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ES2143868T3 - Procedimiento para codificar y decodificar valores espectrales estereo audio. - Google Patents

Procedimiento para codificar y decodificar valores espectrales estereo audio.

Info

Publication number
ES2143868T3
ES2143868T3 ES97925036T ES97925036T ES2143868T3 ES 2143868 T3 ES2143868 T3 ES 2143868T3 ES 97925036 T ES97925036 T ES 97925036T ES 97925036 T ES97925036 T ES 97925036T ES 2143868 T3 ES2143868 T3 ES 2143868T3
Authority
ES
Spain
Prior art keywords
spectral values
coding
procedure
coding table
code
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.)
Expired - Lifetime
Application number
ES97925036T
Other languages
English (en)
Inventor
Uwe Gbur
Martin Dietz
Bodo Teichmann
Karlheinz Brandenburg
Heinz Gerhauser
Jurgen Herre
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.)
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
AT&T Labs Inc
Nokia of America Corp
Original Assignee
Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Lucent Technologies Inc
AT&T Labs Inc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7799742&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2143868(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV, Lucent Technologies Inc, AT&T Labs Inc filed Critical Fraunhofer Gesellschaft zur Foerderung der Angewandten Forschung eV
Application granted granted Critical
Publication of ES2143868T3 publication Critical patent/ES2143868T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H04S1/007—Two-channel systems in which the audio signals are in digital form

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Mathematical Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

UN PROCEDIMIENTO PARA CODIFICACION DE VALORES ESPECTRALES ESTEREOFONICOS, ESTANDO AGRUPADOS PRIMERAMENTE LOS VALORES ESPECTRALES ESTEREOFONICOS EN BANDAS (28) DE FACTOR DE ESCALA A LAS QUE ESTAN ASOCIADOS FACTORES DE ESCALA. LAS SECCIONES SON ENTONCES FORMADAS CONSISTIENDO EN AL MENOS UNA BANDA (28) DE FACTOR DE ESCALA. LOS VALORES ESPECTRALES SON CODIFICADOS EN AL MENOS UNA SECCION CON UNA TABLA DE CODIFICACION ASOCIADA A LA SECCION ENTRE UNA PLURALIDAD DE TABLAS DE CODIFICACION ASOCIADAS CADA UNA DE ELLAS A UN NUMERO DE TABLA DE CODIFICACION. EL NUMERO DE LA TABLA DE CODIFICACION UTILIZADA ES TRANSMITIDO CONJUNTAMENTE CON LOS VALORES ESPECTRALES ESTEREOFONICOS CODIFICADOS COMO INFORMACION SUPLEMENTARIA. SE HA PREVISTO AL MENOS UN NUMERO DE TABLA DE CODIFICACION ADICIONAL QUE NO ESTA RELACIONADA A LA TABLA DE CODIFICACION PERO SUMINISTRA INFORMACION RELEVANTE A LA SECCION A LA CUAL ESTA ASOCIADA LA TABLA DE CODIFICACION. UN PROCEDIMIENTO PARA DESCODIFICACION DE VALORES ESPECTRALES ESTEREOFONICOS QUE HAN SIDO CODIFICADOS PARCIALMENTE POR MEDIO DE UN PROCESO DE INTENSIDAD Y CONTIENEN INFORMACIONES SUPLEMENTARIAS UTILIZA LA INFORMACION RELEVANTE SUMINISTRADA POR MEDIO DE LOS NUMEROS DE TABLA DE CODIFICACION ADICIONAL PARA ANULAR LA CODIFICACION DE LOS VALORES ESPECTRALES ESTEREOFONICOS.
ES97925036T 1996-07-12 1997-06-03 Procedimiento para codificar y decodificar valores espectrales estereo audio. Expired - Lifetime ES2143868T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19628292A DE19628292B4 (de) 1996-07-12 1996-07-12 Verfahren zum Codieren und Decodieren von Stereoaudiospektralwerten

Publications (1)

Publication Number Publication Date
ES2143868T3 true ES2143868T3 (es) 2000-05-16

Family

ID=7799742

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97925036T Expired - Lifetime ES2143868T3 (es) 1996-07-12 1997-06-03 Procedimiento para codificar y decodificar valores espectrales estereo audio.

Country Status (14)

Country Link
US (1) US6771777B1 (es)
EP (1) EP0910927B1 (es)
JP (1) JP3622982B2 (es)
KR (1) KR100316582B1 (es)
AT (1) ATE188832T1 (es)
AU (1) AU712196B2 (es)
CA (1) CA2260090C (es)
DE (2) DE19628292B4 (es)
DK (1) DK0910927T3 (es)
ES (1) ES2143868T3 (es)
GR (1) GR3032444T3 (es)
NO (1) NO317570B1 (es)
PT (1) PT910927E (es)
WO (1) WO1998003036A1 (es)

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KR101315077B1 (ko) * 2005-03-30 2013-10-08 코닌클리케 필립스 일렉트로닉스 엔.브이. 멀티-채널 오디오 데이터를 인코딩 및 디코딩하기 위한 방법, 및 인코더들 및 디코더들
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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
KR100851970B1 (ko) * 2005-07-15 2008-08-12 삼성전자주식회사 오디오 신호의 중요주파수 성분 추출방법 및 장치와 이를이용한 저비트율 오디오 신호 부호화/복호화 방법 및 장치
US7562021B2 (en) 2005-07-15 2009-07-14 Microsoft Corporation Modification of codewords in dictionary used for efficient coding of digital media spectral data
US7599840B2 (en) 2005-07-15 2009-10-06 Microsoft Corporation Selectively using multiple entropy models in adaptive coding and decoding
US7933337B2 (en) * 2005-08-12 2011-04-26 Microsoft Corporation Prediction of transform coefficients for image compression
US7565018B2 (en) * 2005-08-12 2009-07-21 Microsoft Corporation Adaptive coding and decoding of wide-range coefficients
US8599925B2 (en) * 2005-08-12 2013-12-03 Microsoft Corporation Efficient coding and decoding of transform blocks
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
US8184710B2 (en) 2007-02-21 2012-05-22 Microsoft Corporation Adaptive truncation of transform coefficient data in a transform-based digital media codec
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Also Published As

Publication number Publication date
CA2260090C (en) 2000-10-17
US6771777B1 (en) 2004-08-03
KR100316582B1 (ko) 2002-02-28
EP0910927B1 (de) 2000-01-12
DE19628292A1 (de) 1998-01-15
AU3031897A (en) 1998-02-09
GR3032444T3 (en) 2000-05-31
WO1998003036A1 (de) 1998-01-22
NO990106D0 (no) 1999-01-11
ATE188832T1 (de) 2000-01-15
DE19628292B4 (de) 2007-08-02
EP0910927A1 (de) 1999-04-28
NO317570B1 (no) 2004-11-15
DK0910927T3 (da) 2000-05-08
AU712196B2 (en) 1999-10-28
JP2000505266A (ja) 2000-04-25
DE59701014D1 (de) 2000-02-17
KR20000022435A (ko) 2000-04-25
CA2260090A1 (en) 1998-01-22
PT910927E (pt) 2000-04-28
JP3622982B2 (ja) 2005-02-23
NO990106L (no) 1999-03-10

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