DE60226200D1 - Signaländerung mit Hilfe von kontinuierlicher Zeitverschiebung für CELP Kodierung mit niedriger Bitrate - Google Patents

Signaländerung mit Hilfe von kontinuierlicher Zeitverschiebung für CELP Kodierung mit niedriger Bitrate

Info

Publication number
DE60226200D1
DE60226200D1 DE60226200T DE60226200T DE60226200D1 DE 60226200 D1 DE60226200 D1 DE 60226200D1 DE 60226200 T DE60226200 T DE 60226200T DE 60226200 T DE60226200 T DE 60226200T DE 60226200 D1 DE60226200 D1 DE 60226200D1
Authority
DE
Germany
Prior art keywords
warp contour
continuous
contour
contours
bit rate
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
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DE60226200T
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English (en)
Other versions
DE60226200T2 (de
Inventor
Ajit V Rao
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.)
Microsoft Corp
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Microsoft Corp
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Publication date
Application filed by Microsoft Corp filed Critical Microsoft Corp
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Publication of DE60226200D1 publication Critical patent/DE60226200D1/de
Publication of DE60226200T2 publication Critical patent/DE60226200T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G10L19/04—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
    • 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
    • G10L15/00—Speech recognition
    • G10L15/08—Speech classification or search
    • G10L15/12—Speech classification or search using dynamic programming techniques, e.g. dynamic time warping [DTW]
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Communication Control (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
DE60226200T 2001-06-29 2002-06-27 Signaländerung mit Hilfe von kontinuierlicher Zeitverschiebung für CELP Kodierung mit niedriger Bitrate Expired - Lifetime DE60226200T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US896272 2001-06-29
US09/896,272 US6879955B2 (en) 2001-06-29 2001-06-29 Signal modification based on continuous time warping for low bit rate CELP coding

Publications (2)

Publication Number Publication Date
DE60226200D1 true DE60226200D1 (de) 2008-06-05
DE60226200T2 DE60226200T2 (de) 2009-05-14

Family

ID=25405930

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60226200T Expired - Lifetime DE60226200T2 (de) 2001-06-29 2002-06-27 Signaländerung mit Hilfe von kontinuierlicher Zeitverschiebung für CELP Kodierung mit niedriger Bitrate

Country Status (5)

Country Link
US (2) US6879955B2 (de)
EP (1) EP1271471B1 (de)
JP (1) JP4162933B2 (de)
AT (1) ATE393447T1 (de)
DE (1) DE60226200T2 (de)

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Also Published As

Publication number Publication date
DE60226200T2 (de) 2009-05-14
US20030004718A1 (en) 2003-01-02
EP1271471A2 (de) 2003-01-02
EP1271471B1 (de) 2008-04-23
US6879955B2 (en) 2005-04-12
US7228272B2 (en) 2007-06-05
JP4162933B2 (ja) 2008-10-08
US20050131681A1 (en) 2005-06-16
JP2003122400A (ja) 2003-04-25
ATE393447T1 (de) 2008-05-15
EP1271471A3 (de) 2004-01-28

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