WO2008108078A1 - 符号化装置および符号化方法 - Google Patents

符号化装置および符号化方法 Download PDF

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Publication number
WO2008108078A1
WO2008108078A1 PCT/JP2008/000400 JP2008000400W WO2008108078A1 WO 2008108078 A1 WO2008108078 A1 WO 2008108078A1 JP 2008000400 W JP2008000400 W JP 2008000400W WO 2008108078 A1 WO2008108078 A1 WO 2008108078A1
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WO
WIPO (PCT)
Prior art keywords
quantization unit
pulse
encoding
shape
searched
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.)
Ceased
Application number
PCT/JP2008/000400
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English (en)
French (fr)
Inventor
Toshiyuki Morii
Masahiro Oshikiri
Tomofumi Yamanashi
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.)
Panasonic Corp
Panasonic Holdings Corp
Original Assignee
Panasonic Corp
Matsushita Electric Industrial 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 Panasonic Corp, Matsushita Electric Industrial Co Ltd filed Critical Panasonic Corp
Priority to AU2008222241A priority Critical patent/AU2008222241B2/en
Priority to EP08710503.7A priority patent/EP2120234B1/en
Priority to BRPI0808202A priority patent/BRPI0808202A8/pt
Priority to CN2008800064059A priority patent/CN101622665B/zh
Priority to US12/528,877 priority patent/US8306813B2/en
Priority to KR1020097016933A priority patent/KR101414341B1/ko
Priority to JP2009502456A priority patent/JP5241701B2/ja
Publication of WO2008108078A1 publication Critical patent/WO2008108078A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • 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
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] 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

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  • 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)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

　周波数スペクトルの符号化方式において、従来よりも平均的な符号化歪みを小さくし、聴感的に良好な音質を得る符号化装置。この符号化装置では、シェイプ量子化部（１１１）は、入力スペクトルのシェイプを少数のパルスの位置、極性で量子化する。シェイプ量子化部（１１１）は、パルスの位置を探索する際に、後に探索されるパルスの振幅を、前に探索されたパルスの振幅以下に設定する。ゲイン量子化部（１１２）は、シェイプ量子化部（１１１）によって探索されたパルスのゲインをバンド毎に算出して量子化する。
PCT/JP2008/000400 2007-03-02 2008-02-29 符号化装置および符号化方法 Ceased WO2008108078A1 (ja)

Priority Applications (7)

Application Number Priority Date Filing Date Title
AU2008222241A AU2008222241B2 (en) 2007-03-02 2008-02-29 Encoding device and encoding method
EP08710503.7A EP2120234B1 (en) 2007-03-02 2008-02-29 Speech coding apparatus and method
BRPI0808202A BRPI0808202A8 (pt) 2007-03-02 2008-02-29 Dispositivo de codificação e método de codificação.
CN2008800064059A CN101622665B (zh) 2007-03-02 2008-02-29 编码装置以及编码方法
US12/528,877 US8306813B2 (en) 2007-03-02 2008-02-29 Encoding device and encoding method
KR1020097016933A KR101414341B1 (ko) 2007-03-02 2008-02-29 부호화 장치 및 부호화 방법
JP2009502456A JP5241701B2 (ja) 2007-03-02 2008-02-29 符号化装置および符号化方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-053500 2007-03-02
JP2007053500 2007-03-02

Publications (1)

Publication Number Publication Date
WO2008108078A1 true WO2008108078A1 (ja) 2008-09-12

Family

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Family Applications (1)

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PCT/JP2008/000400 Ceased WO2008108078A1 (ja) 2007-03-02 2008-02-29 符号化装置および符号化方法

Country Status (11)

Country Link
US (1) US8306813B2 (ja)
EP (1) EP2120234B1 (ja)
JP (1) JP5241701B2 (ja)
KR (1) KR101414341B1 (ja)
CN (2) CN101622665B (ja)
AU (1) AU2008222241B2 (ja)
BR (1) BRPI0808202A8 (ja)
MY (1) MY152167A (ja)
RU (1) RU2462770C2 (ja)
SG (1) SG179433A1 (ja)
WO (1) WO2008108078A1 (ja)

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ES2645375T3 (es) * 2008-07-10 2017-12-05 Voiceage Corporation Dispositivo y método de cuantificación y cuantificación inversa de filtro LPC de tasa de bits variable
CN102396024A (zh) * 2009-02-16 2012-03-28 韩国电子通信研究院 使用自适应正弦波脉冲编码的用于音频信号的编码/解码方法及其设备
US8660851B2 (en) 2009-05-26 2014-02-25 Panasonic Corporation Stereo signal decoding device and stereo signal decoding method
WO2012110447A1 (en) 2011-02-14 2012-08-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for error concealment in low-delay unified speech and audio coding (usac)
JP5914527B2 (ja) 2011-02-14 2016-05-11 フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン 過渡検出及び品質結果を使用してオーディオ信号の一部分を符号化する装置及び方法
EP2676268B1 (en) 2011-02-14 2014-12-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for processing a decoded audio signal in a spectral domain
PL2550653T3 (pl) 2011-02-14 2014-09-30 Fraunhofer Ges Forschung Reprezentacja sygnału informacyjnego z użyciem transformacji zakładkowej
TR201903388T4 (tr) 2011-02-14 2019-04-22 Fraunhofer Ges Forschung Bir ses sinyalinin parçalarının darbe konumlarının şifrelenmesi ve çözülmesi.
WO2012110476A1 (en) 2011-02-14 2012-08-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Linear prediction based coding scheme using spectral domain noise shaping
WO2013048171A2 (ko) * 2011-09-28 2013-04-04 엘지전자 주식회사 음성 신호 부호화 방법 및 음성 신호 복호화 방법 그리고 이를 이용하는 장치
KR102083450B1 (ko) 2012-12-05 2020-03-02 삼성전자주식회사 페이지 버퍼를 포함하는 불휘발성 메모리 장치 및 그것의 동작 방법
JP5817854B2 (ja) * 2013-02-22 2015-11-18 ヤマハ株式会社 音声合成装置およびプログラム

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JPH1069297A (ja) * 1996-08-26 1998-03-10 Nec Corp 音声符号化装置
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Also Published As

Publication number Publication date
AU2008222241B2 (en) 2012-11-29
MY152167A (en) 2014-08-15
RU2462770C2 (ru) 2012-09-27
JPWO2008108078A1 (ja) 2010-06-10
CN101622665B (zh) 2012-06-13
CN102682778B (zh) 2014-10-22
JP5241701B2 (ja) 2013-07-17
RU2009132937A (ru) 2011-03-10
KR20090117876A (ko) 2009-11-13
KR101414341B1 (ko) 2014-07-22
US8306813B2 (en) 2012-11-06
SG179433A1 (en) 2012-04-27
US20100106496A1 (en) 2010-04-29
EP2120234A4 (en) 2011-08-03
EP2120234B1 (en) 2016-01-06
AU2008222241A1 (en) 2008-09-12
CN102682778A (zh) 2012-09-19
CN101622665A (zh) 2010-01-06
BRPI0808202A8 (pt) 2016-11-22
BRPI0808202A2 (pt) 2014-07-01
EP2120234A1 (en) 2009-11-18

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