ATE451684T1 - Effiziente kodierung digitaler audiospektraldaten unter verwendung spektraler ähnlichkeit - Google Patents

Effiziente kodierung digitaler audiospektraldaten unter verwendung spektraler ähnlichkeit

Info

Publication number
ATE451684T1
ATE451684T1 AT04779866T AT04779866T ATE451684T1 AT E451684 T1 ATE451684 T1 AT E451684T1 AT 04779866 T AT04779866 T AT 04779866T AT 04779866 T AT04779866 T AT 04779866T AT E451684 T1 ATE451684 T1 AT E451684T1
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AT
Austria
Prior art keywords
encoding
spectral
shape
spectral coefficients
spectrum
Prior art date
Application number
AT04779866T
Other languages
English (en)
Inventor
Sanjeev Mehrotra
Wei-Ge Chen
Original Assignee
Microsoft Corp
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
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Application granted granted Critical
Publication of ATE451684T1 publication Critical patent/ATE451684T1/de

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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
    • G10L19/0204—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 using subband decomposition
    • G10L19/0208—Subband vocoders
    • 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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G10L19/035—Scalar quantisation
    • 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
    • G10L19/0204—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 using subband decomposition

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)
  • Lubricants (AREA)
AT04779866T 2004-01-23 2004-07-29 Effiziente kodierung digitaler audiospektraldaten unter verwendung spektraler ähnlichkeit ATE451684T1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US53904604P 2004-01-23 2004-01-23
US10/882,801 US7460990B2 (en) 2004-01-23 2004-06-29 Efficient coding of digital media spectral data using wide-sense perceptual similarity
PCT/US2004/024935 WO2005076260A1 (en) 2004-01-23 2004-07-29 Efficient coding of digital media spectral data using wide-sense perceptual similarity

Publications (1)

Publication Number Publication Date
ATE451684T1 true ATE451684T1 (de) 2009-12-15

Family

ID=34798916

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04779866T ATE451684T1 (de) 2004-01-23 2004-07-29 Effiziente kodierung digitaler audiospektraldaten unter verwendung spektraler ähnlichkeit

Country Status (8)

Country Link
US (2) US7460990B2 (de)
EP (1) EP1730725B1 (de)
JP (4) JP4745986B2 (de)
KR (3) KR101130355B1 (de)
CN (1) CN1813286B (de)
AT (1) ATE451684T1 (de)
DE (1) DE602004024591D1 (de)
WO (1) WO2005076260A1 (de)

Families Citing this family (84)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7240001B2 (en) * 2001-12-14 2007-07-03 Microsoft Corporation Quality improvement techniques in an audio encoder
US7460993B2 (en) * 2001-12-14 2008-12-02 Microsoft Corporation Adaptive window-size selection in transform coding
US6934677B2 (en) 2001-12-14 2005-08-23 Microsoft Corporation Quantization matrices based on critical band pattern information for digital audio wherein quantization bands differ from critical bands
ES2297083T3 (es) 2002-09-04 2008-05-01 Microsoft Corporation Codificacion entropica por adaptacion de la codificacion entre modos por longitud de ejecucion y por nivel.
US7809579B2 (en) * 2003-12-19 2010-10-05 Telefonaktiebolaget Lm Ericsson (Publ) Fidelity-optimized variable frame length encoding
US7460990B2 (en) 2004-01-23 2008-12-02 Microsoft Corporation Efficient coding of digital media spectral data using wide-sense perceptual similarity
US7983835B2 (en) 2004-11-03 2011-07-19 Lagassey Paul J Modular intelligent transportation system
TWI231656B (en) * 2004-04-08 2005-04-21 Univ Nat Chiao Tung Fast bit allocation algorithm for audio coding
TWI275074B (en) * 2004-04-12 2007-03-01 Vivotek Inc Method for analyzing energy consistency to process data
US20050232497A1 (en) * 2004-04-15 2005-10-20 Microsoft Corporation High-fidelity transcoding
JP4168976B2 (ja) * 2004-05-28 2008-10-22 ソニー株式会社 オーディオ信号符号化装置及び方法
KR101283525B1 (ko) * 2004-07-14 2013-07-15 돌비 인터네셔널 에이비 오디오 채널 변환
KR100657916B1 (ko) 2004-12-01 2006-12-14 삼성전자주식회사 주파수 대역간의 유사도를 이용한 오디오 신호 처리 장치및 방법
US9626973B2 (en) * 2005-02-23 2017-04-18 Telefonaktiebolaget L M Ericsson (Publ) Adaptive bit allocation for multi-channel audio encoding
WO2006091139A1 (en) * 2005-02-23 2006-08-31 Telefonaktiebolaget Lm Ericsson (Publ) Adaptive bit allocation for multi-channel audio encoding
US7562021B2 (en) * 2005-07-15 2009-07-14 Microsoft Corporation Modification of codewords in dictionary used for efficient coding of digital media spectral data
US7546240B2 (en) * 2005-07-15 2009-06-09 Microsoft Corporation Coding with improved time resolution for selected segments via adaptive block transformation of a group of samples from a subband decomposition
US7630882B2 (en) * 2005-07-15 2009-12-08 Microsoft Corporation Frequency segmentation to obtain bands for efficient coding of digital media
KR100803205B1 (ko) * 2005-07-15 2008-02-14 삼성전자주식회사 저비트율 오디오 신호 부호화/복호화 방법 및 장치
US7953605B2 (en) * 2005-10-07 2011-05-31 Deepen Sinha Method and apparatus for audio encoding and decoding using wideband psychoacoustic modeling and bandwidth extension
US20070118361A1 (en) * 2005-10-07 2007-05-24 Deepen Sinha Window apparatus and method
US8190425B2 (en) * 2006-01-20 2012-05-29 Microsoft Corporation Complex cross-correlation parameters for multi-channel audio
US7953604B2 (en) * 2006-01-20 2011-05-31 Microsoft Corporation Shape and scale parameters for extended-band frequency coding
US7831434B2 (en) * 2006-01-20 2010-11-09 Microsoft Corporation Complex-transform channel coding with extended-band frequency coding
US7966175B2 (en) 2006-10-18 2011-06-21 Polycom, Inc. Fast lattice vector quantization
US7953595B2 (en) 2006-10-18 2011-05-31 Polycom, Inc. Dual-transform coding of audio signals
US20080243518A1 (en) * 2006-11-16 2008-10-02 Alexey Oraevsky System And Method For Compressing And Reconstructing Audio Files
KR101412255B1 (ko) * 2006-12-13 2014-08-14 파나소닉 인텔렉츄얼 프로퍼티 코포레이션 오브 아메리카 부호화 장치, 복호 장치 및 이들의 방법
JPWO2008072733A1 (ja) * 2006-12-15 2010-04-02 パナソニック株式会社 符号化装置および符号化方法
JP4871894B2 (ja) 2007-03-02 2012-02-08 パナソニック株式会社 符号化装置、復号装置、符号化方法および復号方法
US7761290B2 (en) 2007-06-15 2010-07-20 Microsoft Corporation Flexible frequency and time partitioning in perceptual transform coding of audio
US8046214B2 (en) 2007-06-22 2011-10-25 Microsoft Corporation Low complexity decoder for complex transform coding of multi-channel sound
US7885819B2 (en) 2007-06-29 2011-02-08 Microsoft Corporation Bitstream syntax for multi-process audio decoding
KR101403340B1 (ko) * 2007-08-02 2014-06-09 삼성전자주식회사 변환 부호화 방법 및 장치
US8116936B2 (en) * 2007-09-25 2012-02-14 General Electric Company Method and system for efficient data collection and storage
US8249883B2 (en) * 2007-10-26 2012-08-21 Microsoft Corporation Channel extension coding for multi-channel source
US8457958B2 (en) * 2007-11-09 2013-06-04 Microsoft Corporation Audio transcoder using encoder-generated side information to transcode to target bit-rate
US8688441B2 (en) * 2007-11-29 2014-04-01 Motorola Mobility Llc Method and apparatus to facilitate provision and use of an energy value to determine a spectral envelope shape for out-of-signal bandwidth content
US8433582B2 (en) * 2008-02-01 2013-04-30 Motorola Mobility Llc Method and apparatus for estimating high-band energy in a bandwidth extension system
US20090201983A1 (en) * 2008-02-07 2009-08-13 Motorola, Inc. Method and apparatus for estimating high-band energy in a bandwidth extension system
US8190440B2 (en) * 2008-02-29 2012-05-29 Broadcom Corporation Sub-band codec with native voice activity detection
JPWO2009125588A1 (ja) * 2008-04-09 2011-07-28 パナソニック株式会社 符号化装置および符号化方法
US8179974B2 (en) 2008-05-02 2012-05-15 Microsoft Corporation Multi-level representation of reordered transform coefficients
US8447591B2 (en) * 2008-05-30 2013-05-21 Microsoft Corporation Factorization of overlapping tranforms into two block transforms
JP5224219B2 (ja) * 2008-06-26 2013-07-03 独立行政法人科学技術振興機構 オーディオ信号圧縮装置、オーディオ信号圧縮方法、オーディオ信号復号装置及びオーディオ信号復号方法
ES2796552T3 (es) * 2008-07-11 2020-11-27 Fraunhofer Ges Forschung Sintetizador de señales de audio y codificador de señales de audio
US8463412B2 (en) * 2008-08-21 2013-06-11 Motorola Mobility Llc Method and apparatus to facilitate determining signal bounding frequencies
US8406307B2 (en) 2008-08-22 2013-03-26 Microsoft Corporation Entropy coding/decoding of hierarchically organized data
US8311115B2 (en) * 2009-01-29 2012-11-13 Microsoft Corporation Video encoding using previously calculated motion information
US8396114B2 (en) * 2009-01-29 2013-03-12 Microsoft Corporation Multiple bit rate video encoding using variable bit rate and dynamic resolution for adaptive video streaming
US8463599B2 (en) * 2009-02-04 2013-06-11 Motorola Mobility Llc Bandwidth extension method and apparatus for a modified discrete cosine transform audio coder
US20100225473A1 (en) * 2009-03-05 2010-09-09 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Postural information system and method
CN102246229B (zh) * 2009-04-03 2013-03-27 华为技术有限公司 频域脉冲解码的预测方法和预测装置及解码器
US8270473B2 (en) * 2009-06-12 2012-09-18 Microsoft Corporation Motion based dynamic resolution multiple bit rate video encoding
US8700410B2 (en) * 2009-06-18 2014-04-15 Texas Instruments Incorporated Method and system for lossless value-location encoding
KR20110001130A (ko) * 2009-06-29 2011-01-06 삼성전자주식회사 가중 선형 예측 변환을 이용한 오디오 신호 부호화 및 복호화 장치 및 그 방법
EP2500901B1 (de) * 2009-11-12 2018-09-19 III Holdings 12, LLC Audiokodiervorrichtung und audiokodierverfahren
JP5746974B2 (ja) * 2009-11-13 2015-07-08 パナソニック インテレクチュアル プロパティ コーポレーション オブアメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ 符号化装置、復号装置およびこれらの方法
JP5507971B2 (ja) 2009-11-16 2014-05-28 アイシン精機株式会社 衝撃吸収具及び車両用バンパ装置
US8705616B2 (en) 2010-06-11 2014-04-22 Microsoft Corporation Parallel multiple bitrate video encoding to reduce latency and dependences between groups of pictures
CN102959873A (zh) * 2010-07-05 2013-03-06 日本电信电话株式会社 编码方法、解码方法、装置、程序及记录介质
CN104347079B (zh) * 2010-08-24 2017-11-28 Lg电子株式会社 处理音频信号的方法和设备
CA3191597C (en) 2010-09-16 2024-01-02 Dolby International Ab Cross product enhanced subband block based harmonic transposition
US8924200B2 (en) * 2010-10-15 2014-12-30 Motorola Mobility Llc Audio signal bandwidth extension in CELP-based speech coder
AU2011358654B2 (en) * 2011-02-09 2017-01-05 Telefonaktiebolaget L M Ericsson (Publ) Efficient encoding/decoding of audio signals
TWI606441B (zh) * 2011-05-13 2017-11-21 三星電子股份有限公司 解碼裝置
US9591318B2 (en) * 2011-09-16 2017-03-07 Microsoft Technology Licensing, Llc Multi-layer encoding and decoding
PL397008A1 (pl) * 2011-11-17 2013-05-27 Politechnika Poznanska Sposób kodowania obrazu
US11089343B2 (en) 2012-01-11 2021-08-10 Microsoft Technology Licensing, Llc Capability advertisement, configuration and control for video coding and decoding
WO2013147709A1 (en) * 2012-03-28 2013-10-03 Agency For Science, Technology And Research Method for transmitting a digital signal, method for receiving a digital signal, transmission arrangement and communication device
EP2830055A1 (de) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Kontextbasierte Entropiecodierung von Probenwerten einer spektralen Hüllkurve
EP2830061A1 (de) 2013-07-22 2015-01-28 Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zur Codierung und Decodierung eines codierten Audiosignals unter Verwendung von zeitlicher Rausch-/Patch-Formung
TWI579831B (zh) 2013-09-12 2017-04-21 杜比國際公司 用於參數量化的方法、用於量化的參數之解量化方法及其電腦可讀取的媒體、音頻編碼器、音頻解碼器及音頻系統
WO2016142002A1 (en) 2015-03-09 2016-09-15 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder, audio decoder, method for encoding an audio signal and method for decoding an encoded audio signal
GB2545434B (en) * 2015-12-15 2020-01-08 Sonic Data Ltd Improved method, apparatus and system for embedding data within a data stream
US10146500B2 (en) 2016-08-31 2018-12-04 Dts, Inc. Transform-based audio codec and method with subband energy smoothing
EP3563813B1 (de) 2016-12-27 2022-04-20 Mitsui Chemicals, Inc. Mundstück
US10354667B2 (en) 2017-03-22 2019-07-16 Immersion Networks, Inc. System and method for processing audio data
EP3382700A1 (de) 2017-03-31 2018-10-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und verfahren zur nachbearbeitung eines audiosignals mit transienten-positionserkennung
EP3382701A1 (de) * 2017-03-31 2018-10-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und verfahren zur nachbearbeitung eines audiosignals mit prädiktionsbasierter formung
CN111656441B (zh) 2017-11-17 2023-10-03 弗劳恩霍夫应用研究促进协会 编码或解码定向音频编码参数的装置和方法
US10950251B2 (en) 2018-03-05 2021-03-16 Dts, Inc. Coding of harmonic signals in transform-based audio codecs
US10586546B2 (en) 2018-04-26 2020-03-10 Qualcomm Incorporated Inversely enumerated pyramid vector quantizers for efficient rate adaptation in audio coding
US10573331B2 (en) * 2018-05-01 2020-02-25 Qualcomm Incorporated Cooperative pyramid vector quantizers for scalable audio coding

Family Cites Families (240)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3240380A (en) * 1957-08-07 1966-03-15 Mueller Co Line stopping and valve inserting apparatus and method
US3684838A (en) 1968-06-26 1972-08-15 Kahn Res Lab Single channel audio signal transmission system
US4251688A (en) 1979-01-15 1981-02-17 Ana Maria Furner Audio-digital processing system for demultiplexing stereophonic/quadriphonic input audio signals into 4-to-72 output audio signals
EP0064119B1 (de) 1981-04-30 1985-08-28 International Business Machines Corporation Sprachkodierungsverfahren und Einrichtung zur Durchführung des Verfahrens
JPS5921039B2 (ja) 1981-11-04 1984-05-17 日本電信電話株式会社 適応予測符号化方式
CA1253255A (en) 1983-05-16 1989-04-25 Nec Corporation System for simultaneously coding and decoding a plurality of signals
GB8421498D0 (en) 1984-08-24 1984-09-26 British Telecomm Frequency domain speech coding
US4609686A (en) 1985-04-19 1986-09-02 The Standard Oil Company 100 percent solids epoxy, nitrile coating compositions and method of making same
US4776014A (en) 1986-09-02 1988-10-04 General Electric Company Method for pitch-aligned high-frequency regeneration in RELP vocoders
GB2205465B (en) 1987-05-13 1991-09-04 Ricoh Kk Image transmission system
US4922537A (en) 1987-06-02 1990-05-01 Frederiksen & Shu Laboratories, Inc. Method and apparatus employing audio frequency offset extraction and floating-point conversion for digitally encoding and decoding high-fidelity audio signals
US4907276A (en) 1988-04-05 1990-03-06 The Dsp Group (Israel) Ltd. Fast search method for vector quantizer communication and pattern recognition systems
US5297236A (en) 1989-01-27 1994-03-22 Dolby Laboratories Licensing Corporation Low computational-complexity digital filter bank for encoder, decoder, and encoder/decoder
US5357594A (en) 1989-01-27 1994-10-18 Dolby Laboratories Licensing Corporation Encoding and decoding using specially designed pairs of analysis and synthesis windows
JP2811369B2 (ja) 1989-01-27 1998-10-15 ドルビー・ラボラトリーズ・ライセンシング・コーポレーション 高品質オーディオ用短時間遅延変換コーダ、デコーダ、及びエンコーダ・デコーダ
US5479562A (en) 1989-01-27 1995-12-26 Dolby Laboratories Licensing Corporation Method and apparatus for encoding and decoding audio information
US5752225A (en) 1989-01-27 1998-05-12 Dolby Laboratories Licensing Corporation Method and apparatus for split-band encoding and split-band decoding of audio information using adaptive bit allocation to adjacent subbands
US5222189A (en) 1989-01-27 1993-06-22 Dolby Laboratories Licensing Corporation Low time-delay transform coder, decoder, and encoder/decoder for high-quality audio
US5142656A (en) 1989-01-27 1992-08-25 Dolby Laboratories Licensing Corporation Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
EP0386418B1 (de) 1989-03-06 1994-12-21 Robert Bosch Gmbh Verfahren zur Datenreduktion bei digitalen Tonsignalen und zur genäherten Rückgewinnung der digitalen Tonsignale
US5539829A (en) * 1989-06-02 1996-07-23 U.S. Philips Corporation Subband coded digital transmission system using some composite signals
US5115240A (en) 1989-09-26 1992-05-19 Sony Corporation Method and apparatus for encoding voice signals divided into a plurality of frequency bands
JP2921879B2 (ja) 1989-09-29 1999-07-19 株式会社東芝 画像データ処理装置
US5185800A (en) 1989-10-13 1993-02-09 Centre National D'etudes Des Telecommunications Bit allocation device for transformed digital audio broadcasting signals with adaptive quantization based on psychoauditive criterion
US5040217A (en) 1989-10-18 1991-08-13 At&T Bell Laboratories Perceptual coding of audio signals
JP2560873B2 (ja) 1990-02-28 1996-12-04 日本ビクター株式会社 直交変換符号化復号化方法
CN1062963C (zh) 1990-04-12 2001-03-07 多尔拜实验特许公司 用于产生高质量声音信号的解码器和编码器
US5388181A (en) 1990-05-29 1995-02-07 Anderson; David J. Digital audio compression system
JP3033156B2 (ja) 1990-08-24 2000-04-17 ソニー株式会社 ディジタル信号符号化装置
DE69131779T2 (de) 1990-12-21 2004-09-09 British Telecommunications P.L.C. Sprachcodierung
US5274740A (en) 1991-01-08 1993-12-28 Dolby Laboratories Licensing Corporation Decoder for variable number of channel presentation of multidimensional sound fields
SG49883A1 (en) 1991-01-08 1998-06-15 Dolby Lab Licensing Corp Encoder/decoder for multidimensional sound fields
US5559900A (en) 1991-03-12 1996-09-24 Lucent Technologies Inc. Compression of signals for perceptual quality by selecting frequency bands having relatively high energy
US5870497A (en) 1991-03-15 1999-02-09 C-Cube Microsystems Decoder for compressed video signals
AU1996292A (en) 1991-05-17 1992-12-30 Analytic Sciences Corporation, The Continuous-tone image compression
KR100268623B1 (ko) * 1991-06-28 2000-10-16 이데이 노부유끼 압축 데이타 기록 재생 장치 및 신호 처리 방법
US5487086A (en) 1991-09-13 1996-01-23 Comsat Corporation Transform vector quantization for adaptive predictive coding
JP3141450B2 (ja) 1991-09-30 2001-03-05 ソニー株式会社 オーディオ信号処理方法
EP0551705A3 (en) 1992-01-15 1993-08-18 Ericsson Ge Mobile Communications Inc. Method for subbandcoding using synthetic filler signals for non transmitted subbands
US5369724A (en) 1992-01-17 1994-11-29 Massachusetts Institute Of Technology Method and apparatus for encoding, decoding and compression of audio-type data using reference coefficients located within a band of coefficients
EP0559348A3 (de) 1992-03-02 1993-11-03 AT&T Corp. Rateurregelschleifenprozessor für einen wahrnehmungsgebundenen Koder/Dekoder
US5285498A (en) 1992-03-02 1994-02-08 At&T Bell Laboratories Method and apparatus for coding audio signals based on perceptual model
FR2688371B1 (fr) 1992-03-03 1997-05-23 France Telecom Procede et systeme de spatialisation artificielle de signaux audio-numeriques.
DE4209544A1 (de) 1992-03-24 1993-09-30 Inst Rundfunktechnik Gmbh Verfahren zum Übertragen oder Speichern digitalisierter, mehrkanaliger Tonsignale
US5295203A (en) 1992-03-26 1994-03-15 General Instrument Corporation Method and apparatus for vector coding of video transform coefficients
JP2693893B2 (ja) 1992-03-30 1997-12-24 松下電器産業株式会社 ステレオ音声符号化方法
JP2779886B2 (ja) * 1992-10-05 1998-07-23 日本電信電話株式会社 広帯域音声信号復元方法
JP3343965B2 (ja) 1992-10-31 2002-11-11 ソニー株式会社 音声符号化方法及び復号化方法
JP3343962B2 (ja) 1992-11-11 2002-11-11 ソニー株式会社 高能率符号化方法及び装置
US5455888A (en) 1992-12-04 1995-10-03 Northern Telecom Limited Speech bandwidth extension method and apparatus
JP3186307B2 (ja) * 1993-03-09 2001-07-11 ソニー株式会社 圧縮データ記録装置及び方法
DE69428939T2 (de) 1993-06-22 2002-04-04 Deutsche Thomson-Brandt Gmbh Verfahren zur Erhaltung einer Mehrkanaldekodiermatrix
TW272341B (de) 1993-07-16 1996-03-11 Sony Co Ltd
US5632003A (en) 1993-07-16 1997-05-20 Dolby Laboratories Licensing Corporation Computationally efficient adaptive bit allocation for coding method and apparatus
US5623577A (en) 1993-07-16 1997-04-22 Dolby Laboratories Licensing Corporation Computationally efficient adaptive bit allocation for encoding method and apparatus with allowance for decoder spectral distortions
US5581653A (en) * 1993-08-31 1996-12-03 Dolby Laboratories Licensing Corporation Low bit-rate high-resolution spectral envelope coding for audio encoder and decoder
US5737720A (en) 1993-10-26 1998-04-07 Sony Corporation Low bit rate multichannel audio coding methods and apparatus using non-linear adaptive bit allocation
US5684920A (en) 1994-03-17 1997-11-04 Nippon Telegraph And Telephone Acoustic signal transform coding method and decoding method having a high efficiency envelope flattening method therein
DE4409368A1 (de) 1994-03-18 1995-09-21 Fraunhofer Ges Forschung Verfahren zum Codieren mehrerer Audiosignale
JP3277677B2 (ja) 1994-04-01 2002-04-22 ソニー株式会社 信号符号化方法及び装置、信号記録媒体、信号伝送方法、並びに信号復号化方法及び装置
US5574824A (en) 1994-04-11 1996-11-12 The United States Of America As Represented By The Secretary Of The Air Force Analysis/synthesis-based microphone array speech enhancer with variable signal distortion
JP3362534B2 (ja) * 1994-11-18 2003-01-07 ヤマハ株式会社 ベクトル量子化による符号化復号方式
US5635930A (en) 1994-10-03 1997-06-03 Sony Corporation Information encoding method and apparatus, information decoding method and apparatus and recording medium
EP0738441B1 (de) 1994-11-04 2002-03-13 Koninklijke Philips Electronics N.V. Kodierung und dekodierung eines breitbandigen digitalen informationssignals
US5654702A (en) 1994-12-16 1997-08-05 National Semiconductor Corp. Syntax-based arithmetic coding for low bit rate videophone
US5629780A (en) 1994-12-19 1997-05-13 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Image data compression having minimum perceptual error
JP2956548B2 (ja) * 1995-10-05 1999-10-04 松下電器産業株式会社 音声帯域拡大装置
JP3189614B2 (ja) * 1995-03-13 2001-07-16 松下電器産業株式会社 音声帯域拡大装置
WO1996032710A1 (en) 1995-04-10 1996-10-17 Corporate Computer Systems, Inc. System for compression and decompression of audio signals for digital transmission
US6940840B2 (en) 1995-06-30 2005-09-06 Interdigital Technology Corporation Apparatus for adaptive reverse power control for spread-spectrum communications
ZA965340B (en) 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) communication system
US5790759A (en) 1995-09-19 1998-08-04 Lucent Technologies Inc. Perceptual noise masking measure based on synthesis filter frequency response
US5960390A (en) 1995-10-05 1999-09-28 Sony Corporation Coding method for using multi channel audio signals
DE19549621B4 (de) * 1995-10-06 2004-07-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung zum Codieren von Audiosignalen
US5819215A (en) * 1995-10-13 1998-10-06 Dobson; Kurt Method and apparatus for wavelet based data compression having adaptive bit rate control for compression of digital audio or other sensory data
US5777678A (en) 1995-10-26 1998-07-07 Sony Corporation Predictive sub-band video coding and decoding using motion compensation
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
US5686964A (en) 1995-12-04 1997-11-11 Tabatabai; Ali Bit rate control mechanism for digital image and video data compression
EP0880235A1 (de) 1996-02-08 1998-11-25 Matsushita Electric Industrial Co., Ltd. Breitbandaudiosignalkodierer, breitbandaudiosignaldekodierer, breitbandaudiosignalkodierer/-dekodierer, sowie breitbandaudiosignalaufnahmemedium
US5852806A (en) 1996-03-19 1998-12-22 Lucent Technologies Inc. Switched filterbank for use in audio signal coding
US5682152A (en) 1996-03-19 1997-10-28 Johnson-Grace Company Data compression using adaptive bit allocation and hybrid lossless entropy encoding
US5812971A (en) 1996-03-22 1998-09-22 Lucent Technologies Inc. Enhanced joint stereo coding method using temporal envelope shaping
SE506341C2 (sv) 1996-04-10 1997-12-08 Ericsson Telefon Ab L M Metod och anordning för rekonstruktion av en mottagen talsignal
US5822370A (en) 1996-04-16 1998-10-13 Aura Systems, Inc. Compression/decompression for preservation of high fidelity speech quality at low bandwidth
DE19628293C1 (de) * 1996-07-12 1997-12-11 Fraunhofer Ges Forschung Codieren und Decodieren von Audiosignalen unter Verwendung von Intensity-Stereo und Prädiktion
DE19628292B4 (de) * 1996-07-12 2007-08-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zum Codieren und Decodieren von Stereoaudiospektralwerten
US5870480A (en) 1996-07-19 1999-02-09 Lexicon Multichannel active matrix encoder and decoder with maximum lateral separation
US6697491B1 (en) 1996-07-19 2004-02-24 Harman International Industries, Incorporated 5-2-5 matrix encoder and decoder system
US5969750A (en) 1996-09-04 1999-10-19 Winbcnd Electronics Corporation Moving picture camera with universal serial bus interface
US5745275A (en) 1996-10-15 1998-04-28 Lucent Technologies Inc. Multi-channel stabilization of a multi-channel transmitter through correlation feedback
SG54379A1 (en) 1996-10-24 1998-11-16 Sgs Thomson Microelectronics A Audio decoder with an adaptive frequency domain downmixer
US5886276A (en) 1997-01-16 1999-03-23 The Board Of Trustees Of The Leland Stanford Junior University System and method for multiresolution scalable audio signal encoding
FI970266A (fi) 1997-01-22 1998-07-23 Nokia Telecommunications Oy Menetelmä solukkoradiojärjestelmän ohjauskanavien kantaman pidentämiseksi ja solukkoradiojärjestelmä
CN1145363C (zh) 1997-02-08 2004-04-07 松下电器产业株式会社 静画和动画编码的量化矩阵
US20010017941A1 (en) 1997-03-14 2001-08-30 Navin Chaddha Method and apparatus for table-based compression with embedded coding
KR100265112B1 (ko) 1997-03-31 2000-10-02 윤종용 디브이디 디스크와 디브이디 디스크를 재생하는 장치 및 방법
US6064954A (en) 1997-04-03 2000-05-16 International Business Machines Corp. Digital audio signal coding
EP0924962B1 (de) 1997-04-10 2012-12-12 Sony Corporation Kodierungsverfahren und vorrichtung, dekodierungsverfahren und vorrichtung, und aufzeichnungsmedium
SE512719C2 (sv) * 1997-06-10 2000-05-02 Lars Gustaf Liljeryd En metod och anordning för reduktion av dataflöde baserad på harmonisk bandbreddsexpansion
DE19730130C2 (de) 1997-07-14 2002-02-28 Fraunhofer Ges Forschung Verfahren zum Codieren eines Audiosignals
DE19730129C2 (de) 1997-07-14 2002-03-07 Fraunhofer Ges Forschung Verfahren zum Signalisieren einer Rauschsubstitution beim Codieren eines Audiosignals
US5890125A (en) 1997-07-16 1999-03-30 Dolby Laboratories Licensing Corporation Method and apparatus for encoding and decoding multiple audio channels at low bit rates using adaptive selection of encoding method
WO1999014983A1 (en) 1997-09-16 1999-03-25 Lake Dsp Pty. Limited Utilisation of filtering effects in stereo headphone devices to enhance spatialization of source around a listener
JPH11122120A (ja) 1997-10-17 1999-04-30 Sony Corp 符号化方法及び装置、並びに復号化方法及び装置
US6959220B1 (en) * 1997-11-07 2005-10-25 Microsoft Corporation Digital audio signal filtering mechanism and method
US6253185B1 (en) 1998-02-25 2001-06-26 Lucent Technologies Inc. Multiple description transform coding of audio using optimal transforms of arbitrary dimension
US6249614B1 (en) 1998-03-06 2001-06-19 Alaris, Inc. Video compression and decompression using dynamic quantization and/or encoding
US6353807B1 (en) 1998-05-15 2002-03-05 Sony Corporation Information coding method and apparatus, code transform method and apparatus, code transform control method and apparatus, information recording method and apparatus, and program providing medium
US6029126A (en) * 1998-06-30 2000-02-22 Microsoft Corporation Scalable audio coder and decoder
US6115689A (en) 1998-05-27 2000-09-05 Microsoft Corporation Scalable audio coder and decoder
JP3998330B2 (ja) 1998-06-08 2007-10-24 沖電気工業株式会社 符号化装置
US6266003B1 (en) 1998-08-28 2001-07-24 Sigma Audio Research Limited Method and apparatus for signal processing for time-scale and/or pitch modification of audio signals
DE19840835C2 (de) 1998-09-07 2003-01-09 Fraunhofer Ges Forschung Vorrichtung und Verfahren zum Entropiecodieren von Informationswörtern und Vorrichtung und Verfahren zum Decodieren von Entropie-codierten Informationswörtern
US7272556B1 (en) 1998-09-23 2007-09-18 Lucent Technologies Inc. Scalable and embedded codec for speech and audio signals
SE519552C2 (sv) * 1998-09-30 2003-03-11 Ericsson Telefon Ab L M Flerkanalig signalkodning och -avkodning
CA2252170A1 (en) * 1998-10-27 2000-04-27 Bruno Bessette A method and device for high quality coding of wideband speech and audio signals
SE9903553D0 (sv) 1999-01-27 1999-10-01 Lars Liljeryd Enhancing percepptual performance of SBR and related coding methods by adaptive noise addition (ANA) and noise substitution limiting (NSL)
US6498865B1 (en) 1999-02-11 2002-12-24 Packetvideo Corp,. Method and device for control and compatible delivery of digitally compressed visual data in a heterogeneous communication network
US6778709B1 (en) 1999-03-12 2004-08-17 Hewlett-Packard Development Company, L.P. Embedded block coding with optimized truncation
EP1173925B1 (de) 1999-04-07 2003-12-03 Dolby Laboratories Licensing Corporation Matrizierung für die verlustfreie kodierung und dekodierung von mehrkanaligen audiosignalen
US6952774B1 (en) 1999-05-22 2005-10-04 Microsoft Corporation Audio watermarking with dual watermarks
US6370502B1 (en) 1999-05-27 2002-04-09 America Online, Inc. Method and system for reduction of quantization-induced block-discontinuities and general purpose audio codec
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
US6658162B1 (en) 1999-06-26 2003-12-02 Sharp Laboratories Of America Image coding method using visual optimization
US6604070B1 (en) 1999-09-22 2003-08-05 Conexant Systems, Inc. System of encoding and decoding speech signals
US6418405B1 (en) 1999-09-30 2002-07-09 Motorola, Inc. Method and apparatus for dynamic segmentation of a low bit rate digital voice message
US6496798B1 (en) 1999-09-30 2002-12-17 Motorola, Inc. Method and apparatus for encoding and decoding frames of voice model parameters into a low bit rate digital voice message
US6836761B1 (en) 1999-10-21 2004-12-28 Yamaha Corporation Voice converter for assimilation by frame synthesis with temporal alignment
FI19992351A (fi) 1999-10-29 2001-04-30 Nokia Mobile Phones Ltd Puheentunnistus
WO2001033726A1 (en) 1999-10-30 2001-05-10 Stmicroelectronics Asia Pacific Pte Ltd. Channel coupling for an ac-3 encoder
US6738074B2 (en) 1999-12-29 2004-05-18 Texas Instruments Incorporated Image compression system and method
US6499010B1 (en) 2000-01-04 2002-12-24 Agere Systems Inc. Perceptual audio coder bit allocation scheme providing improved perceptual quality consistency
US6704711B2 (en) 2000-01-28 2004-03-09 Telefonaktiebolaget Lm Ericsson (Publ) System and method for modifying speech signals
WO2001059946A1 (en) 2000-02-10 2001-08-16 Telogy Networks, Inc. A generalized precoder for the upstream voiceband modem channel
JP3538122B2 (ja) * 2000-06-14 2004-06-14 株式会社ケンウッド 周波数補間装置、周波数補間方法及び記録媒体
US6836739B2 (en) 2000-06-14 2004-12-28 Kabushiki Kaisha Kenwood Frequency interpolating device and frequency interpolating method
US6601032B1 (en) 2000-06-14 2003-07-29 Intervideo, Inc. Fast code length search method for MPEG audio encoding
JP3576942B2 (ja) 2000-08-29 2004-10-13 株式会社ケンウッド 周波数補間システム、周波数補間装置、周波数補間方法及び記録媒体
ATE387044T1 (de) 2000-07-07 2008-03-15 Nokia Siemens Networks Oy Verfahren und vorrichtung für die perzeptuelle tonkodierung von einem mehrkanal tonsignal mit verwendung der kaskadierten diskreten cosinustransformation oder der modifizierten diskreten cosinustransformation
US6771723B1 (en) 2000-07-14 2004-08-03 Dennis W. Davis Normalized parametric adaptive matched filter receiver
JP3576936B2 (ja) * 2000-07-21 2004-10-13 株式会社ケンウッド 周波数補間装置、周波数補間方法及び記録媒体
DE10041512B4 (de) 2000-08-24 2005-05-04 Infineon Technologies Ag Verfahren und Vorrichtung zur künstlichen Erweiterung der Bandbreite von Sprachsignalen
US6760698B2 (en) * 2000-09-15 2004-07-06 Mindspeed Technologies Inc. System for coding speech information using an adaptive codebook with enhanced variable resolution scheme
US7003467B1 (en) 2000-10-06 2006-02-21 Digital Theater Systems, Inc. Method of decoding two-channel matrix encoded audio to reconstruct multichannel audio
JP3881836B2 (ja) * 2000-10-24 2007-02-14 株式会社ケンウッド 周波数補間装置、周波数補間方法及び記録媒体
SE0004187D0 (sv) 2000-11-15 2000-11-15 Coding Technologies Sweden Ab Enhancing the performance of coding systems that use high frequency reconstruction methods
US6463408B1 (en) 2000-11-22 2002-10-08 Ericsson, Inc. Systems and methods for improving power spectral estimation of speech signals
US7177808B2 (en) 2000-11-29 2007-02-13 The United States Of America As Represented By The Secretary Of The Air Force Method for improving speaker identification by determining usable speech
JP3887531B2 (ja) * 2000-12-07 2007-02-28 株式会社ケンウッド 信号補間装置、信号補間方法及び記録媒体
KR100433516B1 (ko) 2000-12-08 2004-05-31 삼성전자주식회사 트랜스코딩 방법
WO2002052896A2 (en) 2000-12-22 2002-07-04 Koninklijke Philips Electronics N.V. Multi-channel audio converter
US7062445B2 (en) 2001-01-26 2006-06-13 Microsoft Corporation Quantization loop with heuristic approach
JP3468464B2 (ja) 2001-02-01 2003-11-17 理化学研究所 形状と物性を統合したボリュームデータ生成方法
EP1231793A1 (de) 2001-02-09 2002-08-14 STMicroelectronics S.r.l. Verfahren, System und Rechnerprogram zur Abänderung der Syntax, der Auflösung und der Datenrate von MPEG Datenströmen
GB0103245D0 (en) 2001-02-09 2001-03-28 Radioscape Ltd Method of inserting additional data into a compressed signal
GB0108080D0 (en) 2001-03-30 2001-05-23 Univ Bath Audio compression
SE522553C2 (sv) 2001-04-23 2004-02-17 Ericsson Telefon Ab L M Bandbreddsutsträckning av akustiska signaler
MXPA03010237A (es) 2001-05-10 2004-03-16 Dolby Lab Licensing Corp Mejoramiento del funcionamiento de transitorios en sistemas de codificacion de audio de baja tasa de transferencia de bitios mediante la reduccion del pre-ruido.
JP4506039B2 (ja) 2001-06-15 2010-07-21 ソニー株式会社 符号化装置及び方法、復号装置及び方法、並びに符号化プログラム及び復号プログラム
CN1235192C (zh) 2001-06-28 2006-01-04 皇家菲利浦电子有限公司 传输系统以及用于接收窄带音频信号的接收机和方法
US7400651B2 (en) 2001-06-29 2008-07-15 Kabushiki Kaisha Kenwood Device and method for interpolating frequency components of signal
JP3984468B2 (ja) 2001-12-14 2007-10-03 松下電器産業株式会社 符号化装置、復号化装置及び符号化方法
JP3926726B2 (ja) * 2001-11-14 2007-06-06 松下電器産業株式会社 符号化装置および復号化装置
DE60214027T2 (de) * 2001-11-14 2007-02-15 Matsushita Electric Industrial Co., Ltd., Kadoma Kodiervorrichtung und dekodiervorrichtung
US20050004791A1 (en) 2001-11-23 2005-01-06 Van De Kerkhof Leon Maria Perceptual noise substitution
US6934677B2 (en) * 2001-12-14 2005-08-23 Microsoft Corporation Quantization matrices based on critical band pattern information for digital audio wherein quantization bands differ from critical bands
US7460993B2 (en) * 2001-12-14 2008-12-02 Microsoft Corporation Adaptive window-size selection in transform coding
US7146313B2 (en) * 2001-12-14 2006-12-05 Microsoft Corporation Techniques for measurement of perceptual audio quality
US7027982B2 (en) * 2001-12-14 2006-04-11 Microsoft Corporation Quality and rate control strategy for digital audio
US7240001B2 (en) * 2001-12-14 2007-07-03 Microsoft Corporation Quality improvement techniques in an audio encoder
JP4272897B2 (ja) 2002-01-30 2009-06-03 パナソニック株式会社 符号化装置、復号化装置およびその方法
US7110941B2 (en) 2002-03-28 2006-09-19 Microsoft Corporation System and method for embedded audio coding with implicit auditory masking
US7310598B1 (en) 2002-04-12 2007-12-18 University Of Central Florida Research Foundation, Inc. Energy based split vector quantizer employing signal representation in multiple transform domains
US7158539B2 (en) 2002-04-16 2007-01-02 Microsoft Corporation Error resilient windows media audio coding
JP2003316394A (ja) 2002-04-23 2003-11-07 Nec Corp 音声復号システム、及び、音声復号方法、並びに、音声復号プログラム
US7447631B2 (en) * 2002-06-17 2008-11-04 Dolby Laboratories Licensing Corporation Audio coding system using spectral hole filling
US7072726B2 (en) * 2002-06-19 2006-07-04 Microsoft Corporation Converting M channels of digital audio data into N channels of digital audio data
US7308232B2 (en) 2002-06-21 2007-12-11 Lucent Technologies Inc. Method and apparatus for estimating a channel based on channel statistics
AU2003244932A1 (en) 2002-07-12 2004-02-02 Koninklijke Philips Electronics N.V. Audio coding
US7043423B2 (en) 2002-07-16 2006-05-09 Dolby Laboratories Licensing Corporation Low bit-rate audio coding systems and methods that use expanding quantizers with arithmetic coding
EP1523863A1 (de) 2002-07-16 2005-04-20 Koninklijke Philips Electronics N.V. Audio-kodierung
CA2464408C (en) 2002-08-01 2012-02-21 Matsushita Electric Industrial Co., Ltd. Audio decoding apparatus and method for band expansion with aliasing suppression
US7146315B2 (en) 2002-08-30 2006-12-05 Siemens Corporate Research, Inc. Multichannel voice detection in adverse environments
US7502743B2 (en) 2002-09-04 2009-03-10 Microsoft Corporation Multi-channel audio encoding and decoding with multi-channel transform selection
US7299190B2 (en) 2002-09-04 2007-11-20 Microsoft Corporation Quantization and inverse quantization for audio
EP1543307B1 (de) 2002-09-19 2006-02-22 Matsushita Electric Industrial Co., Ltd. Audiodecodierungsvorrichtung und -verfahren
AU2003272037A1 (en) 2002-09-24 2004-04-19 Rad Data Communications A system and method for low bit-rate compression of combined speech and music
US7330812B2 (en) 2002-10-04 2008-02-12 National Research Council Of Canada Method and apparatus for transmitting an audio stream having additional payload in a hidden sub-channel
US7243064B2 (en) 2002-11-14 2007-07-10 Verizon Business Global Llc Signal processing of multi-channel data
KR100908117B1 (ko) 2002-12-16 2009-07-16 삼성전자주식회사 비트율 조절가능한 오디오 부호화 방법, 복호화 방법,부호화 장치 및 복호화 장치
JP2004198485A (ja) 2002-12-16 2004-07-15 Victor Co Of Japan Ltd 音響符号化信号復号化装置及び音響符号化信号復号化プログラム
US6965859B2 (en) 2003-02-28 2005-11-15 Xvd Corporation Method and apparatus for audio compression
SG135920A1 (en) * 2003-03-07 2007-10-29 St Microelectronics Asia Device and process for use in encoding audio data
RU2005135650A (ru) 2003-04-17 2006-03-20 Конинклейке Филипс Электроникс Н.В. (Nl) Синтез аудиосигнала
CN100546233C (zh) 2003-04-30 2009-09-30 诺基亚公司 用于支持多声道音频扩展的方法和设备
US7318035B2 (en) 2003-05-08 2008-01-08 Dolby Laboratories Licensing Corporation Audio coding systems and methods using spectral component coupling and spectral component regeneration
ES2354427T3 (es) 2003-06-30 2011-03-14 Koninklijke Philips Electronics N.V. Mejora de la calidad de audio decodificado mediante la adición de ruido.
ES2291939T3 (es) 2003-09-29 2008-03-01 Koninklijke Philips Electronics N.V. Codificacion de señales de audio.
US7447317B2 (en) 2003-10-02 2008-11-04 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V Compatible multi-channel coding/decoding by weighting the downmix channel
CN100507485C (zh) 2003-10-23 2009-07-01 松下电器产业株式会社 频谱编码装置和频谱解码装置
RU2374703C2 (ru) 2003-10-30 2009-11-27 Конинклейке Филипс Электроникс Н.В. Кодирование или декодирование аудиосигнала
US7809579B2 (en) * 2003-12-19 2010-10-05 Telefonaktiebolaget Lm Ericsson (Publ) Fidelity-optimized variable frame length encoding
US7394903B2 (en) 2004-01-20 2008-07-01 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Apparatus and method for constructing a multi-channel output signal or for generating a downmix signal
US7460990B2 (en) 2004-01-23 2008-12-02 Microsoft Corporation Efficient coding of digital media spectral data using wide-sense perceptual similarity
ATE527654T1 (de) 2004-03-01 2011-10-15 Dolby Lab Licensing Corp Mehrkanal-audiodecodierung
US7805313B2 (en) 2004-03-04 2010-09-28 Agere Systems Inc. Frequency-based coding of channels in parametric multi-channel coding systems
JP5032977B2 (ja) 2004-04-05 2012-09-26 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ マルチチャンネル・エンコーダ
FI119533B (fi) 2004-04-15 2008-12-15 Nokia Corp Audiosignaalien koodaus
SE0400997D0 (sv) 2004-04-16 2004-04-16 Cooding Technologies Sweden Ab Efficient coding of multi-channel audio
WO2006000842A1 (en) 2004-05-28 2006-01-05 Nokia Corporation Multichannel audio extension
KR100634506B1 (ko) 2004-06-25 2006-10-16 삼성전자주식회사 저비트율 부호화/복호화 방법 및 장치
US7352858B2 (en) 2004-06-30 2008-04-01 Microsoft Corporation Multi-channel echo cancellation with round robin regularization
KR100773539B1 (ko) 2004-07-14 2007-11-05 삼성전자주식회사 멀티채널 오디오 데이터 부호화/복호화 방법 및 장치
US20060025991A1 (en) 2004-07-23 2006-02-02 Lg Electronics Inc. Voice coding apparatus and method using PLP in mobile communications terminal
US7630396B2 (en) 2004-08-26 2009-12-08 Panasonic Corporation Multichannel signal coding equipment and multichannel signal decoding equipment
EP1638083B1 (de) 2004-09-17 2009-04-22 Harman Becker Automotive Systems GmbH Bandbreitenerweiterung von bandbegrenzten Tonsignalen
US7630902B2 (en) 2004-09-17 2009-12-08 Digital Rise Technology Co., Ltd. Apparatus and methods for digital audio coding using codebook application ranges
SE0402652D0 (sv) 2004-11-02 2004-11-02 Coding Tech Ab Methods for improved performance of prediction based multi- channel reconstruction
US7508863B2 (en) 2004-12-13 2009-03-24 Alcatel-Lucent Usa Inc. Method of processing multi-path signals
US20060259303A1 (en) 2005-05-12 2006-11-16 Raimo Bakis Systems and methods for pitch smoothing for text-to-speech synthesis
US7548853B2 (en) 2005-06-17 2009-06-16 Shmunk Dmitry V Scalable compressed audio bit stream and codec using a hierarchical filterbank and multichannel joint coding
US7562021B2 (en) 2005-07-15 2009-07-14 Microsoft Corporation Modification of codewords in dictionary used for efficient coding of digital media spectral data
US7539612B2 (en) 2005-07-15 2009-05-26 Microsoft Corporation Coding and decoding scale factor information
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
US7630882B2 (en) 2005-07-15 2009-12-08 Microsoft Corporation Frequency segmentation to obtain bands for efficient coding of digital media
CN102237094B (zh) 2005-10-12 2013-02-20 三星电子株式会社 处理/发送比特流以及接收/处理比特流的方法和设备
US20070094035A1 (en) * 2005-10-21 2007-04-26 Nokia Corporation Audio coding
US20070168197A1 (en) 2006-01-18 2007-07-19 Nokia Corporation Audio coding
US8190425B2 (en) 2006-01-20 2012-05-29 Microsoft Corporation Complex cross-correlation parameters for multi-channel audio
US7831434B2 (en) 2006-01-20 2010-11-09 Microsoft Corporation Complex-transform channel coding with extended-band frequency coding
US7953604B2 (en) 2006-01-20 2011-05-31 Microsoft Corporation Shape and scale parameters for extended-band frequency coding
JP2009534713A (ja) 2006-04-24 2009-09-24 ネロ アーゲー 低減ビットレートを有するデジタル音声データを符号化するための装置および方法
US8379868B2 (en) 2006-05-17 2013-02-19 Creative Technology Ltd Spatial audio coding based on universal spatial cues
US8135047B2 (en) 2006-07-31 2012-03-13 Qualcomm Incorporated Systems and methods for including an identifier with a packet associated with a speech signal
US7761290B2 (en) 2007-06-15 2010-07-20 Microsoft Corporation Flexible frequency and time partitioning in perceptual transform coding of audio
US7774205B2 (en) 2007-06-15 2010-08-10 Microsoft Corporation Coding of sparse digital media spectral data
US8046214B2 (en) 2007-06-22 2011-10-25 Microsoft Corporation Low complexity decoder for complex transform coding of multi-channel sound
US7885819B2 (en) 2007-06-29 2011-02-08 Microsoft Corporation Bitstream syntax for multi-process audio decoding
US8249883B2 (en) 2007-10-26 2012-08-21 Microsoft Corporation Channel extension coding for multi-channel source

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KR20110093953A (ko) 2011-08-18
US20090083046A1 (en) 2009-03-26
KR101130355B1 (ko) 2012-03-27
KR20060121655A (ko) 2006-11-29
CN1813286B (zh) 2010-11-24
JP2014240963A (ja) 2014-12-25
CN1813286A (zh) 2006-08-02
JP2011186479A (ja) 2011-09-22
US20050165611A1 (en) 2005-07-28
US8645127B2 (en) 2014-02-04
DE602004024591D1 (de) 2010-01-21
KR101083572B1 (ko) 2011-11-14
US7460990B2 (en) 2008-12-02
JP4745986B2 (ja) 2011-08-10
KR101251813B1 (ko) 2013-04-09
EP1730725A4 (de) 2007-05-30
WO2005076260A1 (en) 2005-08-18
JP2007532934A (ja) 2007-11-15
KR20110042137A (ko) 2011-04-22
JP2017037311A (ja) 2017-02-16
EP1730725A1 (de) 2006-12-13
JP6262820B2 (ja) 2018-01-17

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