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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
Authority
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
Other languages
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 JP2009502456A priority patent/JP5241701B2/ja
Priority to US12/528,877 priority patent/US8306813B2/en
Priority to KR1020097016933A priority patent/KR101414341B1/ko
Priority to BRPI0808202A priority patent/BRPI0808202A8/pt
Priority to EP08710503.7A priority patent/EP2120234B1/en
Priority to CN2008800064059A priority patent/CN101622665B/zh
Publication of WO2008108078A1 publication Critical patent/WO2008108078A1/ja
Anticipated expiration legal-status Critical
Ceased 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (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)
  • 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
JP2009502456A JP5241701B2 (ja) 2007-03-02 2008-02-29 符号化装置および符号化方法
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
BRPI0808202A BRPI0808202A8 (pt) 2007-03-02 2008-02-29 Dispositivo de codificação e método de codificação.
EP08710503.7A EP2120234B1 (en) 2007-03-02 2008-02-29 Speech coding apparatus and method
CN2008800064059A CN101622665B (zh) 2007-03-02 2008-02-29 编码装置以及编码方法

Applications Claiming Priority (2)

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

Publications (1)

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

Family

ID=39737976

Family Applications (1)

Application Number Title Priority Date Filing Date
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) CN102682778B (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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MX2011000363A (es) * 2008-07-10 2011-06-16 Voiceage Corp Dispositivo y sistema para cuantificar y cuantificar inversamente filtros lpc en un supermarco.
US8805694B2 (en) * 2009-02-16 2014-08-12 Electronics And Telecommunications Research Institute Method and apparatus for encoding and decoding audio signal using adaptive sinusoidal coding
US8660851B2 (en) 2009-05-26 2014-02-25 Panasonic Corporation Stereo signal decoding device and stereo signal decoding method
MY164797A (en) 2011-02-14 2018-01-30 Fraunhofer Ges Zur Foederung Der Angewandten Forschung E V Apparatus and method for processing a decoded audio signal in a spectral domain
EP2550653B1 (en) 2011-02-14 2014-04-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Information signal representation using lapped transform
EP2676266B1 (en) 2011-02-14 2015-03-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Linear prediction based coding scheme using spectral domain noise shaping
CN103620672B (zh) 2011-02-14 2016-04-27 弗劳恩霍夫应用研究促进协会 用于低延迟联合语音及音频编码(usac)中的错误隐藏的装置和方法
EP2676267B1 (en) 2011-02-14 2017-07-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Encoding and decoding of pulse positions of tracks of an audio signal
AR085217A1 (es) 2011-02-14 2013-09-18 Fraunhofer Ges Forschung Aparato y metodo para codificar una porcion de una señal de audio utilizando deteccion de un transiente y resultado de calidad
US9472199B2 (en) 2011-09-28 2016-10-18 Lg Electronics Inc. Voice signal encoding method, voice signal decoding method, and apparatus using same
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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JPH10260698A (ja) 1997-03-21 1998-09-29 Nec Corp 信号符号化装置
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Also Published As

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

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