WO2007009505A1 - Protection de la sphere privee lors d'emissions acoustiques par haut-parleurs - Google Patents

Protection de la sphere privee lors d'emissions acoustiques par haut-parleurs Download PDF

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Publication number
WO2007009505A1
WO2007009505A1 PCT/EP2006/000896 EP2006000896W WO2007009505A1 WO 2007009505 A1 WO2007009505 A1 WO 2007009505A1 EP 2006000896 W EP2006000896 W EP 2006000896W WO 2007009505 A1 WO2007009505 A1 WO 2007009505A1
Authority
WO
WIPO (PCT)
Prior art keywords
speaker
loudspeaker
output
listener
control
Prior art date
Application number
PCT/EP2006/000896
Other languages
German (de)
English (en)
Inventor
Klaus Linhard
Dirk Olszewski
Original Assignee
Daimlerchrysler Ag
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 Daimlerchrysler Ag filed Critical Daimlerchrysler Ag
Publication of WO2007009505A1 publication Critical patent/WO2007009505A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/32—Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/13—Acoustic transducers and sound field adaptation in vehicles

Definitions

  • the invention relates to a method and a device by means of which the privacy of loudspeaker issues, especially in a motor vehicle, can be ensured.
  • Japanese Unexamined Patent Publication JP 2004- 096664 A describes a vehicle-based hands-free device which suppresses the voice signal of a user of the device such that another vehicle occupant does not perceive it.
  • a loudspeaker arrangement is assigned to each of the vehicle occupants. If one of the vehicle occupants receives a voice signal via its loudspeaker device assigned to it, masking signals are transmitted to the other vehicle occupants via these associated loudspeaker systems, which thwart the recording of the voice signal.
  • the disadvantage here is that the implementation of such a hands-free device causes high costs, since according to the number of passengers in the vehicle to install several, specifically mounted and aligned loudspeaker arrangement.
  • the object of the invention is therefore to find a method and apparatus for operating a speakerphone, which preserves the privacy of the user, the interference reduces other people and is cost-effective to implement.
  • a listener via at least one speaker acoustic information is leaked.
  • this is the Lautbouncing Vogelsgabe based on one in the environment of Handset and the speaker determined sound level controlled.
  • speakerphone output is optimized with respect to the listener so that he can just perceive the speaker output with good intelligibility.
  • the invention is particularly suitable for use in a motor vehicle as part of a hands-free system in connection with communication means, in particular with mobile telephones.
  • the invention may very well be a component of an occupant communication system, as described for example in the patent DE 19938158 C2.
  • the individual occupants of the vehicle are each individually associated with microphone and loudspeaker arrangements, by means of which the occupants can communicate with each other but also outside the vehicle receivers (especially people) / then when the occupant, for example by means of a phone with outside
  • the microphone and loudspeaker arrangements associated therewith could be used to ensure their privacy.
  • several different approaches are conceivable.
  • the loudspeaker could also be designed in such a way that it can be aligned with it depending on the position of the listener. It is conceivable to realize the alignment by mechanical pivoting of the loudspeaker, or by suitable means and design of the loudspeaker, for example as a loudspeaker array, to adapt the radiation characteristic to the conditions. It would of course also be conceivable to use a loudspeaker which has a very strong directivity based on modulated ultrasound.
  • a handset 1 which is located, for example, in an office space at a computer workstation, 3 acoustic information can be leaked through a speaker. It is irrelevant to the functionality of the invention whether the loudspeaker 3 is a single loudspeaker or an arrangement of several loudspeakers assigned to the listener 1.
  • the loudspeaker 3 associated control 5 receives the information to be output via an information unit 4.
  • this information unit 4 there may be a wide variety of means which provide for the listener 1 In ⁇ relevant formations are available, for example, a Mo ⁇ biltelefon, an another person associated microphone unit or even a monitoring system which generates warning information or time information (for example, a wake-up signal).
  • the ambient noise can be detected on the one hand by a microphone arrangement 7 installed specifically for this purpose in the environment of the handset 1.
  • the signal of the microphone 8 specifically assigned to the listener for voice communication can also be used to detect the ambient noise.
  • the unit 6 acts on the controller 5 of the loudspeaker 3 to optimize its signal output.
  • the optimization may refer here to both a volume control, a filtering of the output signal as well as a control of Lautelles5.3sraum.
  • strongly disturbed spectral components can be specifically raised by the ambient noise.
  • An increase in power levels in the region of 6 dB above the noise level has proven to be helpful.
  • Particularly advantageous here is the increase the spectral signal components in the frequency range of 2 to 4 kHz.
  • the unit 6 for determining the sound level in the environment of the loudspeaker and the handset would be conceivable for further improving their control performance, also to feed information stored in a memory 9, which describes, for example, previously known parameters influencing the acoustic environment; in particular those which can not be derived directly from the signals of the microphones 7 or 8.
  • These parameters could, for example, describe the degree of sound absorption of the infrastructure surrounding the listener 1; i.e. when the handset 1 is shielded by well sound absorbing walls of the surrounding persons 2, the acoustic information output can be done much louder or less targeted than when the handset 1 is unshielded the persons 2 opposite (for example, in the passenger compartment of a motor vehicle).
  • the parameters played back from the memory unit 9 of the unit 6, the invention relies relatively flexibly on a wide variety of acoustic infrastructures.
  • the handset 1 also controls 10, 11 are assigned, by means of which this can affect the loudspeaker control 5.
  • a switch 10 can be provided, by means of which the handset 1, the speaker optimization on and off can.
  • the loudspeaker output must be maintained, in particular the volume of the acoustic information output be designed so that it is well above the noise of the environment exercise and thus can be easily and clearly perceived by the listener 1.
  • the handset can use the operating element 10 to activate the inventive optimization of the loudspeaker output.
  • an operating element 11 could also be provided, by means of which the handset 1 could vary the acoustic information output by the loudspeaker 3 in stages or even steplessly.
  • the handset 1 could vary the acoustic information output by the loudspeaker 3 in stages or even steplessly.
  • it tracks the directional characteristic or the orientation of the loudspeaker 3 in accordance with its change in position.
  • the controls 10, 11 need not be realized as independent elements, but together may be part of a more complex switch element.

Landscapes

  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Telephone Function (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

De plus en plus de dispositifs mains libres sont utilisés pour augmenter le confort d'utilisation de dispositifs techniques et la sécurité de la circulation routière lors de la conduite de véhicules à moteur. Toutefois, la présence d'autres personnes dans l'environnement immédiat de l'utilisateur d'un dispositif mains libres pose des problèmes en termes de sphère privée de l'utilisateur d'une part et de gêne acoustique des autres personnes d'autre part. C'est pourquoi l'émission d'informations acoustiques par un haut-parleur est gérée sur la base d'un niveau sonore déterminé dans l'environnement de l'auditeur et du haut-parleur. Ainsi, l'émission par haut-parleur est optimisée à un niveau d'intelligibilité suffisant pour que l'auditeur puisse la comprendre.
PCT/EP2006/000896 2005-07-15 2006-02-02 Protection de la sphere privee lors d'emissions acoustiques par haut-parleurs WO2007009505A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102005033748.1 2005-07-15
DE102005033748 2005-07-15
DE102005036867.0 2005-08-02
DE102005036867A DE102005036867A1 (de) 2005-07-15 2005-08-02 Sicherstellung der Privatsphäre bei Lautsprecherausgaben

Publications (1)

Publication Number Publication Date
WO2007009505A1 true WO2007009505A1 (fr) 2007-01-25

Family

ID=36295117

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/000896 WO2007009505A1 (fr) 2005-07-15 2006-02-02 Protection de la sphere privee lors d'emissions acoustiques par haut-parleurs

Country Status (2)

Country Link
DE (1) DE102005036867A1 (fr)
WO (1) WO2007009505A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111866660A (zh) * 2020-06-29 2020-10-30 深圳优地科技有限公司 声音播放方法、机器人、终端设备及存储介质

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012000745A1 (de) * 2011-04-07 2012-10-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Wiedergabegerät für Ton und Bild
DE102014215501B4 (de) 2014-08-06 2020-02-06 Volkswagen Aktiengesellschaft Verfahren zur Ausgabe von zumindest einer Information in einem Fahrzeug und Informationsausgabesystem

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2308932A (en) * 1995-12-30 1997-07-09 Samsung Electronics Co Ltd Automatic volume control for cellular telephones with hands-free operation
JPH10290282A (ja) * 1997-04-14 1998-10-27 Nec Shizuoka Ltd ハンズフリー制御回路
WO1999003198A1 (fr) * 1997-07-09 1999-01-21 Siemens Aktiengesellschaft Procede et dispositif de commande pour le reglage de volume d'un element de haut-parleur, dispositif mains libres et dispositif pour l'installation dans un vehicule
DE19938171A1 (de) * 1999-08-16 2001-03-01 Daimler Chrysler Ag Verfahren zur Verarbeitung von akustischen Signalen und Kommunikationsanlage für Insassen in einem Fahrzeug

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3193032B2 (ja) * 1989-12-05 2001-07-30 パイオニア株式会社 車載用自動音量調整装置
JP2845130B2 (ja) * 1994-05-13 1999-01-13 日本電気株式会社 通信装置
US5550923A (en) * 1994-09-02 1996-08-27 Minnesota Mining And Manufacturing Company Directional ear device with adaptive bandwidth and gain control

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2308932A (en) * 1995-12-30 1997-07-09 Samsung Electronics Co Ltd Automatic volume control for cellular telephones with hands-free operation
JPH10290282A (ja) * 1997-04-14 1998-10-27 Nec Shizuoka Ltd ハンズフリー制御回路
WO1999003198A1 (fr) * 1997-07-09 1999-01-21 Siemens Aktiengesellschaft Procede et dispositif de commande pour le reglage de volume d'un element de haut-parleur, dispositif mains libres et dispositif pour l'installation dans un vehicule
DE19938171A1 (de) * 1999-08-16 2001-03-01 Daimler Chrysler Ag Verfahren zur Verarbeitung von akustischen Signalen und Kommunikationsanlage für Insassen in einem Fahrzeug

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 01 29 January 1999 (1999-01-29) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111866660A (zh) * 2020-06-29 2020-10-30 深圳优地科技有限公司 声音播放方法、机器人、终端设备及存储介质
CN111866660B (zh) * 2020-06-29 2022-09-09 深圳优地科技有限公司 声音播放方法、机器人、终端设备及存储介质

Also Published As

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DE102005036867A1 (de) 2007-01-18

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