HK1058096A1 - Enhancing the performance of coding systems that use high frequency reconstruction methods. - Google Patents
Enhancing the performance of coding systems that use high frequency reconstruction methods.Info
- Publication number
- HK1058096A1 HK1058096A1 HK03108655A HK03108655A HK1058096A1 HK 1058096 A1 HK1058096 A1 HK 1058096A1 HK 03108655 A HK03108655 A HK 03108655A HK 03108655 A HK03108655 A HK 03108655A HK 1058096 A1 HK1058096 A1 HK 1058096A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- frequency
- audio signal
- high frequency
- crossover frequency
- core encoder
- Prior art date
Links
- 230000002708 enhancing effect Effects 0.000 title 1
- 230000005236 sound signal Effects 0.000 abstract 5
- 230000001419 dependent effect 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
- G10L19/02—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
-
- 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
- G10L19/04—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 predictive techniques
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
-
- 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
- G10L21/00—Speech or voice signal processing techniques 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Multimedia (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Computational Linguistics (AREA)
- Quality & Reliability (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Optical Communication System (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Transmitters (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0004187A SE0004187D0 (sv) | 2000-11-15 | 2000-11-15 | Enhancing the performance of coding systems that use high frequency reconstruction methods |
PCT/SE2001/002533 WO2002041302A1 (en) | 2000-11-15 | 2001-11-14 | Enhancing the performance of coding systems that use high frequency reconstruction methods |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1058096A1 true HK1058096A1 (en) | 2004-04-30 |
Family
ID=20281835
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK03108655A HK1058096A1 (en) | 2000-11-15 | 2003-11-27 | Enhancing the performance of coding systems that use high frequency reconstruction methods. |
Country Status (15)
Country | Link |
---|---|
US (1) | US7050972B2 (ja) |
EP (1) | EP1334484B1 (ja) |
JP (6) | JP3983668B2 (ja) |
KR (1) | KR100551862B1 (ja) |
CN (1) | CN1232950C (ja) |
AT (1) | ATE267445T1 (ja) |
AU (1) | AU2002215282A1 (ja) |
DE (1) | DE60103424T2 (ja) |
DK (1) | DK1334484T3 (ja) |
ES (1) | ES2218462T3 (ja) |
HK (1) | HK1058096A1 (ja) |
PT (1) | PT1334484E (ja) |
SE (1) | SE0004187D0 (ja) |
TR (1) | TR200401631T4 (ja) |
WO (1) | WO2002041302A1 (ja) |
Families Citing this family (73)
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US7240001B2 (en) | 2001-12-14 | 2007-07-03 | Microsoft Corporation | Quality improvement techniques in an audio encoder |
US6934677B2 (en) | 2001-12-14 | 2005-08-23 | Microsoft Corporation | Quantization matrices based on critical band pattern information for digital audio wherein quantization bands differ from critical bands |
US20030187663A1 (en) | 2002-03-28 | 2003-10-02 | Truman Michael Mead | Broadband frequency translation for high frequency regeneration |
KR100605824B1 (ko) | 2002-05-13 | 2006-07-31 | 삼성전자주식회사 | 부호분할다중접속 이동통신시스템의 방송서비스 방법 |
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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 |
US7318027B2 (en) | 2003-02-06 | 2008-01-08 | Dolby Laboratories Licensing Corporation | Conversion of synthesized spectral components for encoding and low-complexity transcoding |
FR2852172A1 (fr) * | 2003-03-04 | 2004-09-10 | France Telecom | Procede et dispositif de reconstruction spectrale d'un signal audio |
JP2004309921A (ja) * | 2003-04-09 | 2004-11-04 | Sony Corp | 符号化装置、符号化方法及びプログラム |
US7318035B2 (en) * | 2003-05-08 | 2008-01-08 | Dolby Laboratories Licensing Corporation | Audio coding systems and methods using spectral component coupling and spectral component regeneration |
DE10328777A1 (de) * | 2003-06-25 | 2005-01-27 | Coding Technologies Ab | Vorrichtung und Verfahren zum Codieren eines Audiosignals und Vorrichtung und Verfahren zum Decodieren eines codierten Audiosignals |
US20050004793A1 (en) * | 2003-07-03 | 2005-01-06 | Pasi Ojala | Signal adaptation for higher band coding in a codec utilizing band split coding |
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DE102004009949B4 (de) | 2004-03-01 | 2006-03-09 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und Verfahren zum Ermitteln eines Schätzwertes |
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DK1875463T3 (en) | 2005-04-22 | 2019-01-28 | Qualcomm Inc | SYSTEMS, PROCEDURES AND APPARATUS FOR AMPLIFIER FACTOR GLOSSARY |
WO2006118179A1 (ja) * | 2005-04-28 | 2006-11-09 | Matsushita Electric Industrial Co., Ltd. | 音声符号化装置および音声符号化方法 |
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US7831434B2 (en) * | 2006-01-20 | 2010-11-09 | Microsoft Corporation | Complex-transform channel coding with extended-band frequency coding |
US7953604B2 (en) * | 2006-01-20 | 2011-05-31 | Microsoft Corporation | Shape and scale parameters for extended-band frequency coding |
US8190425B2 (en) * | 2006-01-20 | 2012-05-29 | Microsoft Corporation | Complex cross-correlation parameters for multi-channel audio |
US20080109215A1 (en) * | 2006-06-26 | 2008-05-08 | Chi-Min Liu | High frequency reconstruction by linear extrapolation |
DE602006013359D1 (de) * | 2006-09-13 | 2010-05-12 | Ericsson Telefon Ab L M | Ender und empfänger |
JP4918841B2 (ja) | 2006-10-23 | 2012-04-18 | 富士通株式会社 | 符号化システム |
US8295507B2 (en) * | 2006-11-09 | 2012-10-23 | Sony Corporation | Frequency band extending apparatus, frequency band extending method, player apparatus, playing method, program and recording medium |
KR101355376B1 (ko) * | 2007-04-30 | 2014-01-23 | 삼성전자주식회사 | 고주파수 영역 부호화 및 복호화 방법 및 장치 |
US7885819B2 (en) | 2007-06-29 | 2011-02-08 | Microsoft Corporation | Bitstream syntax for multi-process audio decoding |
EP2186086B1 (en) | 2007-08-27 | 2013-01-23 | Telefonaktiebolaget L M Ericsson (PUBL) | Adaptive transition frequency between noise fill and bandwidth extension |
KR101235830B1 (ko) * | 2007-12-06 | 2013-02-21 | 한국전자통신연구원 | 음성코덱의 품질향상장치 및 그 방법 |
ATE518224T1 (de) | 2008-01-04 | 2011-08-15 | Dolby Int Ab | Audiokodierer und -dekodierer |
CN101281748B (zh) * | 2008-05-14 | 2011-06-15 | 武汉大学 | 用编码索引实现的空缺子带填充方法及编码索引生成方法 |
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ES2684297T3 (es) | 2008-07-11 | 2018-10-02 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Método y discriminador para clasificar diferentes segmentos de una señal de audio que comprende segmentos de voz y música |
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EP4145446B1 (en) | 2009-01-16 | 2023-11-22 | Dolby International AB | Cross product enhanced harmonic transposition |
JP4977157B2 (ja) * | 2009-03-06 | 2012-07-18 | 株式会社エヌ・ティ・ティ・ドコモ | 音信号符号化方法、音信号復号方法、符号化装置、復号装置、音信号処理システム、音信号符号化プログラム、及び、音信号復号プログラム |
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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 |
US11657788B2 (en) | 2009-05-27 | 2023-05-23 | Dolby International Ab | Efficient combined harmonic transposition |
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CN105103225B (zh) * | 2013-04-05 | 2019-06-21 | 杜比国际公司 | 立体声音频编码器和解码器 |
JP6305694B2 (ja) * | 2013-05-31 | 2018-04-04 | クラリオン株式会社 | 信号処理装置及び信号処理方法 |
CN111627451B (zh) * | 2013-06-21 | 2023-11-03 | 弗朗霍夫应用科学研究促进协会 | 用于获取音频信号的替换帧的频谱系数的方法及相关产品 |
JP6531103B2 (ja) * | 2013-09-12 | 2019-06-12 | ドルビー・インターナショナル・アーベー | Qmfベースの処理データの時間整列 |
CN104681029B (zh) * | 2013-11-29 | 2018-06-05 | 华为技术有限公司 | 立体声相位参数的编码方法及装置 |
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BR112018067944B1 (pt) * | 2016-03-07 | 2024-03-05 | Fraunhofer - Gesellschaft Zur Förderung Der Angewandten Forschung E.V | Unidade de ocultação de erro, método de ocultação de erro,decodificador de áudio, codificador de áudio, método para fornecer uma representação de áudio codificada e sistema |
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2000
- 2000-11-15 SE SE0004187A patent/SE0004187D0/xx unknown
-
2001
- 2001-11-14 EP EP01983888A patent/EP1334484B1/en not_active Expired - Lifetime
- 2001-11-14 TR TR2004/01631T patent/TR200401631T4/xx unknown
- 2001-11-14 PT PT01983888T patent/PT1334484E/pt unknown
- 2001-11-14 DK DK01983888T patent/DK1334484T3/da active
- 2001-11-14 CN CNB018189725A patent/CN1232950C/zh not_active Expired - Lifetime
- 2001-11-14 DE DE60103424T patent/DE60103424T2/de not_active Expired - Lifetime
- 2001-11-14 WO PCT/SE2001/002533 patent/WO2002041302A1/en active IP Right Grant
- 2001-11-14 KR KR1020037006583A patent/KR100551862B1/ko active IP Right Grant
- 2001-11-14 ES ES01983888T patent/ES2218462T3/es not_active Expired - Lifetime
- 2001-11-14 AU AU2002215282A patent/AU2002215282A1/en not_active Abandoned
- 2001-11-14 AT AT01983888T patent/ATE267445T1/de active
- 2001-11-14 JP JP2002543428A patent/JP3983668B2/ja not_active Expired - Fee Related
- 2001-11-15 US US09/987,657 patent/US7050972B2/en not_active Expired - Lifetime
-
2003
- 2003-11-27 HK HK03108655A patent/HK1058096A1/xx not_active IP Right Cessation
-
2007
- 2007-05-30 JP JP2007142978A patent/JP4991397B2/ja not_active Expired - Lifetime
-
2011
- 2011-12-08 JP JP2011269144A patent/JP5933965B2/ja not_active Expired - Lifetime
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2014
- 2014-01-09 JP JP2014002174A patent/JP6207404B2/ja not_active Expired - Lifetime
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2016
- 2016-06-08 JP JP2016114496A patent/JP6368740B2/ja not_active Expired - Lifetime
-
2018
- 2018-07-09 JP JP2018129571A patent/JP6592148B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP6207404B2 (ja) | 2017-10-04 |
ES2218462T3 (es) | 2004-11-16 |
DE60103424T2 (de) | 2005-06-16 |
SE0004187D0 (sv) | 2000-11-15 |
JP2007293354A (ja) | 2007-11-08 |
PT1334484E (pt) | 2004-09-30 |
ATE267445T1 (de) | 2004-06-15 |
CN1475010A (zh) | 2004-02-11 |
TR200401631T4 (tr) | 2004-09-21 |
DK1334484T3 (da) | 2004-08-09 |
US7050972B2 (en) | 2006-05-23 |
DE60103424D1 (de) | 2004-06-24 |
AU2002215282A1 (en) | 2002-05-27 |
EP1334484A1 (en) | 2003-08-13 |
JP3983668B2 (ja) | 2007-09-26 |
JP6592148B2 (ja) | 2019-10-16 |
KR20030076576A (ko) | 2003-09-26 |
JP2018185530A (ja) | 2018-11-22 |
JP2004514180A (ja) | 2004-05-13 |
CN1232950C (zh) | 2005-12-21 |
US20020103637A1 (en) | 2002-08-01 |
JP5933965B2 (ja) | 2016-06-15 |
JP2012093774A (ja) | 2012-05-17 |
JP6368740B2 (ja) | 2018-08-01 |
EP1334484B1 (en) | 2004-05-19 |
JP2014089472A (ja) | 2014-05-15 |
JP2016189015A (ja) | 2016-11-04 |
WO2002041302A1 (en) | 2002-05-23 |
JP4991397B2 (ja) | 2012-08-01 |
KR100551862B1 (ko) | 2006-02-13 |
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