DE602004024811D1 - Eine methode zur gruppierung kurzer fenster in der audiokodierung - Google Patents

Eine methode zur gruppierung kurzer fenster in der audiokodierung

Info

Publication number
DE602004024811D1
DE602004024811D1 DE602004024811T DE602004024811T DE602004024811D1 DE 602004024811 D1 DE602004024811 D1 DE 602004024811D1 DE 602004024811 T DE602004024811 T DE 602004024811T DE 602004024811 T DE602004024811 T DE 602004024811T DE 602004024811 D1 DE602004024811 D1 DE 602004024811D1
Authority
DE
Germany
Prior art keywords
audio coding
short windows
grouping short
grouping
windows
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.)
Active
Application number
DE602004024811T
Other languages
English (en)
Inventor
Jeongnam Youn
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.)
Sony Electronics Inc
Original Assignee
Sony Electronics Inc
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 Sony Electronics Inc filed Critical Sony Electronics Inc
Publication of DE602004024811D1 publication Critical patent/DE602004024811D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • G10L19/025—Detection of transients or attacks for time/frequency resolution switching
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
DE602004024811T 2003-09-29 2004-09-27 Eine methode zur gruppierung kurzer fenster in der audiokodierung Active DE602004024811D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/674,982 US7283968B2 (en) 2003-09-29 2003-09-29 Method for grouping short windows in audio encoding
PCT/US2004/031585 WO2005034081A2 (en) 2003-09-29 2004-09-27 A method for grouping short windows in audio encoding

Publications (1)

Publication Number Publication Date
DE602004024811D1 true DE602004024811D1 (de) 2010-02-04

Family

ID=34393518

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004024811T Active DE602004024811D1 (de) 2003-09-29 2004-09-27 Eine methode zur gruppierung kurzer fenster in der audiokodierung

Country Status (7)

Country Link
US (1) US7283968B2 (de)
EP (1) EP1673765B1 (de)
JP (1) JP4750707B2 (de)
KR (1) KR101102016B1 (de)
CN (1) CN1918629B (de)
DE (1) DE602004024811D1 (de)
WO (1) WO2005034081A2 (de)

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CN101790756B (zh) 2007-08-27 2012-09-05 爱立信电话股份有限公司 瞬态检测器以及用于支持音频信号的编码的方法
US20090144054A1 (en) * 2007-11-30 2009-06-04 Kabushiki Kaisha Toshiba Embedded system to perform frame switching
EP2242047B1 (de) * 2008-01-09 2017-03-15 LG Electronics Inc. Verfahren und vorrichtung zur identifizierung von rahmentypen
CN101751928B (zh) * 2008-12-08 2012-06-13 扬智科技股份有限公司 应用音频帧频谱平坦度简化声学模型分析的方法及其装置
KR101297026B1 (ko) * 2009-05-19 2013-08-14 광운대학교 산학협력단 Ｍｄｃｔ―ｔｃｘ 프레임과 ｃｅｌｐ 프레임 간 연동을 위한 윈도우 처리 장치 및 윈도우 처리 방법
CN103325373A (zh) 2012-03-23 2013-09-25 杜比实验室特许公司 用于传送和接收音频信号的方法和设备
EP2830058A1 (de) * 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Frequenzbereichsaudiocodierung mit Unterstützung von Transformationslängenschaltung
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Also Published As

Publication number Publication date
US7283968B2 (en) 2007-10-16
KR101102016B1 (ko) 2012-01-04
EP1673765A2 (de) 2006-06-28
JP4750707B2 (ja) 2011-08-17
WO2005034081A3 (en) 2006-04-27
JP2007507751A (ja) 2007-03-29
CN1918629A (zh) 2007-02-21
EP1673765B1 (de) 2009-12-23
WO2005034081A2 (en) 2005-04-14
CN1918629B (zh) 2010-05-26
KR20060131732A (ko) 2006-12-20
EP1673765A4 (de) 2008-12-31
US20050075861A1 (en) 2005-04-07

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