DE69428030D1 - Digitales signalkodierungsgerät, dazugehöriges dekodiergerät und aufzeichnungsträger - Google Patents

Digitales signalkodierungsgerät, dazugehöriges dekodiergerät und aufzeichnungsträger

Info

Publication number
DE69428030D1
DE69428030D1 DE69428030T DE69428030T DE69428030D1 DE 69428030 D1 DE69428030 D1 DE 69428030D1 DE 69428030 T DE69428030 T DE 69428030T DE 69428030 T DE69428030 T DE 69428030T DE 69428030 D1 DE69428030 D1 DE 69428030D1
Authority
DE
Germany
Prior art keywords
digital signal
signal encoding
recording carrier
related decoding
decoding device
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.)
Expired - Lifetime
Application number
DE69428030T
Other languages
English (en)
Other versions
DE69428030T2 (de
Inventor
Kyoya Tsutsui
Mito Sonohara
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Publication of DE69428030D1 publication Critical patent/DE69428030D1/de
Application granted granted Critical
Publication of DE69428030T2 publication Critical patent/DE69428030T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B14/00Transmission systems not characterised by the medium used for transmission
    • H04B14/02Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/04Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/04Speech 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
    • G10L19/06Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/002Dynamic bit allocation
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/012Comfort noise or silence coding
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/02Speech 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
    • G10L19/0212Speech 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
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/04Speech 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
    • G10L19/16Vocoder architecture
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/667Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using a division in frequency subbands
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/18Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
DE69428030T 1993-06-30 1994-06-29 Digitales signalkodierungsgerät, dazugehöriges dekodiergerät und aufzeichnungsträger Expired - Lifetime DE69428030T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP18332293 1993-06-30
PCT/JP1994/001056 WO1995001680A1 (fr) 1993-06-30 1994-06-29 Dispositif de codage de signaux numeriques, son dispositif de decodage, et son support d'enregistrement

Publications (2)

Publication Number Publication Date
DE69428030D1 true DE69428030D1 (de) 2001-09-27
DE69428030T2 DE69428030T2 (de) 2002-05-29

Family

ID=16133682

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69432538T Expired - Lifetime DE69432538T2 (de) 1993-06-30 1994-06-29 Digitales Signalkodierungsgerät, dazugehöriges Dekodiergerät und Aufzeichnungsträger
DE69428030T Expired - Lifetime DE69428030T2 (de) 1993-06-30 1994-06-29 Digitales signalkodierungsgerät, dazugehöriges dekodiergerät und aufzeichnungsträger

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69432538T Expired - Lifetime DE69432538T2 (de) 1993-06-30 1994-06-29 Digitales Signalkodierungsgerät, dazugehöriges Dekodiergerät und Aufzeichnungsträger

Country Status (10)

Country Link
US (1) US5765126A (de)
EP (2) EP0663739B1 (de)
JP (1) JP3721582B2 (de)
KR (1) KR100368854B1 (de)
CN (2) CN1099777C (de)
BR (1) BR9405445A (de)
DE (2) DE69432538T2 (de)
PL (2) PL173718B1 (de)
RU (1) RU2131169C1 (de)
WO (1) WO1995001680A1 (de)

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US8631060B2 (en) 2007-12-13 2014-01-14 Qualcomm Incorporated Fast algorithms for computation of 5-point DCT-II, DCT-IV, and DST-IV, and architectures
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CN101903944B (zh) 2007-12-18 2013-04-03 Lg电子株式会社 用于处理音频信号的方法和装置
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JP6021498B2 (ja) 2012-08-01 2016-11-09 任天堂株式会社 データ圧縮装置、データ圧縮プログラム、データ圧縮システム、データ圧縮方法、データ伸張装置、データ圧縮伸張システム、および圧縮データのデータ構造
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Also Published As

Publication number Publication date
KR950703231A (ko) 1995-08-23
EP0663739A4 (de) 1998-09-09
CN1113096A (zh) 1995-12-06
PL174314B1 (pl) 1998-07-31
DE69432538T2 (de) 2004-04-01
DE69432538D1 (de) 2003-05-22
JP3721582B2 (ja) 2005-11-30
EP1083674B1 (de) 2003-04-16
EP0663739A1 (de) 1995-07-19
RU2131169C1 (ru) 1999-05-27
WO1995001680A1 (fr) 1995-01-12
PL173718B1 (pl) 1998-04-30
PL307740A1 (en) 1995-06-12
EP1083674A3 (de) 2001-04-11
CN1440144A (zh) 2003-09-03
US5765126A (en) 1998-06-09
EP1083674A2 (de) 2001-03-14
KR100368854B1 (ko) 2003-05-17
CN1217502C (zh) 2005-08-31
EP0663739B1 (de) 2001-08-22
DE69428030T2 (de) 2002-05-29
BR9405445A (pt) 1999-09-08
CN1099777C (zh) 2003-01-22

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