareil (1), équipé d'un dispositif de sortie acoustique (2), au moyen de signaux de commande acoustiques (BS). Selon ladite invention, cet appareil (1) réduit automatiquement son intensité sonore, lorsqu'il détecte qu'un signal de commande acoustique lui est transmis.
EP01991744A 2000-11-27 2001-11-19 Procede de commande d'un appareil equipe d'un dispositif de sortie acoustique Withdrawn EP1340224A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10058786 2000-11-27
DE10058786A DE10058786A1 (de) 2000-11-27 2000-11-27 Verfahren zum Steuerung eines eine akustische Ausgabeeinrichtung aufweisenden Geräts
PCT/EP2001/013468 WO2002043049A1 (fr) 2000-11-27 2001-11-19 Procede de commande d'un appareil equipe d'un dispositif de sortie acoustique

Publications (1)

Publication Number Publication Date
EP1340224A1 true EP1340224A1 (fr) 2003-09-03

Family

ID=7664796

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01991744A Withdrawn EP1340224A1 (fr) 2000-11-27 2001-11-19 Procede de commande d'un appareil equipe d'un dispositif de sortie acoustique

Country Status (7)

Country Link
US (1) US20030138118A1 (fr)
EP (1) EP1340224A1 (fr)
JP (1) JP2004514926A (fr)
KR (1) KR20020071966A (fr)
CN (1) CN1216364C (fr)
DE (1) DE10058786A1 (fr)
WO (1) WO2002043049A1 (fr)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1518224A2 (fr) * 2002-06-19 2005-03-30 Koninklijke Philips Electronics N.V. Processeur de signaux audio
US7454331B2 (en) * 2002-08-30 2008-11-18 Dolby Laboratories Licensing Corporation Controlling loudness of speech in signals that contain speech and other types of audio material
GB2394589B (en) * 2002-10-25 2005-05-25 Motorola Inc Speech recognition device and method
US9319741B2 (en) 2006-09-07 2016-04-19 Rateze Remote Mgmt Llc Finding devices in an entertainment system
US8607281B2 (en) * 2006-09-07 2013-12-10 Porto Vinci Ltd. Limited Liability Company Control of data presentation in multiple zones using a wireless home entertainment hub
US8214219B2 (en) * 2006-09-15 2012-07-03 Volkswagen Of America, Inc. Speech communications system for a vehicle and method of operating a speech communications system for a vehicle
JP5380777B2 (ja) * 2007-02-21 2014-01-08 ヤマハ株式会社 音声会議装置
KR101590332B1 (ko) 2012-01-09 2016-02-18 삼성전자주식회사 영상장치 및 그 제어방법
KR101987255B1 (ko) * 2012-08-20 2019-06-11 엘지이노텍 주식회사 음성 인식 장치 및 이의 음성 인식 방법
US9922646B1 (en) * 2012-09-21 2018-03-20 Amazon Technologies, Inc. Identifying a location of a voice-input device
CN102945672B (zh) * 2012-09-29 2013-10-16 深圳市国华识别科技开发有限公司 一种多媒体设备语音控制系统及方法
US9165566B2 (en) 2013-01-24 2015-10-20 Microsoft Technology Licensing, Llc Indefinite speech inputs
US10379635B2 (en) 2013-02-05 2019-08-13 Contour Design, Inc. Pointing device
DE102013012453B3 (de) * 2013-07-26 2014-10-16 Audi Ag Verfahren zum Betreiben eines Infotainment-Systems eines Kraftwagens und Infotainment-System für einen Kraftwagen
US8874448B1 (en) * 2014-04-01 2014-10-28 Google Inc. Attention-based dynamic audio level adjustment
KR102338041B1 (ko) * 2014-09-29 2021-12-10 현대모비스 주식회사 음성 인식 장치 및 방법
CN104505092B (zh) * 2014-12-10 2017-12-22 广东美的制冷设备有限公司 空调器语音控制方法和系统
US10031591B2 (en) 2015-05-08 2018-07-24 Contour Design, Inc. Pointing device bracket assembly and system
US9691378B1 (en) * 2015-11-05 2017-06-27 Amazon Technologies, Inc. Methods and devices for selectively ignoring captured audio data
CN106297837A (zh) * 2016-08-05 2017-01-04 易晓阳 一种语音控制音乐本地播放方法
US10043516B2 (en) * 2016-09-23 2018-08-07 Apple Inc. Intelligent automated assistant
CN106409294B (zh) * 2016-10-18 2019-07-16 广州视源电子科技股份有限公司 防止语音命令误识别的方法和装置
US11023053B2 (en) 2016-11-11 2021-06-01 Contour Innovations Llc Inner-sensor pointing device system
CN106796790B (zh) * 2016-11-16 2020-11-10 深圳达闼科技控股有限公司 机器人语音指令识别的方法及相关机器人装置
KR102398390B1 (ko) * 2017-03-22 2022-05-16 삼성전자주식회사 전자 장치 및 전자 장치의 제어 방법
EP3610480B1 (fr) * 2017-12-06 2022-02-16 Google LLC Atténuation et suppression des signaux audio de dispositifs proches
JP6929811B2 (ja) * 2018-03-13 2021-09-01 Ｔｖｓ Ｒｅｇｚａ株式会社 音声対話端末、および音声対話端末制御方法
CN109658930B (zh) * 2018-12-19 2021-05-18 Oppo广东移动通信有限公司 语音信号处理方法、电子装置及计算机可读存储介质
WO2020140271A1 (fr) * 2019-01-04 2020-07-09 珊口（上海）智能科技有限公司 Procédé et appareil de commande de robot mobile, robot mobile, et support de stockage
US11373686B1 (en) * 2019-12-23 2022-06-28 Gopro, Inc. Systems and methods for removing commands from sound recordings
FR3109050B1 (fr) * 2020-04-01 2022-03-04 Sagemcom Broadband Sas Réduction de la consommation électrique d’un équipement de restitution audio
CN112413859B (zh) * 2020-11-24 2021-11-16 珠海格力电器股份有限公司 空调器控制方法、装置、空调器及存储介质

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1085500A2 (fr) * 1999-09-13 2001-03-21 Matsushita Electric Industrial Co., Ltd. Temporisation des commandes délivrées à un appareil commandé vocalement

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2240557A1 (de) * 1971-08-18 1973-02-22 Jean Albert Dreyfus Spracherkennungsvorrichtung zum steuern von maschinen
US4378603A (en) * 1980-12-23 1983-03-29 Motorola, Inc. Radiotelephone with hands-free operation
US4712231A (en) * 1984-04-06 1987-12-08 Shure Brothers, Inc. Teleconference system
JPS63171071A (ja) * 1987-01-08 1988-07-14 Matsushita Commun Ind Co Ltd 音声制御装置
US5267323A (en) * 1989-12-29 1993-11-30 Pioneer Electronic Corporation Voice-operated remote control system
DE4009900A1 (de) * 1990-03-20 1991-11-07 Blaupunkt Werke Gmbh Kraftfahrzeugkommunikationszentrale
JPH07109560B2 (ja) * 1990-11-30 1995-11-22 富士通テン株式会社 音声認識装置
US5457769A (en) * 1993-03-30 1995-10-10 Earmark, Inc. Method and apparatus for detecting the presence of human voice signals in audio signals
US5633936A (en) * 1995-01-09 1997-05-27 Texas Instruments Incorporated Method and apparatus for detecting a near-end speech signal
JP3674990B2 (ja) * 1995-08-21 2005-07-27 セイコーエプソン株式会社 音声認識対話装置および音声認識対話処理方法
EP0810502A1 (fr) * 1996-05-30 1997-12-03 DIEHL GMBH & CO. Unité de commande pour une installation de chauffage
DE19712632A1 (de) * 1997-03-26 1998-10-01 Thomson Brandt Gmbh Verfahren und Vorrichtung zur Sprachfernsteuerung von Geräten

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1085500A2 (fr) * 1999-09-13 2001-03-21 Matsushita Electric Industrial Co., Ltd. Temporisation des commandes délivrées à un appareil commandé vocalement

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
See also references of WO0243049A1 *
STRUOM N.; SENEFF S.: "Intelligent barge-in in conversational systems", PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON SPOKEN LANGUAGE PROCESSING, 16 October 2000 (2000-10-16), pages 1 - 4, XP007011042 *

Also Published As

Publication number Publication date
US20030138118A1 (en) 2003-07-24
JP2004514926A (ja) 2004-05-20
KR20020071966A (ko) 2002-09-13
CN1216364C (zh) 2005-08-24
WO2002043049A1 (fr) 2002-05-30
DE10058786A1 (de) 2002-06-13
CN1397063A (zh) 2003-02-12

Similar Documents

Publication Publication Date Title
WO2002043049A1 (fr) Procede de commande d'un appareil equipe d'un dispositif de sortie acoustique
DE69636985T2 (de) Sprachanwesenheitdetektor für halbduplex-audiokommunikationssystem
DE10251113A1 (de) Verfahren zum Betrieb eines Spracherkennungssystems
DE112009001303B4 (de) Echokompensator
EP2587481A2 (fr) Commande d'un appareil basé sur la parole
DE19521258A1 (de) Spracherkennungssystem
DE10163213A1 (de) Verfahren zum Betrieb eines Spracherkennungssystems
DE19712632A1 (de) Verfahren und Vorrichtung zur Sprachfernsteuerung von Geräten
DE19935808A1 (de) Echounterdrückungseinrichtung zum Unterdrücken von Echos in einer Sender/Empfänger-Einheit
EP1744589A2 (fr) Appareil auditif et procédé correspondant pour la détection de voix-propres
DE4029697A1 (de) Sprachgesteuertes fernbedienungssystem
DE112011105908B4 (de) Verfahren und Gerät zur adaptiven Regelung des Toneffekts
DE60123803T2 (de) System zur steuerung eines gerätes mittels sprachbefehlen
EP3375204B1 (fr) Traitement de signal audio dans un véhicule
DE69532026T2 (de) Schaltung zum automatischen Variieren des Pegels eines Empfangssprachsignals in einem Fernprechgerät
KR100556365B1 (ko) 음성 인식장치 및 방법
EP0772375A2 (fr) Prothèse auditive et appareil auxiliaire
EP0693845A2 (fr) Répondeur téléphonique numérique
WO2003107327A1 (fr) Commande d'un appareil fondee sur la voix
DE102006001730A1 (de) Beschallungsanlage, Verfahren zur Verbesserung der Sprachqualität und/oder Verständlichkeit von Sprachdurchsagen sowie Computerprogramm
EP0966100B1 (fr) Procédé et dispositif pour agir sur le volume d'un appareil de reproduction audio dans un véhicule automobile
DE69930109T2 (de) Sprachgesteuerter schalter zur verwendung bei hohem umgebungsgeräusch
EP1062487A1 (fr) Dispositif a microphone pour la reconnaissance vocale dans des conditions spatiales variables
DE60303278T2 (de) Vorrichtung zur Verbesserung der Spracherkennung
EP0693849A1 (fr) Système de transmission de signaux vocaux codés

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

17P Request for examination filed

Effective date: 20030627

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17Q First examination report despatched

Effective date: 20060822

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20070811