WO2002032356A8 - Transient processing for communication system - Google Patents

Transient processing for communication system

Info

Publication number
WO2002032356A8
WO2002032356A8 PCT/US2001/032455 US0132455W WO0232356A8 WO 2002032356 A8 WO2002032356 A8 WO 2002032356A8 US 0132455 W US0132455 W US 0132455W WO 0232356 A8 WO0232356 A8 WO 0232356A8
Authority
WO
Grant status
Application
Patent type
Prior art keywords
audio signal
voice
spoken
automatic gain
signal
Prior art date
Application number
PCT/US2001/032455
Other languages
French (fr)
Other versions
WO2002032356A1 (en )
Inventor
Alan M Finn
Philip Lemay
Ronald R Reich
Saligrama R Venkatesh
Original Assignee
Lear Corp
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

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M9/00Interconnection arrangements not involving centralised switching
    • H04M9/08Two-way loud-speaking telephone systems with means for suppressing echoes or otherwise conditioning for one or other direction of traffic
    • H04M9/082Two-way loud-speaking telephone systems with means for suppressing echoes or otherwise conditioning for one or other direction of traffic using echo cancellers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00Circuits for transducers, loudspeakers or microphones
    • H04R3/005Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00Circuits for transducers, loudspeakers or microphones
    • H04R3/02Circuits for transducers, loudspeakers or microphones for preventing acoustic reaction, i.e. acoustic oscillatory feedback
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10General applications
    • H04R2499/13Acoustic transducers and sound field adaptation in vehicles

Abstract

An automatic gain control for a cabin communication system improves the clarity of voice spoken within a movable interior cabin. The automatic gain control includes a microphone (102) for receiving the spoken voice and the ambient noise and for converting the spoken voice and the ambient noise into a first audio signal, the first audio signal including a first component corresponding to the spoken voice and a second component corresponding to the ambient noise, a parameter estimation processor (802 and 806) for receiving the first audio signal and for determining parameters for deciding whether or not the second component corresponds to an undersirable transient noise, decision logic for deciding (804 and 808), based on the parameters, whether or not the second component corresponds to an undersirable transient signal, a filter (300) for filtering the first audio signal to provide a filteres audio signal, a loudspeaker (104) for outputting a reproduced voice in response to the filtered audio signal with a variable gain at a second location in the cabin, and a control signal generating circuit for generating an automatic gain control signal in response to the decision logic.
PCT/US2001/032455 2000-10-19 2001-10-18 Transient processing for communication system WO2002032356A8 (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
US69255600 true 2000-10-19 2000-10-19
US09/691869 2000-10-19
US09/692268 2000-10-19
US09692531 US7171003B1 (en) 2000-10-19 2000-10-19 Robust and reliable acoustic echo and noise cancellation system for cabin communication
US09692725 US7117145B1 (en) 2000-10-19 2000-10-19 Adaptive filter for speech enhancement in a noisy environment
US09/692556 2000-10-19
US09/692725 2000-10-19
US09/691928 2000-10-19
US09/692531 2000-10-19
US09691928 US6674865B1 (en) 2000-10-19 2000-10-19 Automatic volume control for communication system
US09691869 US6748086B1 (en) 2000-10-19 2000-10-19 Cabin communication system without acoustic echo cancellation
US09692268 US7039197B1 (en) 2000-10-19 2000-10-19 User interface for communication system

Publications (2)

Publication Number Publication Date
WO2002032356A1 true WO2002032356A1 (en) 2002-04-25
WO2002032356A8 true true WO2002032356A8 (en) 2002-05-23

Family

ID=27560235

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/032455 WO2002032356A8 (en) 2000-10-19 2001-10-18 Transient processing for communication system

Country Status (1)

Country Link
WO (1) WO2002032356A8 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7853024B2 (en) 1997-08-14 2010-12-14 Silentium Ltd. Active noise control system and method
US7317801B1 (en) 1997-08-14 2008-01-08 Silentium Ltd Active acoustic noise reduction system
EP1414021B1 (en) * 2002-10-21 2008-05-14 Silentium Ltd. Active acoustic noise reduction system
US7467084B2 (en) * 2003-02-07 2008-12-16 Volkswagen Ag Device and method for operating a voice-enhancement system
DE10354557B4 (en) * 2003-11-21 2007-11-29 Infineon Technologies Ag Methods and apparatus for predicting contained in a reception signal noise as well as a digital receiver
DE602005018023D1 (en) 2005-04-29 2010-01-14 Harman Becker Automotive Sys Cancellation of the echo and the feedback
WO2008090544A3 (en) 2007-01-22 2010-02-04 Silentium Ltd. Quiet fan incorporating active noise control (anc)
US8855330B2 (en) * 2007-08-22 2014-10-07 Dolby Laboratories Licensing Corporation Automated sensor signal matching
FR2948484B1 (en) * 2009-07-23 2011-07-29 Parrot Filtering Method of non-stationary lateral noise for a multi-microphone audio device, such as a telephone device "hands free" for motor vehicle
JP6182524B2 (en) 2011-05-11 2017-08-16 シレンティウム リミテッド Noise control devices, systems, and methods
US9928824B2 (en) 2011-05-11 2018-03-27 Silentium Ltd. Apparatus, system and method of controlling noise within a noise-controlled volume
WO2013187946A3 (en) 2012-06-10 2015-03-26 Nuance Communications, Inc. Wind noise detection for in-car communication systems with multiple acoustic zones
WO2013187932A1 (en) 2012-06-10 2013-12-19 Nuance Communications, Inc. Noise dependent signal processing for in-car communication systems with multiple acoustic zones
US9805738B2 (en) 2012-09-04 2017-10-31 Nuance Communications, Inc. Formant dependent speech signal enhancement
US9613633B2 (en) 2012-10-30 2017-04-04 Nuance Communications, Inc. Speech enhancement
GB201617015D0 (en) 2016-09-08 2016-11-23 Continental Automotive Systems Us Inc In-Car communication howling prevention

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5361305A (en) * 1993-11-12 1994-11-01 Delco Electronics Corporation Automated system and method for automotive audio test
US5872852A (en) * 1995-09-21 1999-02-16 Dougherty; A. Michael Noise estimating system for use with audio reproduction equipment
US5802184A (en) * 1996-08-15 1998-09-01 Lord Corporation Active noise and vibration control system
FR2765610B1 (en) * 1997-07-04 2003-08-15 Kiekert Ag motor vehicle with a locking system to open or lock by means of a remote control

Also Published As

Publication number Publication date Type
WO2002032356A1 (en) 2002-04-25 application

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