MX2010012580A - Aparato de mezcla ascendente estereo parametrico, decodificador estereo parametrico, aparato de mezcla descendente estereo parametrico, codificador estereo parametrico. - Google Patents

Aparato de mezcla ascendente estereo parametrico, decodificador estereo parametrico, aparato de mezcla descendente estereo parametrico, codificador estereo parametrico.

Info

Publication number
MX2010012580A
MX2010012580A MX2010012580A MX2010012580A MX2010012580A MX 2010012580 A MX2010012580 A MX 2010012580A MX 2010012580 A MX2010012580 A MX 2010012580A MX 2010012580 A MX2010012580 A MX 2010012580A MX 2010012580 A MX2010012580 A MX 2010012580A
Authority
MX
Mexico
Prior art keywords
signal
monaural
difference
parametric stereo
downmix
Prior art date
Application number
MX2010012580A
Other languages
English (en)
Spanish (es)
Inventor
Erik G P Schuijers
Original Assignee
Koninkl Philips Electronics Nv
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.)
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Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40943873&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=MX2010012580(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of MX2010012580A publication Critical patent/MX2010012580A/es

Links

Classifications

    • 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 
    • 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
    • G10L19/018—Audio watermarking, i.e. embedding inaudible data in the audio signal
    • 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 
    • 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 
    • 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)
  • Mathematical Physics (AREA)
  • Multimedia (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
MX2010012580A 2008-05-23 2009-05-14 Aparato de mezcla ascendente estereo parametrico, decodificador estereo parametrico, aparato de mezcla descendente estereo parametrico, codificador estereo parametrico. MX2010012580A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP08156801 2008-05-23
PCT/IB2009/052009 WO2009141775A1 (en) 2008-05-23 2009-05-14 A parametric stereo upmix apparatus, a parametric stereo decoder, a parametric stereo downmix apparatus, a parametric stereo encoder

Publications (1)

Publication Number Publication Date
MX2010012580A true MX2010012580A (es) 2010-12-20

Family

ID=40943873

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2010012580A MX2010012580A (es) 2008-05-23 2009-05-14 Aparato de mezcla ascendente estereo parametrico, decodificador estereo parametrico, aparato de mezcla descendente estereo parametrico, codificador estereo parametrico.

Country Status (10)

Country Link
US (6) US8811621B2 (enExample)
EP (1) EP2283483B1 (enExample)
JP (1) JP5122681B2 (enExample)
KR (1) KR101629862B1 (enExample)
CN (1) CN102037507B (enExample)
BR (3) BR122020009727B1 (enExample)
MX (1) MX2010012580A (enExample)
RU (1) RU2497204C2 (enExample)
TW (1) TWI484477B (enExample)
WO (1) WO2009141775A1 (enExample)

Families Citing this family (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4643453B2 (ja) 2006-01-10 2011-03-02 株式会社東芝 情報処理装置及び情報処理装置の動画像復号方法
RU2497204C2 (ru) * 2008-05-23 2013-10-27 Конинклейке Филипс Электроникс Н.В. Устройство параметрического стереофонического повышающего микширования, параметрический стереофонический декодер, устройство параметрического стереофонического понижающего микширования, параметрический стереофонический кодер
CN101826326B (zh) * 2009-03-04 2012-04-04 华为技术有限公司 一种立体声编码方法、装置和编码器
KR20110018107A (ko) * 2009-08-17 2011-02-23 삼성전자주식회사 레지듀얼 신호 인코딩 및 디코딩 방법 및 장치
CA2775828C (en) * 2009-09-29 2016-03-29 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio signal decoder, audio signal encoder, method for providing an upmix signal representation, method for providing a downmix signal representation, computer program and bitstream using a common inter-object-correlation parameter value
TWI444989B (zh) * 2010-01-22 2014-07-11 Dolby Lab Licensing Corp 針對改良多通道上混使用多通道解相關之技術
BR112012021369B1 (pt) * 2010-02-24 2021-11-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Aparelho para gerar um sinal downmix intensificado e método para gerar um sinal downmix intensificado
ES2656815T3 (es) 2010-03-29 2018-02-28 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung Procesador de audio espacial y procedimiento para proporcionar parámetros espaciales en base a una señal de entrada acústica
IL286761B (en) * 2010-04-09 2022-09-01 Dolby Int Ab An uplink mixer is active in predictive or non-predictive mode
EP2375409A1 (en) * 2010-04-09 2011-10-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder, audio decoder and related methods for processing multi-channel audio signals using complex prediction
AU2016222372B2 (en) * 2010-04-09 2018-06-28 Dolby International Ab Mdct-based complex prediction stereo coding
RU2541864C2 (ru) 2010-04-13 2015-02-20 Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. Аудио или видео кодер, аудио или видео и относящиеся к ним способы для обработки многоканальных аудио или видеосигналов с использованием переменного направления предсказания
CN102314882B (zh) * 2010-06-30 2012-10-17 华为技术有限公司 声音信号通道间延时估计的方法及装置
JP2012100241A (ja) 2010-10-05 2012-05-24 Panasonic Corp 画像編集装置、画像編集方法、及び、そのプログラム
FR2966634A1 (fr) * 2010-10-22 2012-04-27 France Telecom Codage/decodage parametrique stereo ameliore pour les canaux en opposition de phase
US8654984B2 (en) * 2011-04-26 2014-02-18 Skype Processing stereophonic audio signals
WO2013186343A2 (en) 2012-06-14 2013-12-19 Dolby International Ab Smooth configuration switching for multichannel audio
JP6133422B2 (ja) 2012-08-03 2017-05-24 フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン マルチチャネルをダウンミックス／アップミックスする場合のため一般化された空間オーディオオブジェクト符号化パラメトリック概念のデコーダおよび方法
ES2769845T3 (es) * 2013-01-08 2020-06-29 Dolby Int Ab Predicción basada en modelo en un banco de filtros
EP3017446B1 (en) 2013-07-05 2021-08-25 Dolby International AB Enhanced soundfield coding using parametric component generation
EP2830053A1 (en) * 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Multi-channel audio decoder, multi-channel audio encoder, methods and computer program using a residual-signal-based adjustment of a contribution of a decorrelated signal
EP2830051A3 (en) 2013-07-22 2015-03-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder, audio decoder, methods and computer program using jointly encoded residual signals
KR101461110B1 (ko) * 2013-09-06 2014-11-12 광주과학기술원 스테레오 확장장치 및 스테레오 확장방법
KR102244379B1 (ko) 2013-10-21 2021-04-26 돌비 인터네셔널 에이비 오디오 신호들의 파라메트릭 재구성
AU2014339065B2 (en) 2013-10-21 2017-04-20 Dolby International Ab Decorrelator structure for parametric reconstruction of audio signals
CN103700372B (zh) * 2013-12-30 2016-10-05 北京大学 一种基于正交解相关技术的参数立体声编码、解码方法
EP3213323B1 (en) * 2014-10-31 2018-12-12 Dolby International AB Parametric encoding and decoding of multichannel audio signals
AU2017208576B2 (en) * 2016-01-22 2018-10-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatuses and methods for encoding or decoding an audio multi-channel signal using spectral-domain resampling
US9978381B2 (en) * 2016-02-12 2018-05-22 Qualcomm Incorporated Encoding of multiple audio signals
US10224042B2 (en) * 2016-10-31 2019-03-05 Qualcomm Incorporated Encoding of multiple audio signals
AU2017357452B2 (en) 2016-11-08 2020-12-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Downmixer and method for downmixing at least two channels and multichannel encoder and multichannel decoder
PT3539125T (pt) 2016-11-08 2023-01-27 Fraunhofer Ges Forschung Aparelho e método para codificar ou descodificar um sinal multicanal utilizando um ganho side e um ganho residual
JP7076824B2 (ja) * 2017-01-04 2022-05-30 ザット コーポレイション 複数のオーディオ強調モードに構成可能なシステム
US10877192B2 (en) 2017-04-18 2020-12-29 Saudi Arabian Oil Company Method of fabricating smart photonic structures for material monitoring
US10401155B2 (en) 2017-05-12 2019-09-03 Saudi Arabian Oil Company Apparatus and method for smart material analysis
ES3031961T3 (en) 2017-07-28 2025-07-14 Fraunhofer Ges Forschung Apparatus for decoding an encoded multichannel signal using a filling signal generated by a broad band filter
CN117133297A (zh) * 2017-08-10 2023-11-28 华为技术有限公司 时域立体声参数的编码方法和相关产品
CN114005455A (zh) * 2017-08-10 2022-02-01 华为技术有限公司 时域立体声编解码方法和相关产品
CN114898761A (zh) 2017-08-10 2022-08-12 华为技术有限公司 立体声信号编解码方法及装置
KR102697685B1 (ko) 2017-12-19 2024-08-23 돌비 인터네셔널 에이비 통합 음성 및 오디오 디코딩 및 인코딩 qmf 기반 고조파 트랜스포저 개선을 위한 방법, 장치 및 시스템
TWI812658B (zh) 2017-12-19 2023-08-21 瑞典商都比國際公司 用於統一語音及音訊之解碼及編碼去關聯濾波器之改良之方法、裝置及系統
BR112020012648A2 (pt) 2017-12-19 2020-12-01 Dolby International Ab métodos e sistemas de aparelhos para aprimoramentos de decodificação de fala e áudio unificados
WO2019193173A1 (en) * 2018-04-05 2019-10-10 Telefonaktiebolaget Lm Ericsson (Publ) Truncateable predictive coding
TWI714046B (zh) 2018-04-05 2020-12-21 弗勞恩霍夫爾協會 用於估計聲道間時間差的裝置、方法或計算機程式
JP7407110B2 (ja) 2018-07-03 2023-12-28 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 符号化装置及び符号化方法
US10841689B2 (en) * 2018-10-02 2020-11-17 Harman International Industries, Incorporated Loudspeaker and tower configuration
MX2021006572A (es) 2018-12-07 2021-08-11 Fraunhofer Ges Forschung Aparato, metodo y programa de computadora para codificacion, decodificacion, procesamiento de escenas y otros procedimientos relacionados con codificacion de audio espacial basada en dirac que utiliza generadores de componentes de bajo, medio y alto orden.
CN114270437B (zh) * 2019-06-14 2025-05-30 弗劳恩霍夫应用研究促进协会 参数编码与解码
US12170091B2 (en) * 2020-03-09 2024-12-17 Nippon Telegraph And Telephone Corporation Sound signal encoding method, sound signal decoding method, sound signal encoding apparatus, sound signal decoding apparatus, program, and recording medium
CN120526780A (zh) * 2020-03-09 2025-08-22 日本电信电话株式会社 声音信号缩混方法、编码方法、缩混装置及程序
US12374343B2 (en) * 2020-03-09 2025-07-29 Nippon Telegraph And Telephone Corporation Sound signal encoding method, sound signal decoding method, sound signal encoding apparatus, sound signal decoding apparatus, program, and recording medium
WO2021181746A1 (ja) * 2020-03-09 2021-09-16 日本電信電話株式会社 音信号ダウンミックス方法、音信号符号化方法、音信号ダウンミックス装置、音信号符号化装置、プログラム及び記録媒体
CN120898244A (zh) * 2023-04-13 2025-11-04 奥兰治 用于缩减立体声音频信号声道的优化处理
FR3147898A1 (fr) * 2023-04-13 2024-10-18 Orange Traitement optimisé de réduction de canaux d’un signal audio stéréophonique

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5434948A (en) * 1989-06-15 1995-07-18 British Telecommunications Public Limited Company Polyphonic coding
GB8913758D0 (en) 1989-06-15 1989-08-02 British Telecomm Polyphonic coding
US5488665A (en) * 1993-11-23 1996-01-30 At&T Corp. Multi-channel perceptual audio compression system with encoding mode switching among matrixed channels
KR101016251B1 (ko) * 2002-04-10 2011-02-25 코닌클리케 필립스 일렉트로닉스 엔.브이. 스테레오 신호의 코딩
BRPI0304541B1 (pt) * 2002-04-22 2017-07-04 Koninklijke Philips N. V. Method and arrangement for synthesizing a first and a second output sign from an input sign, and, device for providing a decoded audio signal
SE527670C2 (sv) * 2003-12-19 2006-05-09 Ericsson Telefon Ab L M Naturtrogenhetsoptimerad kodning med variabel ramlängd
JP2007524124A (ja) * 2004-02-16 2007-08-23 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 トランスコーダ及びそのための符号変換方法
MXPA06011359A (es) * 2004-04-05 2007-01-16 Koninkl Philips Electronics Nv Codificador de canales multiples.
US7391870B2 (en) * 2004-07-09 2008-06-24 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E V Apparatus and method for generating a multi-channel output signal
SE0402650D0 (sv) * 2004-11-02 2004-11-02 Coding Tech Ab Improved parametric stereo compatible coding of spatial audio
JP2008519306A (ja) 2004-11-04 2008-06-05 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 信号の組のエンコード及びデコード
US8340306B2 (en) 2004-11-30 2012-12-25 Agere Systems Llc Parametric coding of spatial audio with object-based side information
US7573912B2 (en) * 2005-02-22 2009-08-11 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschunng E.V. Near-transparent or transparent multi-channel encoder/decoder scheme
US7751572B2 (en) 2005-04-15 2010-07-06 Dolby International Ab Adaptive residual audio coding
EP1905006B1 (en) 2005-07-19 2013-09-04 Koninklijke Philips Electronics N.V. Generation of multi-channel audio signals
KR100923156B1 (ko) * 2006-05-02 2009-10-23 한국전자통신연구원 멀티채널 오디오 인코딩 및 디코딩 시스템 및 방법
US8619998B2 (en) * 2006-08-07 2013-12-31 Creative Technology Ltd Spatial audio enhancement processing method and apparatus
US8027479B2 (en) * 2006-06-02 2011-09-27 Coding Technologies Ab Binaural multi-channel decoder in the context of non-energy conserving upmix rules
ES2378734T3 (es) * 2006-10-16 2012-04-17 Dolby International Ab Codificación mejorada y representación de parámetros de codificación de objetos de mezcla descendente multicanal
US8200351B2 (en) * 2007-01-05 2012-06-12 STMicroelectronics Asia PTE., Ltd. Low power downmix energy equalization in parametric stereo encoders
EP2137725B1 (en) * 2007-04-26 2014-01-08 Dolby International AB Apparatus and method for synthesizing an output signal
EP2023600A1 (en) 2007-07-27 2009-02-11 Thomson Licensing Method of color mapping from non-convex source gamut into non-convex target gamut
RU2497204C2 (ru) * 2008-05-23 2013-10-27 Конинклейке Филипс Электроникс Н.В. Устройство параметрического стереофонического повышающего микширования, параметрический стереофонический декодер, устройство параметрического стереофонического понижающего микширования, параметрический стереофонический кодер

Also Published As

Publication number Publication date
BR122020009727B1 (pt) 2021-04-06
EP2283483B1 (en) 2013-03-13
US9591425B2 (en) 2017-03-07
US20190058960A1 (en) 2019-02-21
US20140321652A1 (en) 2014-10-30
US20170134875A1 (en) 2017-05-11
CN102037507B (zh) 2013-02-06
US20240121567A1 (en) 2024-04-11
JP2011522472A (ja) 2011-07-28
BRPI0908630A8 (pt) 2017-12-12
BRPI0908630B1 (pt) 2020-09-15
BR122020009732B1 (pt) 2021-01-19
US10136237B2 (en) 2018-11-20
TW201011736A (en) 2010-03-16
US11019445B2 (en) 2021-05-25
US8811621B2 (en) 2014-08-19
US20210274302A1 (en) 2021-09-02
US20110096932A1 (en) 2011-04-28
JP5122681B2 (ja) 2013-01-16
RU2497204C2 (ru) 2013-10-27
TWI484477B (zh) 2015-05-11
CN102037507A (zh) 2011-04-27
RU2010152580A (ru) 2012-06-27
EP2283483A1 (en) 2011-02-16
KR20110020846A (ko) 2011-03-03
BRPI0908630A2 (pt) 2017-10-03
KR101629862B1 (ko) 2016-06-24
US12192734B2 (en) 2025-01-07
WO2009141775A1 (en) 2009-11-26
US11871205B2 (en) 2024-01-09

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