ATE537536T1 - Sprachkodierungsvorrichtung und sprachkodierungsverfahren - Google Patents

Sprachkodierungsvorrichtung und sprachkodierungsverfahren

Info

Publication number
ATE537536T1
ATE537536T1 AT05799362T AT05799362T ATE537536T1 AT E537536 T1 ATE537536 T1 AT E537536T1 AT 05799362 T AT05799362 T AT 05799362T AT 05799362 T AT05799362 T AT 05799362T AT E537536 T1 ATE537536 T1 AT E537536T1
Authority
AT
Austria
Prior art keywords
analysis
section
mdct
window
voice coding
Prior art date
Application number
AT05799362T
Other languages
English (en)
Inventor
Masahiro Oshikiri
Original Assignee
Panasonic 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 Panasonic Corp filed Critical Panasonic Corp
Application granted granted Critical
Publication of ATE537536T1 publication Critical patent/ATE537536T1/de

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
    • 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
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Electrophonic Musical Instruments (AREA)
AT05799362T 2004-10-26 2005-10-25 Sprachkodierungsvorrichtung und sprachkodierungsverfahren ATE537536T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004311143 2004-10-26
PCT/JP2005/019578 WO2006046546A1 (ja) 2004-10-26 2005-10-25 音声符号化装置および音声符号化方法

Publications (1)

Publication Number Publication Date
ATE537536T1 true ATE537536T1 (de) 2011-12-15

Family

ID=36227786

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05799362T ATE537536T1 (de) 2004-10-26 2005-10-25 Sprachkodierungsvorrichtung und sprachkodierungsverfahren

Country Status (8)

Country Link
US (1) US8326606B2 (de)
EP (1) EP1793372B1 (de)
JP (1) JP5100124B2 (de)
KR (1) KR20070068424A (de)
CN (1) CN101061533B (de)
AT (1) ATE537536T1 (de)
BR (1) BRPI0517513A (de)
WO (1) WO2006046546A1 (de)

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DE602007013026D1 (de) * 2006-04-27 2011-04-21 Panasonic Corp Audiocodierungseinrichtung, audiodecodierungseinrichtung und verfahren dafür
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KR101410312B1 (ko) 2009-07-27 2014-06-27 연세대학교 산학협력단 오디오 신호 처리 방법 및 장치
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CN102243872A (zh) * 2010-05-10 2011-11-16 炬力集成电路设计有限公司 对音频数字信号进行编码、解码的方法及系统
KR101418227B1 (ko) 2010-11-24 2014-07-09 엘지전자 주식회사 스피치 시그널 부호화 방법 및 복호화 방법
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KR101390551B1 (ko) * 2012-09-24 2014-04-30 충북대학교 산학협력단 저 지연 변형된 이산 코사인 변환 방법
KR20140075466A (ko) * 2012-12-11 2014-06-19 삼성전자주식회사 오디오 신호의 인코딩 및 디코딩 방법, 및 오디오 신호의 인코딩 및 디코딩 장치
CN105378835B (zh) * 2013-02-20 2019-10-01 弗劳恩霍夫应用研究促进协会 使用依赖瞬态位置的重叠对音频信号编码或译码的设备及方法
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Also Published As

Publication number Publication date
KR20070068424A (ko) 2007-06-29
EP1793372B1 (de) 2011-12-14
JPWO2006046546A1 (ja) 2008-05-22
BRPI0517513A (pt) 2008-10-14
JP5100124B2 (ja) 2012-12-19
CN101061533B (zh) 2011-05-18
EP1793372A1 (de) 2007-06-06
EP1793372A4 (de) 2008-01-23
US8326606B2 (en) 2012-12-04
WO2006046546A1 (ja) 2006-05-04
US20080065373A1 (en) 2008-03-13
CN101061533A (zh) 2007-10-24

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