MX2007005262A - Codificacion y decodificacion de senales de audio de varios canales. - Google Patents
Codificacion y decodificacion de senales de audio de varios canales.Info
- Publication number
- MX2007005262A MX2007005262A MX2007005262A MX2007005262A MX2007005262A MX 2007005262 A MX2007005262 A MX 2007005262A MX 2007005262 A MX2007005262 A MX 2007005262A MX 2007005262 A MX2007005262 A MX 2007005262A MX 2007005262 A MX2007005262 A MX 2007005262A
- Authority
- MX
- Mexico
- Prior art keywords
- signal
- converting
- audio channels
- encoding
- decoding
- Prior art date
Links
- 230000005236 sound signal Effects 0.000 title 1
- 238000006243 chemical reaction Methods 0.000 abstract 2
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
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
-
- 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
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0272—Voice signal separating
- G10L21/028—Voice signal separating using properties of sound source
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Mathematical Physics (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Stereophonic System (AREA)
Abstract
Se describe un dispositivo de codificacion (1) para convertir un primer numero (M) de canales de audio de entrada en un segundo numero mas pequeno (N) de canales de audio de salida que comprende al menos una unidad de conversacion (12) para convertir una primera senal (Lf; Rf; Co) y una segunda senal (Lr; Rr; Le) en una tercera senal (L; R; C) y una cuarta senal (Ls; Rs; Cs). La tercera senal dominante contiene la mayoria de la energia de senal de las primera y segunda senales, mientras que la cuarta senal residual contiene el resto de la energia de senal. El dispositivo de codificacion esta dispuesto para usar la tercera senal (L; R; C) para producir una senal de salida y para emitir la cuarta senal (Ls; Rs; Cs). Se describe tambien un dispositivo de decodificacion (2) para convertir un primer numero (N) de canales de audio de entrada en un segundo numero mas grande (M) de canales de audio de salida que comprende al menos una unidad de conversion (24) para convertir una primera senal (L; R; C) y una segunda senal (Ld; Rd; Ld) en una tercera senal (Lf; Rf; Co) y una cuarta senal (Lr, Rr; Le). La primera senal dominante contiene la mayoria de la energia de senal de las tercera y cuarta senales, mientras que la segunda senal residual contiene el resto de la energia de senal. El dispositivo de decodificacion esta dispuesto para recibir al menos una segunda senal (Ld; Rd; Cd).
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04105527 | 2004-11-04 | ||
EP05103079 | 2005-04-18 | ||
EP05103443 | 2005-04-27 | ||
PCT/IB2005/053550 WO2006048817A1 (en) | 2004-11-04 | 2005-10-31 | Encoding and decoding of multi-channel audio signals |
Publications (1)
Publication Number | Publication Date |
---|---|
MX2007005262A true MX2007005262A (es) | 2007-07-09 |
Family
ID=35478388
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2007005262A MX2007005262A (es) | 2004-11-04 | 2005-10-31 | Codificacion y decodificacion de senales de audio de varios canales. |
Country Status (9)
Country | Link |
---|---|
US (1) | US7809580B2 (es) |
EP (1) | EP1810279B1 (es) |
JP (1) | JP5238256B2 (es) |
KR (1) | KR101183859B1 (es) |
CN (1) | CN101053017B (es) |
BR (1) | BRPI0517987B1 (es) |
MX (1) | MX2007005262A (es) |
RU (1) | RU2407068C2 (es) |
WO (1) | WO2006048817A1 (es) |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
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RU2391714C2 (ru) * | 2004-07-14 | 2010-06-10 | Конинклейке Филипс Электроникс Н.В. | Преобразование аудиоканалов |
US7649135B2 (en) * | 2005-02-10 | 2010-01-19 | Koninklijke Philips Electronics N.V. | Sound synthesis |
KR101218776B1 (ko) * | 2006-01-11 | 2013-01-18 | 삼성전자주식회사 | 다운믹스된 신호로부터 멀티채널 신호 생성방법 및 그 기록매체 |
WO2007104882A1 (fr) * | 2006-03-15 | 2007-09-20 | France Telecom | Dispositif et procede de codage par analyse en composante principale d'un signal audio multi-canal |
KR101464977B1 (ko) * | 2007-10-01 | 2014-11-25 | 삼성전자주식회사 | 메모리 관리 방법, 및 멀티 채널 데이터의 복호화 방법 및장치 |
KR101566025B1 (ko) * | 2007-10-22 | 2015-11-05 | 한국전자통신연구원 | 다객체 오디오 부호화 및 복호화 방법과 그 장치 |
KR101441897B1 (ko) | 2008-01-31 | 2014-09-23 | 삼성전자주식회사 | 잔차 신호 부호화 방법 및 장치와 잔차 신호 복호화 방법및 장치 |
KR101428487B1 (ko) * | 2008-07-11 | 2014-08-08 | 삼성전자주식회사 | 멀티 채널 부호화 및 복호화 방법 및 장치 |
EP2359608B1 (en) | 2008-12-11 | 2021-05-05 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus for generating a multi-channel audio signal |
RU2449307C2 (ru) * | 2009-04-02 | 2012-04-27 | ОАО "Научно-производственное объединение "ЛЭМЗ" | Способ обзорной импульсно-доплеровской радиолокации целей на фоне отражений от земной поверхности |
FR2954640B1 (fr) * | 2009-12-23 | 2012-01-20 | Arkamys | Procede d'optimisation de la reception stereo pour radio analogique et recepteur de radio analogique associe |
CN103733256A (zh) * | 2011-06-07 | 2014-04-16 | 三星电子株式会社 | 音频信号处理方法、音频编码设备、音频解码设备和采用所述方法的终端 |
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 |
US9098576B1 (en) | 2011-10-17 | 2015-08-04 | Google Inc. | Ensemble interest point detection for audio matching |
US8831763B1 (en) | 2011-10-18 | 2014-09-09 | Google Inc. | Intelligent interest point pruning for audio matching |
US8805560B1 (en) | 2011-10-18 | 2014-08-12 | Google Inc. | Noise based interest point density pruning |
US8886543B1 (en) | 2011-11-15 | 2014-11-11 | Google Inc. | Frequency ratio fingerprint characterization for audio matching |
JP5998467B2 (ja) * | 2011-12-14 | 2016-09-28 | 富士通株式会社 | 復号装置、復号方法、及び復号プログラム |
US9268845B1 (en) | 2012-03-08 | 2016-02-23 | Google Inc. | Audio matching using time alignment, frequency alignment, and interest point overlap to filter false positives |
US9471673B1 (en) | 2012-03-12 | 2016-10-18 | Google Inc. | Audio matching using time-frequency onsets |
US9087124B1 (en) | 2012-03-26 | 2015-07-21 | Google Inc. | Adaptive weighting of popular reference content in audio matching |
US9148738B1 (en) | 2012-03-30 | 2015-09-29 | Google Inc. | Using local gradients for pitch resistant audio matching |
JP5949270B2 (ja) | 2012-07-24 | 2016-07-06 | 富士通株式会社 | オーディオ復号装置、オーディオ復号方法、オーディオ復号用コンピュータプログラム |
MX354832B (es) * | 2013-10-21 | 2018-03-21 | Dolby Int Ab | Estructura de decorrelador para la reconstruccion parametrica de señales de audio. |
KR101453733B1 (ko) | 2014-04-07 | 2014-10-22 | 삼성전자주식회사 | 오디오 신호 처리장치 |
CN105632505B (zh) * | 2014-11-28 | 2019-12-20 | 北京天籁传音数字技术有限公司 | 主成分分析pca映射模型的编解码方法及装置 |
EP3246923A1 (en) | 2016-05-20 | 2017-11-22 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for processing a multichannel audio signal |
US10535357B2 (en) * | 2017-10-05 | 2020-01-14 | Qualcomm Incorporated | Encoding or decoding of audio signals |
US10839814B2 (en) * | 2017-10-05 | 2020-11-17 | Qualcomm Incorporated | Encoding or decoding of audio signals |
US10580420B2 (en) | 2017-10-05 | 2020-03-03 | Qualcomm Incorporated | Encoding or decoding of audio signals |
CN110556116B (zh) | 2018-05-31 | 2021-10-22 | 华为技术有限公司 | 计算下混信号和残差信号的方法和装置 |
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 |
EP4138396A4 (en) * | 2020-05-21 | 2023-07-05 | Huawei Technologies Co., Ltd. | AUDIO DATA TRANSMISSION METHOD AND DEVICE ASSOCIATED |
Family Cites Families (10)
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ES2149235T3 (es) * | 1993-01-22 | 2000-11-01 | Koninkl Philips Electronics Nv | Transmision digital en 3 canales de señales estereofonicas izquierda y derecha y una señal central. |
CA2859333A1 (en) * | 1999-04-07 | 2000-10-12 | Dolby Laboratories Licensing Corporation | Matrix improvements to lossless encoding and decoding |
JP4618873B2 (ja) | 2000-11-24 | 2011-01-26 | パナソニック株式会社 | オーディオ信号符号化方法、オーディオ信号符号化装置、音楽配信方法、および、音楽配信システム |
ES2341327T3 (es) * | 2002-04-10 | 2010-06-18 | Koninklijke Philips Electronics N.V. | Codificacion y decodificacion de señales audio multicanal. |
US20040086130A1 (en) * | 2002-05-03 | 2004-05-06 | Eid Bradley F. | Multi-channel sound processing systems |
JP4322207B2 (ja) * | 2002-07-12 | 2009-08-26 | 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 | オーディオ符号化方法 |
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 |
CN1973320B (zh) | 2004-04-05 | 2010-12-15 | 皇家飞利浦电子股份有限公司 | 立体声编码和解码的方法及其设备 |
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 |
EP1866911B1 (en) * | 2005-03-30 | 2010-06-09 | Koninklijke Philips Electronics N.V. | Scalable multi-channel audio coding |
-
2005
- 2005-10-31 EP EP05797453.7A patent/EP1810279B1/en active Active
- 2005-10-31 MX MX2007005262A patent/MX2007005262A/es active IP Right Grant
- 2005-10-31 JP JP2007539673A patent/JP5238256B2/ja active Active
- 2005-10-31 US US11/718,241 patent/US7809580B2/en active Active
- 2005-10-31 BR BRPI0517987-4A patent/BRPI0517987B1/pt active IP Right Grant
- 2005-10-31 CN CN2005800379093A patent/CN101053017B/zh active Active
- 2005-10-31 WO PCT/IB2005/053550 patent/WO2006048817A1/en active Application Filing
- 2005-10-31 KR KR1020077012575A patent/KR101183859B1/ko active IP Right Grant
- 2005-10-31 RU RU2007120528/09A patent/RU2407068C2/ru active
Also Published As
Publication number | Publication date |
---|---|
JP5238256B2 (ja) | 2013-07-17 |
EP1810279B1 (en) | 2013-12-11 |
CN101053017A (zh) | 2007-10-10 |
CN101053017B (zh) | 2012-10-10 |
JP2008519307A (ja) | 2008-06-05 |
US20090055194A1 (en) | 2009-02-26 |
BRPI0517987A (pt) | 2008-10-21 |
US7809580B2 (en) | 2010-10-05 |
BRPI0517987B1 (pt) | 2021-04-27 |
KR101183859B1 (ko) | 2012-09-19 |
BRPI0517987A8 (pt) | 2018-07-31 |
KR20070085721A (ko) | 2007-08-27 |
WO2006048817A1 (en) | 2006-05-11 |
EP1810279A1 (en) | 2007-07-25 |
RU2407068C2 (ru) | 2010-12-20 |
RU2007120528A (ru) | 2008-12-10 |
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