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
Application number
PCT/JP2008/000400
Other languages
English (en)
French (fr)
Inventor
Toshiyuki Morii
Masahiro Oshikiri
Tomofumi Yamanashi
Original Assignee
Panasonic Corporation
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 Corporation filed Critical Panasonic Corporation
Priority to KR1020097016933A priority Critical patent/KR101414341B1/ko
Priority to CN2008800064059A priority patent/CN101622665B/zh
Priority to JP2009502456A priority patent/JP5241701B2/ja
Priority to EP08710503.7A priority patent/EP2120234B1/en
Priority to BRPI0808202A priority patent/BRPI0808202A8/pt
Priority to US12/528,877 priority patent/US8306813B2/en
Priority to AU2008222241A priority patent/AU2008222241B2/en
Publication of WO2008108078A1 publication Critical patent/WO2008108078A1/ja

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    • 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 WO2008108078A1 (ja)

Priority Applications (7)

Application Number Priority Date Filing Date Title
KR1020097016933A KR101414341B1 (ko) 2007-03-02 2008-02-29 부호화 장치 및 부호화 방법
CN2008800064059A CN101622665B (zh) 2007-03-02 2008-02-29 编码装置以及编码方法
JP2009502456A JP5241701B2 (ja) 2007-03-02 2008-02-29 符号化装置および符号化方法
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.
US12/528,877 US8306813B2 (en) 2007-03-02 2008-02-29 Encoding device and encoding method
AU2008222241A AU2008222241B2 (en) 2007-03-02 2008-02-29 Encoding device and encoding method

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

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/000400 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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EP2301021B1 (en) * 2008-07-10 2017-06-21 VoiceAge Corporation Device and method for quantizing lpc filters in a super-frame
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
JP5764488B2 (ja) 2009-05-26 2015-08-19 パナソニック インテレクチュアル プロパティ コーポレーション オブアメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ 復号装置及び復号方法
WO2012110415A1 (en) 2011-02-14 2012-08-23 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for processing a decoded audio signal in a spectral domain
PT2676267T (pt) 2011-02-14 2017-09-26 Fraunhofer Ges Forschung Codificação e descodificação de posições de pulso de faixas de um sinal de áudio
EP2676270B1 (en) 2011-02-14 2017-02-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Coding a portion of an audio signal using a transient detection and a quality result
KR101551046B1 (ko) 2011-02-14 2015-09-07 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 저-지연 통합 스피치 및 오디오 코딩에서 에러 은닉을 위한 장치 및 방법
WO2012110478A1 (en) 2011-02-14 2012-08-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Information signal representation using lapped transform
BR112013020587B1 (pt) 2011-02-14 2021-03-09 Fraunhofer-Gesellschaft Zur Forderung De Angewandten Forschung E.V. esquema de codificação com base em previsão linear utilizando modelagem de ruído de domínio espectral
EP2763137B1 (en) * 2011-09-28 2016-09-14 LG Electronics Inc. Voice signal encoding method and voice signal decoding method
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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Also Published As

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

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