CN1524400A - 用于低比特率音频编码应用的高效可标度参数立体声编码 - Google Patents
用于低比特率音频编码应用的高效可标度参数立体声编码 Download PDFInfo
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- CN1524400A CN1524400A CNA028136462A CN02813646A CN1524400A CN 1524400 A CN1524400 A CN 1524400A CN A028136462 A CNA028136462 A CN A028136462A CN 02813646 A CN02813646 A CN 02813646A CN 1524400 A CN1524400 A CN 1524400A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation
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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
- G10L19/04—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
- G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
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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
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S1/00—Two-channel systems
- H04S1/007—Two-channel systems in which the audio signals are in digital form
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
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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
- 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
Abstract
Description
Claims (25)
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE01024819 | 2001-07-10 | ||
SE0102481A SE0102481D0 (sv) | 2001-07-10 | 2001-07-10 | Parametric stereo coding for low bitrate applications |
SE02007961 | 2002-03-15 | ||
SE0200796A SE0200796D0 (sv) | 2002-03-15 | 2002-03-15 | Parametic Stereo Coding for Low Bitrate Applications |
SE0202159A SE0202159D0 (sv) | 2001-07-10 | 2002-07-09 | Efficientand scalable parametric stereo coding for low bitrate applications |
SE02021590 | 2002-07-09 | ||
PCT/SE2002/001372 WO2003007656A1 (en) | 2001-07-10 | 2002-07-10 | Efficient and scalable parametric stereo coding for low bitrate applications |
Related Child Applications (6)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2005101099602A Division CN1758338B (zh) | 2001-07-10 | 2002-07-10 | 用于低比特率音频编码应用的高效可标度参数立体声编码 |
CN2005101099585A Division CN1758336B (zh) | 2001-07-10 | 2002-07-10 | 用于低比特率音频编码应用的高效可标度参数立体声编码 |
CN200510109959XA Division CN1758337B (zh) | 2001-07-10 | 2002-07-10 | 用于低比特率音频编码应用的高效可标度参数立体声编码 |
CN2005101099570A Division CN1758335B (zh) | 2001-07-10 | 2002-07-10 | 用于低比特率音频编码应用的高效可标度参数立体声编码 |
CN2010102129767A Division CN101996634B (zh) | 2001-07-10 | 2002-07-10 | 用于低比特率音频编码应用的高效可标度参数立体声编码 |
CN2010101629421A Division CN101887724B (zh) | 2001-07-10 | 2002-07-10 | 编码功率频谱包络的解码方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1524400A true CN1524400A (zh) | 2004-08-25 |
CN1279790C CN1279790C (zh) | 2006-10-11 |
Family
ID=27354735
Family Applications (7)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2010101629421A Expired - Lifetime CN101887724B (zh) | 2001-07-10 | 2002-07-10 | 编码功率频谱包络的解码方法 |
CN2010102129767A Expired - Lifetime CN101996634B (zh) | 2001-07-10 | 2002-07-10 | 用于低比特率音频编码应用的高效可标度参数立体声编码 |
CNB028136462A Expired - Lifetime CN1279790C (zh) | 2001-07-10 | 2002-07-10 | 用于低比特率音频编码应用的高效可标度参数立体声编码 |
CN2005101099585A Expired - Lifetime CN1758336B (zh) | 2001-07-10 | 2002-07-10 | 用于低比特率音频编码应用的高效可标度参数立体声编码 |
CN2005101099602A Expired - Lifetime CN1758338B (zh) | 2001-07-10 | 2002-07-10 | 用于低比特率音频编码应用的高效可标度参数立体声编码 |
CN200510109959XA Expired - Lifetime CN1758337B (zh) | 2001-07-10 | 2002-07-10 | 用于低比特率音频编码应用的高效可标度参数立体声编码 |
CN2005101099570A Expired - Lifetime CN1758335B (zh) | 2001-07-10 | 2002-07-10 | 用于低比特率音频编码应用的高效可标度参数立体声编码 |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2010101629421A Expired - Lifetime CN101887724B (zh) | 2001-07-10 | 2002-07-10 | 编码功率频谱包络的解码方法 |
CN2010102129767A Expired - Lifetime CN101996634B (zh) | 2001-07-10 | 2002-07-10 | 用于低比特率音频编码应用的高效可标度参数立体声编码 |
Family Applications After (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2005101099585A Expired - Lifetime CN1758336B (zh) | 2001-07-10 | 2002-07-10 | 用于低比特率音频编码应用的高效可标度参数立体声编码 |
CN2005101099602A Expired - Lifetime CN1758338B (zh) | 2001-07-10 | 2002-07-10 | 用于低比特率音频编码应用的高效可标度参数立体声编码 |
CN200510109959XA Expired - Lifetime CN1758337B (zh) | 2001-07-10 | 2002-07-10 | 用于低比特率音频编码应用的高效可标度参数立体声编码 |
CN2005101099570A Expired - Lifetime CN1758335B (zh) | 2001-07-10 | 2002-07-10 | 用于低比特率音频编码应用的高效可标度参数立体声编码 |
Country Status (13)
Country | Link |
---|---|
US (8) | US7382886B2 (zh) |
EP (9) | EP2249336B1 (zh) |
JP (10) | JP4447317B2 (zh) |
KR (5) | KR100666815B1 (zh) |
CN (7) | CN101887724B (zh) |
AT (5) | ATE443909T1 (zh) |
DE (5) | DE60206390T2 (zh) |
DK (4) | DK3104367T3 (zh) |
ES (7) | ES2650715T3 (zh) |
HK (8) | HK1062624A1 (zh) |
PT (2) | PT3104367T (zh) |
SE (1) | SE0202159D0 (zh) |
WO (1) | WO2003007656A1 (zh) |
Cited By (11)
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CN1993733B (zh) * | 2005-04-19 | 2010-12-08 | 杜比国际公司 | 空间音频参数量化器、去量化器及参数量化、去量化方法 |
CN101149925B (zh) * | 2007-11-06 | 2011-02-16 | 武汉大学 | 一种用于参数立体声编码的空间参数选取方法 |
CN101091206B (zh) * | 2004-12-28 | 2011-06-01 | 松下电器产业株式会社 | 语音编码装置和语音编码方法 |
CN101223575B (zh) * | 2005-07-14 | 2011-09-21 | 皇家飞利浦电子股份有限公司 | 音频编码和解码 |
CN101199003B (zh) * | 2005-04-22 | 2012-01-11 | 高通股份有限公司 | 用于增益因数衰减的系统、方法和设备 |
CN101517637B (zh) * | 2006-09-18 | 2012-08-15 | 皇家飞利浦电子股份有限公司 | 音频编解码器 、编解码方法、 集线器、 发送接收器、 发送接收方法、通信系统、 播放设备 |
CN101809656B (zh) * | 2008-07-29 | 2013-03-13 | 松下电器产业株式会社 | 音响编码装置、音响解码装置、音响编码解码装置及会议系统 |
CN102272830B (zh) * | 2009-01-13 | 2013-04-03 | 松下电器产业株式会社 | 音响信号解码装置及平衡调整方法 |
CN104364843A (zh) * | 2012-06-14 | 2015-02-18 | 杜比国际公司 | 用于多通道音频的平滑配置切换 |
CN107068159A (zh) * | 2012-04-27 | 2017-08-18 | 株式会社Ntt都科摩 | 声音解码装置 |
CN110010140A (zh) * | 2013-04-05 | 2019-07-12 | 杜比国际公司 | 立体声音频编码器和解码器 |
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US7644003B2 (en) | 2001-05-04 | 2010-01-05 | Agere Systems Inc. | Cue-based audio coding/decoding |
SE0202159D0 (sv) | 2001-07-10 | 2002-07-09 | Coding Technologies Sweden Ab | Efficientand scalable parametric stereo coding for low bitrate applications |
US8605911B2 (en) | 2001-07-10 | 2013-12-10 | Dolby International Ab | Efficient and scalable parametric stereo coding for low bitrate audio coding applications |
US7469206B2 (en) * | 2001-11-29 | 2008-12-23 | Coding Technologies Ab | Methods for improving high frequency reconstruction |
DE60306512T2 (de) * | 2002-04-22 | 2007-06-21 | Koninklijke Philips Electronics N.V. | Parametrische beschreibung von mehrkanal-audio |
US7933415B2 (en) | 2002-04-22 | 2011-04-26 | Koninklijke Philips Electronics N.V. | Signal synthesizing |
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 |
ATE357043T1 (de) * | 2002-10-14 | 2007-04-15 | Thomson Licensing | Verfahren zum kodieren und dekodieren von der breite einer schallquelle in einer audioszene |
JP4431568B2 (ja) * | 2003-02-11 | 2010-03-17 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 音声符号化 |
FI118247B (fi) | 2003-02-26 | 2007-08-31 | Fraunhofer Ges Forschung | Menetelmä luonnollisen tai modifioidun tilavaikutelman aikaansaamiseksi monikanavakuuntelussa |
CN1748443B (zh) | 2003-03-04 | 2010-09-22 | 诺基亚有限公司 | 多声道音频扩展支持 |
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CN1993733B (zh) * | 2005-04-19 | 2010-12-08 | 杜比国际公司 | 空间音频参数量化器、去量化器及参数量化、去量化方法 |
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