CN1223990C - 通过自适应变换改进源编码*** - Google Patents
通过自适应变换改进源编码*** Download PDFInfo
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- CN1223990C CN1223990C CNB018210414A CN01821041A CN1223990C CN 1223990 C CN1223990 C CN 1223990C CN B018210414 A CNB018210414 A CN B018210414A CN 01821041 A CN01821041 A CN 01821041A CN 1223990 C CN1223990 C CN 1223990C
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- 230000003044 adaptive effect Effects 0.000 title abstract description 5
- 230000002708 enhancing effect Effects 0.000 title 1
- 230000017105 transposition Effects 0.000 title 1
- 238000000034 method Methods 0.000 claims abstract description 27
- 238000001228 spectrum Methods 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims description 18
- 230000005236 sound signal Effects 0.000 claims description 17
- 230000001052 transient effect Effects 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims 2
- 238000000926 separation method Methods 0.000 claims 1
- 230000009466 transformation Effects 0.000 description 7
- 238000001514 detection method Methods 0.000 description 4
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 239000000284 extract Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
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Images
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
- 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
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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)
- Quality & Reliability (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
Description
Claims (17)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0004818A SE0004818D0 (sv) | 2000-12-22 | 2000-12-22 | Enhancing source coding systems by adaptive transposition |
SE00048181 | 2000-12-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1481546A CN1481546A (zh) | 2004-03-10 |
CN1223990C true CN1223990C (zh) | 2005-10-19 |
Family
ID=20282398
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB018210414A Expired - Lifetime CN1223990C (zh) | 2000-12-22 | 2001-12-19 | 通过自适应变换改进源编码*** |
Country Status (10)
Country | Link |
---|---|
US (1) | US7260520B2 (zh) |
EP (1) | EP1338000B1 (zh) |
JP (1) | JP3992619B2 (zh) |
KR (1) | KR100566630B1 (zh) |
CN (1) | CN1223990C (zh) |
AT (1) | ATE265731T1 (zh) |
DE (1) | DE60103086T2 (zh) |
HK (1) | HK1056428A1 (zh) |
SE (1) | SE0004818D0 (zh) |
WO (1) | WO2002052545A1 (zh) |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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) |
KR100462615B1 (ko) * | 2002-07-11 | 2004-12-20 | 삼성전자주식회사 | 적은 계산량으로 고주파수 성분을 복원하는 오디오 디코딩방법 및 장치 |
DE10252327A1 (de) * | 2002-11-11 | 2004-05-27 | Siemens Ag | Verfahren zur Erweiterung der Bandbreite eines schmalbandig gefilterten Sprachsignals, insbesondere eines von einem Telekommunikationsgerät gesendeten Sprachsignals |
KR100501930B1 (ko) * | 2002-11-29 | 2005-07-18 | 삼성전자주식회사 | 적은 계산량으로 고주파수 성분을 복원하는 오디오 디코딩방법 및 장치 |
WO2005034092A2 (en) * | 2003-09-29 | 2005-04-14 | Handheld Entertainment, Inc. | Method and apparatus for coding information |
KR100608062B1 (ko) | 2004-08-04 | 2006-08-02 | 삼성전자주식회사 | 오디오 데이터의 고주파수 복원 방법 및 그 장치 |
US7797156B2 (en) * | 2005-02-15 | 2010-09-14 | Raytheon Bbn Technologies Corp. | Speech analyzing system with adaptive noise codebook |
US8219391B2 (en) * | 2005-02-15 | 2012-07-10 | Raytheon Bbn Technologies Corp. | Speech analyzing system with speech codebook |
WO2007107670A2 (fr) * | 2006-03-20 | 2007-09-27 | France Telecom | Procede de post-traitement d'un signal dans un decodeur audio |
US8229106B2 (en) * | 2007-01-22 | 2012-07-24 | D.S.P. Group, Ltd. | Apparatus and methods for enhancement of speech |
KR100972297B1 (ko) * | 2007-08-28 | 2010-07-23 | 한국전자통신연구원 | 가변 비트 해상도 혹은 클락 주파수를 가지는 아날로그디지털 변환기를 이용한 적응형 변조방식 및 그 장치 |
WO2009028806A2 (en) * | 2007-08-28 | 2009-03-05 | Electronics And Telecommunications Research Institute | Method for applying amplitude use to digital amplyfier with variable bit resolution or clock frequency and apparatus for excuting the method |
JP5400059B2 (ja) | 2007-12-18 | 2014-01-29 | エルジー エレクトロニクス インコーポレイティド | オーディオ信号処理方法及び装置 |
JP2009300707A (ja) * | 2008-06-13 | 2009-12-24 | Sony Corp | 情報処理装置および方法、並びにプログラム |
EP2346029B1 (en) | 2008-07-11 | 2013-06-05 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoder, method for encoding an audio signal and corresponding computer program |
MY154452A (en) | 2008-07-11 | 2015-06-15 | Fraunhofer Ges Forschung | An apparatus and a method for decoding an encoded audio signal |
RU2491658C2 (ru) | 2008-07-11 | 2013-08-27 | Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. | Синтезатор аудиосигнала и кодирующее устройство аудиосигнала |
RU2589309C2 (ru) | 2008-07-11 | 2016-07-10 | Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. | Передатчик сигнала активации с деформацией по времени, кодер звукового сигнала, способ преобразования сигнала активации с деформацией по времени, способ кодирования звукового сигнала и компьютерные программы |
KR101108955B1 (ko) * | 2008-09-25 | 2012-02-06 | 엘지전자 주식회사 | 오디오 신호 처리 방법 및 장치 |
EP2169670B1 (en) | 2008-09-25 | 2016-07-20 | LG Electronics Inc. | An apparatus for processing an audio signal and method thereof |
CA2748003C (en) | 2009-01-16 | 2016-05-24 | Dolby International Ab | Cross product enhanced harmonic transposition |
AU2013201597B2 (en) * | 2009-01-16 | 2015-11-12 | Dolby International Ab | Cross product enhanced harmonic transposition |
RU2452044C1 (ru) | 2009-04-02 | 2012-05-27 | Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. | Устройство, способ и носитель с программным кодом для генерирования представления сигнала с расширенным диапазоном частот на основе представления входного сигнала с использованием сочетания гармонического расширения диапазона частот и негармонического расширения диапазона частот |
EP2239732A1 (en) * | 2009-04-09 | 2010-10-13 | Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. | Apparatus and method for generating a synthesis audio signal and for encoding an audio signal |
CO6440537A2 (es) | 2009-04-09 | 2012-05-15 | Fraunhofer Ges Forschung | Aparato y metodo para generar una señal de audio de sintesis y para codificar una señal de audio |
ES2507165T3 (es) | 2009-10-21 | 2014-10-14 | Dolby International Ab | Sobremuestreo en un banco de filtros de reemisor combinado |
PL3564955T3 (pl) | 2010-01-19 | 2021-04-19 | Dolby International Ab | Ulepszona transpozycja harmonicznych opierająca się na bloku pod-pasma |
WO2011127832A1 (en) * | 2010-04-14 | 2011-10-20 | Huawei Technologies Co., Ltd. | Time/frequency two dimension post-processing |
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 |
KR101572034B1 (ko) | 2011-05-19 | 2015-11-26 | 돌비 레버러토리즈 라이쎈싱 코오포레이션 | 파라메트릭 오디오 코딩 방식들의 포렌식 검출 |
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 |
EP3067889A1 (en) | 2015-03-09 | 2016-09-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method and apparatus for signal-adaptive transform kernel switching in audio coding |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4398062A (en) * | 1976-11-11 | 1983-08-09 | Harris Corporation | Apparatus for privacy transmission in system having bandwidth constraint |
EP1162601A3 (en) * | 1991-06-11 | 2002-07-03 | QUALCOMM Incorporated | Variable rate vocoder |
US5717824A (en) * | 1992-08-07 | 1998-02-10 | Pacific Communication Sciences, Inc. | Adaptive speech coder having code excited linear predictor with multiple codebook searches |
JPH06177688A (ja) | 1992-10-05 | 1994-06-24 | Mitsubishi Electric Corp | オーディオ信号処理装置 |
US5568588A (en) * | 1994-04-29 | 1996-10-22 | Audiocodes Ltd. | Multi-pulse analysis speech processing System and method |
SE506379C3 (sv) * | 1995-03-22 | 1998-01-19 | Ericsson Telefon Ab L M | Lpc-talkodare med kombinerad excitation |
US5788338A (en) | 1996-07-09 | 1998-08-04 | Westinghouse Air Brake Company | Train brake pipe remote pressure control system and motor-driven regulating valve therefor |
US5842709A (en) * | 1996-10-16 | 1998-12-01 | Kwikee Products Co., Inc. | Retractable, swing down step assembly |
SE512719C2 (sv) * | 1997-06-10 | 2000-05-02 | Lars Gustaf Liljeryd | En metod och anordning för reduktion av dataflöde baserad på harmonisk bandbreddsexpansion |
DE69829272T2 (de) * | 1997-11-03 | 2006-02-09 | Koninklijke Philips Electronics N.V. | Anordnung mit einfügungsmittel zur identifizierung mittels zusatzinformation eines informationspaketstroms, der kodierte digitale daten überträgt |
KR19990085742A (ko) | 1998-05-21 | 1999-12-15 | 김영환 | 디지털 오디오 인코더의 과도부분 검출방법 |
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) |
CN1335980A (zh) * | 1999-11-10 | 2002-02-13 | 皇家菲利浦电子有限公司 | 借助于映射矩阵的宽频带语音合成 |
US6732070B1 (en) * | 2000-02-16 | 2004-05-04 | Nokia Mobile Phones, Ltd. | Wideband speech codec using a higher sampling rate in analysis and synthesis filtering than in excitation searching |
-
2000
- 2000-12-22 SE SE0004818A patent/SE0004818D0/xx unknown
-
2001
- 2001-12-19 WO PCT/SE2001/002828 patent/WO2002052545A1/en active IP Right Grant
- 2001-12-19 DE DE60103086T patent/DE60103086T2/de not_active Expired - Lifetime
- 2001-12-19 JP JP2002553760A patent/JP3992619B2/ja not_active Expired - Fee Related
- 2001-12-19 KR KR1020037007893A patent/KR100566630B1/ko not_active IP Right Cessation
- 2001-12-19 CN CNB018210414A patent/CN1223990C/zh not_active Expired - Lifetime
- 2001-12-19 EP EP01272413A patent/EP1338000B1/en not_active Expired - Lifetime
- 2001-12-19 AT AT01272413T patent/ATE265731T1/de active
- 2001-12-20 US US10/022,526 patent/US7260520B2/en not_active Expired - Lifetime
-
2003
- 2003-11-27 HK HK03108653A patent/HK1056428A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CN1481546A (zh) | 2004-03-10 |
DE60103086D1 (de) | 2004-06-03 |
HK1056428A1 (en) | 2004-02-13 |
KR100566630B1 (ko) | 2006-03-31 |
WO2002052545A1 (en) | 2002-07-04 |
DE60103086T2 (de) | 2005-01-20 |
JP3992619B2 (ja) | 2007-10-17 |
KR20040029314A (ko) | 2004-04-06 |
EP1338000B1 (en) | 2004-04-28 |
SE0004818D0 (sv) | 2000-12-22 |
US7260520B2 (en) | 2007-08-21 |
EP1338000A1 (en) | 2003-08-27 |
JP2004517358A (ja) | 2004-06-10 |
US20020118845A1 (en) | 2002-08-29 |
ATE265731T1 (de) | 2004-05-15 |
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Owner name: DOLBY SWEDEN AB COMPANY Free format text: FORMER NAME: CODING TECHNOLOGIES SWEDEN AB Owner name: DOLBY INTERNATIONAL COMPANY Free format text: FORMER NAME: DOLBY SWEDEN AB COMPANY |
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Address after: Stockholm Patentee after: Dolby Sweden AG Address before: Stockholm Patentee before: CODING TECHNOLOGIES AB |
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Address after: Amsterdam, The Netherlands Patentee after: DOLBY INTERNATIONAL AB Address before: Stockholm Patentee before: Dolby Sweden AG |
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