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EP1175030A3 - Méthode et système pour le codage perceptuel de signaux audiophoniques multicanal par transformation en cosinus discrète et cosinus discrète modifiée à cascades - Google Patents

Méthode et système pour le codage perceptuel de signaux audiophoniques multicanal par transformation en cosinus discrète et cosinus discrète modifiée à cascades Download PDF

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Publication number
EP1175030A3
EP1175030A3 EP01305191A EP01305191A EP1175030A3 EP 1175030 A3 EP1175030 A3 EP 1175030A3 EP 01305191 A EP01305191 A EP 01305191A EP 01305191 A EP01305191 A EP 01305191A EP 1175030 A3 EP1175030 A3 EP 1175030A3
Authority
EP
European Patent Office
Prior art keywords
discrete cosine
cosine transform
coding efficiency
multichannel
channel
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP01305191A
Other languages
German (de)
English (en)
Other versions
EP1175030A2 (fr
EP1175030B1 (fr
Inventor
Ye Wang
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.)
Nokia Solutions and Networks Oy
Original Assignee
Nokia Oyj
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
Publication date
Application filed by Nokia Oyj filed Critical Nokia Oyj
Publication of EP1175030A2 publication Critical patent/EP1175030A2/fr
Publication of EP1175030A3 publication Critical patent/EP1175030A3/fr
Application granted granted Critical
Publication of EP1175030B1 publication Critical patent/EP1175030B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/86—Arrangements characterised by the broadcast information itself
    • H04H20/88—Stereophonic broadcast systems
    • 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
    • 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
    • G10L19/0212—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 orthogonal transformation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Analogue/Digital Conversion (AREA)
EP01305191A 2000-07-07 2001-06-14 Méthode et système pour le codage perceptuel de signaux audiophoniques multicanal par transformation en cosinus discrète et cosinus discrète modifiée à cascades Expired - Lifetime EP1175030B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US612207 1984-05-21
US61220700A 2000-07-07 2000-07-07

Publications (3)

Publication Number Publication Date
EP1175030A2 EP1175030A2 (fr) 2002-01-23
EP1175030A3 true EP1175030A3 (fr) 2002-10-23
EP1175030B1 EP1175030B1 (fr) 2008-02-20

Family

ID=24452190

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01305191A Expired - Lifetime EP1175030B1 (fr) 2000-07-07 2001-06-14 Méthode et système pour le codage perceptuel de signaux audiophoniques multicanal par transformation en cosinus discrète et cosinus discrète modifiée à cascades

Country Status (3)

Country Link
EP (1) EP1175030B1 (fr)
AT (1) ATE387044T1 (fr)
DE (1) DE60132853D1 (fr)

Families Citing this family (17)

* 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
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
US7502743B2 (en) 2002-09-04 2009-03-10 Microsoft Corporation Multi-channel audio encoding and decoding with multi-channel transform selection
JP4676140B2 (ja) 2002-09-04 2011-04-27 マイクロソフト コーポレーション オーディオの量子化および逆量子化
US7299190B2 (en) 2002-09-04 2007-11-20 Microsoft Corporation Quantization and inverse quantization for audio
US7460990B2 (en) 2004-01-23 2008-12-02 Microsoft Corporation Efficient coding of digital media spectral data using wide-sense perceptual similarity
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
US8190425B2 (en) 2006-01-20 2012-05-29 Microsoft Corporation Complex cross-correlation parameters for multi-channel 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
US8249883B2 (en) 2007-10-26 2012-08-21 Microsoft Corporation Channel extension coding for multi-channel source
US8631060B2 (en) * 2007-12-13 2014-01-14 Qualcomm Incorporated Fast algorithms for computation of 5-point DCT-II, DCT-IV, and DST-IV, and architectures
US20120215788A1 (en) * 2009-11-18 2012-08-23 Nokia Corporation Data Processing
KR101666465B1 (ko) 2010-07-22 2016-10-17 삼성전자주식회사 다채널 오디오 신호 부호화/복호화 장치 및 방법
SG193237A1 (en) 2011-03-28 2013-10-30 Dolby Lab Licensing Corp Reduced complexity transform for a low-frequency-effects channel
CN115410584A (zh) * 2021-05-28 2022-11-29 华为技术有限公司 多声道音频信号的编码方法和装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0655876A1 (fr) * 1993-11-23 1995-05-31 AT&T Corp. Codage perceptuel de signaux audio
EP0663741A2 (fr) * 1994-01-18 1995-07-19 Daewoo Electronics Co., Ltd Système de codage adaptif de signaux audio-numériques
EP0688113A2 (fr) * 1994-06-13 1995-12-20 Sony Corporation Méthode et dispositif pour le codage et décodage de signaux audio-numériques et dispositif pour enregistrer ces signaux
EP0797324A2 (fr) * 1996-03-22 1997-09-24 Lucent Technologies Inc. Méthode améliorée de codage stéréo combiné utilisant une mise en forme d'enveloppe temporelle
WO1998003036A1 (fr) * 1996-07-12 1998-01-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Procede de codage et de decodage de valeurs spectrales stereophoniques
US5736943A (en) * 1993-09-15 1998-04-07 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Method for determining the type of coding to be selected for coding at least two signals
US5873065A (en) * 1993-12-07 1999-02-16 Sony Corporation Two-stage compression and expansion of coupling processed multi-channel sound signals for transmission and recording

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5736943A (en) * 1993-09-15 1998-04-07 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Method for determining the type of coding to be selected for coding at least two signals
EP0655876A1 (fr) * 1993-11-23 1995-05-31 AT&T Corp. Codage perceptuel de signaux audio
US5873065A (en) * 1993-12-07 1999-02-16 Sony Corporation Two-stage compression and expansion of coupling processed multi-channel sound signals for transmission and recording
EP0663741A2 (fr) * 1994-01-18 1995-07-19 Daewoo Electronics Co., Ltd Système de codage adaptif de signaux audio-numériques
EP0688113A2 (fr) * 1994-06-13 1995-12-20 Sony Corporation Méthode et dispositif pour le codage et décodage de signaux audio-numériques et dispositif pour enregistrer ces signaux
EP0797324A2 (fr) * 1996-03-22 1997-09-24 Lucent Technologies Inc. Méthode améliorée de codage stéréo combiné utilisant une mise en forme d'enveloppe temporelle
WO1998003036A1 (fr) * 1996-07-12 1998-01-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Procede de codage et de decodage de valeurs spectrales stereophoniques

Also Published As

Publication number Publication date
EP1175030A2 (fr) 2002-01-23
ATE387044T1 (de) 2008-03-15
EP1175030B1 (fr) 2008-02-20
DE60132853D1 (de) 2008-04-03

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