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MX2007005261A - Codificacion y descodificacion de un conjunto de senales. - Google Patents

Codificacion y descodificacion de un conjunto de senales.

Info

Publication number
MX2007005261A
MX2007005261A MX2007005261A MX2007005261A MX2007005261A MX 2007005261 A MX2007005261 A MX 2007005261A MX 2007005261 A MX2007005261 A MX 2007005261A MX 2007005261 A MX2007005261 A MX 2007005261A MX 2007005261 A MX2007005261 A MX 2007005261A
Authority
MX
Mexico
Prior art keywords
signal
residual signal
dominant
decoded
mod
Prior art date
Application number
MX2007005261A
Other languages
English (en)
Inventor
Erik G P Schuijers
Dirk J Breebaart
Francois P Myburg
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.)
Filing date
Publication date
Application filed by Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of MX2007005261A publication Critical patent/MX2007005261A/es

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

Se proporciona un dispositivo (1) de codificacion y metodo para convertir un conjunto de senales (1, r) en una senal (m) dominante que contiene la mayor parte de la energia de senal, una senal (s) residual que contiene el resto de la energia de senal y parametros (IID, ICC) de senal asociados con la conversion. La senal (m) dominante y las partes seleccionadas de la senal (s) residuales estan codificadas. La seleccion de las partes de la senal residual involucra una senal (s') residual que pasa por partes perceptualmente relevantes de la senal (s) residual, atenuando las partes perceptualmente menos relevantes de la senal residual y suprimiendo por lo menos partes relevantes de la senal residual. Un dispositivo (2) de descodificacion asociado y un metodo de descodificacion de la senal dominante codificada asi como la senal residual codificada de manera que produce una senal (m'u) dominante descodificada y una senal (s'mod) residual descodificada, respectivamente. Se deriva una senal residual sintetica (s'sin) de la senal (m'u) dominante descodificada y se atenua de manera que produce una senal (s'sin, mod) residual sintetica atenuada. La senal (ssin, mod) residual sintetica atenuada y la senal (s'mod) residual descodificada se combinan para producir una senal (S') residual reconstruida. La senal (m') dominante descodificada y la senal (s') residual reconstruida despues se convierten en un conjunto de senal (1', r??) de salida.
MX2007005261A 2004-11-04 2005-10-31 Codificacion y descodificacion de un conjunto de senales. MX2007005261A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP04105527 2004-11-04
EP05103082 2005-04-18
PCT/IB2005/053548 WO2006048815A1 (en) 2004-11-04 2005-10-31 Encoding and decoding a set of signals

Publications (1)

Publication Number Publication Date
MX2007005261A true MX2007005261A (es) 2007-07-09

Family

ID=35530914

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2007005261A MX2007005261A (es) 2004-11-04 2005-10-31 Codificacion y descodificacion de un conjunto de senales.

Country Status (5)

Country Link
US (3) US7835918B2 (es)
JP (1) JP2008519306A (es)
BR (1) BRPI0517949B1 (es)
MX (1) MX2007005261A (es)
WO (1) WO2006048815A1 (es)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5032978B2 (ja) * 2004-04-05 2012-09-26 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 ステレオコーディング及びデコーディングの方法及び装置
JP5063363B2 (ja) * 2005-02-10 2012-10-31 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 音声合成方法
US8036904B2 (en) * 2005-03-30 2011-10-11 Koninklijke Philips Electronics N.V. Audio encoder and method for scalable multi-channel audio coding, and an audio decoder and method for decoding said scalable multi-channel audio coding
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
ATE538469T1 (de) * 2008-07-01 2012-01-15 Nokia Corp Vorrichtung und verfahren zum justieren von räumlichen hinweisinformationen eines mehrkanaligen audiosignals
KR101428487B1 (ko) * 2008-07-11 2014-08-08 삼성전자주식회사 멀티 채널 부호화 및 복호화 방법 및 장치
JP5326465B2 (ja) 2008-09-26 2013-10-30 富士通株式会社 オーディオ復号方法、装置、及びプログラム
JP5309944B2 (ja) * 2008-12-11 2013-10-09 富士通株式会社 オーディオ復号装置、方法、及びプログラム
WO2010105926A2 (en) 2009-03-17 2010-09-23 Dolby International Ab Advanced stereo coding based on a combination of adaptively selectable left/right or mid/side stereo coding and of parametric stereo coding
KR101599884B1 (ko) * 2009-08-18 2016-03-04 삼성전자주식회사 멀티 채널 오디오 디코딩 방법 및 장치
KR101710113B1 (ko) * 2009-10-23 2017-02-27 삼성전자주식회사 위상 정보와 잔여 신호를 이용한 부호화／복호화 장치 및 방법
KR20110049068A (ko) * 2009-11-04 2011-05-12 삼성전자주식회사 멀티 채널 오디오 신호의 부호화/복호화 장치 및 방법
US20130030796A1 (en) * 2010-01-14 2013-01-31 Panasonic Corporation Audio encoding apparatus and audio encoding method
WO2011095913A1 (en) * 2010-02-02 2011-08-11 Koninklijke Philips Electronics N.V. Spatial sound reproduction
CA3105050C (en) 2010-04-09 2021-08-31 Dolby International Ab Audio upmixer operable in prediction or non-prediction mode
JP5737077B2 (ja) * 2011-08-30 2015-06-17 富士通株式会社 オーディオ符号化装置、オーディオ符号化方法及びオーディオ符号化用コンピュータプログラム
US9065576B2 (en) 2012-04-18 2015-06-23 2236008 Ontario Inc. System, apparatus and method for transmitting continuous audio data
US9560444B2 (en) * 2013-03-13 2017-01-31 Cisco Technology, Inc. Kinetic event detection in microphones
BR112015025080B1 (pt) 2013-04-05 2021-12-21 Dolby International Ab Método de decodificação e decodificador para decodificar dois sinais de áudio, método de codificação e codificador para codificar dois sinais de áudio, e meio legível não transitório
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
US10580420B2 (en) 2017-10-05 2020-03-03 Qualcomm Incorporated Encoding or decoding of audio signals
EP4636757A3 (en) 2018-04-05 2025-12-31 Telefonaktiebolaget LM Ericsson (publ) SUPPORT FOR GENERATION OF COMFORT NOISE, AND GENERATION OF COMFORT NOISE
CN110556117B (zh) 2018-05-31 2022-04-22 华为技术有限公司 立体声信号的编码方法和装置

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4827517A (en) * 1985-12-26 1989-05-02 American Telephone And Telegraph Company, At&T Bell Laboratories Digital speech processor using arbitrary excitation coding
GB8913758D0 (en) * 1989-06-15 1989-08-02 British Telecomm Polyphonic coding
US5434948A (en) * 1989-06-15 1995-07-18 British Telecommunications Public Limited Company Polyphonic coding
US5136650A (en) * 1991-01-09 1992-08-04 Lexicon, Inc. Sound reproduction
US5434989A (en) * 1991-02-19 1995-07-18 Matsushita Electric Industrial Co., Ltd. Cache memory for efficient access with address selectors
US5796849A (en) * 1994-11-08 1998-08-18 Bolt, Beranek And Newman Inc. Active noise and vibration control system accounting for time varying plant, using residual signal to create probe signal
US5771299A (en) 1996-06-20 1998-06-23 Audiologic, Inc. Spectral transposition of a digital audio signal
US5870480A (en) * 1996-07-19 1999-02-09 Lexicon Multichannel active matrix encoder and decoder with maximum lateral separation
FI113147B (fi) * 2000-09-29 2004-02-27 Nokia Corp Menetelmä ja signaalinkäsittelylaite stereosignaalien muuntamiseksi kuulokekuuntelua varten
US8605911B2 (en) * 2001-07-10 2013-12-10 Dolby International Ab Efficient and scalable parametric stereo coding for low bitrate audio coding applications
US20040086130A1 (en) * 2002-05-03 2004-05-06 Eid Bradley F. Multi-channel sound processing systems
ATE377339T1 (de) * 2002-07-12 2007-11-15 Koninkl Philips Electronics Nv Audio-kodierung
US20060171542A1 (en) * 2003-03-24 2006-08-03 Den Brinker Albertus C Coding of main and side signal representing a multichannel signal
US7330552B1 (en) * 2003-12-19 2008-02-12 Lamance Andrew Multiple positional channels from a conventional stereo signal pair
US7394903B2 (en) * 2004-01-20 2008-07-01 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Apparatus and method for constructing a multi-channel output signal or for generating a downmix signal
JP5032978B2 (ja) * 2004-04-05 2012-09-26 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 ステレオコーディング及びデコーディングの方法及び装置
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
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

Also Published As

Publication number Publication date
US8010373B2 (en) 2011-08-30
BRPI0517949B1 (pt) 2019-09-03
US20110082700A1 (en) 2011-04-07
US7835918B2 (en) 2010-11-16
WO2006048815A1 (en) 2006-05-11
US8170871B2 (en) 2012-05-01
BRPI0517949A (pt) 2008-10-21
US20110082699A1 (en) 2011-04-07
US20090083040A1 (en) 2009-03-26
JP2008519306A (ja) 2008-06-05

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