AU2002218428A1 - Method and system for comfort noise generation in speech communication - Google Patents

Method and system for comfort noise generation in speech communication

Info

Publication number
AU2002218428A1
AU2002218428A1 AU2002218428A AU1842802A AU2002218428A1 AU 2002218428 A1 AU2002218428 A1 AU 2002218428A1 AU 2002218428 A AU2002218428 A AU 2002218428A AU 1842802 A AU1842802 A AU 1842802A AU 2002218428 A1 AU2002218428 A1 AU 2002218428A1
Authority
AU
Australia
Prior art keywords
comfort noise
speech communication
noise generation
stationary
noise
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.)
Abandoned
Application number
AU2002218428A
Inventor
Hannu Mikkola
Janne Vainio
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.)
Nokia Oyj
Original Assignee
Nokia Oyj
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 Nokia Oyj filed Critical Nokia Oyj
Publication of AU2002218428A1 publication Critical patent/AU2002218428A1/en
Abandoned 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/012—Comfort noise or silence coding
    • 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/78—Detection of presence or absence of voice signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Noise Elimination (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

A method and system for providing comfort noise in the non-speech periods in speech communication. The comfort noise is generated based on whether the background noise in the speech input is stationary or non-stationary. If the background noise is non-stationary, a random component is inserted in the comfort noise using a dithering process. If the background noise is stationary, the dithering process is not used.
AU2002218428A 2000-11-27 2001-11-26 Method and system for comfort noise generation in speech communication Abandoned AU2002218428A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US25317000P 2000-11-27 2000-11-27
US60/253,170 2000-11-27
PCT/IB2001/002235 WO2002043048A2 (en) 2000-11-27 2001-11-26 Method and system for comfort noise generation in speech communication

Publications (1)

Publication Number Publication Date
AU2002218428A1 true AU2002218428A1 (en) 2002-06-03

Family

ID=22959162

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002218428A Abandoned AU2002218428A1 (en) 2000-11-27 2001-11-26 Method and system for comfort noise generation in speech communication

Country Status (13)

Country Link
US (1) US6662155B2 (en)
EP (1) EP1337999B1 (en)
JP (1) JP3996848B2 (en)
KR (1) KR20040005860A (en)
CN (1) CN1265353C (en)
AT (1) ATE336059T1 (en)
AU (1) AU2002218428A1 (en)
BR (1) BR0115601A (en)
CA (1) CA2428888C (en)
DE (1) DE60122203T2 (en)
ES (1) ES2269518T3 (en)
WO (1) WO2002043048A2 (en)
ZA (1) ZA200303829B (en)

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JP3451998B2 (en) * 1999-05-31 2003-09-29 日本電気株式会社 Speech encoding / decoding device including non-speech encoding, decoding method, and recording medium recording program
JP2001242896A (en) * 2000-02-29 2001-09-07 Matsushita Electric Ind Co Ltd Speech coding/decoding apparatus and its method
US7012901B2 (en) * 2001-02-28 2006-03-14 Cisco Systems, Inc. Devices, software and methods for generating aggregate comfort noise in teleconferencing over VoIP networks
US7031916B2 (en) * 2001-06-01 2006-04-18 Texas Instruments Incorporated Method for converging a G.729 Annex B compliant voice activity detection circuit
JP4063508B2 (en) * 2001-07-04 2008-03-19 日本電気株式会社 Bit rate conversion device and bit rate conversion method
CN100466671C (en) * 2004-05-14 2009-03-04 华为技术有限公司 Method and device for switching speeches
JP4381291B2 (en) * 2004-12-08 2009-12-09 アルパイン株式会社 Car audio system
DE102004063290A1 (en) * 2004-12-29 2006-07-13 Siemens Ag Method for adaptation of comfort noise generation parameters
US20070038443A1 (en) * 2005-08-15 2007-02-15 Broadcom Corporation User-selectable music-on-hold for a communications device
US20070136055A1 (en) * 2005-12-13 2007-06-14 Hetherington Phillip A System for data communication over voice band robust to noise
US7573907B2 (en) * 2006-08-22 2009-08-11 Nokia Corporation Discontinuous transmission of speech signals
US20080059161A1 (en) * 2006-09-06 2008-03-06 Microsoft Corporation Adaptive Comfort Noise Generation
KR100834679B1 (en) * 2006-10-31 2008-06-02 삼성전자주식회사 Method and apparatus for alarming of speech-recognition error
RU2469419C2 (en) * 2007-03-05 2012-12-10 Телефонактиеболагет Лм Эрикссон (Пабл) Method and apparatus for controlling smoothing of stationary background noise
CN101303855B (en) * 2007-05-11 2011-06-22 华为技术有限公司 Method and device for generating comfortable noise parameter
US20090043577A1 (en) * 2007-08-10 2009-02-12 Ditech Networks, Inc. Signal presence detection using bi-directional communication data
EP2186090B1 (en) * 2007-08-27 2016-12-21 Telefonaktiebolaget LM Ericsson (publ) Transient detector and method for supporting encoding of an audio signal
CN101335003B (en) * 2007-09-28 2010-07-07 华为技术有限公司 Noise generating apparatus and method
CN101335000B (en) * 2008-03-26 2010-04-21 华为技术有限公司 Method and apparatus for encoding
CN101651752B (en) * 2008-03-26 2012-11-21 华为技术有限公司 Decoding method and decoding device
US8577677B2 (en) * 2008-07-21 2013-11-05 Samsung Electronics Co., Ltd. Sound source separation method and system using beamforming technique
US9253568B2 (en) * 2008-07-25 2016-02-02 Broadcom Corporation Single-microphone wind noise suppression
CN102044246B (en) * 2009-10-15 2012-05-23 华为技术有限公司 Method and device for detecting audio signal
CN102044241B (en) 2009-10-15 2012-04-04 华为技术有限公司 Method and device for tracking background noise in communication system
JP5482998B2 (en) * 2009-10-19 2014-05-07 日本電気株式会社 Speech decoding switching system and speech decoding switching method
US10218327B2 (en) * 2011-01-10 2019-02-26 Zhinian Jing Dynamic enhancement of audio (DAE) in headset systems
DE102011076484A1 (en) * 2011-05-25 2012-11-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. SOUND PLAYING DEVICE WITH HORIZONTAL SIMULATION
CN103093756B (en) * 2011-11-01 2015-08-12 联芯科技有限公司 Method of comfort noise generation and Comfort Noise Generator
CN103137133B (en) * 2011-11-29 2017-06-06 南京中兴软件有限责任公司 Inactive sound modulated parameter estimating method and comfort noise production method and system
US20140278380A1 (en) * 2013-03-14 2014-09-18 Dolby Laboratories Licensing Corporation Spectral and Spatial Modification of Noise Captured During Teleconferencing
WO2014161994A2 (en) 2013-04-05 2014-10-09 Dolby International Ab Advanced quantizer
CN104217723B (en) * 2013-05-30 2016-11-09 华为技术有限公司 Coding method and equipment
EP2980790A1 (en) * 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for comfort noise generation mode selection
US9978392B2 (en) * 2016-09-09 2018-05-22 Tata Consultancy Services Limited Noisy signal identification from non-stationary audio signals
US10325588B2 (en) * 2017-09-28 2019-06-18 International Business Machines Corporation Acoustic feature extractor selected according to status flag of frame of acoustic signal

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SE501981C2 (en) * 1993-11-02 1995-07-03 Ericsson Telefon Ab L M Method and apparatus for discriminating between stationary and non-stationary signals
FI100932B (en) * 1995-04-12 1998-03-13 Nokia Telecommunications Oy Transmission of audio frequency signals in a radiotelephone system
FR2739995B1 (en) * 1995-10-13 1997-12-12 Massaloux Dominique METHOD AND DEVICE FOR CREATING COMFORT NOISE IN A DIGITAL SPEECH TRANSMISSION SYSTEM
US5960389A (en) * 1996-11-15 1999-09-28 Nokia Mobile Phones Limited Methods for generating comfort noise during discontinuous transmission
US5991718A (en) * 1998-02-27 1999-11-23 At&T Corp. System and method for noise threshold adaptation for voice activity detection in nonstationary noise environments
WO2000011649A1 (en) 1998-08-24 2000-03-02 Conexant Systems, Inc. Speech encoder using a classifier for smoothing noise coding
US6823303B1 (en) 1998-08-24 2004-11-23 Conexant Systems, Inc. Speech encoder using voice activity detection in coding noise
FI105635B (en) 1998-09-01 2000-09-15 Nokia Mobile Phones Ltd Method of transmitting background noise information during data transfer in data frames
US7124079B1 (en) 1998-11-23 2006-10-17 Telefonaktiebolaget Lm Ericsson (Publ) Speech coding with comfort noise variability feature for increased fidelity

Also Published As

Publication number Publication date
JP3996848B2 (en) 2007-10-24
DE60122203T2 (en) 2007-08-30
CA2428888A1 (en) 2002-05-30
CN1265353C (en) 2006-07-19
US6662155B2 (en) 2003-12-09
ZA200303829B (en) 2004-07-28
EP1337999A2 (en) 2003-08-27
ATE336059T1 (en) 2006-09-15
KR20040005860A (en) 2004-01-16
WO2002043048A2 (en) 2002-05-30
WO2002043048A3 (en) 2002-12-05
JP2004525540A (en) 2004-08-19
EP1337999B1 (en) 2006-08-09
BR0115601A (en) 2004-12-28
US20020103643A1 (en) 2002-08-01
DE60122203D1 (en) 2006-09-21
CA2428888C (en) 2007-10-30
CN1513168A (en) 2004-07-14
ES2269518T3 (en) 2007-04-01

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