JP4162933B2 - 低ビットレートｃｅｌｐ符号化のための連続タイムワーピングに基づく信号の修正 - Google Patents

低ビットレートｃｅｌｐ符号化のための連続タイムワーピングに基づく信号の修正 Download PDF

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JP4162933B2
JP4162933B2 JP2002186971A JP2002186971A JP4162933B2 JP 4162933 B2 JP4162933 B2 JP 4162933B2 JP 2002186971 A JP2002186971 A JP 2002186971A JP 2002186971 A JP2002186971 A JP 2002186971A JP 4162933 B2 JP4162933 B2 JP 4162933B2
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residual
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lag
sample
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JP2003122400A5 (enExample
JP2003122400A (ja
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ブイ．ラオ アジット
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Microsoft Corp
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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
    • G10L19/04—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

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  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (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)
JP2002186971A 2001-06-29 2002-06-26 低ビットレートｃｅｌｐ符号化のための連続タイムワーピングに基づく信号の修正 Expired - Fee Related JP4162933B2 (ja)

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Application Number Priority Date Filing Date Title
US09/896,272 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

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JP2003122400A JP2003122400A (ja) 2003-04-25
JP2003122400A5 JP2003122400A5 (enExample) 2006-12-28
JP4162933B2 true JP4162933B2 (ja) 2008-10-08

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US (2) US6879955B2 (enExample)
EP (1) EP1271471B1 (enExample)
JP (1) JP4162933B2 (enExample)
AT (1) ATE393447T1 (enExample)
DE (1) DE60226200T2 (enExample)

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Also Published As

Publication number Publication date
EP1271471A2 (en) 2003-01-02
ATE393447T1 (de) 2008-05-15
JP2003122400A (ja) 2003-04-25
DE60226200T2 (de) 2009-05-14
US6879955B2 (en) 2005-04-12
EP1271471B1 (en) 2008-04-23
EP1271471A3 (en) 2004-01-28
DE60226200D1 (de) 2008-06-05
US20050131681A1 (en) 2005-06-16
US7228272B2 (en) 2007-06-05
US20030004718A1 (en) 2003-01-02

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