CN1430777A - 子带域中改进的频谱平移/折叠 - Google Patents
子带域中改进的频谱平移/折叠 Download PDFInfo
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- CN1430777A CN1430777A CN01809978A CN01809978A CN1430777A CN 1430777 A CN1430777 A CN 1430777A CN 01809978 A CN01809978 A CN 01809978A CN 01809978 A CN01809978 A CN 01809978A CN 1430777 A CN1430777 A CN 1430777A
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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
- G10L19/0204—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 using subband decomposition
- G10L19/0208—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
- G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
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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
- G10L19/04—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
- G10L19/26—Pre-filtering or post-filtering
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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
- G10L19/04—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
- G10L19/26—Pre-filtering or post-filtering
- G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to encoding
-
- 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
- G10L19/0204—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 using subband decomposition
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- 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)
- Optical Communication System (AREA)
- Golf Clubs (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
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Abstract
Description
Claims (8)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0001926A SE0001926D0 (sv) | 2000-05-23 | 2000-05-23 | Improved spectral translation/folding in the subband domain |
SE00019265 | 2000-05-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1430777A true CN1430777A (zh) | 2003-07-16 |
CN1210689C CN1210689C (zh) | 2005-07-13 |
Family
ID=20279807
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB018099785A Expired - Lifetime CN1210689C (zh) | 2000-05-23 | 2001-05-23 | 子带域中改进的频谱平移/折叠的方法和设备 |
Country Status (12)
Country | Link |
---|---|
US (17) | US7483758B2 (zh) |
EP (1) | EP1285436B1 (zh) |
JP (2) | JP4289815B2 (zh) |
CN (1) | CN1210689C (zh) |
AT (1) | ATE250272T1 (zh) |
AU (1) | AU2001262836A1 (zh) |
BR (1) | BRPI0111362B1 (zh) |
DE (1) | DE60100813T2 (zh) |
HK (1) | HK1067954A1 (zh) |
RU (1) | RU2251795C2 (zh) |
SE (2) | SE0001926D0 (zh) |
WO (1) | WO2001091111A1 (zh) |
Cited By (8)
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CN101064500B (zh) * | 2006-04-27 | 2010-06-23 | 富士通媒体部品株式会社 | 滤波器和双工器 |
CN101228578B (zh) * | 2005-07-20 | 2011-08-31 | 国立大学法人九州工业大学 | 高频信号插值方法以及高频信号插值装置 |
CN101273404B (zh) * | 2005-09-30 | 2012-07-04 | 松下电器产业株式会社 | 语音编码装置以及语音编码方法 |
CN101971253B (zh) * | 2008-03-14 | 2012-07-18 | 松下电器产业株式会社 | 编码装置、解码装置以及其方法 |
CN102089816B (zh) * | 2008-07-11 | 2013-01-30 | 弗朗霍夫应用科学研究促进协会 | 音频信号合成器及音频信号编码器 |
CN101903944B (zh) * | 2007-12-18 | 2013-04-03 | Lg电子株式会社 | 用于处理音频信号的方法和装置 |
CN103377655A (zh) * | 2012-04-16 | 2013-10-30 | 三星电子株式会社 | 提高音质的设备和方法 |
CN114079603A (zh) * | 2020-08-13 | 2022-02-22 | 华为技术有限公司 | 一种信号折叠方法及设备 |
Families Citing this family (84)
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SE0001926D0 (sv) | 2000-05-23 | 2000-05-23 | Lars Liljeryd | Improved spectral translation/folding in the subband domain |
AUPR433901A0 (en) | 2001-04-10 | 2001-05-17 | Lake Technology Limited | High frequency signal construction method |
CN1279512C (zh) * | 2001-11-29 | 2006-10-11 | 编码技术股份公司 | 用于改善高频重建的方法和装置 |
US20030187663A1 (en) | 2002-03-28 | 2003-10-02 | Truman Michael Mead | Broadband frequency translation for high frequency regeneration |
US7447631B2 (en) * | 2002-06-17 | 2008-11-04 | Dolby Laboratories Licensing Corporation | Audio coding system using spectral hole filling |
TWI288915B (en) * | 2002-06-17 | 2007-10-21 | Dolby Lab Licensing Corp | Improved audio coding system using characteristics of a decoded signal to adapt synthesized spectral components |
US7519530B2 (en) | 2003-01-09 | 2009-04-14 | Nokia Corporation | Audio signal processing |
US7318027B2 (en) | 2003-02-06 | 2008-01-08 | Dolby Laboratories Licensing Corporation | Conversion of synthesized spectral components for encoding and low-complexity transcoding |
EP1475996B1 (en) * | 2003-05-06 | 2009-04-08 | Harman Becker Automotive Systems GmbH | Stereo audio-signal processing system |
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 |
KR101106026B1 (ko) * | 2003-10-30 | 2012-01-17 | 돌비 인터네셔널 에이비 | 오디오 신호 인코딩 또는 디코딩 |
ES2336558T3 (es) * | 2004-06-10 | 2010-04-14 | Panasonic Corporation | Sistema y metodo para la reconfiguracion en el tiempo de funcionamiento. |
EP1691348A1 (en) * | 2005-02-14 | 2006-08-16 | Ecole Polytechnique Federale De Lausanne | Parametric joint-coding of audio sources |
US8086451B2 (en) * | 2005-04-20 | 2011-12-27 | Qnx Software Systems Co. | System for improving speech intelligibility through high frequency compression |
EP1722360B1 (en) * | 2005-05-13 | 2014-03-19 | Harman Becker Automotive Systems GmbH | Audio enhancement system and method |
DE202005012816U1 (de) * | 2005-08-08 | 2006-05-04 | Jünger Audio-Studiotechnik GmbH | Elektronisches Gerät zur Aussteuerung von Audiosignalen sowie entsprechendes computerlesbares Speichermedium |
JP4627548B2 (ja) * | 2005-09-08 | 2011-02-09 | パイオニア株式会社 | 帯域拡張装置、帯域拡張方法および帯域拡張プログラム |
US7953605B2 (en) * | 2005-10-07 | 2011-05-31 | Deepen Sinha | Method and apparatus for audio encoding and decoding using wideband psychoacoustic modeling and bandwidth extension |
BRPI0619258A2 (pt) * | 2005-11-30 | 2011-09-27 | Matsushita Electric Ind Co Ltd | aparelho de codificação de sub-banda e método de codificação de sub-banda |
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US9159333B2 (en) | 2006-06-21 | 2015-10-13 | Samsung Electronics Co., Ltd. | Method and apparatus for adaptively encoding and decoding high frequency band |
US8036903B2 (en) | 2006-10-18 | 2011-10-11 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Analysis filterbank, synthesis filterbank, encoder, de-coder, mixer and conferencing system |
US8041578B2 (en) | 2006-10-18 | 2011-10-18 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Encoding an information signal |
US8417532B2 (en) | 2006-10-18 | 2013-04-09 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Encoding an information signal |
US8126721B2 (en) | 2006-10-18 | 2012-02-28 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Encoding an information signal |
US8438015B2 (en) | 2006-10-25 | 2013-05-07 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples |
USRE50158E1 (en) | 2006-10-25 | 2024-10-01 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples |
BRPI0818927A2 (pt) * | 2007-11-02 | 2015-06-16 | Huawei Tech Co Ltd | Método e aparelho para a decodificação de áudio |
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US9275648B2 (en) | 2007-12-18 | 2016-03-01 | Lg Electronics Inc. | Method and apparatus for processing audio signal using spectral data of audio signal |
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CN103377655A (zh) * | 2012-04-16 | 2013-10-30 | 三星电子株式会社 | 提高音质的设备和方法 |
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CN114079603A (zh) * | 2020-08-13 | 2022-02-22 | 华为技术有限公司 | 一种信号折叠方法及设备 |
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