BRPI0821091A2 - Codificação/decodificação por transformada, com janelas adaptativas - Google Patents
Codificação/decodificação por transformada, com janelas adaptativasInfo
- Publication number
- BRPI0821091A2 BRPI0821091A2 BRPI0821091-8A BRPI0821091A BRPI0821091A2 BR PI0821091 A2 BRPI0821091 A2 BR PI0821091A2 BR PI0821091 A BRPI0821091 A BR PI0821091A BR PI0821091 A2 BRPI0821091 A2 BR PI0821091A2
- Authority
- BR
- Brazil
- Prior art keywords
- decoding
- transform encoding
- adaptive windows
- adaptive
- windows
- Prior art date
Links
- 230000003044 adaptive effect Effects 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
-
- 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
- G10L19/0212—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 using orthogonal transformation
-
- 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
- G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0760258 | 2007-12-21 | ||
FR0760258 | 2007-12-21 | ||
PCT/FR2008/052286 WO2009081003A1 (fr) | 2007-12-21 | 2008-12-11 | Codage/decodage par transformee, a fenetres adaptatives |
Publications (2)
Publication Number | Publication Date |
---|---|
BRPI0821091A2 true BRPI0821091A2 (pt) | 2015-06-16 |
BRPI0821091B1 BRPI0821091B1 (pt) | 2020-11-10 |
Family
ID=39689331
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0821091-8A BRPI0821091B1 (pt) | 2007-12-21 | 2008-12-11 | processo e dispositivo de codificação/decodificação por transformada com janelas adaptativas, e memória legível por computador |
Country Status (9)
Country | Link |
---|---|
US (1) | US8253609B2 (pt) |
EP (1) | EP2232489B1 (pt) |
JP (1) | JP5328804B2 (pt) |
KR (1) | KR101408183B1 (pt) |
CN (1) | CN101952888B (pt) |
BR (1) | BRPI0821091B1 (pt) |
ES (1) | ES2666719T3 (pt) |
RU (1) | RU2488898C2 (pt) |
WO (1) | WO2009081003A1 (pt) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2977439A1 (fr) * | 2011-06-28 | 2013-01-04 | France Telecom | Fenetres de ponderation en codage/decodage par transformee avec recouvrement, optimisees en retard. |
FR2977969A1 (fr) * | 2011-07-12 | 2013-01-18 | France Telecom | Adaptation de fenetres de ponderation d'analyse ou de synthese pour un codage ou decodage par transformee |
EP2665208A1 (en) * | 2012-05-14 | 2013-11-20 | Thomson Licensing | Method and apparatus for compressing and decompressing a Higher Order Ambisonics signal representation |
KR20150032614A (ko) * | 2012-06-04 | 2015-03-27 | 삼성전자주식회사 | 오디오 부호화방법 및 장치, 오디오 복호화방법 및 장치, 및 이를 채용하는 멀티미디어 기기 |
KR101831286B1 (ko) * | 2013-08-23 | 2018-02-22 | 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에.베. | 엘리어싱 오류 신호를 사용하여 오디오 신호를 처리하기 위한 장치 및 방법 |
US10224042B2 (en) * | 2016-10-31 | 2019-03-05 | Qualcomm Incorporated | Encoding of multiple audio signals |
CN113630104B (zh) * | 2021-08-18 | 2022-08-23 | 杭州电子科技大学 | 图滤波器的滤波器组频率选择性误差交替优化设计方法 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3093178B2 (ja) * | 1989-01-27 | 2000-10-03 | ドルビー・ラボラトリーズ・ライセンシング・コーポレーション | 高品質オーディオ用低ビットレート変換エンコーダ及びデコーダ |
CN1062963C (zh) * | 1990-04-12 | 2001-03-07 | 多尔拜实验特许公司 | 用于产生高质量声音信号的解码器和编码器 |
US5848391A (en) * | 1996-07-11 | 1998-12-08 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Method subband of coding and decoding audio signals using variable length windows |
US5913190A (en) * | 1997-10-17 | 1999-06-15 | Dolby Laboratories Licensing Corporation | Frame-based audio coding with video/audio data synchronization by audio sample rate conversion |
US5903872A (en) * | 1997-10-17 | 1999-05-11 | Dolby Laboratories Licensing Corporation | Frame-based audio coding with additional filterbank to attenuate spectral splatter at frame boundaries |
US5899969A (en) * | 1997-10-17 | 1999-05-04 | Dolby Laboratories Licensing Corporation | Frame-based audio coding with gain-control words |
EP1386312B1 (en) * | 2001-05-10 | 2008-02-20 | Dolby Laboratories Licensing Corporation | Improving transient performance of low bit rate audio coding systems by reducing pre-noise |
US6963842B2 (en) * | 2001-09-05 | 2005-11-08 | Creative Technology Ltd. | Efficient system and method for converting between different transform-domain signal representations |
US7302111B2 (en) * | 2001-09-12 | 2007-11-27 | Micronic Laser Systems A.B. | Graphics engine for high precision lithography |
CN1288622C (zh) * | 2001-11-02 | 2006-12-06 | 松下电器产业株式会社 | 编码设备和解码设备 |
JP3881943B2 (ja) * | 2002-09-06 | 2007-02-14 | 松下電器産業株式会社 | 音響符号化装置及び音響符号化方法 |
US7876966B2 (en) * | 2003-03-11 | 2011-01-25 | Spyder Navigations L.L.C. | Switching between coding schemes |
FR2911228A1 (fr) * | 2007-01-05 | 2008-07-11 | France Telecom | Codage par transformee, utilisant des fenetres de ponderation et a faible retard. |
EP2107556A1 (en) * | 2008-04-04 | 2009-10-07 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio transform coding using pitch correction |
MY159110A (en) * | 2008-07-11 | 2016-12-15 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E V | Audio encoder and decoder for encoding and decoding audio samples |
US8457975B2 (en) * | 2009-01-28 | 2013-06-04 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Audio decoder, audio encoder, methods for decoding and encoding an audio signal and computer program |
-
2008
- 2008-12-11 EP EP08865193.0A patent/EP2232489B1/fr active Active
- 2008-12-11 RU RU2010130311/08A patent/RU2488898C2/ru active
- 2008-12-11 ES ES08865193.0T patent/ES2666719T3/es active Active
- 2008-12-11 US US12/809,666 patent/US8253609B2/en active Active
- 2008-12-11 JP JP2010538857A patent/JP5328804B2/ja active Active
- 2008-12-11 BR BRPI0821091-8A patent/BRPI0821091B1/pt active IP Right Grant
- 2008-12-11 KR KR1020107016422A patent/KR101408183B1/ko active IP Right Grant
- 2008-12-11 WO PCT/FR2008/052286 patent/WO2009081003A1/fr active Application Filing
- 2008-12-11 CN CN2008801273013A patent/CN101952888B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
JP2011507440A (ja) | 2011-03-03 |
CN101952888B (zh) | 2013-10-09 |
EP2232489A1 (fr) | 2010-09-29 |
RU2488898C2 (ru) | 2013-07-27 |
JP5328804B2 (ja) | 2013-10-30 |
ES2666719T3 (es) | 2018-05-07 |
CN101952888A (zh) | 2011-01-19 |
RU2010130311A (ru) | 2012-01-27 |
KR20110111231A (ko) | 2011-10-10 |
US8253609B2 (en) | 2012-08-28 |
WO2009081003A1 (fr) | 2009-07-02 |
US20100283639A1 (en) | 2010-11-11 |
KR101408183B1 (ko) | 2014-06-19 |
BRPI0821091B1 (pt) | 2020-11-10 |
EP2232489B1 (fr) | 2018-02-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B15K | Others concerning applications: alteration of classification |
Ipc: H04N 19/60 (2014.01), G10L 19/02 (2013.01), G10L 1 |
|
B06F | Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette] | ||
B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] |
Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 10/11/2020, OBSERVADAS AS CONDICOES LEGAIS. |