DK2056292T3 - Fremgangsmåde og apparat til tilvejebringelse af en dæmpningsfaktor - Google Patents

Fremgangsmåde og apparat til tilvejebringelse af en dæmpningsfaktor

Info

Publication number
DK2056292T3
DK2056292T3 DK08168328.6T DK08168328T DK2056292T3 DK 2056292 T3 DK2056292 T3 DK 2056292T3 DK 08168328 T DK08168328 T DK 08168328T DK 2056292 T3 DK2056292 T3 DK 2056292T3
Authority
DK
Denmark
Prior art keywords
signal
obtaining
attenuation factor
change trend
present
Prior art date
Application number
DK08168328.6T
Other languages
English (en)
Inventor
Wuzhou Zhan
Dongqi Wang
Yongfeng Tu
Jing Wang
Qing Zhang
Lei Miao
Jianfeng Xu
Chen Hu
Yi Yang
Zhengzhong Du
Fengyan Qi
Original Assignee
Huawei Tech 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 Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Application granted granted Critical
Publication of DK2056292T3 publication Critical patent/DK2056292T3/da

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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • 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
    • 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0204—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 spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/097—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters using prototype waveform decomposition or prototype waveform interpolative [PWI] coders

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)
  • Mobile Radio Communication Systems (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Fluid-Damping Devices (AREA)
  • Telephone Function (AREA)
  • Telephonic Communication Services (AREA)
  • Communication Control (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Networks Using Active Elements (AREA)
DK08168328.6T 2007-11-05 2008-11-05 Fremgangsmåde og apparat til tilvejebringelse af en dæmpningsfaktor DK2056292T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2007101696180A CN101207665B (zh) 2007-11-05 2007-11-05 一种衰减因子的获取方法

Publications (1)

Publication Number Publication Date
DK2056292T3 true DK2056292T3 (da) 2010-06-07

Family

ID=39567522

Family Applications (1)

Application Number Title Priority Date Filing Date
DK08168328.6T DK2056292T3 (da) 2007-11-05 2008-11-05 Fremgangsmåde og apparat til tilvejebringelse af en dæmpningsfaktor

Country Status (13)

Country Link
US (2) US8320265B2 (da)
EP (2) EP2056292B1 (da)
JP (2) JP4824734B2 (da)
KR (1) KR101168648B1 (da)
CN (4) CN101207665B (da)
AT (2) ATE458241T1 (da)
BR (1) BRPI0808765B1 (da)
DE (3) DE602008000668D1 (da)
DK (1) DK2056292T3 (da)
ES (1) ES2340975T3 (da)
HK (2) HK1142713A1 (da)
PL (1) PL2056292T3 (da)
WO (1) WO2009059497A1 (da)

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Also Published As

Publication number Publication date
US8320265B2 (en) 2012-11-27
KR20090046714A (ko) 2009-05-11
JP4824734B2 (ja) 2011-11-30
EP2056292B1 (en) 2010-02-17
EP2056292A3 (en) 2009-05-27
WO2009059497A1 (fr) 2009-05-14
US20090116486A1 (en) 2009-05-07
HK1142713A1 (en) 2010-12-10
BRPI0808765B1 (pt) 2020-09-15
BRPI0808765A2 (pt) 2014-09-16
PL2056292T3 (pl) 2010-07-30
CN101578657A (zh) 2009-11-11
EP2161719A3 (en) 2010-03-24
US20090316598A1 (en) 2009-12-24
CN102169692B (zh) 2014-04-30
CN101207665B (zh) 2010-12-08
DE602008000668D1 (de) 2010-04-01
EP2056292A2 (en) 2009-05-06
US7957961B2 (en) 2011-06-07
CN102682777A (zh) 2012-09-19
ATE458241T1 (de) 2010-03-15
DE602008002938D1 (de) 2010-11-18
CN102169692A (zh) 2011-08-31
CN101578657B (zh) 2012-11-07
ATE484052T1 (de) 2010-10-15
EP2161719A2 (en) 2010-03-10
ES2340975T3 (es) 2010-06-11
DE202008017752U1 (de) 2010-09-16
HK1155844A1 (en) 2012-05-25
CN102682777B (zh) 2013-11-06
CN101207665A (zh) 2008-06-25
JP2009175693A (ja) 2009-08-06
JP2010176142A (ja) 2010-08-12
EP2161719B1 (en) 2010-10-06
KR101168648B1 (ko) 2012-07-25
JP5255585B2 (ja) 2013-08-07

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