EP1120775A4 - Noise signal encoder and voice signal encoder - Google Patents

Noise signal encoder and voice signal encoder

Info

Publication number
EP1120775A4
EP1120775A4 EP00935511A EP00935511A EP1120775A4 EP 1120775 A4 EP1120775 A4 EP 1120775A4 EP 00935511 A EP00935511 A EP 00935511A EP 00935511 A EP00935511 A EP 00935511A EP 1120775 A4 EP1120775 A4 EP 1120775A4
Authority
EP
European Patent Office
Prior art keywords
signal encoder
voice signal
noise signal
noise
voice
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Withdrawn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
EP00935511A
Other languages
German (de)
French (fr)
Other versions
EP1120775A1 (en
Inventor
Koji Yoshida
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of EP1120775A1 publication Critical patent/EP1120775A1/en
Publication of EP1120775A4 publication Critical patent/EP1120775A4/en
Withdrawn legal-status Critical Current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
    • 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
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L2021/02168—Noise filtering characterised by the method used for estimating noise the estimation exclusively taking place during speech pauses

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
EP00935511A 1999-06-15 2000-06-01 Noise signal encoder and voice signal encoder Withdrawn EP1120775A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP16854599 1999-06-15
JP16854599A JP4464484B2 (en) 1999-06-15 1999-06-15 Noise signal encoding apparatus and speech signal encoding apparatus
PCT/JP2000/003526 WO2000077774A1 (en) 1999-06-15 2000-06-01 Noise signal encoder and voice signal encoder

Publications (2)

Publication Number Publication Date
EP1120775A1 EP1120775A1 (en) 2001-08-01
EP1120775A4 true EP1120775A4 (en) 2001-09-26

Family

ID=15870014

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00935511A Withdrawn EP1120775A4 (en) 1999-06-15 2000-06-01 Noise signal encoder and voice signal encoder

Country Status (5)

Country Link
EP (1) EP1120775A4 (en)
JP (1) JP4464484B2 (en)
CN (1) CN1313983A (en)
AU (1) AU5103700A (en)
WO (1) WO2000077774A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4769121B2 (en) * 2006-05-15 2011-09-07 日本電信電話株式会社 Server / client type speech recognition method, apparatus, server / client type speech recognition program, and recording medium
JP5282906B2 (en) * 2007-06-27 2013-09-04 日本電気株式会社 Multipoint connection apparatus, signal analysis and apparatus, method and program thereof
CN101546557B (en) * 2008-03-28 2011-03-23 展讯通信（上海）有限公司 Method for updating classifier parameters for identifying audio content
US20120095760A1 (en) * 2008-12-19 2012-04-19 Ojala Pasi S Apparatus, a method and a computer program for coding
KR101551046B1 (en) 2011-02-14 2015-09-07 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. Apparatus and method for error concealment in low-delay unified speech and audio coding
PL2676265T3 (en) 2011-02-14 2019-09-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for encoding an audio signal using an aligned look-ahead portion
TWI488176B (en) 2011-02-14 2015-06-11 Fraunhofer Ges Forschung Encoding and decoding of pulse positions of tracks of an audio signal
PL2676264T3 (en) 2011-02-14 2015-06-30 Fraunhofer Ges Forschung Audio encoder estimating background noise during active phases
MY166394A (en) 2011-02-14 2018-06-25 Fraunhofer Ges Forschung Information signal representation using lapped transform
ES2639646T3 (en) 2011-02-14 2017-10-27 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Encoding and decoding of track pulse positions of an audio signal
KR101525185B1 (en) 2011-02-14 2015-06-02 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. Apparatus and method for coding a portion of an audio signal using a transient detection and a quality result
CN103477387B (en) 2011-02-14 2015-11-25 弗兰霍菲尔运输应用研究公司 Use the encoding scheme based on linear prediction of spectrum domain noise shaping
BR112013020482B1 (en) 2011-02-14 2021-02-23 Fraunhofer Ges Forschung apparatus and method for processing a decoded audio signal in a spectral domain
CN104469250B (en) * 2013-09-23 2019-07-26 联想(北京)有限公司 A kind of information processing method and electronic equipment
EP3010017A1 (en) * 2014-10-14 2016-04-20 Thomson Licensing Method and apparatus for separating speech data from background data in audio communication
CN106971741B (en) * 2016-01-14 2020-12-01 芋头科技（杭州）有限公司 Method and system for voice noise reduction for separating voice in real time
WO2017208820A1 (en) 2016-05-30 2017-12-07 ソニー株式会社 Video sound processing device, video sound processing method, and program

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1039898A (en) * 1996-07-22 1998-02-13 Nec Corp Voice signal transmission method and voice coding decoding system
EP0843301A2 (en) * 1996-11-15 1998-05-20 Nokia Mobile Phones Ltd. Methods for generating comfort noise during discontinous transmission
US5809460A (en) * 1993-11-05 1998-09-15 Nec Corporation Speech decoder having an interpolation circuit for updating background noise
WO2000075919A1 (en) * 1999-06-07 2000-12-14 Ericsson, Inc. Methods and apparatus for generating comfort noise using parametric noise model statistics

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2692104B2 (en) * 1988-02-12 1997-12-17 株式会社日立製作所 Voice multiplexing system
JP3173639B2 (en) * 1995-05-26 2001-06-04 株式会社エヌ・ティ・ティ・ドコモ Background noise update system and method
JP2806308B2 (en) * 1995-06-30 1998-09-30 日本電気株式会社 Audio decoding device
JP3575967B2 (en) * 1996-12-02 2004-10-13 沖電気工業株式会社 Voice communication system and voice communication method
JP3119204B2 (en) * 1997-06-27 2000-12-18 日本電気株式会社 Audio coding device
JP2000122698A (en) * 1998-10-19 2000-04-28 Mitsubishi Electric Corp Voice encoder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5809460A (en) * 1993-11-05 1998-09-15 Nec Corporation Speech decoder having an interpolation circuit for updating background noise
JPH1039898A (en) * 1996-07-22 1998-02-13 Nec Corp Voice signal transmission method and voice coding decoding system
US5953698A (en) * 1996-07-22 1999-09-14 Nec Corporation Speech signal transmission with enhanced background noise sound quality
EP0843301A2 (en) * 1996-11-15 1998-05-20 Nokia Mobile Phones Ltd. Methods for generating comfort noise during discontinous transmission
WO2000075919A1 (en) * 1999-06-07 2000-12-14 Ericsson, Inc. Methods and apparatus for generating comfort noise using parametric noise model statistics

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 06 30 April 1998 (1998-04-30) *
See also references of WO0077774A1 *

Also Published As

Publication number Publication date
JP2000357000A (en) 2000-12-26
WO2000077774A1 (en) 2000-12-21
CN1313983A (en) 2001-09-19
JP4464484B2 (en) 2010-05-19
EP1120775A1 (en) 2001-08-01
AU5103700A (en) 2001-01-02

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