ATE393447T1 - 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
ATE393447T1
ATE393447T1 AT02014365T AT02014365T ATE393447T1 AT E393447 T1 ATE393447 T1 AT E393447T1 AT 02014365 T AT02014365 T AT 02014365T AT 02014365 T AT02014365 T AT 02014365T AT E393447 T1 ATE393447 T1 AT E393447T1
Authority
AT
Austria
Prior art keywords
warp contour
continuous
contour
contours
bit rate
Prior art date
Application number
AT02014365T
Other languages
English (en)
Inventor
Ajit V Rao
Original Assignee
Microsoft 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 Microsoft Corp filed Critical Microsoft Corp
Application granted granted Critical
Publication of ATE393447T1 publication Critical patent/ATE393447T1/de

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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)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Communication Control (AREA)
AT02014365T 2001-06-29 2002-06-27 Signaländerung mit hilfe von kontinuierlicher zeitverschiebung für celp kodierung mit niedriger bitrate ATE393447T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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 (1)

Publication Number Publication Date
ATE393447T1 true ATE393447T1 (de) 2008-05-15

Family

ID=25405930

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02014365T ATE393447T1 (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
US7228272B2 (en) 2007-06-05
US20050131681A1 (en) 2005-06-16
JP4162933B2 (ja) 2008-10-08
EP1271471A2 (de) 2003-01-02
JP2003122400A (ja) 2003-04-25
US6879955B2 (en) 2005-04-12
US20030004718A1 (en) 2003-01-02
EP1271471A3 (de) 2004-01-28
DE60226200T2 (de) 2009-05-14
EP1271471B1 (de) 2008-04-23
DE60226200D1 (de) 2008-06-05

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