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SE0400998D0 - Method for representing multi-channel audio signals - Google Patents

Method for representing multi-channel audio signals

Info

Publication number
SE0400998D0
SE0400998D0 SE0400998A SE0400998A SE0400998D0 SE 0400998 D0 SE0400998 D0 SE 0400998D0 SE 0400998 A SE0400998 A SE 0400998A SE 0400998 A SE0400998 A SE 0400998A SE 0400998 D0 SE0400998 D0 SE 0400998D0
Authority
SE
Sweden
Prior art keywords
audio channels
audio signals
channel audio
representing multi
parameter
Prior art date
Application number
SE0400998A
Other languages
English (en)
Inventor
Heiko Purnhagen
Lars Villemoes
Jonas Engdegaard
Jonas Roeden
Kristofer Kjoerling
Original Assignee
Cooding Technologies Sweden Ab
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 Cooding Technologies Sweden Ab filed Critical Cooding Technologies Sweden Ab
Priority to SE0400998A priority Critical patent/SE0400998D0/sv
Publication of SE0400998D0 publication Critical patent/SE0400998D0/sv
Priority to JP2007505521A priority patent/JP4589962B2/ja
Priority to KR1020067021198A priority patent/KR100848365B1/ko
Priority to CN2005800186599A priority patent/CN1965351B/zh
Priority to DE602005002451T priority patent/DE602005002451T2/de
Priority to CN201010183360.1A priority patent/CN101860784B/zh
Priority to AT05743164T priority patent/ATE373301T1/de
Priority to DE602005002942T priority patent/DE602005002942T2/de
Priority to AT05735201T priority patent/ATE376240T1/de
Priority to CN201110097029.2A priority patent/CN102157155B/zh
Priority to PCT/EP2005/003849 priority patent/WO2005101371A1/en
Priority to CN2005800073514A priority patent/CN1930608B/zh
Priority to PCT/EP2005/003848 priority patent/WO2005101370A1/en
Priority to JP2007507735A priority patent/JP4603037B2/ja
Priority to PL05743164T priority patent/PL1695338T3/pl
Priority to KR1020067017536A priority patent/KR100848367B1/ko
Priority to EP05735201A priority patent/EP1735775B8/en
Priority to PL05735201T priority patent/PL1735775T3/pl
Priority to ES05735201T priority patent/ES2294703T3/es
Priority to ES05743164T priority patent/ES2293578T3/es
Priority to EP05743164A priority patent/EP1695338B1/en
Priority to TW094126936A priority patent/TWI334736B/zh
Priority to US11/517,900 priority patent/US8223976B2/en
Priority to US11/549,963 priority patent/US7986789B2/en
Priority to HK07100363A priority patent/HK1093594A1/xx
Priority to JP2010178268A priority patent/JP5185337B2/ja
Priority to JP2010183775A priority patent/JP5185340B2/ja
Priority to US12/872,507 priority patent/US8693696B2/en
Priority to US12/882,894 priority patent/US8538031B2/en
Priority to HK10110525.1A priority patent/HK1144043A1/zh
Priority to HK12100944.3A priority patent/HK1163911A1/xx
Priority to US13/866,947 priority patent/US10015597B2/en
Priority to US14/157,117 priority patent/US9743185B2/en
Priority to US15/077,798 priority patent/US9635462B2/en
Priority to US15/079,653 priority patent/US9621990B2/en
Priority to US15/426,867 priority patent/US10271142B2/en
Priority to US15/498,362 priority patent/US10250984B2/en
Priority to US15/498,407 priority patent/US9972329B2/en
Priority to US15/498,401 priority patent/US9972328B2/en
Priority to US15/498,350 priority patent/US10244319B2/en
Priority to US15/498,384 priority patent/US10244321B2/en
Priority to US15/498,413 priority patent/US10440474B2/en
Priority to US15/498,417 priority patent/US9972330B2/en
Priority to US15/498,389 priority patent/US10250985B2/en
Priority to US15/498,393 priority patent/US10129645B2/en
Priority to US15/498,376 priority patent/US10244320B2/en
Priority to US16/454,250 priority patent/US10499155B2/en
Priority to US16/584,655 priority patent/US10623860B2/en
Priority to US16/846,828 priority patent/US11184709B2/en
Priority to US17/532,962 priority patent/US11647333B2/en
Priority to US18/311,854 priority patent/US12075224B2/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • 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
    • G10L19/0204—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
    • 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
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • 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
    • G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
    • 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
    • G10L19/26—Pre-filtering or post-filtering
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/01—Multi-channel, i.e. more than two input channels, sound reproduction with two speakers wherein the multi-channel information is substantially preserved
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/03—Aspects of down-mixing multi-channel audio to configurations with lower numbers of playback channels, e.g. 7.1 -> 5.1
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/03—Application of parametric coding in stereophonic audio systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Analysis (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Algebra (AREA)
  • Pure & Applied Mathematics (AREA)
  • Stereophonic System (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Radio Relay Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Circuits Of Receivers In General (AREA)
SE0400998A 2004-04-16 2004-04-16 Method for representing multi-channel audio signals SE0400998D0 (sv)

Priority Applications (51)

Application Number Priority Date Filing Date Title
SE0400998A SE0400998D0 (sv) 2004-04-16 2004-04-16 Method for representing multi-channel audio signals
JP2007505521A JP4589962B2 (ja) 2004-04-16 2005-04-12 レベル・パラメータを生成する装置と方法、及びマルチチャネル表示を生成する装置と方法
KR1020067021198A KR100848365B1 (ko) 2004-04-16 2005-04-12 멀티채널 오디오 신호를 표현하는 방법
CN2005800186599A CN1965351B (zh) 2004-04-16 2005-04-12 用于产生/重建多声道表示的方法和设备
DE602005002451T DE602005002451T2 (de) 2004-04-16 2005-04-12 Vorrichtung und verfahren zur erzeugung eines pegelparameters und vorrichtung und verfahren zur erzeugung einer mehrkanal-repräsentation
CN201010183360.1A CN101860784B (zh) 2004-04-16 2005-04-12 多声道音频信号表示方法
AT05743164T ATE373301T1 (de) 2004-04-16 2005-04-12 Vorrichtung und verfahren zur erzeugung eines pegelparameters und vorrichtung und verfahren zur erzeugung einer mehrkanal-repräsentation
DE602005002942T DE602005002942T2 (de) 2004-04-16 2005-04-12 Verfahren zur darstellung von mehrkanal-audiosignalen
AT05735201T ATE376240T1 (de) 2004-04-16 2005-04-12 Verfahren zur darstellung von mehrkanal- audiosignalen
CN201110097029.2A CN102157155B (zh) 2004-04-16 2005-04-12 多声道音频信号表示方法
PCT/EP2005/003849 WO2005101371A1 (en) 2004-04-16 2005-04-12 Method for representing multi-channel audio signals
CN2005800073514A CN1930608B (zh) 2004-04-16 2005-04-12 生成等级参数的设备和方法及生成多通道表示的设备和方法
PCT/EP2005/003848 WO2005101370A1 (en) 2004-04-16 2005-04-12 Apparatus and method for generating a level parameter and apparatus and method for generating a multi-channel representation
JP2007507735A JP4603037B2 (ja) 2004-04-16 2005-04-12 マルチチャネルオーディオ信号を表示するための装置と方法
PL05743164T PL1695338T3 (pl) 2004-04-16 2005-04-12 Urządzenie oraz sposób generowania parametru związanego z poziomem oraz urządzenie i sposób generowania reprezentacji sygnału wielokanałowego
KR1020067017536A KR100848367B1 (ko) 2004-04-16 2005-04-12 레벨 파라미터를 발생하는 장치 및 방법 그리고 멀티채널표현을 발생하는 장치 및 방법
EP05735201A EP1735775B8 (en) 2004-04-16 2005-04-12 Method for representing multi-channel audio signals
PL05735201T PL1735775T3 (pl) 2004-04-16 2005-04-12 Sposób prezentowania wielokanałowych sygnałów audio
ES05735201T ES2294703T3 (es) 2004-04-16 2005-04-12 Metodo para representar señales de audio multicanal.
ES05743164T ES2293578T3 (es) 2004-04-16 2005-04-12 Aparato y metodo para generar un parametro de nivel y aparato y metodo para generar una representacion multicanal.
EP05743164A EP1695338B1 (en) 2004-04-16 2005-04-12 Apparatus and method for generating a level parameter and apparatus and method for generating a multi-channel representation
TW094126936A TWI334736B (en) 2004-04-16 2005-08-09 Apparatus and method for generating a level parameter, apparatus and method for generating a multi-channel representation and a storage media stored parameter representation
US11/517,900 US8223976B2 (en) 2004-04-16 2006-09-08 Apparatus and method for generating a level parameter and apparatus and method for generating a multi-channel representation
US11/549,963 US7986789B2 (en) 2004-04-16 2006-10-16 Method for representing multi-channel audio signals
HK07100363A HK1093594A1 (en) 2004-04-16 2007-01-10 Apparatus and method for generating a level parameter and apparatus and method for generating a multi-channel representation
JP2010178268A JP5185337B2 (ja) 2004-04-16 2010-08-09 レベル・パラメータを生成する装置と方法、及びマルチチャネル表示を生成する装置と方法
JP2010183775A JP5185340B2 (ja) 2004-04-16 2010-08-19 マルチチャネルオーディオ信号を表示するための装置と方法
US12/872,507 US8693696B2 (en) 2004-04-16 2010-08-31 Apparatus and method for generating a level parameter and apparatus and method for generating a multi-channel representation
US12/882,894 US8538031B2 (en) 2004-04-16 2010-09-15 Method for representing multi-channel audio signals
HK10110525.1A HK1144043A1 (zh) 2004-04-16 2010-11-11 多聲道音頻信號表示方法
HK12100944.3A HK1163911A1 (en) 2004-04-16 2012-02-02 Method for representing multi-channel audio signals
US13/866,947 US10015597B2 (en) 2004-04-16 2013-04-19 Method for representing multi-channel audio signals
US14/157,117 US9743185B2 (en) 2004-04-16 2014-01-16 Apparatus and method for generating a level parameter and apparatus and method for generating a multi-channel representation
US15/077,798 US9635462B2 (en) 2004-04-16 2016-03-22 Reconstructing audio channels with a fractional delay decorrelator
US15/079,653 US9621990B2 (en) 2004-04-16 2016-03-24 Audio decoder with core decoder and surround decoder
US15/426,867 US10271142B2 (en) 2004-04-16 2017-02-07 Audio decoder with core decoder and surround decoder
US15/498,362 US10250984B2 (en) 2004-04-16 2017-04-26 Audio decoder for audio channel reconstruction
US15/498,407 US9972329B2 (en) 2004-04-16 2017-04-26 Audio decoder for audio channel reconstruction
US15/498,401 US9972328B2 (en) 2004-04-16 2017-04-26 Audio decoder for audio channel reconstruction
US15/498,350 US10244319B2 (en) 2004-04-16 2017-04-26 Audio decoder for audio channel reconstruction
US15/498,384 US10244321B2 (en) 2004-04-16 2017-04-26 Audio decoder for audio channel reconstruction
US15/498,413 US10440474B2 (en) 2004-04-16 2017-04-26 Audio decoder for audio channel reconstruction
US15/498,417 US9972330B2 (en) 2004-04-16 2017-04-26 Audio decoder for audio channel reconstruction
US15/498,389 US10250985B2 (en) 2004-04-16 2017-04-26 Audio decoder for audio channel reconstruction
US15/498,393 US10129645B2 (en) 2004-04-16 2017-04-26 Audio decoder for audio channel reconstruction
US15/498,376 US10244320B2 (en) 2004-04-16 2017-04-26 Audio decoder for audio channel reconstruction
US16/454,250 US10499155B2 (en) 2004-04-16 2019-06-27 Audio decoder for audio channel reconstruction
US16/584,655 US10623860B2 (en) 2004-04-16 2019-09-26 Audio decoder for audio channel reconstruction
US16/846,828 US11184709B2 (en) 2004-04-16 2020-04-13 Audio decoder for audio channel reconstruction
US17/532,962 US11647333B2 (en) 2004-04-16 2021-11-22 Audio decoder for audio channel reconstruction
US18/311,854 US12075224B2 (en) 2004-04-16 2023-05-03 Audio decoder for audio channel reconstruction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0400998A SE0400998D0 (sv) 2004-04-16 2004-04-16 Method for representing multi-channel audio signals

Publications (1)

Publication Number Publication Date
SE0400998D0 true SE0400998D0 (sv) 2004-04-16

Family

ID=32294334

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0400998A SE0400998D0 (sv) 2004-04-16 2004-04-16 Method for representing multi-channel audio signals

Country Status (13)

Country Link
US (24) US8223976B2 (sv)
EP (2) EP1695338B1 (sv)
JP (4) JP4589962B2 (sv)
KR (2) KR100848367B1 (sv)
CN (4) CN101860784B (sv)
AT (2) ATE373301T1 (sv)
DE (2) DE602005002942T2 (sv)
ES (2) ES2294703T3 (sv)
HK (3) HK1093594A1 (sv)
PL (2) PL1695338T3 (sv)
SE (1) SE0400998D0 (sv)
TW (1) TWI334736B (sv)
WO (2) WO2005101371A1 (sv)

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