CN1377499A - 采用可变时间/频率分辨率和时间/频率转换的有效频谱包络编码方法 - Google Patents
采用可变时间/频率分辨率和时间/频率转换的有效频谱包络编码方法 Download PDFInfo
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- CN1377499A CN1377499A CN00813602A CN00813602A CN1377499A CN 1377499 A CN1377499 A CN 1377499A CN 00813602 A CN00813602 A CN 00813602A CN 00813602 A CN00813602 A CN 00813602A CN 1377499 A CN1377499 A CN 1377499A
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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
- G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
- G10L19/025—Detection of transients or attacks for time/frequency resolution switching
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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
- G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
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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
- G10L19/0208—Subband vocoders
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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
- G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
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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
- G10L19/032—Quantisation or dequantisation of spectral components
- G10L19/035—Scalar quantisation
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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
- G10L21/00—Processing of the speech or voice signal 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
- G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
Abstract
Description
Claims (17)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9903552A SE9903552D0 (sv) | 1999-01-27 | 1999-10-01 | Efficient spectral envelope coding using dynamic scalefactor grouping and time/frequency switching |
SE99035529 | 1999-10-01 | ||
PCT/SE2000/000158 WO2000045378A2 (en) | 1999-01-27 | 2000-01-26 | Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching |
WOPCT/SE00/00158 | 2000-01-26 |
Publications (2)
Publication Number | Publication Date |
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CN1377499A true CN1377499A (zh) | 2002-10-30 |
CN1172293C CN1172293C (zh) | 2004-10-20 |
Family
ID=20417226
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB008136025A Expired - Lifetime CN1172293C (zh) | 1999-10-01 | 2000-09-29 | 有效频谱包络编码方法及其编解码设备 |
Country Status (14)
Country | Link |
---|---|
US (3) | US6978236B1 (zh) |
EP (1) | EP1216474B1 (zh) |
JP (3) | JP4035631B2 (zh) |
CN (1) | CN1172293C (zh) |
AT (1) | ATE271250T1 (zh) |
AU (1) | AU7821200A (zh) |
BR (1) | BRPI0014642B1 (zh) |
DE (1) | DE60012198T2 (zh) |
DK (1) | DK1216474T3 (zh) |
ES (1) | ES2223591T3 (zh) |
HK (1) | HK1049401B (zh) |
PT (1) | PT1216474E (zh) |
RU (1) | RU2236046C2 (zh) |
WO (1) | WO2001026095A1 (zh) |
Cited By (14)
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WO2009089728A1 (fr) * | 2007-12-27 | 2009-07-23 | Huawei Technologies Co., Ltd. | Procédé de reconstruction de bande de haute fréquence, codeur et décodeur associés |
CN101149928B (zh) * | 2006-09-20 | 2010-06-02 | 富士通株式会社 | 声音信号处理方法、声音信号处理设备及计算机程序 |
CN101071569B (zh) * | 2003-04-30 | 2011-06-22 | 杜比国际公司 | 基于复指数调制的滤波器组的高级处理和自适应时间信号传送方法 |
CN101866649B (zh) * | 2009-04-15 | 2012-04-04 | 华为技术有限公司 | 语音编码处理方法与装置、语音解码处理方法与装置、通信系统 |
CN101800049B (zh) * | 2003-09-16 | 2012-05-23 | 松下电器产业株式会社 | 编码装置和译码装置 |
CN102844809A (zh) * | 2010-01-12 | 2012-12-26 | 弗劳恩霍弗实用研究促进协会 | 基于先前解码频谱值的范数来获得脉络子区值的音频编码器、音频解码器、编码及解码音频信息的方法及计算机程序 |
CN101218850B (zh) * | 2005-07-08 | 2013-01-30 | 奥迪康有限公司 | 消除听力装置中的反馈和噪声的系统及方法 |
CN102007537B (zh) * | 2008-07-11 | 2013-08-28 | 弗劳恩霍弗实用研究促进协会 | 时间扭曲轮廓计算方法及计算器、音频编码方法及编码器 |
CN105261373A (zh) * | 2015-09-16 | 2016-01-20 | 深圳广晟信源技术有限公司 | 用于带宽扩展编码的自适应栅格构造方法和装置 |
CN105280190A (zh) * | 2015-09-16 | 2016-01-27 | 深圳广晟信源技术有限公司 | 带宽扩展编码和解码方法以及装置 |
CN105431902A (zh) * | 2013-06-10 | 2016-03-23 | 弗朗霍夫应用科学研究促进协会 | 用于通过应用分布量化和编码建模累积和表示的音频信号包络编码、处理和解码的装置和方法 |
US9978380B2 (en) | 2009-10-20 | 2018-05-22 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Audio encoder, audio decoder, method for encoding an audio information, method for decoding an audio information and computer program using a detection of a group of previously-decoded spectral values |
CN108828427A (zh) * | 2018-03-19 | 2018-11-16 | 深圳市共进电子股份有限公司 | 信号完整性测试的判据查找方法、装置、设备及存储介质 |
CN111210832A (zh) * | 2018-11-22 | 2020-05-29 | 广州广晟数码技术有限公司 | 基于频谱包络模板的带宽扩展音频编解码方法及装置 |
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KR100830857B1 (ko) * | 2001-01-19 | 2008-05-22 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 오디오 전송 시스템, 오디오 수신기, 전송 방법, 수신 방법 및 음성 디코더 |
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JP3469567B2 (ja) * | 2001-09-03 | 2003-11-25 | 三菱電機株式会社 | 音響符号化装置、音響復号化装置、音響符号化方法及び音響復号化方法 |
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KR100949232B1 (ko) | 2002-01-30 | 2010-03-24 | 파나소닉 주식회사 | 인코딩 장치, 디코딩 장치 및 그 방법 |
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WO2001026095A1 (en) | 2001-04-12 |
ATE271250T1 (de) | 2004-07-15 |
RU2236046C2 (ru) | 2004-09-10 |
BR0014642A (pt) | 2002-06-18 |
JP4334526B2 (ja) | 2009-09-30 |
AU7821200A (en) | 2001-05-10 |
JP4628921B2 (ja) | 2011-02-09 |
JP2006031053A (ja) | 2006-02-02 |
US20060031065A1 (en) | 2006-02-09 |
EP1216474B1 (en) | 2004-07-14 |
HK1049401A1 (en) | 2003-05-09 |
US20060031064A1 (en) | 2006-02-09 |
JP2003529787A (ja) | 2003-10-07 |
DE60012198D1 (de) | 2004-08-19 |
DK1216474T3 (da) | 2004-10-04 |
JP2006065342A (ja) | 2006-03-09 |
ES2223591T3 (es) | 2005-03-01 |
BRPI0014642B1 (pt) | 2016-04-26 |
US6978236B1 (en) | 2005-12-20 |
HK1049401B (zh) | 2005-11-18 |
PT1216474E (pt) | 2004-11-30 |
EP1216474A1 (en) | 2002-06-26 |
US7181389B2 (en) | 2007-02-20 |
JP4035631B2 (ja) | 2008-01-23 |
DE60012198T2 (de) | 2005-08-18 |
CN1172293C (zh) | 2004-10-20 |
US7191121B2 (en) | 2007-03-13 |
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