BR122018077089B8 - decodificador de áudio - Google Patents
decodificador de áudioInfo
- Publication number
- BR122018077089B8 BR122018077089B8 BR122018077089A BR122018077089A BR122018077089B8 BR 122018077089 B8 BR122018077089 B8 BR 122018077089B8 BR 122018077089 A BR122018077089 A BR 122018077089A BR 122018077089 A BR122018077089 A BR 122018077089A BR 122018077089 B8 BR122018077089 B8 BR 122018077089B8
- Authority
- BR
- Brazil
- Prior art keywords
- inter
- sound field
- original
- build
- channel
- Prior art date
Links
- 230000002123 temporal effect Effects 0.000 abstract 3
- 230000005236 sound signal Effects 0.000 abstract 1
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
-
- 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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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Multimedia (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Stereophonic System (AREA)
- Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
Abstract
a presente invenção refere-se a certos tipos de codificadores de codificação espacial paramétrica utilizam diferenças de amplitude intercanal, diferenças de tempo intercanal e coerência ou correlação intercanal para construir um modelo paramétrico de um campo de som multicanal que é utilizado por um decodificador para construir uma aproximação do campo de som original. entretanto, tal modelo paramétrico não reconstrói o envelope temporal original dos canais do campo de som, o que foi visto como sendo extremamente importante para alguns sinais de áudio. a presente invenção proporciona a reformatação do envelope temporal de um ou mais dos canais decodificados em um sistema de codificação espacial para melhor corresponder um ou mais envelopes temporais originais.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US60483604P | 2004-08-25 | 2004-08-25 | |
US60/604,836 | 2004-08-25 | ||
PCT/US2005/029157 WO2006026161A2 (en) | 2004-08-25 | 2005-08-15 | Temporal envelope shaping for spatial audio coding using frequency domain wiener filtering |
BRPI0514650-0A BRPI0514650B1 (pt) | 2004-08-25 | 2005-08-15 | Métodos para codificação e decodificação de sinais de áudio, codificador e decodificador de sinais de áudio |
Publications (2)
Publication Number | Publication Date |
---|---|
BR122018077089B1 BR122018077089B1 (pt) | 2020-11-10 |
BR122018077089B8 true BR122018077089B8 (pt) | 2021-01-05 |
Family
ID=35636849
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR122018077099-6A BR122018077099B1 (pt) | 2004-08-25 | 2005-08-15 | método para decodificação de sinal de áudio e decodificador de sinal de áudio |
BR122018077089A BR122018077089B8 (pt) | 2004-08-25 | 2005-08-15 | decodificador de áudio |
BRPI0514650-0A BRPI0514650B1 (pt) | 2004-08-25 | 2005-08-15 | Métodos para codificação e decodificação de sinais de áudio, codificador e decodificador de sinais de áudio |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR122018077099-6A BR122018077099B1 (pt) | 2004-08-25 | 2005-08-15 | método para decodificação de sinal de áudio e decodificador de sinal de áudio |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0514650-0A BRPI0514650B1 (pt) | 2004-08-25 | 2005-08-15 | Métodos para codificação e decodificação de sinais de áudio, codificador e decodificador de sinais de áudio |
Country Status (15)
Country | Link |
---|---|
US (3) | US8255211B2 (pt) |
EP (4) | EP3940697B1 (pt) |
JP (2) | JP5038138B2 (pt) |
KR (3) | KR20120006077A (pt) |
CN (3) | CN101006494B (pt) |
AU (2) | AU2005280392B2 (pt) |
BR (3) | BR122018077099B1 (pt) |
CA (1) | CA2589623C (pt) |
ES (3) | ES2658824T3 (pt) |
IL (3) | IL181407A (pt) |
MX (1) | MX2007001948A (pt) |
MY (2) | MY151318A (pt) |
PL (3) | PL1784818T3 (pt) |
TW (3) | TWI498882B (pt) |
WO (1) | WO2006026161A2 (pt) |
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TWI396188B (zh) | 2005-08-02 | 2013-05-11 | Dolby Lab Licensing Corp | 依聆聽事件之函數控制空間音訊編碼參數的技術 |
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EP1974348B1 (en) * | 2006-01-19 | 2013-07-24 | LG Electronics, Inc. | Method and apparatus for processing a media signal |
KR20080093024A (ko) * | 2006-02-07 | 2008-10-17 | 엘지전자 주식회사 | 부호화/복호화 장치 및 방법 |
MX2008012324A (es) * | 2006-03-28 | 2008-10-10 | Fraunhofer Ges Zur Foeerderung | Metodo mejorado para la modulacion de señales en la reconstruccion de audio multicanal. |
JP5192544B2 (ja) | 2007-07-13 | 2013-05-08 | ドルビー ラボラトリーズ ライセンシング コーポレイション | 聴覚情景分析とスペクトルの歪みを用いた音響処理 |
CN101673545B (zh) * | 2008-09-12 | 2011-11-16 | 华为技术有限公司 | 一种编解码方法及装置 |
EP2214161A1 (en) * | 2009-01-28 | 2010-08-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus, method and computer program for upmixing a downmix audio signal |
US9053701B2 (en) * | 2009-02-26 | 2015-06-09 | Panasonic Intellectual Property Corporation Of America | Channel signal generation device, acoustic signal encoding device, acoustic signal decoding device, acoustic signal encoding method, and acoustic signal decoding method |
JP4932917B2 (ja) | 2009-04-03 | 2012-05-16 | 株式会社エヌ・ティ・ティ・ドコモ | 音声復号装置、音声復号方法、及び音声復号プログラム |
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US9008811B2 (en) | 2010-09-17 | 2015-04-14 | Xiph.org Foundation | Methods and systems for adaptive time-frequency resolution in digital data coding |
EP2469741A1 (en) * | 2010-12-21 | 2012-06-27 | Thomson Licensing | Method and apparatus for encoding and decoding successive frames of an ambisonics representation of a 2- or 3-dimensional sound field |
EP2661746B1 (en) * | 2011-01-05 | 2018-08-01 | Nokia Technologies Oy | Multi-channel encoding and/or decoding |
US9009036B2 (en) | 2011-03-07 | 2015-04-14 | Xiph.org Foundation | Methods and systems for bit allocation and partitioning in gain-shape vector quantization for audio coding |
US9015042B2 (en) | 2011-03-07 | 2015-04-21 | Xiph.org Foundation | Methods and systems for avoiding partial collapse in multi-block audio coding |
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MX351193B (es) | 2012-08-10 | 2017-10-04 | Fraunhofer Ges Forschung | Codificador, decodificador, sistema y metodo que emplean un concepto residual para codificar objetos de audio parametricos. |
BR112015025092B1 (pt) * | 2013-04-05 | 2022-01-11 | Dolby International Ab | Sistema de processamento de áudio e método para processar um fluxo de bits de áudio |
EP2830064A1 (en) | 2013-07-22 | 2015-01-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for decoding and encoding an audio signal using adaptive spectral tile selection |
JP6035270B2 (ja) * | 2014-03-24 | 2016-11-30 | 株式会社Nttドコモ | 音声復号装置、音声符号化装置、音声復号方法、音声符号化方法、音声復号プログラム、および音声符号化プログラム |
KR102383195B1 (ko) * | 2017-10-27 | 2022-04-08 | 프라운호퍼-게젤샤프트 추르 푀르데룽 데어 안제반텐 포르슝 에 파우 | 디코더에서의 노이즈 감쇠 |
JP7092047B2 (ja) * | 2019-01-17 | 2022-06-28 | 日本電信電話株式会社 | 符号化復号方法、復号方法、これらの装置及びプログラム |
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KR102446720B1 (ko) * | 2022-02-18 | 2022-09-26 | 오드컨셉 주식회사 | 이미지 복원 모델, 및 이미지 복원 모델의 학습 방법 |
KR102423552B1 (ko) * | 2022-02-28 | 2022-07-21 | 오드컨셉 주식회사 | 적대적 생성 신경망으로 구성된 상품 이미지 복원 및 합성 모델, 및 상품 이미지 복원 및 합성 모델의 학습 방법 |
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2005
- 2005-08-12 TW TW101147782A patent/TWI498882B/zh active
- 2005-08-12 TW TW094127540A patent/TWI393120B/zh active
- 2005-08-12 TW TW101147783A patent/TWI497485B/zh active
- 2005-08-15 BR BR122018077099-6A patent/BR122018077099B1/pt active IP Right Grant
- 2005-08-15 PL PL05786297T patent/PL1784818T3/pl unknown
- 2005-08-15 EP EP21195475.5A patent/EP3940697B1/en active Active
- 2005-08-15 BR BR122018077089A patent/BR122018077089B8/pt active IP Right Grant
- 2005-08-15 ES ES05786297.1T patent/ES2658824T3/es active Active
- 2005-08-15 CN CN2005800275874A patent/CN101006494B/zh active Active
- 2005-08-15 KR KR1020117029616A patent/KR20120006077A/ko not_active Application Discontinuation
- 2005-08-15 JP JP2007529954A patent/JP5038138B2/ja active Active
- 2005-08-15 WO PCT/US2005/029157 patent/WO2006026161A2/en active Application Filing
- 2005-08-15 CA CA2589623A patent/CA2589623C/en active Active
- 2005-08-15 MX MX2007001948A patent/MX2007001948A/es active IP Right Grant
- 2005-08-15 US US11/660,893 patent/US8255211B2/en active Active
- 2005-08-15 BR BRPI0514650-0A patent/BRPI0514650B1/pt active Search and Examination
- 2005-08-15 ES ES17193794T patent/ES2899286T3/es active Active
- 2005-08-15 KR KR1020077003692A patent/KR101253699B1/ko active IP Right Grant
- 2005-08-15 CN CN201110236398.5A patent/CN102270453B/zh active Active
- 2005-08-15 CN CN201210467810.9A patent/CN102968996B/zh active Active
- 2005-08-15 AU AU2005280392A patent/AU2005280392B2/en active Active
- 2005-08-15 EP EP05786297.1A patent/EP1784818B1/en active Active
- 2005-08-15 PL PL17193794T patent/PL3279893T3/pl unknown
- 2005-08-15 KR KR1020117011055A patent/KR101139880B1/ko active IP Right Grant
- 2005-08-15 EP EP17193794.9A patent/EP3279893B1/en active Active
- 2005-08-15 ES ES21195475T patent/ES2923661T3/es active Active
- 2005-08-15 EP EP22155826.5A patent/EP4036914A1/en active Pending
- 2005-08-15 PL PL21195475.5T patent/PL3940697T3/pl unknown
- 2005-08-23 MY MYPI20053940 patent/MY151318A/en unknown
- 2005-08-23 MY MYPI2012000244A patent/MY163042A/en unknown
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2007
- 2007-02-18 IL IL181407A patent/IL181407A/en active IP Right Grant
- 2007-07-31 US US11/888,651 patent/US7945449B2/en active Active
- 2007-07-31 US US11/888,646 patent/US20080040103A1/en not_active Abandoned
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2009
- 2009-10-12 IL IL201469A patent/IL201469A/en active IP Right Grant
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2011
- 2011-02-18 AU AU2011200680A patent/AU2011200680C1/en active Active
- 2011-07-18 IL IL214135A patent/IL214135A/en active IP Right Grant
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2012
- 2012-05-30 JP JP2012122890A patent/JP5292498B2/ja active Active
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