DE602006018908D1 - Redundanter Audio Bitstrom und Verfahren zur Vearbeitung von Audio Bitströmen - Google Patents

Redundanter Audio Bitstrom und Verfahren zur Vearbeitung von Audio Bitströmen

Info

Publication number
DE602006018908D1
DE602006018908D1 DE602006018908T DE602006018908T DE602006018908D1 DE 602006018908 D1 DE602006018908 D1 DE 602006018908D1 DE 602006018908 T DE602006018908 T DE 602006018908T DE 602006018908 T DE602006018908 T DE 602006018908T DE 602006018908 D1 DE602006018908 D1 DE 602006018908D1
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DE
Germany
Prior art keywords
coded
decoding
information
audio
redundant
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Active
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DE602006018908T
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English (en)
Inventor
Tian Wang
Kazuhito Koishida
Hosam A Khalil
Xiaoqin Sun
Wei-Ge Chen
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Microsoft Corp
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Microsoft Corp
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Publication of DE602006018908D1 publication Critical patent/DE602006018908D1/de
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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/09—Long term prediction, i.e. removing periodical redundancies, e.g. by using adaptive codebook or pitch predictor
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L2019/0001—Codebooks
    • G10L2019/0004—Design or structure of the codebook
    • G10L2019/0005—Multi-stage vector quantisation

Landscapes

  • 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)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Stereophonic System (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
DE602006018908T 2005-05-31 2006-04-05 Redundanter Audio Bitstrom und Verfahren zur Vearbeitung von Audio Bitströmen Active DE602006018908D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/142,605 US7177804B2 (en) 2005-05-31 2005-05-31 Sub-band voice codec with multi-stage codebooks and redundant coding
PCT/US2006/012686 WO2006130229A1 (en) 2005-05-31 2006-04-05 Sub-band voice codec with multi-stage codebooks and redundant coding

Publications (1)

Publication Number Publication Date
DE602006018908D1 true DE602006018908D1 (de) 2011-01-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE602006018908T Active DE602006018908D1 (de) 2005-05-31 2006-04-05 Redundanter Audio Bitstrom und Verfahren zur Vearbeitung von Audio Bitströmen

Country Status (19)

Country Link
US (4) US7177804B2 (de)
EP (2) EP1886306B1 (de)
JP (2) JP5123173B2 (de)
KR (1) KR101238583B1 (de)
CN (2) CN101189662B (de)
AT (1) ATE492014T1 (de)
AU (1) AU2006252965B2 (de)
BR (1) BRPI0610909A2 (de)
CA (1) CA2611829C (de)
DE (1) DE602006018908D1 (de)
ES (1) ES2358213T3 (de)
HK (1) HK1123621A1 (de)
IL (1) IL187196A (de)
NO (1) NO339287B1 (de)
NZ (1) NZ563462A (de)
PL (1) PL1886306T3 (de)
RU (1) RU2418324C2 (de)
TW (1) TWI413107B (de)
WO (1) WO2006130229A1 (de)

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