CN1487746A - 编码或解码音频信号的方法和设备 - Google Patents

编码或解码音频信号的方法和设备 Download PDF

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Publication number
CN1487746A
CN1487746A CNA031543871A CN03154387A CN1487746A CN 1487746 A CN1487746 A CN 1487746A CN A031543871 A CNA031543871 A CN A031543871A CN 03154387 A CN03154387 A CN 03154387A CN 1487746 A CN1487746 A CN 1487746A
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CN
China
Prior art keywords
subband
window
signal
type
block
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Pending
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CNA031543871A
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English (en)
Chinese (zh)
Inventor
�߶��ء�ά��ɭ
瓦尔特·维尔森
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Thomson Licensing SAS
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Thomson Licensing SAS
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Publication of CN1487746A publication Critical patent/CN1487746A/zh
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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)
CNA031543871A 2002-08-28 2003-08-21 编码或解码音频信号的方法和设备 Pending CN1487746A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP02090308.4 2002-08-28
EP02090308A EP1394772A1 (en) 2002-08-28 2002-08-28 Signaling of window switchings in a MPEG layer 3 audio data stream

Publications (1)

Publication Number Publication Date
CN1487746A true CN1487746A (zh) 2004-04-07

Family

ID=31197944

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA031543871A Pending CN1487746A (zh) 2002-08-28 2003-08-21 编码或解码音频信号的方法和设备

Country Status (6)

Country Link
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 (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101894557A (zh) * 2010-06-12 2010-11-24 北京航空航天大学 一种用于aac编码的窗型判别方法
CN101061533B (zh) * 2004-10-26 2011-05-18 松下电器产业株式会社 语音编码装置和语音编码方法
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
US8213641B2 (en) 2006-05-04 2012-07-03 Lg Electronics Inc. Enhancing audio with remix capability
CN102089811B (zh) * 2008-07-11 2013-04-10 弗朗霍夫应用科学研究促进协会 用于编码和解码音频样本的音频编码器和解码器
US9418667B2 (en) 2006-10-12 2016-08-16 Lg Electronics Inc. Apparatus for processing a mix signal and method thereof
TWI874108B (zh) * 2009-10-09 2025-02-21 瑞典商杜比國際公司 用以解碼譜係數之方法與設備及電腦可讀儲存媒體

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100530377B1 (ko) * 2003-12-30 2005-11-22 삼성전자주식회사 엠펙 오디오 디코더의 합성필터 및 그 디코딩 방법
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
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
EP2372704A1 (en) 2010-03-11 2011-10-05 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Signal processor and method for processing a signal
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 (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101061533B (zh) * 2004-10-26 2011-05-18 松下电器产业株式会社 语音编码装置和语音编码方法
US8213641B2 (en) 2006-05-04 2012-07-03 Lg Electronics Inc. Enhancing 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
US9418667B2 (en) 2006-10-12 2016-08-16 Lg Electronics Inc. Apparatus for processing a mix signal and method thereof
CN102089811B (zh) * 2008-07-11 2013-04-10 弗朗霍夫应用科学研究促进协会 用于编码和解码音频样本的音频编码器和解码器
TWI874108B (zh) * 2009-10-09 2025-02-21 瑞典商杜比國際公司 用以解碼譜係數之方法與設備及電腦可讀儲存媒體
US12334958B2 (en) 2009-10-09 2025-06-17 Dolby Laboratories Licensing Corporation Method and device for arithmetic encoding or arithmetic decoding
US12463660B2 (en) 2009-10-09 2025-11-04 Dolby Laboratories Licensing Corporation Method and device for arithmetic encoding or arithmetic decoding
CN101894557A (zh) * 2010-06-12 2010-11-24 北京航空航天大学 一种用于aac编码的窗型判别方法

Also Published As

Publication number Publication date
KR20040019889A (ko) 2004-03-06
JP2004094223A (ja) 2004-03-25
EP1394772A1 (en) 2004-03-03
US20040158472A1 (en) 2004-08-12
DE60300500D1 (de) 2005-05-19
DE60300500T2 (de) 2005-09-15

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