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TW200746047A - Encoding method and encoding device - Google Patents

Encoding method and encoding device

Info

Publication number
TW200746047A
TW200746047A TW096112113A TW96112113A TW200746047A TW 200746047 A TW200746047 A TW 200746047A TW 096112113 A TW096112113 A TW 096112113A TW 96112113 A TW96112113 A TW 96112113A TW 200746047 A TW200746047 A TW 200746047A
Authority
TW
Taiwan
Prior art keywords
initial value
code amount
encoding
scale factor
common scale
Prior art date
Application number
TW096112113A
Other languages
English (en)
Inventor
Kaoru Suwabe
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of TW200746047A publication Critical patent/TW200746047A/zh

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • 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
    • G10L19/035—Scalar quantisation
    • 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
    • G10L19/0204—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
    • 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
    • G10L19/0212—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 orthogonal transformation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
TW096112113A 2006-04-26 2007-04-04 Encoding method and encoding device TW200746047A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006122294A JP2007293118A (ja) 2006-04-26 2006-04-26 符号化方法および符号化装置

Publications (1)

Publication Number Publication Date
TW200746047A true TW200746047A (en) 2007-12-16

Family

ID=38655626

Family Applications (1)

Application Number Title Priority Date Filing Date
TW096112113A TW200746047A (en) 2006-04-26 2007-04-04 Encoding method and encoding device

Country Status (8)

Country Link
US (1) US20090083042A1 (zh)
EP (1) EP2012306A1 (zh)
JP (1) JP2007293118A (zh)
KR (1) KR20090009784A (zh)
CN (1) CN101432803A (zh)
RU (1) RU2008142391A (zh)
TW (1) TW200746047A (zh)
WO (1) WO2007126106A1 (zh)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070061577A1 (en) * 2003-10-17 2007-03-15 Van De Kerkhof Leon M Signal encoding
US8190440B2 (en) * 2008-02-29 2012-05-29 Broadcom Corporation Sub-band codec with native voice activity detection
US9510044B1 (en) * 2008-06-18 2016-11-29 Gracenote, Inc. TV content segmentation, categorization and identification and time-aligned applications
US8200496B2 (en) * 2008-12-29 2012-06-12 Motorola Mobility, Inc. Audio signal decoder and method for producing a scaled reconstructed audio signal
US8140342B2 (en) * 2008-12-29 2012-03-20 Motorola Mobility, Inc. Selective scaling mask computation based on peak detection
KR101078378B1 (ko) * 2009-03-04 2011-10-31 주식회사 코아로직 오디오 부호화기의 양자화 방법 및 장치
US8736894B2 (en) * 2011-12-20 2014-05-27 Eastman Kodak Company Producing correction data for printer
JP5942463B2 (ja) 2012-02-17 2016-06-29 株式会社ソシオネクスト オーディオ信号符号化装置およびオーディオ信号符号化方法
CN104488266B (zh) * 2013-06-27 2018-07-06 北京大学深圳研究生院 Avs视频压缩编码方法及编码器
CN110505484A (zh) * 2019-08-12 2019-11-26 深圳市华星光电技术有限公司 数据压缩装置及压缩方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11219197A (ja) * 1998-02-02 1999-08-10 Fujitsu Ltd オーディオ信号符号化方法及び装置
JP2001306095A (ja) * 2000-04-18 2001-11-02 Mitsubishi Electric Corp オーディオ符号化装置及びオーディオ符号化方法
DE60208426T2 (de) * 2001-11-02 2006-08-24 Matsushita Electric Industrial Co., Ltd., Kadoma Vorrichtung zur signalkodierung, signaldekodierung und system zum verteilen von audiodaten
US6950794B1 (en) * 2001-11-20 2005-09-27 Cirrus Logic, Inc. Feedforward prediction of scalefactors based on allowable distortion for noise shaping in psychoacoustic-based compression
JP4148356B2 (ja) 2002-11-18 2008-09-10 学校法人東海大学 量子化ステップパラメータ決定装置と量子化ステップパラメータ決定方法と量子化ステップパラメータ決定プログラム、ならびに非線形量子化方法と非線形量子化装置と非線形量子化プログラム
WO2005004113A1 (ja) * 2003-06-30 2005-01-13 Fujitsu Limited オーディオ符号化装置
US7349842B2 (en) * 2003-09-29 2008-03-25 Sony Corporation Rate-distortion control scheme in audio encoding
JP4273062B2 (ja) * 2004-09-09 2009-06-03 ティーオーエー株式会社 符号化方法、符号化装置、復号化方法及び復号化装置

Also Published As

Publication number Publication date
EP2012306A1 (en) 2009-01-07
CN101432803A (zh) 2009-05-13
WO2007126106A1 (ja) 2007-11-08
US20090083042A1 (en) 2009-03-26
RU2008142391A (ru) 2010-04-27
JP2007293118A (ja) 2007-11-08
KR20090009784A (ko) 2009-01-23

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