JP5426680B2 - 信号処理方法及び装置 - Google Patents

信号処理方法及び装置 Download PDF

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JP5426680B2
JP5426680B2 JP2011528941A JP2011528941A JP5426680B2 JP 5426680 B2 JP5426680 B2 JP 5426680B2 JP 2011528941 A JP2011528941 A JP 2011528941A JP 2011528941 A JP2011528941 A JP 2011528941A JP 5426680 B2 JP5426680 B2 JP 5426680B2
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inter
phase difference
channel
difference value
channel phase
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Japanese (ja)
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JP2012503791A (ja
Inventor
クク リ，ヒュン
ヨン ユン，スン
スー キム，ドン
ヒュン リム，ジェ
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LG Electronics Inc
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LG Electronics Inc
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Priority claimed from PCT/KR2009/005497 external-priority patent/WO2010036059A2/en
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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
    • G10L19/008—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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Mathematical Physics (AREA)
  • Multimedia (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Algebra (AREA)
  • Pure & Applied Mathematics (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
JP2011528941A 2008-09-25 2009-09-25 信号処理方法及び装置 Active JP5426680B2 (ja)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US10026208P 2008-09-25 2008-09-25
US61/100,262 2008-09-25
KR10-2009-0090518 2009-09-24
KR1020090090518A KR101108061B1 (ko) 2008-09-25 2009-09-24 신호 처리 방법 및 이의 장치
PCT/KR2009/005497 WO2010036059A2 (en) 2008-09-25 2009-09-25 A method and an apparatus for processing a signal

Publications (2)

Publication Number Publication Date
JP2012503791A JP2012503791A (ja) 2012-02-09
JP5426680B2 true JP5426680B2 (ja) 2014-02-26

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JP2011528942A Active JP5480274B2 (ja) 2008-09-25 2009-09-25 信号処理方法及び装置
JP2011528941A Active JP5426680B2 (ja) 2008-09-25 2009-09-25 信号処理方法及び装置

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JP (2) JP5480274B2 (ko)
KR (3) KR101108061B1 (ko)
CN (2) CN102165520B (ko)
ES (1) ES2547232T3 (ko)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX2011006248A (es) * 2009-04-08 2011-07-20 Fraunhofer Ges Forschung Aparato, metodo y programa de computacion para mezclar en forma ascendente una señal de audio con mezcla descendente utilizando una suavizacion de valor de fase.
KR101748756B1 (ko) * 2011-03-18 2017-06-19 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에.베. 오디오 콘텐츠를 표현하는 비트스트림의 프레임들 내의 프레임 요소 배치
CN102446507B (zh) * 2011-09-27 2013-04-17 华为技术有限公司 一种下混信号生成、还原的方法和装置
WO2013149673A1 (en) * 2012-04-05 2013-10-10 Huawei Technologies Co., Ltd. Method for inter-channel difference estimation and spatial audio coding device
ES2560402T3 (es) * 2012-04-05 2016-02-18 Huawei Technologies Co., Ltd Método para la codificación y la decodificación de audio espacial paramétrica, codificador de audio espacial paramétrico y decodificador de audio espacial paramétrico
EP2790419A1 (en) * 2013-04-12 2014-10-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for center signal scaling and stereophonic enhancement based on a signal-to-downmix ratio
EP2830045A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Concept for audio encoding and decoding for audio channels and audio objects
EP2830047A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for low delay object metadata coding
BR112016008426B1 (pt) * 2013-10-21 2022-09-27 Dolby International Ab Método para reconstrução de uma pluralidade de sinais de áudio, sistema de decodificação de áudio, método para codificação de uma pluralidade de sinais de áudio, sistema de codificação de áudio, e mídia legível por computador
CN104681029B (zh) 2013-11-29 2018-06-05 华为技术有限公司 立体声相位参数的编码方法及装置
CN107452387B (zh) 2016-05-31 2019-11-12 华为技术有限公司 一种声道间相位差参数的提取方法及装置
CN108694955B (zh) 2017-04-12 2020-11-17 华为技术有限公司 多声道信号的编解码方法和编解码器
CN109215668B (zh) 2017-06-30 2021-01-05 华为技术有限公司 一种声道间相位差参数的编码方法及装置
CN110556118B (zh) 2018-05-31 2022-05-10 华为技术有限公司 立体声信号的编码方法和装置
EP3881560B1 (en) * 2018-11-13 2024-07-24 Dolby Laboratories Licensing Corporation Representing spatial audio by means of an audio signal and associated metadata

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002208869A (ja) * 2001-01-09 2002-07-26 Sony Corp マルチバンド無線信号送受信装置
SE0202159D0 (sv) 2001-07-10 2002-07-09 Coding Technologies Sweden Ab Efficientand scalable parametric stereo coding for low bitrate applications
ES2268340T3 (es) * 2002-04-22 2007-03-16 Koninklijke Philips Electronics N.V. Representacion de audio parametrico de multiples canales.
CA3035175C (en) * 2004-03-01 2020-02-25 Mark Franklin Davis Reconstructing audio signals with multiple decorrelation techniques
EP1735774B1 (en) * 2004-04-05 2008-05-14 Koninklijke Philips Electronics N.V. Multi-channel encoder
JP4939933B2 (ja) * 2004-05-19 2012-05-30 パナソニック株式会社 オーディオ信号符号化装置及びオーディオ信号復号化装置
WO2006003813A1 (ja) 2004-07-02 2006-01-12 Matsushita Electric Industrial Co., Ltd. オーディオ符号化及び復号化装置
US7903824B2 (en) * 2005-01-10 2011-03-08 Agere Systems Inc. Compact side information for parametric coding of spatial audio
EP1927266B1 (en) * 2005-09-13 2014-05-14 Koninklijke Philips N.V. Audio coding
EP2100297A4 (en) * 2006-09-29 2011-07-27 Korea Electronics Telecomm DEVICE AND METHOD FOR CODING AND DECODING A MEHROBJECT AUDIO SIGNAL WITH DIFFERENT CHANNELS
KR100917845B1 (ko) * 2006-12-04 2009-09-18 한국전자통신연구원 상호상관을 이용한 다채널 오디오 신호 복호화 장치 및 그방법
EP2144229A1 (en) * 2008-07-11 2010-01-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Efficient use of phase information in audio encoding and decoding

Also Published As

Publication number Publication date
CN102165519A (zh) 2011-08-24
JP2012503791A (ja) 2012-02-09
KR20100035121A (ko) 2010-04-02
KR20100035122A (ko) 2010-04-02
ES2547232T3 (es) 2015-10-02
KR101108061B1 (ko) 2012-01-25
KR20100035120A (ko) 2010-04-02
CN102165520A (zh) 2011-08-24
JP5480274B2 (ja) 2014-04-23
JP2012503792A (ja) 2012-02-09
KR101108060B1 (ko) 2012-01-25
CN102165520B (zh) 2012-11-28

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