CN1235190C - 改善音频信号编码效率的方法 - Google Patents

改善音频信号编码效率的方法 Download PDF

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Publication number
CN1235190C
CN1235190C CNB008124884A CN00812488A CN1235190C CN 1235190 C CN1235190 C CN 1235190C CN B008124884 A CNB008124884 A CN B008124884A CN 00812488 A CN00812488 A CN 00812488A CN 1235190 C CN1235190 C CN 1235190C
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China
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audio signal
signal
prediction
information
unit
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Expired - Lifetime
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CNB008124884A
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Chinese (zh)
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CN1372683A (zh
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J·奥延佩雷
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Origin Asset Group Co Ltd
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Nokia Inc
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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
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • 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
    • G10L19/09—Long term prediction, i.e. removing periodical redundancies, e.g. by using adaptive codebook or pitch predictor

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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)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
CNB008124884A 1999-07-05 2000-07-05 改善音频信号编码效率的方法 Expired - Lifetime CN1235190C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI991537A FI116992B (fi) 1999-07-05 1999-07-05 Menetelmät, järjestelmä ja laitteet audiosignaalin koodauksen ja siirron tehostamiseksi
FI991537 1999-07-05

Related Child Applications (1)

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CNB2005101201121A Division CN100568344C (zh) 1999-07-05 2000-07-05 改善音频信号编码效率的方法

Publications (2)

Publication Number Publication Date
CN1372683A CN1372683A (zh) 2002-10-02
CN1235190C true CN1235190C (zh) 2006-01-04

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CNB2005101201121A Expired - Lifetime CN100568344C (zh) 1999-07-05 2000-07-05 改善音频信号编码效率的方法
CNB008124884A Expired - Lifetime CN1235190C (zh) 1999-07-05 2000-07-05 改善音频信号编码效率的方法

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US (2) US7289951B1 (enExample)
EP (3) EP1203370B1 (enExample)
JP (2) JP4142292B2 (enExample)
KR (2) KR100545774B1 (enExample)
CN (2) CN100568344C (enExample)
AT (2) ATE298919T1 (enExample)
AU (1) AU761771B2 (enExample)
BR (1) BRPI0012182B1 (enExample)
CA (1) CA2378435C (enExample)
DE (2) DE60041207D1 (enExample)
ES (1) ES2244452T3 (enExample)
FI (1) FI116992B (enExample)
WO (1) WO2001003122A1 (enExample)

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Also Published As

Publication number Publication date
KR100545774B1 (ko) 2006-01-24
BRPI0012182B1 (pt) 2017-02-07
ATE418779T1 (de) 2009-01-15
CN100568344C (zh) 2009-12-09
EP1587062B1 (en) 2008-12-24
EP1587062A1 (en) 2005-10-19
CA2378435A1 (en) 2001-01-11
AU761771B2 (en) 2003-06-12
US7457743B2 (en) 2008-11-25
FI116992B (fi) 2006-04-28
JP4426483B2 (ja) 2010-03-03
JP2005189886A (ja) 2005-07-14
BR0012182A (pt) 2002-04-16
US7289951B1 (en) 2007-10-30
KR20050085977A (ko) 2005-08-29
US20060089832A1 (en) 2006-04-27
CN1766990A (zh) 2006-05-03
FI991537A7 (fi) 2001-01-06
WO2001003122A1 (en) 2001-01-11
DE60021083T2 (de) 2006-05-18
KR20020019483A (ko) 2002-03-12
JP2003504654A (ja) 2003-02-04
EP1203370A1 (en) 2002-05-08
DE60021083D1 (de) 2005-08-04
AU5832600A (en) 2001-01-22
ATE298919T1 (de) 2005-07-15
KR100593459B1 (ko) 2006-06-28
CN1372683A (zh) 2002-10-02
ES2244452T3 (es) 2005-12-16
JP4142292B2 (ja) 2008-09-03
EP1203370B1 (en) 2005-06-29
DE60041207D1 (de) 2009-02-05
EP2037451A1 (en) 2009-03-18
CA2378435C (en) 2008-01-08

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