BRPI0509108A - método e codificador para codificar uma pluralidade de sinais de entrada para gerar dados codificados correspondentes, método e decodificador para decodificar dados codificados para regenerar representações correspondentes de uma pluralidade de sinais de entrada, dados codificados, e, software - Google Patents
método e codificador para codificar uma pluralidade de sinais de entrada para gerar dados codificados correspondentes, método e decodificador para decodificar dados codificados para regenerar representações correspondentes de uma pluralidade de sinais de entrada, dados codificados, e, softwareInfo
- Publication number
- BRPI0509108A BRPI0509108A BRPI0509108-0A BRPI0509108A BRPI0509108A BR PI0509108 A BRPI0509108 A BR PI0509108A BR PI0509108 A BRPI0509108 A BR PI0509108A BR PI0509108 A BRPI0509108 A BR PI0509108A
- Authority
- BR
- Brazil
- Prior art keywords
- encoded data
- signals
- input signals
- parameters
- generate
- Prior art date
Links
Classifications
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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
- G10L19/02—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
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
-
- 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
-
- 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)
- Multimedia (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Mathematical Physics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Stereophonic System (AREA)
Abstract
MéTODO E CODIFICADOR PARA CODIFICAR UMA PLURALIDADE DE SINAIS DE ENTRADA PARA GERAR DADOS CODIFICADOS CORRESPONDENTES, MéTODO E DECODIFICADOR PARA DECODIFICAR DADOS CODIFICADOS PARA REGENERAR REPRESENTAçõES CORRESPONDENTES DE UMA PLURALIDADE DE SINAIS DE ENTRADA, DADOS CODIFICADOS, E, SOFTWARE Um método para codificar sinais de entrada (1, r) para gerar dados codificados (100) é provido. O método envolve processar os sinais de entrada (1, r) para determinar primeiros parâmetros (<sym>~ 1~, <sym>~ 2~) descrevendo diferença de fase relativa e diferença temporal entre os sinais (1, r), e aplicar estes primeiros parâmetros (<sym>~ 1~, <sym>~ 2~) para processar os sinais de entrada para gerar sinais intermediários. O método envolve processar os sinais intermediários para determinar segundos parâmetros (<244>; IID, p) descrevendo rotação angular dos primeiros sinais intermediários para gerar um sinal dominante (m) e um sinal residual (2), o sinal dominante (m) tendo uma magnitude ou energia maior do que aquela do sinal residual (s). Estes segundos parâmetros são aplicáveis para processar os sinais intermediários para gerar os sinais dominante (m) e residual (s). O método também envolve quantizar os primeiros parâmetros, os segundos parâmetros, e sinais dominante e residual (m, s) para gerar dados quantizados correspondentes para multiplexação subseqüente para gerar os dados codificados (100).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04101405 | 2004-04-05 | ||
| EP04103168 | 2004-07-05 | ||
| PCT/IB2005/051058 WO2005098825A1 (en) | 2004-04-05 | 2005-03-29 | Stereo coding and decoding methods and apparatuses thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| BRPI0509108A true BRPI0509108A (pt) | 2007-08-28 |
| BRPI0509108B1 BRPI0509108B1 (pt) | 2019-11-19 |
Family
ID=34961999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BRPI0509108-0A BRPI0509108B1 (pt) | 2004-04-05 | 2005-03-29 | método para codificar uma pluralidade de sinais de entrada, codificador para codificar uma pluralidade de sinais de entrada, método de decodificar dados, e decodificador |
Country Status (13)
| Country | Link |
|---|---|
| US (2) | US7646875B2 (pt) |
| EP (3) | EP1735778A1 (pt) |
| JP (1) | JP5032978B2 (pt) |
| KR (1) | KR101135726B1 (pt) |
| CN (2) | CN101887726B (pt) |
| BR (1) | BRPI0509108B1 (pt) |
| DK (1) | DK3561810T3 (pt) |
| ES (1) | ES2945463T3 (pt) |
| MX (1) | MXPA06011396A (pt) |
| PL (1) | PL3561810T3 (pt) |
| RU (1) | RU2392671C2 (pt) |
| TW (1) | TWI387351B (pt) |
| WO (1) | WO2005098825A1 (pt) |
Families Citing this family (57)
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| 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 |
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| EP1735778A1 (en) * | 2004-04-05 | 2006-12-27 | Koninklijke Philips Electronics N.V. | Stereo coding and decoding methods and apparatuses thereof |
| MX2007005261A (es) * | 2004-11-04 | 2007-07-09 | Koninkl Philips Electronics Nv | Codificacion y descodificacion de un conjunto de senales. |
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-
2005
- 2005-03-29 EP EP05718587A patent/EP1735778A1/en not_active Withdrawn
- 2005-03-29 EP EP19167336.7A patent/EP3561810B1/en not_active Expired - Lifetime
- 2005-03-29 PL PL19167336.7T patent/PL3561810T3/pl unknown
- 2005-03-29 MX MXPA06011396A patent/MXPA06011396A/es active IP Right Grant
- 2005-03-29 EP EP08153026.3A patent/EP1944758A3/en not_active Withdrawn
- 2005-03-29 DK DK19167336.7T patent/DK3561810T3/da active
- 2005-03-29 KR KR1020067020275A patent/KR101135726B1/ko not_active Expired - Lifetime
- 2005-03-29 JP JP2007506882A patent/JP5032978B2/ja not_active Expired - Lifetime
- 2005-03-29 RU RU2006139036/09A patent/RU2392671C2/ru active
- 2005-03-29 CN CN2010101493135A patent/CN101887726B/zh not_active Expired - Lifetime
- 2005-03-29 WO PCT/IB2005/051058 patent/WO2005098825A1/en not_active Ceased
- 2005-03-29 BR BRPI0509108-0A patent/BRPI0509108B1/pt active IP Right Grant
- 2005-03-29 ES ES19167336T patent/ES2945463T3/es not_active Expired - Lifetime
- 2005-03-29 CN CN2005800121024A patent/CN1973320B/zh not_active Expired - Lifetime
- 2005-03-29 US US10/599,564 patent/US7646875B2/en not_active Expired - Lifetime
- 2005-04-01 TW TW094110557A patent/TWI387351B/zh not_active IP Right Cessation
-
2009
- 2009-11-23 US US12/623,676 patent/US8254585B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| BRPI0509108B1 (pt) | 2019-11-19 |
| US7646875B2 (en) | 2010-01-12 |
| EP1944758A3 (en) | 2014-09-10 |
| US20110106540A1 (en) | 2011-05-05 |
| MXPA06011396A (es) | 2006-12-20 |
| JP2007531915A (ja) | 2007-11-08 |
| ES2945463T3 (es) | 2023-07-03 |
| US8254585B2 (en) | 2012-08-28 |
| RU2006139036A (ru) | 2008-05-20 |
| CN1973320B (zh) | 2010-12-15 |
| JP5032978B2 (ja) | 2012-09-26 |
| EP3561810B1 (en) | 2023-03-29 |
| EP1735778A1 (en) | 2006-12-27 |
| US20070171944A1 (en) | 2007-07-26 |
| CN101887726B (zh) | 2013-11-20 |
| KR101135726B1 (ko) | 2012-04-16 |
| EP1944758A2 (en) | 2008-07-16 |
| EP3561810A1 (en) | 2019-10-30 |
| TW200603637A (en) | 2006-01-16 |
| TWI387351B (zh) | 2013-02-21 |
| DK3561810T3 (da) | 2023-05-01 |
| RU2392671C2 (ru) | 2010-06-20 |
| WO2005098825A1 (en) | 2005-10-20 |
| CN101887726A (zh) | 2010-11-17 |
| PL3561810T3 (pl) | 2023-09-04 |
| KR20070001207A (ko) | 2007-01-03 |
| CN1973320A (zh) | 2007-05-30 |
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