TW321810B - - Google Patents

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Publication number
TW321810B
TW321810B TW085112854A TW85112854A TW321810B TW 321810 B TW321810 B TW 321810B TW 085112854 A TW085112854 A TW 085112854A TW 85112854 A TW85112854 A TW 85112854A TW 321810 B TW321810 B TW 321810B
Authority
TW
Taiwan
Prior art keywords
signal
code
coding
term prediction
encoding
Prior art date
Application number
TW085112854A
Other languages
English (en)
Chinese (zh)
Original Assignee
Sony 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
Priority claimed from JP7302130A external-priority patent/JPH09127986A/ja
Priority claimed from JP7302199A external-priority patent/JPH09127987A/ja
Application filed by Sony Co Ltd filed Critical Sony Co Ltd
Application granted granted Critical
Publication of TW321810B publication Critical patent/TW321810B/zh

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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
    • G10L19/0212—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
    • 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
    • G10L19/04—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
    • 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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • G10L19/07—Line spectrum pair [LSP] vocoders

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (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)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
TW085112854A 1995-10-26 1996-10-21 TW321810B (US06611212-20030826-M00017.png)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP7302130A JPH09127986A (ja) 1995-10-26 1995-10-26 符号化信号の多重化方法及び信号符号化装置
JP7302199A JPH09127987A (ja) 1995-10-26 1995-10-26 信号符号化方法及び装置

Publications (1)

Publication Number Publication Date
TW321810B true TW321810B (US06611212-20030826-M00017.png) 1997-12-01

Family

ID=26562996

Family Applications (1)

Application Number Title Priority Date Filing Date
TW085112854A TW321810B (US06611212-20030826-M00017.png) 1995-10-26 1996-10-21

Country Status (8)

Country Link
US (1) US5819212A (US06611212-20030826-M00017.png)
EP (2) EP1262956B1 (US06611212-20030826-M00017.png)
KR (1) KR970024629A (US06611212-20030826-M00017.png)
CN (1) CN1096148C (US06611212-20030826-M00017.png)
AU (1) AU725251B2 (US06611212-20030826-M00017.png)
BR (1) BR9605251A (US06611212-20030826-M00017.png)
DE (2) DE69634645T2 (US06611212-20030826-M00017.png)
TW (1) TW321810B (US06611212-20030826-M00017.png)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI405185B (zh) * 2007-12-13 2013-08-11 Qualcomm Inc 用於５點離散餘弦轉換－ii（ｄｃｔ－ii），離散餘弦轉換－ｉｖ（ｄｃｔ－ｉｖ）及離散正弦轉換－ｉｖ（ｄsｔ－ｉｖ）之計算的快速演算法與結構
TWI476762B (zh) * 2010-08-13 2015-03-11 Ntt Docomo Inc Audio decoding device, audio decoding method, audio decoding program, audio coding device, audio coding method, and audio coding program

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US6208962B1 (en) * 1997-04-09 2001-03-27 Nec Corporation Signal coding system
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US6889185B1 (en) * 1997-08-28 2005-05-03 Texas Instruments Incorporated Quantization of linear prediction coefficients using perceptual weighting
JP3765171B2 (ja) * 1997-10-07 2006-04-12 ヤマハ株式会社 音声符号化復号方式
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KR100304092B1 (ko) * 1998-03-11 2001-09-26 마츠시타 덴끼 산교 가부시키가이샤 오디오 신호 부호화 장치, 오디오 신호 복호화 장치 및 오디오 신호 부호화/복호화 장치
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JP5224017B2 (ja) * 2005-01-11 2013-07-03 日本電気株式会社 オーディオ符号化装置、オーディオ符号化方法およびオーディオ符号化プログラム
JP4800645B2 (ja) * 2005-03-18 2011-10-26 カシオ計算機株式会社 音声符号化装置、及び音声符号化方法
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US7831421B2 (en) * 2005-05-31 2010-11-09 Microsoft Corporation Robust decoder
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KR101171098B1 (ko) * 2005-07-22 2012-08-20 삼성전자주식회사 혼합 구조의 스케일러블 음성 부호화 방법 및 장치
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Publication number Priority date Publication date Assignee Title
TWI405185B (zh) * 2007-12-13 2013-08-11 Qualcomm Inc 用於５點離散餘弦轉換－ii（ｄｃｔ－ii），離散餘弦轉換－ｉｖ（ｄｃｔ－ｉｖ）及離散正弦轉換－ｉｖ（ｄsｔ－ｉｖ）之計算的快速演算法與結構
TWI476762B (zh) * 2010-08-13 2015-03-11 Ntt Docomo Inc Audio decoding device, audio decoding method, audio decoding program, audio coding device, audio coding method, and audio coding program
TWI570712B (zh) * 2010-08-13 2017-02-11 Ntt Docomo Inc Audio decoding device, audio decoding method, audio decoding program, audio coding device, audio coding method, and audio coding program

Also Published As

Publication number Publication date
EP1262956B1 (en) 2005-04-20
AU7037396A (en) 1997-05-01
DE69631728D1 (de) 2004-04-08
EP0770985B1 (en) 2004-03-03
KR970024629A (ko) 1997-05-30
AU725251B2 (en) 2000-10-12
DE69634645D1 (de) 2005-05-25
CN1154013A (zh) 1997-07-09
EP0770985A3 (en) 1998-10-07
BR9605251A (pt) 1998-07-21
EP1262956A3 (en) 2003-01-08
DE69631728T2 (de) 2005-02-10
US5819212A (en) 1998-10-06
CN1096148C (zh) 2002-12-11
DE69634645T2 (de) 2006-03-02
EP1262956A2 (en) 2002-12-04
EP0770985A2 (en) 1997-05-02

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