EP2104095A4 - A method and an apparatus for adjusting quantization quality in encoder and decoder - Google Patents

A method and an apparatus for adjusting quantization quality in encoder and decoder

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Withdrawn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)
French (fr)
Other versions
EP2104095A1 (en
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/en
Publication of EP2104095A4 publication Critical patent/EP2104095A4/en
Withdrawn legal-status Critical Current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 A method and an apparatus for adjusting quantization quality in encoder and decoder Withdrawn EP2104095A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 200610164330 CN101192410B (en) 2006-12-01 2006-12-01 Method and device for regulating quantization quality in decoding and encoding
PCT/CN2007/003799 WO2008064577A1 (en) 2006-12-01 2007-12-26 A method and an apparatus for adjusting quantization quality in encoder and decoder

Publications (2)

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

Family

ID=39467436

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07855801A Withdrawn EP2104095A4 (en) 2006-12-01 2007-12-26 A method and an apparatus for adjusting quantization quality in encoder and decoder

Country Status (3)

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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101609674B (en) * 2008-06-20 2011-12-28 华为技术有限公司 Method, device and system for coding and decoding
CN101964690B (en) * 2009-07-22 2012-07-04 联芯科技有限公司 HARQ merged decoding method, device and system
JP5316896B2 (en) * 2010-03-17 2013-10-16 ソニー株式会社 Encoding device, encoding method, decoding device, decoding method, and program
CN102821069B (en) * 2011-06-07 2018-06-08 中兴通讯股份有限公司 Base station and uplink data compression method on base station side
CN103354091B (en) * 2013-06-19 2015-09-30 北京百度网讯科技有限公司 Based on audio feature extraction methods and the device of frequency domain conversion
CN105721879B (en) * 2016-01-26 2018-08-31 北京空间飞行器总体设计部 A kind of area-of-interest transmission method under survey of deep space image segmentation protection
CN111429944B (en) * 2020-04-17 2023-06-02 北京百瑞互联技术有限公司 Development test optimization method and system for codec

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996014695A1 (en) * 1994-11-04 1996-05-17 Philips Electronics N.V. Encoding and decoding of a wideband digital information signal
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 (en) * 1991-02-01 1992-09-01 Philips Nv SUBBAND CODING DEVICE, AND A TRANSMITTER EQUIPPED WITH THE CODING DEVICE.
DE69830979T2 (en) * 1997-07-29 2006-05-24 Koninklijke Philips Electronics N.V. METHOD AND DEVICE FOR VIDEO CODING WITH VARIABLE BITRATE
CA2252170A1 (en) * 1998-10-27 2000-04-27 Bruno Bessette A method and device for high quality coding of wideband speech and audio signals
JP3594829B2 (en) * 1999-02-24 2004-12-02 アルパイン株式会社 MPEG audio decoding method
CN1318904A (en) * 2001-03-13 2001-10-24 北京阜国数字技术有限公司 Practical sound coder based on wavelet conversion

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996014695A1 (en) * 1994-11-04 1996-05-17 Philips Electronics N.V. Encoding and decoding of a wideband digital information signal
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
WO2008064577A1 (en) 2008-06-05
WO2008064577A8 (en) 2009-05-07
CN101192410A (en) 2008-06-04
CN101192410B (en) 2010-05-19
EP2104095A1 (en) 2009-09-23

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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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