BRPI0517949A - dispositivos de codificação, de conversão e de decodificação, sistema de áudio, métodos para codificar um conjunto de sinais de entrada, para converter um sinal dominante e para decodificar um sinal de entrada, e, produto de programa de computador - Google Patents
dispositivos de codificação, de conversão e de decodificação, sistema de áudio, métodos para codificar um conjunto de sinais de entrada, para converter um sinal dominante e para decodificar um sinal de entrada, e, produto de programa de computadorInfo
- Publication number
- BRPI0517949A BRPI0517949A BRPI0517949-1A BRPI0517949A BRPI0517949A BR PI0517949 A BRPI0517949 A BR PI0517949A BR PI0517949 A BRPI0517949 A BR PI0517949A BR PI0517949 A BRPI0517949 A BR PI0517949A
- Authority
- BR
- Brazil
- Prior art keywords
- signal
- residual signal
- dominant
- decoding
- encoding
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 4
- 238000004590 computer program Methods 0.000 title 1
- 230000002238 attenuated effect Effects 0.000 abstract 3
- 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
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
DISPOSITIVOS DE CODIFICAçãO, DE CONVERSãO E DE DECODIFICAçãO, SISTEMA DE áUDIO, MéTODOS PARA CODIFICAR UM CONJUNTO DE SiNAIS DE ENTRADA, PARA CONVERTER UM SINAL DOMINANTE E PARA DECODIFICAR UM SINAL DE ENTRADA, E, PRODUTO DE PROGRAMA DE COMPUTADOR. Um dispositivo de codificação (1) e método convertem um conjunto de sinais (1, r) em um sinal dominante (m) contendo a maior parte da energia de sinal, um sinal residual (S) contendo o restante da energia de sinal, e parâmetros de sinal (IID, ICC) associados à conversão. O sinal dominante (m) e partes selecionadas do sinal residual (S) são codificados. Selecionar partes do sinal residual envolve um sinal residual (S') passar partes perceptualmente relevantes do sinal residual (S), atenuar partes perceptualmente menos relevantes do sinal residual e suprimir as partes menos relevantes do sinal residual. Um dispositivo de decodificação associado (2) e método, decodificam o sinal dominante codificado e o sinal residual codificado, de modo a produzir um sinal dominante decodificado (m '~u~) e um sinal residual modificado (S' ~mod~) respectivamente. Um sinal residual sintético (S '~syn~) é derivado do sinal dominante decodificado (m '~u~) e é atenuado de modo a produzir um sinal residual sintético atenuado (S' ~syn~,~mod~). O sinal residual sintético atenuado (S' ~syn~,~mod~) e o sinal residual decodificado (S ~mod~) são combinados para produzir um sinal residual reconstruído (S'). O sinal dominante decodificado (m') e o sinal residual reconstruído (S') são então convertidos em um conjunto de sinais de saída (l',r').
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 (2)
| Publication Number | Publication Date |
|---|---|
| BRPI0517949A true BRPI0517949A (pt) | 2008-10-21 |
| BRPI0517949B1 BRPI0517949B1 (pt) | 2019-09-03 |
Family
ID=35530914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BRPI0517949A BRPI0517949B1 (pt) | 2004-11-04 | 2005-10-31 | dispositivo de conversão para converter um sinal dominante, método de conversão de um sinal dominante, e meio não transitório legível por computador |
Country Status (5)
| Country | Link |
|---|---|
| US (3) | US7835918B2 (pt) |
| JP (1) | JP2008519306A (pt) |
| BR (1) | BRPI0517949B1 (pt) |
| MX (1) | MX2007005261A (pt) |
| WO (1) | WO2006048815A1 (pt) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BRPI0509108B1 (pt) * | 2004-04-05 | 2019-11-19 | Koninklijke Philips Nv | método para codificar uma pluralidade de sinais de entrada, codificador para codificar uma pluralidade de sinais de entrada, método de decodificar dados, e decodificador |
| US7649135B2 (en) * | 2005-02-10 | 2010-01-19 | Koninklijke Philips Electronics N.V. | Sound synthesis |
| EP1866911B1 (en) * | 2005-03-30 | 2010-06-09 | Koninklijke Philips Electronics N.V. | Scalable multi-channel audio coding |
| JP5122681B2 (ja) | 2008-05-23 | 2013-01-16 | 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 | パラメトリックステレオアップミクス装置、パラメトリックステレオデコーダ、パラメトリックステレオダウンミクス装置、及びパラメトリックステレオエンコーダ |
| CN102084418B (zh) * | 2008-07-01 | 2013-03-06 | 诺基亚公司 | 用于调整多通道音频信号的空间线索信息的设备和方法 |
| 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 |
| CA3057366C (en) | 2009-03-17 | 2020-10-27 | 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 |
| JP5809066B2 (ja) * | 2010-01-14 | 2015-11-10 | 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Ｐａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ | 音声符号化装置および音声符号化方法 |
| WO2011095913A1 (en) * | 2010-02-02 | 2011-08-11 | Koninklijke Philips Electronics N.V. | Spatial sound reproduction |
| CA2793140C (en) | 2010-04-09 | 2016-05-31 | Dolby International Ab | Mdct-based complex prediction stereo coding |
| 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 |
| BR122021009022B1 (pt) | 2013-04-05 | 2022-08-16 | Dolby International Ab | Método de decodificação para decodificar dois sinais de áudio, mídia legível por computador, e decodificador para decodificar dois sinais de áudio |
| 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 |
| EP3776546B1 (en) * | 2018-04-05 | 2022-01-19 | 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)
| 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 |
| 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 |
| 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 |
| WO2004086817A2 (en) * | 2003-03-24 | 2004-10-07 | Koninklijke Philips Electronics N.V. | 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 |
| BRPI0509108B1 (pt) | 2004-04-05 | 2019-11-19 | Koninklijke Philips Nv | método para codificar uma pluralidade de sinais de entrada, codificador para codificar uma pluralidade de sinais de entrada, método de decodificar dados, e decodificador |
| 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 |
-
2005
- 2005-10-31 WO PCT/IB2005/053548 patent/WO2006048815A1/en active Application Filing
- 2005-10-31 US US11/718,239 patent/US7835918B2/en active Active
- 2005-10-31 BR BRPI0517949A patent/BRPI0517949B1/pt active IP Right Grant
- 2005-10-31 MX MX2007005261A patent/MX2007005261A/es not_active Application Discontinuation
- 2005-10-31 JP JP2007539672A patent/JP2008519306A/ja active Pending
-
2010
- 2010-10-08 US US12/900,733 patent/US8010373B2/en active Active
- 2010-10-08 US US12/900,722 patent/US8170871B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US7835918B2 (en) | 2010-11-16 |
| WO2006048815A1 (en) | 2006-05-11 |
| US20110082699A1 (en) | 2011-04-07 |
| US20090083040A1 (en) | 2009-03-26 |
| BRPI0517949B1 (pt) | 2019-09-03 |
| JP2008519306A (ja) | 2008-06-05 |
| MX2007005261A (es) | 2007-07-09 |
| US8170871B2 (en) | 2012-05-01 |
| US20110082700A1 (en) | 2011-04-07 |
| US8010373B2 (en) | 2011-08-30 |
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Legal Events
| Date | Code | Title | Description |
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| B11A | Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing | ||
| B04C | Request for examination: application reinstated [chapter 4.3 patent gazette] | ||
| B08F | Application fees: application dismissed [chapter 8.6 patent gazette] |
Free format text: REFERENTE AS 3A E 4A ANUIDADES. |
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| B08G | Application fees: restoration [chapter 8.7 patent gazette] | ||
| B25D | Requested change of name of applicant approved |
Owner name: KONINKLIJKE PHILIPS N. V. (NL) |
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| B25G | Requested change of headquarter approved |
Owner name: KONINKLIJKE PHILIPS N. V. (NL) |
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| B06T | Formal requirements before examination [chapter 6.20 patent gazette] | ||
| B15K | Others concerning applications: alteration of classification |
Ipc: G10L 19/008 (2013.01) |
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| B06F | Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette] | ||
| B06A | Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette] | ||
| B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
| B16A | Patent or certificate of addition of invention granted |
Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 03/09/2019, OBSERVADAS AS CONDICOES LEGAIS. (CO) 10 (DEZ) ANOS CONTADOS A PARTIR DE 03/09/2019, OBSERVADAS AS CONDICOES LEGAIS |