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DE60308567D1 - Dekodierungsgerät, Kodierungsgerät, Dekodierungsverfahren und Kodierungsverfahren - Google Patents

Dekodierungsgerät, Kodierungsgerät, Dekodierungsverfahren und Kodierungsverfahren

Info

Publication number
DE60308567D1
DE60308567D1 DE60308567T DE60308567T DE60308567D1 DE 60308567 D1 DE60308567 D1 DE 60308567D1 DE 60308567 T DE60308567 T DE 60308567T DE 60308567 T DE60308567 T DE 60308567T DE 60308567 D1 DE60308567 D1 DE 60308567D1
Authority
DE
Germany
Prior art keywords
coding
decoding
decoding device
decoding method
coding method
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE60308567T
Other languages
English (en)
Other versions
DE60308567T2 (de
Inventor
Kei Kikuiri
Nobuhiko Naka
Tomoyuki Ohya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Docomo Inc
Original Assignee
NTT Docomo Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NTT Docomo Inc filed Critical NTT Docomo Inc
Application granted granted Critical
Publication of DE60308567D1 publication Critical patent/DE60308567D1/de
Publication of DE60308567T2 publication Critical patent/DE60308567T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • G10L19/02—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE60308567T 2002-02-08 2003-02-06 Dekodierungsgerät, Kodierungsgerät, Dekodierungsverfahren und Kodierungsverfahren Expired - Lifetime DE60308567T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002033154 2002-02-08
JP2002033154A JP4290917B2 (ja) 2002-02-08 2002-02-08 復号装置、符号化装置、復号方法、及び、符号化方法

Publications (2)

Publication Number Publication Date
DE60308567D1 true DE60308567D1 (de) 2006-11-09
DE60308567T2 DE60308567T2 (de) 2007-06-06

Family

ID=27606554

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60308567T Expired - Lifetime DE60308567T2 (de) 2002-02-08 2003-02-06 Dekodierungsgerät, Kodierungsgerät, Dekodierungsverfahren und Kodierungsverfahren

Country Status (5)

Country Link
US (1) US7406410B2 (de)
EP (1) EP1335353B1 (de)
JP (1) JP4290917B2 (de)
CN (1) CN1220972C (de)
DE (1) DE60308567T2 (de)

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KR100668300B1 (ko) * 2003-07-09 2007-01-12 삼성전자주식회사 비트율 확장 음성 부호화 및 복호화 장치와 그 방법
US20060015329A1 (en) * 2004-07-19 2006-01-19 Chu Wai C Apparatus and method for audio coding
JP4533386B2 (ja) * 2004-07-22 2010-09-01 富士通株式会社 オーディオ符号化装置及びオーディオ符号化方法
JP4558734B2 (ja) * 2004-07-28 2010-10-06 パナソニック株式会社 信号復号化装置
JP4781272B2 (ja) * 2004-09-17 2011-09-28 パナソニック株式会社 音声符号化装置、音声復号装置、通信装置及び音声符号化方法
KR100707184B1 (ko) * 2005-03-10 2007-04-13 삼성전자주식회사 오디오 부호화 및 복호화 장치와 그 방법 및 기록 매체
KR100707186B1 (ko) * 2005-03-24 2007-04-13 삼성전자주식회사 오디오 부호화 및 복호화 장치와 그 방법 및 기록 매체
KR100956525B1 (ko) * 2005-04-01 2010-05-07 퀄컴 인코포레이티드 스피치 신호의 스플릿 대역 인코딩을 위한 방법 및 장치
US8892448B2 (en) 2005-04-22 2014-11-18 Qualcomm Incorporated Systems, methods, and apparatus for gain factor smoothing
ES2327566T3 (es) 2005-04-28 2009-10-30 Siemens Aktiengesellschaft Procedimiento y dispositivo para la supresion de ruidos.
CN101199005B (zh) * 2005-06-17 2011-11-09 松下电器产业株式会社 后置滤波器、解码装置以及后置滤波处理方法
FR2888704A1 (de) * 2005-07-12 2007-01-19 France Telecom
FR2897733A1 (fr) 2006-02-20 2007-08-24 France Telecom Procede de discrimination et d'attenuation fiabilisees des echos d'un signal numerique dans un decodeur et dispositif correspondant
WO2007105586A1 (ja) * 2006-03-10 2007-09-20 Matsushita Electric Industrial Co., Ltd. 符号化装置および符号化方法
US8370138B2 (en) * 2006-03-17 2013-02-05 Panasonic Corporation Scalable encoding device and scalable encoding method including quality improvement of a decoded signal
DE602006002381D1 (de) * 2006-04-24 2008-10-02 Nero Ag Erweiterte vorrichtung zur kodierung digitaler audiodaten
US20080059154A1 (en) * 2006-09-01 2008-03-06 Nokia Corporation Encoding an audio signal
DE102006051673A1 (de) * 2006-11-02 2008-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Nachbearbeiten von Spektralwerten und Encodierer und Decodierer für Audiosignale
CN101325058B (zh) * 2007-06-15 2012-04-25 华为技术有限公司 语音编码发送和接收解码的方法及装置
US7885819B2 (en) * 2007-06-29 2011-02-08 Microsoft Corporation Bitstream syntax for multi-process audio decoding
US20090076828A1 (en) * 2007-08-27 2009-03-19 Texas Instruments Incorporated System and method of data encoding
CN101458930B (zh) * 2007-12-12 2011-09-14 华为技术有限公司 带宽扩展中激励信号的生成及信号重建方法和装置
KR101655913B1 (ko) * 2008-09-17 2016-09-08 오렌지 디지털 오디오 신호에서의 프리-에코 감쇠
KR101643434B1 (ko) * 2008-09-18 2016-07-27 미쓰비시덴키 가부시키가이샤 송신 장치 및 수신 장치
JP4977157B2 (ja) * 2009-03-06 2012-07-18 株式会社エヌ・ティ・ティ・ドコモ 音信号符号化方法、音信号復号方法、符号化装置、復号装置、音信号処理システム、音信号符号化プログラム、及び、音信号復号プログラム
WO2010108332A1 (zh) * 2009-03-27 2010-09-30 华为技术有限公司 编码和解码方法及装置
GB2473267A (en) * 2009-09-07 2011-03-09 Nokia Corp Processing audio signals to reduce noise
US8977546B2 (en) 2009-10-20 2015-03-10 Panasonic Intellectual Property Corporation Of America Encoding device, decoding device and method for both
FR3000328A1 (fr) * 2012-12-21 2014-06-27 France Telecom Attenuation efficace de pre-echos dans un signal audionumerique
CN104021796B (zh) * 2013-02-28 2017-06-20 华为技术有限公司 语音增强处理方法和装置
EP2980797A1 (de) 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiodecodierer, Verfahren und Computerprogramm mit Zero-Input-Response zur Erzeugung eines sanften Übergangs

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Publication number Priority date Publication date Assignee Title
FR2729245B1 (fr) * 1995-01-06 1997-04-11 Lamblin Claude Procede de codage de parole a prediction lineaire et excitation par codes algebriques
JP3307138B2 (ja) 1995-02-27 2002-07-24 ソニー株式会社 信号符号化方法及び装置、並びに信号復号化方法及び装置
JP3139602B2 (ja) 1995-03-24 2001-03-05 日本電信電話株式会社 音響信号符号化方法及び復号化方法
JP3335852B2 (ja) 1996-09-26 2002-10-21 株式会社東芝 聴覚特性を利用した音声符号化方法、ゲイン制御方法およびゲイン符号化／復号化方法
DE19736669C1 (de) * 1997-08-22 1998-10-22 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Erfassen eines Anschlags in einem zeitdiskreten Audiosignal sowie Vorrichtung und Verfahren zum Codieren eines Audiosignals
US6311154B1 (en) * 1998-12-30 2001-10-30 Nokia Mobile Phones Limited Adaptive windows for analysis-by-synthesis CELP-type speech coding
JP2000259197A (ja) 1999-03-10 2000-09-22 Matsushita Electric Ind Co Ltd オーディオ符号化におけるアタック／リリース信号の検出および修正方法
US6691082B1 (en) * 1999-08-03 2004-02-10 Lucent Technologies Inc Method and system for sub-band hybrid coding
US6496794B1 (en) * 1999-11-22 2002-12-17 Motorola, Inc. Method and apparatus for seamless multi-rate speech coding

Also Published As

Publication number Publication date
DE60308567T2 (de) 2007-06-06
EP1335353A3 (de) 2005-01-12
JP2003233400A (ja) 2003-08-22
US20030154074A1 (en) 2003-08-14
US7406410B2 (en) 2008-07-29
JP4290917B2 (ja) 2009-07-08
EP1335353B1 (de) 2006-09-27
CN1220972C (zh) 2005-09-28
CN1437184A (zh) 2003-08-20
EP1335353A2 (de) 2003-08-13

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