EP2104095A4 - Procédé et appareil permettant d'ajuster la qualité de la quantification dans un codeur et décodeur - Google Patents

Procédé et appareil permettant d'ajuster la qualité de la quantification dans un codeur et décodeur

Info

Publication number
EP2104095A4
EP2104095A4 EP07855801A EP07855801A EP2104095A4 EP 2104095 A4 EP2104095 A4 EP 2104095A4 EP 07855801 A EP07855801 A EP 07855801A EP 07855801 A EP07855801 A EP 07855801A EP 2104095 A4 EP2104095 A4 EP 2104095A4
Authority
EP
European Patent Office
Prior art keywords
decoder
encoder
quantization quality
adjusting quantization
adjusting
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.)
Withdrawn
Application number
EP07855801A
Other languages
German (de)
English (en)
Other versions
EP2104095A1 (fr
Inventor
Wei Li
Lijing Xu
Qing Zhang
Jianfeng Xu
Shenghu Sang
Zhengzhong Du
Yao Zou
Peilin Liu
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.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
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 Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of EP2104095A1 publication Critical patent/EP2104095A1/fr
Publication of EP2104095A4 publication Critical patent/EP2104095A4/fr
Withdrawn legal-status Critical Current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
    • G10L19/02—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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
EP07855801A 2006-12-01 2007-12-26 Procédé et appareil permettant d'ajuster la qualité de la quantification dans un codeur et décodeur Withdrawn EP2104095A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 200610164330 CN101192410B (zh) 2006-12-01 2006-12-01 一种在编解码中调整量化质量的方法和装置
PCT/CN2007/003799 WO2008064577A1 (fr) 2006-12-01 2007-12-26 Procédé et appareil permettant d'ajuster la qualité de la quantification dans un codeur et décodeur

Publications (2)

Publication Number Publication Date
EP2104095A1 EP2104095A1 (fr) 2009-09-23
EP2104095A4 true EP2104095A4 (fr) 2012-07-18

Family

ID=39467436

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07855801A Withdrawn EP2104095A4 (fr) 2006-12-01 2007-12-26 Procédé et appareil permettant d'ajuster la qualité de la quantification dans un codeur et décodeur

Country Status (3)

Country Link
EP (1) EP2104095A4 (fr)
CN (1) CN101192410B (fr)
WO (1) WO2008064577A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101609674B (zh) * 2008-06-20 2011-12-28 华为技术有限公司 编解码方法、装置和系统
CN101964690B (zh) * 2009-07-22 2012-07-04 联芯科技有限公司 一种harq合并译码方法、装置及系统
JP5316896B2 (ja) * 2010-03-17 2013-10-16 ソニー株式会社 符号化装置および符号化方法、復号装置および復号方法、並びにプログラム
CN102821069B (zh) * 2011-06-07 2018-06-08 中兴通讯股份有限公司 基站及基站侧上行数据压缩方法
CN103354091B (zh) * 2013-06-19 2015-09-30 北京百度网讯科技有限公司 基于频域变换的音频特征提取方法及装置
CN105721879B (zh) * 2016-01-26 2018-08-31 北京空间飞行器总体设计部 一种深空探测图像分段保护下的感兴趣区域传输方法
CN111429944B (zh) * 2020-04-17 2023-06-02 北京百瑞互联技术有限公司 一种编解码器开发测试优化方法及系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996014695A1 (fr) * 1994-11-04 1996-05-17 Philips Electronics N.V. Codage et decodage d'un signal large bande d'informations numeriques
US5864802A (en) * 1995-09-22 1999-01-26 Samsung Electronics Co., Ltd. Digital audio encoding method utilizing look-up table and device thereof
US20040143431A1 (en) * 2003-01-20 2004-07-22 Mediatek Inc. Method for determining quantization parameters
US6912496B1 (en) * 1999-10-26 2005-06-28 Silicon Automation Systems Preprocessing modules for quality enhancement of MBE coders and decoders for signals having transmission path characteristics
US20050254586A1 (en) * 2004-05-12 2005-11-17 Samsung Electronics Co., Ltd. Method of and apparatus for encoding/decoding digital signal using linear quantization by sections
US20060074693A1 (en) * 2003-06-30 2006-04-06 Hiroaki Yamashita Audio coding device with fast algorithm for determining quantization step sizes based on psycho-acoustic model

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5388181A (en) * 1990-05-29 1995-02-07 Anderson; David J. Digital audio compression system
NL9100173A (nl) * 1991-02-01 1992-09-01 Philips Nv Subbandkodeerinrichting, en een zender voorzien van de kodeerinrichting.
CN1192632C (zh) * 1997-07-29 2005-03-09 皇家菲利浦电子有限公司 可变比特率视频编码方法和相应的视频编码器
CA2252170A1 (fr) * 1998-10-27 2000-04-27 Bruno Bessette Methode et dispositif pour le codage de haute qualite de la parole fonctionnant sur une bande large et de signaux audio
JP3594829B2 (ja) * 1999-02-24 2004-12-02 アルパイン株式会社 Ｍｐｅｇオーディオの復号化方法
CN1318904A (zh) * 2001-03-13 2001-10-24 北京阜国数字技术有限公司 一种实用的基于小波变换的声音编解码器

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996014695A1 (fr) * 1994-11-04 1996-05-17 Philips Electronics N.V. Codage et decodage d'un signal large bande d'informations numeriques
US5864802A (en) * 1995-09-22 1999-01-26 Samsung Electronics Co., Ltd. Digital audio encoding method utilizing look-up table and device thereof
US6912496B1 (en) * 1999-10-26 2005-06-28 Silicon Automation Systems Preprocessing modules for quality enhancement of MBE coders and decoders for signals having transmission path characteristics
US20040143431A1 (en) * 2003-01-20 2004-07-22 Mediatek Inc. Method for determining quantization parameters
US20060074693A1 (en) * 2003-06-30 2006-04-06 Hiroaki Yamashita Audio coding device with fast algorithm for determining quantization step sizes based on psycho-acoustic model
US20050254586A1 (en) * 2004-05-12 2005-11-17 Samsung Electronics Co., Ltd. Method of and apparatus for encoding/decoding digital signal using linear quantization by sections

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
HANSEN J H L ET AL: "Use of objective speech quality measures in selecting effective spectral estimation techniques for speech enhancement", 19890814; 19890814 - 19890816, 14 August 1989 (1989-08-14), pages 105 - 108, XP010090133 *
See also references of WO2008064577A1 *

Also Published As

Publication number Publication date
CN101192410B (zh) 2010-05-19
EP2104095A1 (fr) 2009-09-23
CN101192410A (zh) 2008-06-04
WO2008064577A1 (fr) 2008-06-05
WO2008064577A8 (fr) 2009-05-07

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Inventor name: LI, WEI

Inventor name: ZHANG, QING

Inventor name: XU, JIANFENG

Inventor name: XU, LIJING

Inventor name: DU, ZHENGZHONG

Inventor name: ZOU, YAO

Inventor name: SANG, SHENGHU

Inventor name: LIU, PEILIN

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