DE602007006957D1 - Verfahren und vorrichtung zur verlustlosen codierung eines quellensignals unter verwendung eines verlustbehaftet codierten datenstroms und eines verlustlosen erweiterungsdatenstroms - Google Patents

Verfahren und vorrichtung zur verlustlosen codierung eines quellensignals unter verwendung eines verlustbehaftet codierten datenstroms und eines verlustlosen erweiterungsdatenstroms

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Publication number
DE602007006957D1
DE602007006957D1 DE602007006957T DE602007006957T DE602007006957D1 DE 602007006957 D1 DE602007006957 D1 DE 602007006957D1 DE 602007006957 T DE602007006957 T DE 602007006957T DE 602007006957 T DE602007006957 T DE 602007006957T DE 602007006957 D1 DE602007006957 D1 DE 602007006957D1
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Germany
Prior art keywords
loss
lossy
lossless
data stream
coding
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DE602007006957T
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German (de)
English (en)
Inventor
Peter Jax
Florian Keiler
Oliver Wuebbolt
Sven Kordon
Johannes Boehm
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.)
Thomson Licensing SAS
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Thomson Licensing SAS
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Application filed by Thomson Licensing SAS filed Critical Thomson Licensing SAS
Publication of DE602007006957D1 publication Critical patent/DE602007006957D1/de
Active legal-status Critical Current
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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
    • G10L19/04—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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • 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
    • 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
    • G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • 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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Theoretical Computer Science (AREA)
  • Probability & Statistics with Applications (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
DE602007006957T 2006-07-24 2007-07-12 Verfahren und vorrichtung zur verlustlosen codierung eines quellensignals unter verwendung eines verlustbehaftet codierten datenstroms und eines verlustlosen erweiterungsdatenstroms Active DE602007006957D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06117720A EP1883067A1 (en) 2006-07-24 2006-07-24 Method and apparatus for lossless encoding of a source signal, using a lossy encoded data stream and a lossless extension data stream
PCT/EP2007/057210 WO2008012211A1 (en) 2006-07-24 2007-07-12 Method and apparatus for lossless encoding of a source signal, using a lossy encoded data stream and a lossless extension data stream

Publications (1)

Publication Number Publication Date
DE602007006957D1 true DE602007006957D1 (de) 2010-07-15

Family

ID=37203831

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602007006957T Active DE602007006957D1 (de) 2006-07-24 2007-07-12 Verfahren und vorrichtung zur verlustlosen codierung eines quellensignals unter verwendung eines verlustbehaftet codierten datenstroms und eines verlustlosen erweiterungsdatenstroms

Country Status (9)

Country Link
US (1) US20090306993A1 (https=)
EP (2) EP1883067A1 (https=)
JP (1) JP5123303B2 (https=)
KR (1) KR101397736B1 (https=)
CN (1) CN101490748B (https=)
AT (1) ATE470219T1 (https=)
BR (1) BRPI0714835A2 (https=)
DE (1) DE602007006957D1 (https=)
WO (1) WO2008012211A1 (https=)

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DE102006051673A1 (de) * 2006-11-02 2008-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Nachbearbeiten von Spektralwerten und Encodierer und Decodierer für Audiosignale
JP4977157B2 (ja) * 2009-03-06 2012-07-18 株式会社エヌ・ティ・ティ・ドコモ 音信号符号化方法、音信号復号方法、符号化装置、復号装置、音信号処理システム、音信号符号化プログラム、及び、音信号復号プログラム
BR122022013454B1 (pt) 2009-10-20 2023-05-16 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Codificador de áudio, decodificador de áudio, método para codificar uma informação de áudio, método para decodificar uma informação de áudio que utiliza uma detecção de um grupo de valores espectrais previamente decodificados
AU2011206677B9 (en) 2010-01-12 2014-12-11 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder, audio decoder, method for encoding and decoding an audio information, and computer program obtaining a context sub-region value on the basis of a norm of previously decoded spectral values
CN101964188B (zh) * 2010-04-09 2012-09-05 华为技术有限公司 语音信号编码、解码方法、装置及编解码系统
FR2961937A1 (fr) * 2010-06-29 2011-12-30 France Telecom Codage/decodage predictif lineaire adaptatif
PT2700234T (pt) * 2011-04-22 2019-07-23 Dolby Int Ab Método e dispositivo para codificação com compressão com perda de dados
GB2490879B (en) * 2011-05-12 2018-12-26 Qualcomm Technologies Int Ltd Hybrid coded audio data streaming apparatus and method
EP2805493A1 (en) * 2012-01-17 2014-11-26 Futurewei Technologies, Inc. In-loop filtering for lossless coding mode in high efficiency video coding
GB201210373D0 (en) 2012-06-12 2012-07-25 Meridian Audio Ltd Doubly compatible lossless audio sandwidth extension
US9711150B2 (en) 2012-08-22 2017-07-18 Electronics And Telecommunications Research Institute Audio encoding apparatus and method, and audio decoding apparatus and method
MX372748B (es) * 2013-01-29 2020-05-26 Fraunhofer Ges Forschung Decodificador para generar una señal de audio mejorada en frecuencia, metodo de decodificacion, codificador para generar una señal codificada y metodo de codificacion utilizando informacion secundaria de seleccion compacta.
EP2956935B1 (en) 2013-02-14 2017-01-04 Dolby Laboratories Licensing Corporation Controlling the inter-channel coherence of upmixed audio signals
TWI618050B (zh) 2013-02-14 2018-03-11 杜比實驗室特許公司 用於音訊處理系統中之訊號去相關的方法及設備
WO2014126688A1 (en) 2013-02-14 2014-08-21 Dolby Laboratories Licensing Corporation Methods for audio signal transient detection and decorrelation control
TWI618051B (zh) 2013-02-14 2018-03-11 杜比實驗室特許公司 用於利用估計之空間參數的音頻訊號增強的音頻訊號處理方法及裝置
EP3660843B1 (en) 2013-09-13 2022-11-09 Samsung Electronics Co., Ltd. Lossless coding method
WO2015037961A1 (ko) 2013-09-13 2015-03-19 삼성전자 주식회사 에너지 무손실 부호화방법 및 장치, 신호 부호화방법 및 장치, 에너지 무손실 복호화방법 및 장치, 및 신호 복호화방법 및 장치
US10438597B2 (en) 2017-08-31 2019-10-08 Dolby International Ab Decoder-provided time domain aliasing cancellation during lossy/lossless transitions
CN114724567B (zh) * 2020-12-18 2025-04-15 同响科技股份有限公司 固定带宽音信数据的有损或无损压缩的动态切换方法
US12574137B2 (en) * 2022-10-12 2026-03-10 Ciena Corporation Method and apparatus for performing spread spectrum optical spectroscopy
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US6226616B1 (en) * 1999-06-21 2001-05-01 Digital Theater Systems, Inc. Sound quality of established low bit-rate audio coding systems without loss of decoder compatibility
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Also Published As

Publication number Publication date
JP2009544993A (ja) 2009-12-17
CN101490748B (zh) 2011-12-07
ATE470219T1 (de) 2010-06-15
BRPI0714835A2 (pt) 2013-03-12
EP2044589A1 (en) 2009-04-08
KR20090043498A (ko) 2009-05-06
KR101397736B1 (ko) 2014-05-20
CN101490748A (zh) 2009-07-22
US20090306993A1 (en) 2009-12-10
EP1883067A1 (en) 2008-01-30
JP5123303B2 (ja) 2013-01-23
WO2008012211A1 (en) 2008-01-31
EP2044589B1 (en) 2010-06-02

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