DE60041207D1 - Verfahren zur Verbesserung der Kodierungseffizienz eines Audiosignals - Google Patents

Verfahren zur Verbesserung der Kodierungseffizienz eines Audiosignals

Info

Publication number
DE60041207D1
DE60041207D1 DE60041207T DE60041207T DE60041207D1 DE 60041207 D1 DE60041207 D1 DE 60041207D1 DE 60041207 T DE60041207 T DE 60041207T DE 60041207 T DE60041207 T DE 60041207T DE 60041207 D1 DE60041207 D1 DE 60041207D1
Authority
DE
Germany
Prior art keywords
audio signal
coded
compared
amount
improving
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
Application number
DE60041207T
Other languages
English (en)
Inventor
Juha Ojanpera
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.)
Nokia Oyj
Original Assignee
Nokia Oyj
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 Nokia Oyj filed Critical Nokia Oyj
Application granted granted Critical
Publication of DE60041207D1 publication Critical patent/DE60041207D1/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
    • 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

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)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
DE60041207T 1999-07-05 2000-07-05 Verfahren zur Verbesserung der Kodierungseffizienz eines Audiosignals Expired - Lifetime DE60041207D1 (de)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
DE60041207D1 true DE60041207D1 (de) 2009-02-05

Family

ID=8555025

Family Applications (2)

Application Number Title Priority Date Filing Date
DE60041207T Expired - Lifetime DE60041207D1 (de) 1999-07-05 2000-07-05 Verfahren zur Verbesserung der Kodierungseffizienz eines Audiosignals
DE60021083T Expired - Lifetime DE60021083T2 (de) 1999-07-05 2000-07-05 Verfahren zur verbesserung der kodierungseffizienz eines audiosignals

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE60021083T Expired - Lifetime DE60021083T2 (de) 1999-07-05 2000-07-05 Verfahren zur verbesserung der kodierungseffizienz eines audiosignals

Country Status (13)

Country Link
US (2) US7289951B1 (de)
EP (3) EP1587062B1 (de)
JP (2) JP4142292B2 (de)
KR (2) KR100593459B1 (de)
CN (2) CN1235190C (de)
AT (2) ATE418779T1 (de)
AU (1) AU761771B2 (de)
BR (1) BRPI0012182B1 (de)
CA (1) CA2378435C (de)
DE (2) DE60041207D1 (de)
ES (1) ES2244452T3 (de)
FI (1) FI116992B (de)
WO (1) WO2001003122A1 (de)

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CN105915918B (zh) * 2010-04-13 2019-09-06 Ge视频压缩有限责任公司 跨平面预测的方法和装置
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CN106067983B (zh) 2010-04-13 2019-07-12 Ge视频压缩有限责任公司 解码数据流的方法、生成数据流的方法及解码器
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KR102251833B1 (ko) 2013-12-16 2021-05-13 삼성전자주식회사 오디오 신호의 부호화, 복호화 방법 및 장치
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Also Published As

Publication number Publication date
EP1203370A1 (de) 2002-05-08
CA2378435A1 (en) 2001-01-11
EP2037451A1 (de) 2009-03-18
CN1766990A (zh) 2006-05-03
JP4426483B2 (ja) 2010-03-03
BRPI0012182B1 (pt) 2017-02-07
WO2001003122A1 (en) 2001-01-11
US20060089832A1 (en) 2006-04-27
FI991537A (fi) 2001-01-06
EP1587062B1 (de) 2008-12-24
KR100545774B1 (ko) 2006-01-24
KR20020019483A (ko) 2002-03-12
ATE418779T1 (de) 2009-01-15
CA2378435C (en) 2008-01-08
ES2244452T3 (es) 2005-12-16
FI116992B (fi) 2006-04-28
BR0012182A (pt) 2002-04-16
US7457743B2 (en) 2008-11-25
KR100593459B1 (ko) 2006-06-28
EP1203370B1 (de) 2005-06-29
AU761771B2 (en) 2003-06-12
JP2005189886A (ja) 2005-07-14
DE60021083D1 (de) 2005-08-04
CN1235190C (zh) 2006-01-04
JP4142292B2 (ja) 2008-09-03
CN100568344C (zh) 2009-12-09
CN1372683A (zh) 2002-10-02
ATE298919T1 (de) 2005-07-15
AU5832600A (en) 2001-01-22
KR20050085977A (ko) 2005-08-29
EP1587062A1 (de) 2005-10-19
DE60021083T2 (de) 2006-05-18
JP2003504654A (ja) 2003-02-04
US7289951B1 (en) 2007-10-30

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