CN1288557A - 解码方法和包括自适应后置滤波器的系统 - Google Patents
解码方法和包括自适应后置滤波器的系统 Download PDFInfo
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- CN1288557A CN1288557A CN99802250A CN99802250A CN1288557A CN 1288557 A CN1288557 A CN 1288557A CN 99802250 A CN99802250 A CN 99802250A CN 99802250 A CN99802250 A CN 99802250A CN 1288557 A CN1288557 A CN 1288557A
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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
- G10L19/16—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
-
- 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
-
- 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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/93—Discriminating between voiced and unvoiced parts of speech signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
- H04W28/22—Negotiating communication rate
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Computational Linguistics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Quality & Reliability (AREA)
- Computer Networks & Wireless Communication (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Filters That Use Time-Delay Elements (AREA)
Abstract
Description
帧信号 | 低平均位速率时的b值 | 高平均位速率时的b值 |
非话音 | 0 | 0 |
话音 | 0.15β | 0.1β |
强话音 | 0.3β | 0.2β |
Claims (14)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI980132 | 1998-01-21 | ||
FI980132A FI980132A (fi) | 1998-01-21 | 1998-01-21 | Adaptoituva jälkisuodatin |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1288557A true CN1288557A (zh) | 2001-03-21 |
CN1192356C CN1192356C (zh) | 2005-03-09 |
Family
ID=8550488
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB998022500A Expired - Fee Related CN1192356C (zh) | 1998-01-21 | 1999-01-20 | 解码方法和包括自适应后置滤波器的系统 |
Country Status (10)
Country | Link |
---|---|
US (1) | US6584441B1 (zh) |
EP (1) | EP1050040B1 (zh) |
JP (1) | JP4275855B2 (zh) |
KR (1) | KR100575193B1 (zh) |
CN (1) | CN1192356C (zh) |
AU (1) | AU2056299A (zh) |
BR (1) | BR9907031B1 (zh) |
DE (1) | DE69932593T2 (zh) |
FI (1) | FI980132A (zh) |
WO (1) | WO1999038155A1 (zh) |
Cited By (10)
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WO2009115032A1 (zh) * | 2008-03-20 | 2009-09-24 | 华为技术有限公司 | 一种语音信号处理方法及装置 |
CN101120399B (zh) * | 2005-01-31 | 2011-07-06 | 斯凯普有限公司 | 加权叠加方法 |
CN101548319B (zh) * | 2006-12-13 | 2012-06-20 | 松下电器产业株式会社 | 后置滤波器以及滤波方法 |
CN101501759B (zh) * | 2006-06-30 | 2012-08-15 | 弗劳恩霍夫应用研究促进协会 | 具有动态可变规整特性的音频编码器、音频解码器和音频处理器 |
CN101622666B (zh) * | 2007-03-02 | 2012-08-15 | 艾利森电话股份有限公司 | 非因果后置滤波器 |
CN103098129A (zh) * | 2010-07-02 | 2013-05-08 | 杜比国际公司 | 选择性低音后置滤波器 |
CN103930946A (zh) * | 2011-06-28 | 2014-07-16 | 奥兰吉公司 | 延迟优化的重叠变换,编码/解码加权窗口 |
CN105023579A (zh) * | 2014-04-30 | 2015-11-04 | 中国电信股份有限公司 | 语音通信中语音编码实现方法、装置和通信终端 |
CN105122358A (zh) * | 2013-01-29 | 2015-12-02 | 弗劳恩霍夫应用研究促进协会 | 用于处理编码信号的装置和方法与用于产生编码信号的编码器和方法 |
WO2016141731A1 (zh) * | 2015-03-09 | 2016-09-15 | 华为技术有限公司 | 确定声道间时间差参数的方法和装置 |
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US7072832B1 (en) * | 1998-08-24 | 2006-07-04 | Mindspeed Technologies, Inc. | System for speech encoding having an adaptive encoding arrangement |
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) |
US6691085B1 (en) | 2000-10-18 | 2004-02-10 | Nokia Mobile Phones Ltd. | Method and system for estimating artificial high band signal in speech codec using voice activity information |
US20030028386A1 (en) * | 2001-04-02 | 2003-02-06 | Zinser Richard L. | Compressed domain universal transcoder |
US7512535B2 (en) * | 2001-10-03 | 2009-03-31 | Broadcom Corporation | Adaptive postfiltering methods and systems for decoding speech |
JP4108317B2 (ja) * | 2001-11-13 | 2008-06-25 | 日本電気株式会社 | 符号変換方法及び装置とプログラム並びに記憶媒体 |
US7630889B2 (en) | 2003-04-08 | 2009-12-08 | Nec Corporation | Code conversion method and device |
CN100334874C (zh) * | 2003-07-02 | 2007-08-29 | 矽统科技股份有限公司 | 具滤噪声步骤的图框种类侦测方法 |
KR100554164B1 (ko) * | 2003-07-11 | 2006-02-22 | 학교법인연세대학교 | 서로 다른 celp 방식의 음성 코덱 간의 상호부호화장치 및 그 방법 |
WO2005041170A1 (en) * | 2003-10-24 | 2005-05-06 | Nokia Corpration | Noise-dependent postfiltering |
US7478040B2 (en) * | 2003-10-24 | 2009-01-13 | Broadcom Corporation | Method for adaptive filtering |
US9413321B2 (en) | 2004-08-10 | 2016-08-09 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US10158337B2 (en) | 2004-08-10 | 2018-12-18 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US8284955B2 (en) | 2006-02-07 | 2012-10-09 | Bongiovi Acoustics Llc | System and method for digital signal processing |
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US7386445B2 (en) * | 2005-01-18 | 2008-06-10 | Nokia Corporation | Compensation of transient effects in transform coding |
CN101263554B (zh) * | 2005-07-22 | 2011-12-28 | 法国电信公司 | 在比特率分级和带宽分级的音频解码中的比特率切换方法 |
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DE602006015328D1 (de) * | 2006-11-03 | 2010-08-19 | Psytechnics Ltd | Abtastfehlerkompensation |
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JP2009063928A (ja) * | 2007-09-07 | 2009-03-26 | Fujitsu Ltd | 補間方法、情報処理装置 |
JP2010092057A (ja) * | 2009-10-29 | 2010-04-22 | Fujitsu Ltd | 受話音声処理装置及び受話音声再生装置 |
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1998
- 1998-01-21 FI FI980132A patent/FI980132A/fi unknown
-
1999
- 1999-01-20 AU AU20562/99A patent/AU2056299A/en not_active Abandoned
- 1999-01-20 EP EP99900896A patent/EP1050040B1/en not_active Expired - Lifetime
- 1999-01-20 KR KR1020007007961A patent/KR100575193B1/ko not_active IP Right Cessation
- 1999-01-20 DE DE69932593T patent/DE69932593T2/de not_active Expired - Lifetime
- 1999-01-20 JP JP2000528979A patent/JP4275855B2/ja not_active Expired - Fee Related
- 1999-01-20 BR BRPI9907031-6A patent/BR9907031B1/pt not_active IP Right Cessation
- 1999-01-20 CN CNB998022500A patent/CN1192356C/zh not_active Expired - Fee Related
- 1999-01-20 WO PCT/FI1999/000037 patent/WO1999038155A1/en active IP Right Grant
- 1999-01-20 US US09/234,099 patent/US6584441B1/en not_active Expired - Lifetime
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101120399B (zh) * | 2005-01-31 | 2011-07-06 | 斯凯普有限公司 | 加权叠加方法 |
CN101501759B (zh) * | 2006-06-30 | 2012-08-15 | 弗劳恩霍夫应用研究促进协会 | 具有动态可变规整特性的音频编码器、音频解码器和音频处理器 |
CN101548319B (zh) * | 2006-12-13 | 2012-06-20 | 松下电器产业株式会社 | 后置滤波器以及滤波方法 |
CN101622666B (zh) * | 2007-03-02 | 2012-08-15 | 艾利森电话股份有限公司 | 非因果后置滤波器 |
WO2009115032A1 (zh) * | 2008-03-20 | 2009-09-24 | 华为技术有限公司 | 一种语音信号处理方法及装置 |
CN105244035A (zh) * | 2010-07-02 | 2016-01-13 | 杜比国际公司 | 选择性低音后置滤波器 |
CN105261370B (zh) * | 2010-07-02 | 2018-12-04 | 杜比国际公司 | 选择性低音后置滤波器 |
CN105390140B (zh) * | 2010-07-02 | 2019-05-17 | 杜比国际公司 | 用于音频信号的音高增强滤波器 |
CN103098129B (zh) * | 2010-07-02 | 2015-11-25 | 杜比国际公司 | 选择性低音后置滤波器 |
CN105244035B (zh) * | 2010-07-02 | 2019-03-12 | 杜比国际公司 | 选择性低音后置滤波器 |
CN103098129A (zh) * | 2010-07-02 | 2013-05-08 | 杜比国际公司 | 选择性低音后置滤波器 |
CN105261370A (zh) * | 2010-07-02 | 2016-01-20 | 杜比国际公司 | 选择性低音后置滤波器 |
CN105390140A (zh) * | 2010-07-02 | 2016-03-09 | 杜比国际公司 | 用于音频信号的音高增强滤波器 |
CN103930946B (zh) * | 2011-06-28 | 2016-12-14 | 奥兰吉公司 | 延迟优化的重叠变换,编码/解码加权窗口 |
CN103930946A (zh) * | 2011-06-28 | 2014-07-16 | 奥兰吉公司 | 延迟优化的重叠变换,编码/解码加权窗口 |
CN105122358B (zh) * | 2013-01-29 | 2019-02-15 | 弗劳恩霍夫应用研究促进协会 | 用于处理编码信号的装置和方法与用于产生编码信号的编码器和方法 |
CN105122358A (zh) * | 2013-01-29 | 2015-12-02 | 弗劳恩霍夫应用研究促进协会 | 用于处理编码信号的装置和方法与用于产生编码信号的编码器和方法 |
CN105023579A (zh) * | 2014-04-30 | 2015-11-04 | 中国电信股份有限公司 | 语音通信中语音编码实现方法、装置和通信终端 |
WO2016141731A1 (zh) * | 2015-03-09 | 2016-09-15 | 华为技术有限公司 | 确定声道间时间差参数的方法和装置 |
RU2682026C1 (ru) * | 2015-03-09 | 2019-03-14 | Хуавэй Текнолоджиз Ко., Лтд. | Способ и устройство для определения параметра межканальной разности времени |
US10388288B2 (en) | 2015-03-09 | 2019-08-20 | Huawei Technologies Co., Ltd. | Method and apparatus for determining inter-channel time difference parameter |
Also Published As
Publication number | Publication date |
---|---|
US6584441B1 (en) | 2003-06-24 |
EP1050040B1 (en) | 2006-08-02 |
BR9907031B1 (pt) | 2011-05-31 |
BR9907031A (pt) | 2000-10-17 |
AU2056299A (en) | 1999-08-09 |
CN1192356C (zh) | 2005-03-09 |
FI980132A (fi) | 1999-07-22 |
EP1050040A1 (en) | 2000-11-08 |
JP2002501225A (ja) | 2002-01-15 |
JP4275855B2 (ja) | 2009-06-10 |
DE69932593D1 (de) | 2006-09-14 |
FI980132A0 (fi) | 1998-01-21 |
WO1999038155A1 (en) | 1999-07-29 |
KR100575193B1 (ko) | 2006-04-28 |
DE69932593T2 (de) | 2006-12-07 |
KR20010024869A (ko) | 2001-03-26 |
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