JP2004094223A - 多数のサブバンド及び重なり合うウィンドウ関数を用いて処理される音声信号を符号化及び復号化する方法及び装置 - Google Patents

多数のサブバンド及び重なり合うウィンドウ関数を用いて処理される音声信号を符号化及び復号化する方法及び装置 Download PDF

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JP2004094223A
JP2004094223A JP2003206719A JP2003206719A JP2004094223A JP 2004094223 A JP2004094223 A JP 2004094223A JP 2003206719 A JP2003206719 A JP 2003206719A JP 2003206719 A JP2003206719 A JP 2003206719A JP 2004094223 A JP2004094223 A JP 2004094223A
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JP2004094223A5 (enExample
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Walter Voessing
ヴァルター　フェーシング
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    • 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
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/667—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using a division in frequency subbands

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computational Linguistics (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)
JP2003206719A 2002-08-28 2003-08-08 多数のサブバンド及び重なり合うウィンドウ関数を用いて処理される音声信号を符号化及び復号化する方法及び装置 Ceased JP2004094223A (ja)

Applications Claiming Priority (1)

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EP02090308A EP1394772A1 (en) 2002-08-28 2002-08-28 Signaling of window switchings in a MPEG layer 3 audio data stream

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JP2004094223A true JP2004094223A (ja) 2004-03-25
JP2004094223A5 JP2004094223A5 (enExample) 2006-09-21

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US (1) US20040158472A1 (enExample)
EP (1) EP1394772A1 (enExample)
JP (1) JP2004094223A (enExample)
KR (1) KR20040019889A (enExample)
CN (1) CN1487746A (enExample)
DE (1) DE60300500T2 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013522657A (ja) * 2010-03-11 2013-06-13 フラウンホーファーゲゼルシャフト ツール フォルデルング デル アンゲヴァンテン フォルシユング エー．フアー． 信号処理器、窓提供部、符号化されたメディア信号、信号を処理するための方法および窓を提供するための方法

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* Cited by examiner, † Cited by third party
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KR100530377B1 (ko) * 2003-12-30 2005-11-22 삼성전자주식회사 엠펙 오디오 디코더의 합성필터 및 그 디코딩 방법
BRPI0517513A (pt) * 2004-10-26 2008-10-14 Matsushita Electric Industrial Co Ltd aparelho de codificação de som e processo de sua realização
KR100668319B1 (ko) * 2004-12-07 2007-01-12 삼성전자주식회사 오디오 신호의 변환방법 및 장치와 오디오 신호에적응적인 부호화방법 및 장치, 오디오 신호의 역변환 방법및 장치와 오디오 신호에 적응적인 복호화 방법 및 장치
EP1853092B1 (en) 2006-05-04 2011-10-05 LG Electronics, Inc. Enhancing stereo audio with remix capability
CN101652810B (zh) * 2006-09-29 2012-04-11 Lg电子株式会社 用于处理混合信号的装置及其方法
CN101529898B (zh) 2006-10-12 2014-09-17 Lg电子株式会社 用于处理混合信号的装置及其方法
KR20080053739A (ko) * 2006-12-11 2008-06-16 삼성전자주식회사 적응적으로 윈도우 크기를 적용하는 부호화 장치 및 방법
WO2008151137A2 (en) * 2007-06-01 2008-12-11 The Trustees Of Columbia University In The City Of New York Real-time time encoding and decoding machines
WO2009006405A1 (en) 2007-06-28 2009-01-08 The Trustees Of Columbia University In The City Of New York Multi-input multi-output time encoding and decoding machines
MY181247A (en) * 2008-07-11 2020-12-21 Frauenhofer Ges Zur Forderung Der Angenwandten Forschung E V Audio encoder and decoder for encoding and decoding audio samples
EP2315358A1 (en) 2009-10-09 2011-04-27 Thomson Licensing Method and device for arithmetic encoding or arithmetic decoding
CN101894557B (zh) * 2010-06-12 2011-12-07 北京航空航天大学 一种用于aac编码的窗型判别方法
WO2012109407A1 (en) 2011-02-09 2012-08-16 The Trustees Of Columbia University In The City Of New York Encoding and decoding machine with recurrent neural networks
KR20130109793A (ko) * 2012-03-28 2013-10-08 삼성전자주식회사 잡음 감쇄를 위한 오디오 신호 부호화 방법 및 장치
JP6163545B2 (ja) 2012-06-14 2017-07-12 ドルビー・インターナショナル・アーベー 可変数の受信チャネルに基づくマルチチャネル・オーディオ・レンダリングのためのなめらかな構成切り換え
MY185210A (en) 2013-02-20 2021-04-30 Fraunhofer Ges Forschung Apparatus and method for generating an encoded signal or for decoding an encoded audio signal using a multi overlap portion

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5956674A (en) * 1995-12-01 1999-09-21 Digital Theater Systems, Inc. Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels
US6128597A (en) * 1996-05-03 2000-10-03 Lsi Logic Corporation Audio decoder with a reconfigurable downmixing/windowing pipeline and method therefor
US6122619A (en) * 1998-06-17 2000-09-19 Lsi Logic Corporation Audio decoder with programmable downmixing of MPEG/AC-3 and method therefor
JP2000134105A (ja) * 1998-10-29 2000-05-12 Matsushita Electric Ind Co Ltd オーディオ変換符号化に用いられるブロックサイズを決定し適応させる方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013522657A (ja) * 2010-03-11 2013-06-13 フラウンホーファーゲゼルシャフト ツール フォルデルング デル アンゲヴァンテン フォルシユング エー．フアー． 信号処理器、窓提供部、符号化されたメディア信号、信号を処理するための方法および窓を提供するための方法
JP2013531264A (ja) * 2010-03-11 2013-08-01 フラウンホーファーゲゼルシャフト ツール フォルデルング デル アンゲヴァンテン フォルシユング エー．フアー． 信号処理器、窓提供部、符号化されたメディア信号、信号を処理するための方法および窓を提供するための方法
US8907822B2 (en) 2010-03-11 2014-12-09 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Signal processor, window provider, encoded media signal, method for processing a signal and method for providing a window
US9252803B2 (en) 2010-03-11 2016-02-02 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Signal processor, window provider, encoded media signal, method for processing a signal and method for providing a window

Also Published As

Publication number Publication date
KR20040019889A (ko) 2004-03-06
EP1394772A1 (en) 2004-03-03
US20040158472A1 (en) 2004-08-12
DE60300500D1 (de) 2005-05-19
CN1487746A (zh) 2004-04-07
DE60300500T2 (de) 2005-09-15

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