WO2004021710A3 - Vorrichtung und verfahren zum skalierbaren codieren und vorrichtung und verfahren zum skalierbaren decodieren eines audiosignales - Google Patents

Vorrichtung und verfahren zum skalierbaren codieren und vorrichtung und verfahren zum skalierbaren decodieren eines audiosignales Download PDF

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Publication number
WO2004021710A3
WO2004021710A3 PCT/EP2003/008623 EP0308623W WO2004021710A3 WO 2004021710 A3 WO2004021710 A3 WO 2004021710A3 EP 0308623 W EP0308623 W EP 0308623W WO 2004021710 A3 WO2004021710 A3 WO 2004021710A3
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Prior art keywords
scaling layer
partial scaling
scalable
partial
spectrum
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PCT/EP2003/008623
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English (en)
French (fr)
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WO2004021710A2 (de
Inventor
Ralf Geiger
Thomas Sporer
Karlheinz Brandenburg
Juergen Herre
Juergen Koller
Gerald Schuller
Original Assignee
Fraunhofer Ges Forschung
Ralf Geiger
Thomas Sporer
Karlheinz Brandenburg
Juergen Herre
Juergen Koller
Gerald Schuller
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.)
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Publication date
Application filed by Fraunhofer Ges Forschung, Ralf Geiger, Thomas Sporer, Karlheinz Brandenburg, Juergen Herre, Juergen Koller, Gerald Schuller filed Critical Fraunhofer Ges Forschung
Priority to EP03790855.5A priority Critical patent/EP1502255B1/de
Priority to JP2004531856A priority patent/JP4043476B2/ja
Priority to AU2003250209A priority patent/AU2003250209A1/en
Publication of WO2004021710A2 publication Critical patent/WO2004021710A2/de
Publication of WO2004021710A3 publication Critical patent/WO2004021710A3/de
Priority to HK05104838.3A priority patent/HK1072122A1/xx

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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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/147—Discrete orthonormal transforms, e.g. discrete cosine transform, discrete sine transform, and variations therefrom, e.g. modified discrete cosine transform, integer transforms approximating the discrete cosine transform
    • 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
    • G10L19/04—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

Abstract

Eine Vorrichtung zum skalierbaren Codieren eines Spektrums eines Signals, das Audio- und/oder Videoinformationen um-faßt, wobei das Spektrum binäre Spektralwerte aufweist, die in Bändern gruppiert sind, umfaßt eine Einrichtung (102) zum Erzeugen einer ersten Teilskalierungsschicht und einer zweiten Teilskalierungsschicht sowie eine Einrichtung (106) zum Bilden des codierten Signals, wobei die Einrichtung (106) zum Bilden ausgebildet ist, um die erste Teilskalie-rungsschicht und die zweite Teilskalierungsschicht so in das codierte Signal aufzunehmen, daß die erste und die zweite Teilskalierungsschicht getrennt voneinander deco-dierbar sind. Eine Teilskalierungsschicht umfaßt im Gegensatz zu einer Vollskalierungsschicht nur die Bits bestimmter Ordnung eines Teils der binären Spektralwerte in dem Band, so daß durch zusätzliche Decodierung einer Teilskalierungsschicht ein feiner steuerbarer und feiner skalierbarer Genauigkeitsgewinn erzielbar ist.
PCT/EP2003/008623 2002-08-09 2003-08-04 Vorrichtung und verfahren zum skalierbaren codieren und vorrichtung und verfahren zum skalierbaren decodieren eines audiosignales WO2004021710A2 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP03790855.5A EP1502255B1 (de) 2002-08-09 2003-08-04 Vorrichtung und verfahren zum skalierbaren codieren und vorrichtung und verfahren zum skalierbaren decodieren eines audiosignales
JP2004531856A JP4043476B2 (ja) 2002-08-09 2003-08-04 スケーラブルエンコーディングのための方法および装置ならびにスケーラブルデコーディングのための方法および装置
AU2003250209A AU2003250209A1 (en) 2002-08-09 2003-08-04 Device and method for scalable coding and device and method for scalable decoding
HK05104838.3A HK1072122A1 (en) 2002-08-09 2005-06-08 Device and method for scalable coding and device and method for scalable decoding

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10236694.2 2002-08-09
DE10236694A DE10236694A1 (de) 2002-08-09 2002-08-09 Vorrichtung und Verfahren zum skalierbaren Codieren und Vorrichtung und Verfahren zum skalierbaren Decodieren

Publications (2)

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WO2004021710A2 WO2004021710A2 (de) 2004-03-11
WO2004021710A3 true WO2004021710A3 (de) 2004-04-22

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PCT/EP2003/008623 WO2004021710A2 (de) 2002-08-09 2003-08-04 Vorrichtung und verfahren zum skalierbaren codieren und vorrichtung und verfahren zum skalierbaren decodieren eines audiosignales

Country Status (8)

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US (1) US7343287B2 (de)
EP (1) EP1502255B1 (de)
JP (1) JP4043476B2 (de)
CN (1) CN1332373C (de)
AU (1) AU2003250209A1 (de)
DE (1) DE10236694A1 (de)
HK (1) HK1072122A1 (de)
WO (1) WO2004021710A2 (de)

Families Citing this family (90)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7610205B2 (en) * 2002-02-12 2009-10-27 Dolby Laboratories Licensing Corporation High quality time-scaling and pitch-scaling of audio signals
US7711123B2 (en) * 2001-04-13 2010-05-04 Dolby Laboratories Licensing Corporation Segmenting audio signals into auditory events
US7461002B2 (en) * 2001-04-13 2008-12-02 Dolby Laboratories Licensing Corporation Method for time aligning audio signals using characterizations based on auditory events
DE10129240A1 (de) * 2001-06-18 2003-01-02 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Verarbeiten von zeitdiskreten Audio-Abtastwerten
DE10234130B3 (de) * 2002-07-26 2004-02-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Erzeugen einer komplexen Spektraldarstellung eines zeitdiskreten Signals
DE20321883U1 (de) * 2002-09-04 2012-01-20 Microsoft Corp. Computervorrichtung und -system zum Entropiedecodieren quantisierter Transformationskoeffizienten eines Blockes
KR100917464B1 (ko) * 2003-03-07 2009-09-14 삼성전자주식회사 대역 확장 기법을 이용한 디지털 데이터의 부호화 방법,그 장치, 복호화 방법 및 그 장치
US7822150B2 (en) * 2003-03-15 2010-10-26 Alcatel-Lucent Usa Inc. Spherical decoder for wireless communications
PL1629463T3 (pl) * 2003-05-28 2008-01-31 Dolby Laboratories Licensing Corp Sposób, urządzenie i program komputerowy do obliczania i regulowania odczuwalnej głośności sygnału akustycznego
EP1668533A4 (de) * 2003-09-29 2013-08-21 Agency Science Tech & Res Verfahren zur durchführung einer domänen-transformation eines digitalen signals aus der zeitdomäne in die frequenzdomäne und umgekehrt
KR100571824B1 (ko) * 2003-11-26 2006-04-17 삼성전자주식회사 부가정보 삽입된 ｍｐｅｇ-4 오디오 ｂｓａｃ부호화/복호화 방법 및 장치
KR100537517B1 (ko) * 2004-01-13 2005-12-19 삼성전자주식회사 오디오 데이타 변환 방법 및 장치
WO2005086139A1 (en) 2004-03-01 2005-09-15 Dolby Laboratories Licensing Corporation Multichannel audio coding
US7392195B2 (en) * 2004-03-25 2008-06-24 Dts, Inc. Lossless multi-channel audio codec
KR100773539B1 (ko) * 2004-07-14 2007-11-05 삼성전자주식회사 멀티채널 오디오 데이터 부호화/복호화 방법 및 장치
JP4558734B2 (ja) * 2004-07-28 2010-10-06 パナソニック株式会社 信号復号化装置
US7508947B2 (en) * 2004-08-03 2009-03-24 Dolby Laboratories Licensing Corporation Method for combining audio signals using auditory scene analysis
DE102004041418A1 (de) * 2004-08-26 2006-03-09 Micronas Gmbh Verfahren zur Codierung eines ersten und zweiten Datenwortes und Verfahren zur Decodierung eines codierten Datenwortes
US8199933B2 (en) 2004-10-26 2012-06-12 Dolby Laboratories Licensing Corporation Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal
WO2006047600A1 (en) 2004-10-26 2006-05-04 Dolby Laboratories Licensing Corporation Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal
KR100685992B1 (ko) 2004-11-10 2007-02-23 엘지전자 주식회사 디지털 방송 수신기에서 채널 전환시 정보 출력 방법
PL1839297T3 (pl) * 2005-01-11 2019-05-31 Koninklijke Philips Nv Skalowalne kodowanie/dekodowanie sygnałów audio
TWI397903B (zh) * 2005-04-13 2013-06-01 Dolby Lab Licensing Corp 編碼音訊之節約音量測量技術
KR100818268B1 (ko) * 2005-04-14 2008-04-02 삼성전자주식회사 오디오 데이터 부호화 및 복호화 장치와 방법
ES2435012T3 (es) * 2005-04-18 2013-12-18 Basf Se Copolímeros CP para la producción de preparaciones que contienen por lo menos un fungicida de conazol
WO2006132857A2 (en) * 2005-06-03 2006-12-14 Dolby Laboratories Licensing Corporation Apparatus and method for encoding audio signals with decoding instructions
EP1892702A4 (de) * 2005-06-17 2010-12-29 Panasonic Corp Nachfilter, decoder und nachfilterungsverfahren
US7693709B2 (en) * 2005-07-15 2010-04-06 Microsoft Corporation Reordering coefficients for waveform coding or decoding
US7684981B2 (en) * 2005-07-15 2010-03-23 Microsoft Corporation Prediction of spectral coefficients in waveform coding and decoding
TWI396188B (zh) * 2005-08-02 2013-05-11 Dolby Lab Licensing Corp 依聆聽事件之函數控制空間音訊編碼參數的技術
US7565018B2 (en) * 2005-08-12 2009-07-21 Microsoft Corporation Adaptive coding and decoding of wide-range coefficients
US7933337B2 (en) * 2005-08-12 2011-04-26 Microsoft Corporation Prediction of transform coefficients for image compression
KR100738077B1 (ko) * 2005-09-28 2007-07-12 삼성전자주식회사 계층적 오디오 부호화 및 복호화 장치와 방법
EP1949693B1 (de) * 2005-10-12 2012-04-18 Samsung Electronics Co., Ltd. Verfahren und vorrichtung zum verarbeiten/senden eines bitstroms und verfahren und vorrichtung zum empfangen/verarbeiten eines bitstroms
US8620644B2 (en) * 2005-10-26 2013-12-31 Qualcomm Incorporated Encoder-assisted frame loss concealment techniques for audio coding
US7590523B2 (en) * 2006-03-20 2009-09-15 Mindspeed Technologies, Inc. Speech post-processing using MDCT coefficients
ATE441920T1 (de) * 2006-04-04 2009-09-15 Dolby Lab Licensing Corp Lautstärkemessung von tonsignalen und änderung im mdct-bereich
TWI517562B (zh) 2006-04-04 2016-01-11 杜比實驗室特許公司 用於將多聲道音訊信號之全面感知響度縮放一期望量的方法、裝置及電腦程式
TWI455481B (zh) 2006-04-27 2014-10-01 Dolby Lab Licensing Corp 利用聽覺事件之聽覺場景分析與特定響度式檢測來控制音訊動態增益參數之非暫時性電腦可讀取儲存媒體、方法及裝置
EP1855271A1 (de) * 2006-05-12 2007-11-14 Deutsche Thomson-Brandt Gmbh Verfahren und Vorrichtung zur Wiederkodierung von Signalen
DE102006022346B4 (de) * 2006-05-12 2008-02-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Informationssignalcodierung
EP1883067A1 (de) * 2006-07-24 2008-01-30 Deutsche Thomson-Brandt Gmbh Verfahren und Vorrichtung für verlustfreie Kodierung eines Quellsignals, unter Benutzung eines verlustbehafteten kodierten Datenstroms und eines verlustfreien Erweiterungsdatenstroms.
MY144271A (en) 2006-10-20 2011-08-29 Dolby Lab Licensing Corp Audio dynamics processing using a reset
US8521314B2 (en) * 2006-11-01 2013-08-27 Dolby Laboratories Licensing Corporation Hierarchical control path with constraints for audio dynamics processing
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
US8184710B2 (en) 2007-02-21 2012-05-22 Microsoft Corporation Adaptive truncation of transform coefficient data in a transform-based digital media codec
JP4708446B2 (ja) 2007-03-02 2011-06-22 パナソニック株式会社 符号化装置、復号装置およびそれらの方法
WO2008114080A1 (en) * 2007-03-16 2008-09-25 Nokia Corporation Audio decoding
US8396574B2 (en) * 2007-07-13 2013-03-12 Dolby Laboratories Licensing Corporation Audio processing using auditory scene analysis and spectral skewness
CA2697604A1 (en) * 2007-09-28 2009-04-02 Voiceage Corporation Method and device for efficient quantization of transform information in an embedded speech and audio codec
EP2212884B1 (de) * 2007-11-06 2013-01-02 Nokia Corporation Codierer
PL2232700T3 (pl) * 2007-12-21 2015-01-30 Dts Llc System regulacji odczuwanej głośności sygnałów audio
US8386271B2 (en) * 2008-03-25 2013-02-26 Microsoft Corporation Lossless and near lossless scalable audio codec
US8179974B2 (en) 2008-05-02 2012-05-15 Microsoft Corporation Multi-level representation of reordered transform coefficients
MX2011000382A (es) 2008-07-11 2011-02-25 Fraunhofer Ges Forschung Codificador de audio, decodificador de audio, metodos para la codificacion y decodificacion de audio; transmision de audio y programa de computacion.
US8290782B2 (en) * 2008-07-24 2012-10-16 Dts, Inc. Compression of audio scale-factors by two-dimensional transformation
US8406307B2 (en) 2008-08-22 2013-03-26 Microsoft Corporation Entropy coding/decoding of hierarchically organized data
EP2237269B1 (de) * 2009-04-01 2013-02-20 Motorola Mobility LLC Vorrichtung und Verfahren zur Verarbeitung eines enkodierten Audiodatensignals
FR2947944A1 (fr) * 2009-07-07 2011-01-14 France Telecom Codage/decodage perfectionne de signaux audionumeriques
US8538042B2 (en) 2009-08-11 2013-09-17 Dts Llc System for increasing perceived loudness of speakers
EP2306456A1 (de) * 2009-09-04 2011-04-06 Thomson Licensing Verfahren zur Decodierung eines Audiosignals mit einer Basisschicht und einer Erweiterungsschicht
CN102859583B (zh) * 2010-01-12 2014-09-10 弗劳恩霍弗实用研究促进协会 利用对数值先前脉络值的数字表示之修改的音频编码器、音频解码器、编码音频信息的方法及解码音频信息的方法
US8374858B2 (en) * 2010-03-09 2013-02-12 Dts, Inc. Scalable lossless audio codec and authoring tool
US9008811B2 (en) 2010-09-17 2015-04-14 Xiph.org Foundation Methods and systems for adaptive time-frequency resolution in digital data coding
US9210442B2 (en) 2011-01-12 2015-12-08 Google Technology Holdings LLC Efficient transform unit representation
US9380319B2 (en) 2011-02-04 2016-06-28 Google Technology Holdings LLC Implicit transform unit representation
WO2012110448A1 (en) 2011-02-14 2012-08-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for coding a portion of an audio signal using a transient detection and a quality result
TR201903388T4 (tr) 2011-02-14 2019-04-22 Fraunhofer Ges Forschung Bir ses sinyalinin parçalarının darbe konumlarının şifrelenmesi ve çözülmesi.
SG192746A1 (en) 2011-02-14 2013-09-30 Fraunhofer Ges Forschung Apparatus and method for processing a decoded audio signal in a spectral domain
AR085794A1 (es) 2011-02-14 2013-10-30 Fraunhofer Ges Forschung Prediccion lineal basada en esquema de codificacion utilizando conformacion de ruido de dominio espectral
AU2012217158B2 (en) * 2011-02-14 2014-02-27 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Information signal representation using lapped transform
WO2012122297A1 (en) 2011-03-07 2012-09-13 Xiph. Org. Methods and systems for avoiding partial collapse in multi-block audio coding
WO2012122303A1 (en) * 2011-03-07 2012-09-13 Xiph. Org Method and system for two-step spreading for tonal artifact avoidance in audio coding
WO2012122299A1 (en) 2011-03-07 2012-09-13 Xiph. Org. Bit allocation and partitioning in gain-shape vector quantization for audio coding
ES2617958T3 (es) * 2011-04-05 2017-06-20 Nippon Telegraph And Telephone Corporation Codificación de una señal acústica
US9312829B2 (en) 2012-04-12 2016-04-12 Dts Llc System for adjusting loudness of audio signals in real time
US9225310B1 (en) * 2012-11-08 2015-12-29 iZotope, Inc. Audio limiter system and method
US9544597B1 (en) * 2013-02-11 2017-01-10 Google Inc. Hybrid transform in video encoding and decoding
US9967559B1 (en) 2013-02-11 2018-05-08 Google Llc Motion vector dependent spatial transformation in video coding
US9674530B1 (en) 2013-04-30 2017-06-06 Google Inc. Hybrid transforms in video coding
US9613634B2 (en) * 2014-06-19 2017-04-04 Yang Gao Control of acoustic echo canceller adaptive filter for speech enhancement
US9565451B1 (en) 2014-10-31 2017-02-07 Google Inc. Prediction dependent transform coding
US9742780B2 (en) * 2015-02-06 2017-08-22 Microsoft Technology Licensing, Llc Audio based discovery and connection to a service controller
US9769499B2 (en) 2015-08-11 2017-09-19 Google Inc. Super-transform video coding
US10277905B2 (en) 2015-09-14 2019-04-30 Google Llc Transform selection for non-baseband signal coding
US9807423B1 (en) 2015-11-24 2017-10-31 Google Inc. Hybrid transform scheme for video coding
WO2018201113A1 (en) * 2017-04-28 2018-11-01 Dts, Inc. Audio coder window and transform implementations
US11272207B2 (en) 2017-06-12 2022-03-08 Futurewei Technologies, Inc. Selection and signaling of motion vector (MV) precisions
WO2019091576A1 (en) * 2017-11-10 2019-05-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoders, audio decoders, methods and computer programs adapting an encoding and decoding of least significant bits
US11122297B2 (en) 2019-05-03 2021-09-14 Google Llc Using border-aligned block functions for image compression

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6108625A (en) * 1997-04-02 2000-08-22 Samsung Electronics Co., Ltd. Scalable audio coding/decoding method and apparatus without overlap of information between various layers

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9512284D0 (en) * 1995-06-16 1995-08-16 Nokia Mobile Phones Ltd Speech Synthesiser
GB9703441D0 (en) 1997-02-19 1997-04-09 British Tech Group Progressive block-based coding for image compression
DE19742201C1 (de) 1997-09-24 1999-02-04 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Codieren von Audiosignalen
KR100335609B1 (ko) * 1997-11-20 2002-10-04 삼성전자 주식회사 비트율조절이가능한오디오부호화/복호화방법및장치
DE19804564A1 (de) * 1998-02-05 1999-08-12 Fraunhofer Ges Forschung Kommunikationsnetz, Verfahren zum Übertragen eines Signals, Netzverbindungseinheit und Verfahren zum Anpassen der Datenrate eines skalierten Datenstroms
US6446037B1 (en) * 1999-08-09 2002-09-03 Dolby Laboratories Licensing Corporation Scalable coding method for high quality audio
DE10007171A1 (de) 2000-02-17 2001-08-30 Siemens Ag Verfahren und Anordnung zur Codierung bzw. zur Codierung und Decodierung einer Zahlenfolge

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6108625A (en) * 1997-04-02 2000-08-22 Samsung Electronics Co., Ltd. Scalable audio coding/decoding method and apparatus without overlap of information between various layers

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
GEIGER R ET AL: "Fine grain scalable perceptual and lossless audio coding based on IntMDCT", 2003 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING (CAT. NO.03CH37404), PROCEEDINGS OF INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP'03), HONG KONG, CHINA, 6-10 APRIL 2003, 2003, Piscataway, NJ, USA, IEEE, USA, pages V - 445-8 vol.5, XP010639304, ISBN: 0-7803-7663-3 *
GEIGER R ET AL: "IntMDCT - a link between perceptual and lossless audio coding", 2002 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING. PROCEEDINGS (CAT. NO.02CH37334), PROCEEDINGS OF INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (CASSP'02), ORLANDO, FL, USA, 13-17 MAY 2002, 2002, Piscataway, NJ, USA, IEEE, USA, pages II - 1813-16 vol.2, XP002270626, ISBN: 0-7803-7402-9 *
PARK S-H ET AL: "MULTI-LAYER BIT-SLICED BIT-RATE SCALABLE AUDIO CODING", PREPRINTS OF PAPERS PRESENTED AT THE AES CONVENTION, XX, XX, vol. 103, pages 16, XP009016481 *
WEN JIN ET AL: "A scalable subband audio coding scheme for ATM environments", PROCEEDINGS IEEE SOUTHEASTCON 2001. ENGINEERING THE FUTURE. CLEMSON, SC, MARCH 30 - APRIL 1, 2001, IEEE SOUTHEASTCON, NEW YORK, NY: IEEE, US, 30 March 2001 (2001-03-30), pages 271 - 275, XP010542621, ISBN: 0-7803-6748-0 *

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CN1675683A (zh) 2005-09-28
HK1072122A1 (en) 2005-08-12
EP1502255B1 (de) 2014-11-19
CN1332373C (zh) 2007-08-15
EP1502255A2 (de) 2005-02-02
AU2003250209A8 (en) 2004-03-19
US20040184537A1 (en) 2004-09-23
JP4043476B2 (ja) 2008-02-06
AU2003250209A1 (en) 2004-03-19
US7343287B2 (en) 2008-03-11
JP2005535940A (ja) 2005-11-24
DE10236694A1 (de) 2004-02-26
WO2004021710A2 (de) 2004-03-11

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