CA2729474C - Appareil et procede servant a generer un signal a largeur de bande etalee - Google Patents
Appareil et procede servant a generer un signal a largeur de bande etalee Download PDFInfo
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- CA2729474C CA2729474C CA2729474A CA2729474A CA2729474C CA 2729474 C CA2729474 C CA 2729474C CA 2729474 A CA2729474 A CA 2729474A CA 2729474 A CA2729474 A CA 2729474A CA 2729474 C CA2729474 C CA 2729474C
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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
- 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
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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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Signal Processing (AREA)
- Computational Linguistics (AREA)
- Quality & Reliability (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Stereophonic System (AREA)
- Reverberation, Karaoke And Other Acoustics (AREA)
- Transmitters (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
La présente invention concerne un appareil servant à générer un signal à largeur de bande étalée à partir dun signal dentrée, qui comprend un générateur de programme de correction et un mélangeur. Le signal dentrée est représenté pour une première bande par des premières données de résolution, et pour une seconde bande par des secondes données de résolution, la seconde résolution étant inférieure à la première résolution. Le générateur de programme de correction génère un premier programme de correction à partir de la première bande du signal dentrée en fonction dun premier algorithme de correction et génère un second programme de correction à partir de la première bande du signal dentrée en fonction dun second algorithme de correction. Une densité spectrale du second programme de correction générée en fonction du second algorithme de correction est supérieure à une densité spectrale dun premier programme de correction généré en fonction du premier algorithme de correction. Le mélangeur mélange le premier programme de correction, le second programme de correction et la première bande du signal dentrée pour obtenir le signal à largeur de bande étalée. Lappareil servant à générer un signal à largeur de bande étalée met à léchelle le signal dentrée en fonction du premier algorithme de correction et en fonction du second algorithme de correction ou met à léchelle le premier programme de correction et le second programme de correction, de sorte que le signal à largeur de bande étalée satisfasse un critère de lenveloppe spectrale.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US7984908P | 2008-07-11 | 2008-07-11 | |
| US61/079,849 | 2008-07-11 | ||
| PCT/EP2009/004603 WO2010003557A1 (fr) | 2008-07-11 | 2009-06-25 | Appareil et procédé servant à générer un signal à largeur de bande étalée |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2729474A1 CA2729474A1 (fr) | 2010-01-14 |
| CA2729474C true CA2729474C (fr) | 2015-09-01 |
Family
ID=41162740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2729474A Active CA2729474C (fr) | 2008-07-11 | 2009-06-25 | Appareil et procede servant a generer un signal a largeur de bande etalee |
Country Status (18)
| Country | Link |
|---|---|
| EP (1) | EP2291842B1 (fr) |
| JP (1) | JP5255699B2 (fr) |
| KR (1) | KR101239812B1 (fr) |
| CN (1) | CN102105931B (fr) |
| AR (1) | AR072483A1 (fr) |
| AU (1) | AU2009267460B2 (fr) |
| BR (2) | BR122017003818B1 (fr) |
| CA (1) | CA2729474C (fr) |
| CO (1) | CO6541514A2 (fr) |
| ES (1) | ES2461141T3 (fr) |
| HK (1) | HK1154112A1 (fr) |
| MX (1) | MX2011000365A (fr) |
| MY (1) | MY163454A (fr) |
| PL (1) | PL2291842T3 (fr) |
| RU (1) | RU2512090C2 (fr) |
| TW (1) | TWI415116B (fr) |
| WO (1) | WO2010003557A1 (fr) |
| ZA (1) | ZA201009164B (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11605391B2 (en) | 2017-03-23 | 2023-03-14 | Dolby International Ab | Backward-compatible integration of harmonic transposer for high frequency reconstruction of audio signals |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL3564955T3 (pl) | 2010-01-19 | 2021-04-19 | Dolby International Ab | Ulepszona transpozycja harmonicznych opierająca się na bloku pod-pasma |
| RU2591012C2 (ru) | 2010-03-09 | 2016-07-10 | Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. | Устройство и способ обработки переходных процессов для аудио сигналов с изменением скорости воспроизведения или высоты тона |
| CA2792449C (fr) | 2010-03-09 | 2017-12-05 | Dolby International Ab | Dispositif et procede pour une reponse en amplitude et alignement temporel ameliores dans un procede d'extension de bande passante base sur un vocodeur de phase pour des signaux audio |
| KR101425154B1 (ko) | 2010-03-09 | 2014-08-13 | 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. | 패치 경계 정렬을 이용한 오디오 신호 처리 장치 및 방법 |
| CN102947882B (zh) * | 2010-04-16 | 2015-06-17 | 弗劳恩霍夫应用研究促进协会 | 使用制导带宽扩展和盲带宽扩展生成宽带信号的装置、方法 |
| US12002476B2 (en) | 2010-07-19 | 2024-06-04 | Dolby International Ab | Processing of audio signals during high frequency reconstruction |
| PL3544007T3 (pl) * | 2010-07-19 | 2020-11-02 | Dolby International Ab | Przetwarzanie sygnałów audio podczas rekonstrukcji wysokiej częstotliwości |
| EP3503100A1 (fr) | 2010-09-16 | 2019-06-26 | Dolby International AB | Transposition harmonique à base de bloc de sous-bande à produit d'intermodulation amélioré |
| US8490008B2 (en) * | 2011-11-10 | 2013-07-16 | Research In Motion Limited | Touchscreen keyboard predictive display and generation of a set of characters |
| WO2013066238A2 (fr) * | 2011-11-02 | 2013-05-10 | Telefonaktiebolaget L M Ericsson (Publ) | Génération d'une extension à bande haute d'un signal audio à bande passante étendue |
| CN102543086B (zh) * | 2011-12-16 | 2013-08-14 | 大连理工大学 | 一种基于音频水印的语音带宽扩展的装置和方法 |
| ES2549953T3 (es) * | 2012-08-27 | 2015-11-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Aparato y método para la reproducción de una señal de audio, aparato y método para la generación de una señal de audio codificada, programa de ordenador y señal de audio codificada |
| EP2709106A1 (fr) * | 2012-09-17 | 2014-03-19 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Appareil et procédé pour générer un signal à largeur de bande étendue à partir d'un signal audio à largeur de bande limitée |
| EP2830060A1 (fr) * | 2013-07-22 | 2015-01-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Remplissage de bruit de codage audio multicanal |
| US9564141B2 (en) * | 2014-02-13 | 2017-02-07 | Qualcomm Incorporated | Harmonic bandwidth extension of audio signals |
| JP2016038435A (ja) * | 2014-08-06 | 2016-03-22 | ソニー株式会社 | 符号化装置および方法、復号装置および方法、並びにプログラム |
| RU2589305C1 (ru) * | 2014-11-18 | 2016-07-10 | Федеральное государственное казенное военное образовательное учреждение высшего профессионального образования "Военный учебно-научный центр Военно-воздушных сил "Военно-воздушная академия имени профессора Н.Е. Жуковского и Ю.А. Гагарина" (г. Воронеж) Министерства обороны Российской Федерации | Способ генерации высокочастотных сигналов и устройство его реализации |
| WO2016149085A2 (fr) * | 2015-03-13 | 2016-09-22 | Psyx Research, Inc. | Système et procédé de récupération dynamique de données audio et d'amélioration de données audio compressées |
| EP3121814A1 (fr) * | 2015-07-24 | 2017-01-25 | Sound object techology S.A. in organization | Procédé et système pour la décomposition d'un signal acoustique en objets sonores, objet sonore et son utilisation |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US654988A (en) * | 1900-03-16 | 1900-07-31 | Leonhard Lederer | Process of making acetyl cellulose. |
| US5455888A (en) * | 1992-12-04 | 1995-10-03 | Northern Telecom Limited | Speech bandwidth extension method and apparatus |
| RU2256293C2 (ru) * | 1997-06-10 | 2005-07-10 | Коудинг Технолоджиз Аб | Усовершенствование исходного кодирования с использованием дублирования спектральной полосы |
| SE512719C2 (sv) * | 1997-06-10 | 2000-05-02 | Lars Gustaf Liljeryd | En metod och anordning för reduktion av dataflöde baserad på harmonisk bandbreddsexpansion |
| EP0945852A1 (fr) * | 1998-03-25 | 1999-09-29 | BRITISH TELECOMMUNICATIONS public limited company | Synthèse de la parole |
| SE9903553D0 (sv) * | 1999-01-27 | 1999-10-01 | Lars Liljeryd | Enhancing percepptual performance of SBR and related coding methods by adaptive noise addition (ANA) and noise substitution limiting (NSL) |
| SE0004163D0 (sv) * | 2000-11-14 | 2000-11-14 | Coding Technologies Sweden Ab | Enhancing perceptual performance of high frequency reconstruction coding methods by adaptive filtering |
| WO2003007480A1 (fr) | 2001-07-13 | 2003-01-23 | Matsushita Electric Industrial Co., Ltd. | Dispositif de decodage de signaux audio et dispositif de codage de signaux audio |
| CN1550002A (zh) * | 2001-08-31 | 2004-11-24 | 皇家飞利浦电子股份有限公司 | 声音信号的带宽扩展 |
| JP4380174B2 (ja) * | 2003-02-27 | 2009-12-09 | 沖電気工業株式会社 | 帯域補正装置 |
| CN100550131C (zh) * | 2003-05-20 | 2009-10-14 | 松下电器产业株式会社 | 用于扩展音频信号的频带的方法及其装置 |
| JP2005010621A (ja) * | 2003-06-20 | 2005-01-13 | Matsushita Electric Ind Co Ltd | 音声帯域拡張装置及び帯域拡張方法 |
| BRPI0517246A (pt) * | 2004-10-28 | 2008-10-07 | Matsushita Electric Ind Co Ltd | aparelho de codificação escalável, aparelho de decodificação escalável e métodos para os mesmos |
| KR100647336B1 (ko) * | 2005-11-08 | 2006-11-23 | 삼성전자주식회사 | 적응적 시간/주파수 기반 오디오 부호화/복호화 장치 및방법 |
| JP5141180B2 (ja) * | 2006-11-09 | 2013-02-13 | ソニー株式会社 | 周波数帯域拡大装置及び周波数帯域拡大方法、再生装置及び再生方法、並びに、プログラム及び記録媒体 |
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2009
- 2009-06-25 EP EP09776840.2A patent/EP2291842B1/fr active Active
- 2009-06-25 MY MYPI2011000040A patent/MY163454A/en unknown
- 2009-06-25 BR BR122017003818-4A patent/BR122017003818B1/pt active IP Right Grant
- 2009-06-25 RU RU2011100134/08A patent/RU2512090C2/ru active
- 2009-06-25 ES ES09776840.2T patent/ES2461141T3/es active Active
- 2009-06-25 CA CA2729474A patent/CA2729474C/fr active Active
- 2009-06-25 PL PL09776840T patent/PL2291842T3/pl unknown
- 2009-06-25 KR KR1020117000441A patent/KR101239812B1/ko active IP Right Grant
- 2009-06-25 MX MX2011000365A patent/MX2011000365A/es active IP Right Grant
- 2009-06-25 BR BRPI0910528-0A patent/BRPI0910528B1/pt active IP Right Grant
- 2009-06-25 WO PCT/EP2009/004603 patent/WO2010003557A1/fr active Application Filing
- 2009-06-25 CN CN2009801270931A patent/CN102105931B/zh active Active
- 2009-06-25 AU AU2009267460A patent/AU2009267460B2/en active Active
- 2009-06-25 JP JP2011516992A patent/JP5255699B2/ja active Active
- 2009-07-03 TW TW098122551A patent/TWI415116B/zh active
- 2009-07-07 AR ARP090102552A patent/AR072483A1/es active IP Right Grant
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2010
- 2010-12-21 ZA ZA2010/09164A patent/ZA201009164B/en unknown
- 2010-12-29 CO CO10164070A patent/CO6541514A2/es active IP Right Grant
-
2011
- 2011-08-10 HK HK11108364.8A patent/HK1154112A1/xx unknown
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11605391B2 (en) | 2017-03-23 | 2023-03-14 | Dolby International Ab | Backward-compatible integration of harmonic transposer for high frequency reconstruction of audio signals |
| US11621013B2 (en) | 2017-03-23 | 2023-04-04 | Dolby International Ab | Backward-compatible integration of harmonic transposer for high frequency reconstruction of audio signals |
| US11626123B2 (en) | 2017-03-23 | 2023-04-11 | Dolby International Ab | Backward-compatible integration of harmonic transposer for high frequency reconstruction of audio signals |
| US11676616B2 (en) | 2017-03-23 | 2023-06-13 | Dolby International Ab | Backward-compatible integration of harmonic transposer for high frequency reconstruction of audio signals |
| US11763830B2 (en) | 2017-03-23 | 2023-09-19 | Dolby International Ab | Backward-compatible integration of harmonic transposer for high frequency reconstruction of audio signals |
Also Published As
| Publication number | Publication date |
|---|---|
| MX2011000365A (es) | 2011-02-25 |
| RU2011100134A (ru) | 2012-07-20 |
| JP2011527452A (ja) | 2011-10-27 |
| BRPI0910528B1 (pt) | 2020-09-24 |
| HK1154112A1 (en) | 2012-04-20 |
| BR122017003818B1 (pt) | 2024-03-05 |
| KR101239812B1 (ko) | 2013-03-06 |
| AU2009267460B2 (en) | 2013-01-10 |
| WO2010003557A1 (fr) | 2010-01-14 |
| CN102105931B (zh) | 2013-04-10 |
| TWI415116B (zh) | 2013-11-11 |
| ZA201009164B (en) | 2011-10-26 |
| AR072483A1 (es) | 2010-09-01 |
| ES2461141T3 (es) | 2014-05-16 |
| PL2291842T3 (pl) | 2014-08-29 |
| MY163454A (en) | 2017-09-15 |
| KR20110033188A (ko) | 2011-03-30 |
| EP2291842A1 (fr) | 2011-03-09 |
| CO6541514A2 (es) | 2012-10-16 |
| AU2009267460A1 (en) | 2010-01-14 |
| TW201007708A (en) | 2010-02-16 |
| EP2291842B1 (fr) | 2014-03-12 |
| CA2729474A1 (fr) | 2010-01-14 |
| JP5255699B2 (ja) | 2013-08-07 |
| CN102105931A (zh) | 2011-06-22 |
| BRPI0910528A2 (pt) | 2018-05-22 |
| BR122017003818A2 (pt) | 2019-09-03 |
| RU2512090C2 (ru) | 2014-04-10 |
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