CN1781141A - 使用频谱分量耦合和频谱分量再生的改进音频编码系统和方法 - Google Patents
使用频谱分量耦合和频谱分量再生的改进音频编码系统和方法 Download PDFInfo
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- CN1781141A CN1781141A CNA200480011250XA CN200480011250A CN1781141A CN 1781141 A CN1781141 A CN 1781141A CN A200480011250X A CNA200480011250X A CN A200480011250XA CN 200480011250 A CN200480011250 A CN 200480011250A CN 1781141 A CN1781141 A CN 1781141A
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal 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
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal 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
- G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (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)
- Spectroscopy & Molecular Physics (AREA)
- Quality & Reliability (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
Description
Claims (44)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/434,449 US7318035B2 (en) | 2003-05-08 | 2003-05-08 | Audio coding systems and methods using spectral component coupling and spectral component regeneration |
US10/434,449 | 2003-05-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1781141A true CN1781141A (zh) | 2006-05-31 |
CN100394476C CN100394476C (zh) | 2008-06-11 |
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Application Number | Title | Priority Date | Filing Date |
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CNB200480011250XA Expired - Lifetime CN100394476C (zh) | 2003-05-08 | 2004-04-30 | 使用频谱分量耦合和频谱分量再生的改进音频编码系统和方法 |
Country Status (19)
Country | Link |
---|---|
US (1) | US7318035B2 (zh) |
EP (5) | EP3757994B1 (zh) |
JP (1) | JP4782685B2 (zh) |
KR (1) | KR101085477B1 (zh) |
CN (1) | CN100394476C (zh) |
AU (1) | AU2004239655B2 (zh) |
BR (1) | BRPI0410130B1 (zh) |
CA (1) | CA2521601C (zh) |
DK (1) | DK1620845T3 (zh) |
ES (2) | ES2664397T3 (zh) |
HU (1) | HUE045759T2 (zh) |
IL (1) | IL171287A (zh) |
MX (1) | MXPA05011979A (zh) |
MY (1) | MY138877A (zh) |
PL (1) | PL1620845T3 (zh) |
PT (1) | PT2535895T (zh) |
SI (1) | SI2535895T1 (zh) |
TW (1) | TWI324762B (zh) |
WO (1) | WO2004102532A1 (zh) |
Cited By (4)
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CN104541327A (zh) * | 2012-02-23 | 2015-04-22 | 杜比国际公司 | 用于高频音频内容的有效恢复的方法及系统 |
CN106463140A (zh) * | 2014-04-30 | 2017-02-22 | 奥兰吉公司 | 具有语音信息的改进型帧丢失矫正 |
CN106575510A (zh) * | 2014-07-01 | 2017-04-19 | 弗劳恩霍夫应用研究促进协会 | 用于确定用于音频信号的相位校正数据的计算器及方法 |
CN111656445A (zh) * | 2017-10-27 | 2020-09-11 | 弗劳恩霍夫应用研究促进协会 | 解码器处的噪声衰减 |
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JP3870193B2 (ja) | 2001-11-29 | 2007-01-17 | コーディング テクノロジーズ アクチボラゲット | 高周波再構成に用いる符号器、復号器、方法及びコンピュータプログラム |
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US7502743B2 (en) * | 2002-09-04 | 2009-03-10 | Microsoft Corporation | Multi-channel audio encoding and decoding with multi-channel transform selection |
SE0202770D0 (sv) | 2002-09-18 | 2002-09-18 | Coding Technologies Sweden Ab | Method for reduction of aliasing introduces by spectral envelope adjustment in real-valued filterbanks |
KR100537517B1 (ko) * | 2004-01-13 | 2005-12-19 | 삼성전자주식회사 | 오디오 데이타 변환 방법 및 장치 |
US7460990B2 (en) | 2004-01-23 | 2008-12-02 | Microsoft Corporation | Efficient coding of digital media spectral data using wide-sense perceptual similarity |
DE102004021403A1 (de) * | 2004-04-30 | 2005-11-24 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Informationssignalverarbeitung durch Modifikation in der Spektral-/Modulationsspektralbereichsdarstellung |
EP3336843B1 (en) * | 2004-05-14 | 2021-06-23 | Panasonic Intellectual Property Corporation of America | Speech coding method and speech coding apparatus |
KR20070012832A (ko) * | 2004-05-19 | 2007-01-29 | 마츠시타 덴끼 산교 가부시키가이샤 | 부호화 장치, 복호화 장치 및 이들의 방법 |
FR2888699A1 (fr) * | 2005-07-13 | 2007-01-19 | France Telecom | Dispositif de codage/decodage hierachique |
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US20070055510A1 (en) | 2005-07-19 | 2007-03-08 | Johannes Hilpert | Concept for bridging the gap between parametric multi-channel audio coding and matrixed-surround multi-channel coding |
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2003
- 2003-05-08 US US10/434,449 patent/US7318035B2/en active Active
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2004
- 2004-04-08 TW TW093109731A patent/TWI324762B/zh active
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- 2004-04-30 HU HUE12002662A patent/HUE045759T2/hu unknown
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CN104541327B (zh) * | 2012-02-23 | 2018-01-12 | 杜比国际公司 | 用于高频音频内容的有效恢复的方法及系统 |
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CN107993673B (zh) * | 2012-02-23 | 2022-09-27 | 杜比国际公司 | 确定噪声混合因子的方法、系统、编码器、解码器和介质 |
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CN106463140B (zh) * | 2014-04-30 | 2019-07-26 | 奥兰吉公司 | 具有语音信息的改进型帧丢失矫正 |
CN106575510A (zh) * | 2014-07-01 | 2017-04-19 | 弗劳恩霍夫应用研究促进协会 | 用于确定用于音频信号的相位校正数据的计算器及方法 |
US10770083B2 (en) | 2014-07-01 | 2020-09-08 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Audio processor and method for processing an audio signal using vertical phase correction |
US10930292B2 (en) | 2014-07-01 | 2021-02-23 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Audio processor and method for processing an audio signal using horizontal phase correction |
CN111656445A (zh) * | 2017-10-27 | 2020-09-11 | 弗劳恩霍夫应用研究促进协会 | 解码器处的噪声衰减 |
CN111656445B (zh) * | 2017-10-27 | 2023-10-27 | 弗劳恩霍夫应用研究促进协会 | 解码器处的噪声衰减 |
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