ATE520123T1 - Verfahren zur trainierten diskrimination und dämpfung von echos eines digitalsignals in einem decoder und entsprechende einrichtung - Google Patents

Verfahren zur trainierten diskrimination und dämpfung von echos eines digitalsignals in einem decoder und entsprechende einrichtung

Info

Publication number
ATE520123T1
ATE520123T1 AT07731611T AT07731611T ATE520123T1 AT E520123 T1 ATE520123 T1 AT E520123T1 AT 07731611 T AT07731611 T AT 07731611T AT 07731611 T AT07731611 T AT 07731611T AT E520123 T1 ATE520123 T1 AT E520123T1
Authority
AT
Austria
Prior art keywords
echoes
attenuation
discriminating
echos
decoder
Prior art date
Application number
AT07731611T
Other languages
English (en)
Inventor
Balazs Kovesi
Guyader Alain Le
Original Assignee
France Telecom
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 France Telecom filed Critical France Telecom
Application granted granted Critical
Publication of ATE520123T1 publication Critical patent/ATE520123T1/de

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
    • 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
    • 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
    • G10L19/04—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 using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • 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
    • G10L19/04—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 using predictive techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
AT07731611T 2006-02-20 2007-02-13 Verfahren zur trainierten diskrimination und dämpfung von echos eines digitalsignals in einem decoder und entsprechende einrichtung ATE520123T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0601466A FR2897733A1 (fr) 2006-02-20 2006-02-20 Procede de discrimination et d'attenuation fiabilisees des echos d'un signal numerique dans un decodeur et dispositif correspondant
PCT/FR2007/050786 WO2007096552A2 (fr) 2006-02-20 2007-02-13 Procede de discrimination et d'attenuation fiabilisees des echos d'un signal numerique dans un decodeur et dispositif correspondant

Publications (1)

Publication Number Publication Date
ATE520123T1 true ATE520123T1 (de) 2011-08-15

Family

ID=36968787

Family Applications (1)

Application Number Title Priority Date Filing Date
AT07731611T ATE520123T1 (de) 2006-02-20 2007-02-13 Verfahren zur trainierten diskrimination und dämpfung von echos eines digitalsignals in einem decoder und entsprechende einrichtung

Country Status (8)

Country Link
US (1) US8756054B2 (de)
EP (1) EP2002428B1 (de)
JP (1) JP5202335B2 (de)
KR (1) KR101376762B1 (de)
CN (1) CN101390159B (de)
AT (1) ATE520123T1 (de)
FR (1) FR2897733A1 (de)
WO (1) WO2007096552A2 (de)

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US8463603B2 (en) * 2008-09-06 2013-06-11 Huawei Technologies Co., Ltd. Spectral envelope coding of energy attack signal
JP5295372B2 (ja) * 2008-09-17 2013-09-18 フランス・テレコム デジタルオーディオ信号におけるプリエコーの減衰
EP3079153B1 (de) 2010-07-02 2018-08-01 Dolby International AB Audiodekodierung mit selektiver nachfilterung
PL2550653T3 (pl) 2011-02-14 2014-09-30 Fraunhofer Ges Forschung Reprezentacja sygnału informacyjnego z użyciem transformacji zakładkowej
TWI488176B (zh) 2011-02-14 2015-06-11 Fraunhofer Ges Forschung 音訊信號音軌脈衝位置之編碼與解碼技術
WO2012110473A1 (en) 2011-02-14 2012-08-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for encoding and decoding an audio signal using an aligned look-ahead portion
WO2012110447A1 (en) 2011-02-14 2012-08-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for error concealment in low-delay unified speech and audio coding (usac)
AU2012217162B2 (en) 2011-02-14 2015-11-26 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Noise generation in audio codecs
EP2676268B1 (de) 2011-02-14 2014-12-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und verfahren zur verarbeitung eines dekodierten audiosignals in einem spektralbereich
WO2012110476A1 (en) 2011-02-14 2012-08-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Linear prediction based coding scheme using spectral domain noise shaping
JP5914527B2 (ja) 2011-02-14 2016-05-11 フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン 過渡検出及び品質結果を使用してオーディオ信号の一部分を符号化する装置及び方法
SG192718A1 (en) 2011-02-14 2013-09-30 Fraunhofer Ges Forschung Audio codec using noise synthesis during inactive phases
TR201903388T4 (tr) 2011-02-14 2019-04-22 Fraunhofer Ges Forschung Bir ses sinyalinin parçalarının darbe konumlarının şifrelenmesi ve çözülmesi.
CN102800317B (zh) * 2011-05-25 2014-09-17 华为技术有限公司 信号分类方法及设备、编解码方法及设备
KR20140085453A (ko) * 2011-10-27 2014-07-07 엘지전자 주식회사 음성 신호 부호화 방법 및 복호화 방법과 이를 이용하는 장치
US8712076B2 (en) 2012-02-08 2014-04-29 Dolby Laboratories Licensing Corporation Post-processing including median filtering of noise suppression gains
US9173025B2 (en) 2012-02-08 2015-10-27 Dolby Laboratories Licensing Corporation Combined suppression of noise, echo, and out-of-location signals
FR2992766A1 (fr) * 2012-06-29 2014-01-03 France Telecom Attenuation efficace de pre-echos dans un signal audionumerique
FR3000328A1 (fr) 2012-12-21 2014-06-27 France Telecom Attenuation efficace de pre-echos dans un signal audionumerique
FR3003683A1 (fr) * 2013-03-25 2014-09-26 France Telecom Mixage optimise de flux audio codes selon un codage par sous-bandes
FR3003682A1 (fr) * 2013-03-25 2014-09-26 France Telecom Mixage partiel optimise de flux audio codes selon un codage par sous-bandes
GB201401689D0 (en) * 2014-01-31 2014-03-19 Microsoft Corp Audio signal processing
FR3024581A1 (fr) * 2014-07-29 2016-02-05 Orange Determination d'un budget de codage d'une trame de transition lpd/fd
FR3025923A1 (fr) * 2014-09-12 2016-03-18 Orange Discrimination et attenuation de pre-echos dans un signal audionumerique
EP3382700A1 (de) * 2017-03-31 2018-10-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und verfahren zur nachbearbeitung eines audiosignals mit transienten-positionserkennung
CN107595311A (zh) * 2017-08-30 2018-01-19 沈阳东软医疗系统有限公司 双能量ct图像处理方法、装置以及设备
US10984808B2 (en) * 2019-07-09 2021-04-20 Blackberry Limited Method for multi-stage compression in sub-band processing
CN114242102A (zh) * 2021-12-20 2022-03-25 北京奕斯伟计算技术有限公司 用于语音交互系统的回声消除方法及电子设备和存储介质

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JP3341440B2 (ja) * 1994-02-04 2002-11-05 ソニー株式会社 情報符号化方法及び装置、情報復号化方法及び装置、並びに情報記録媒体
JPH08223049A (ja) * 1995-02-14 1996-08-30 Sony Corp 信号符号化方法及び装置、信号復号化方法及び装置、情報記録媒体並びに情報伝送方法
JP3307138B2 (ja) * 1995-02-27 2002-07-24 ソニー株式会社 信号符号化方法及び装置、並びに信号復号化方法及び装置
JP4290917B2 (ja) * 2002-02-08 2009-07-08 株式会社エヌ・ティ・ティ・ドコモ 復号装置、符号化装置、復号方法、及び、符号化方法
JP2005049429A (ja) * 2003-07-30 2005-02-24 Sharp Corp 符号化装置及びそれを用いた情報記録装置
US7443978B2 (en) * 2003-09-04 2008-10-28 Kabushiki Kaisha Toshiba Method and apparatus for audio coding with noise suppression
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FR2888704A1 (de) * 2005-07-12 2007-01-19 France Telecom

Also Published As

Publication number Publication date
KR101376762B1 (ko) 2014-03-21
US20090313009A1 (en) 2009-12-17
EP2002428A2 (de) 2008-12-17
FR2897733A1 (fr) 2007-08-24
EP2002428B1 (de) 2011-08-10
WO2007096552A2 (fr) 2007-08-30
KR20080103088A (ko) 2008-11-26
US8756054B2 (en) 2014-06-17
WO2007096552A3 (fr) 2007-10-18
JP5202335B2 (ja) 2013-06-05
JP2009527773A (ja) 2009-07-30
CN101390159A (zh) 2009-03-18
CN101390159B (zh) 2012-07-04

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