FI991537A - Menetelmä audiosignaalin koodaamisen ja siirron tehostamiseksi - Google Patents

Menetelmä audiosignaalin koodaamisen ja siirron tehostamiseksi Download PDF

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Publication number
FI991537A
FI991537A FI991537A FI991537A FI991537A FI 991537 A FI991537 A FI 991537A FI 991537 A FI991537 A FI 991537A FI 991537 A FI991537 A FI 991537A FI 991537 A FI991537 A FI 991537A
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FI
Finland
Prior art keywords
audio signal
coding
coded
compared
amount
Prior art date
Application number
FI991537A
Other languages
English (en)
Swedish (sv)
Other versions
FI116992B (fi
Inventor
Juha Ojanperae
Original Assignee
Nokia Mobile Phones Ltd
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
Priority to FI991537A priority Critical patent/FI116992B/fi
Application filed by Nokia Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Priority to DE60021083T priority patent/DE60021083T2/de
Priority to PCT/FI2000/000619 priority patent/WO2001003122A1/en
Priority to CA002378435A priority patent/CA2378435C/en
Priority to ES00944090T priority patent/ES2244452T3/es
Priority to CNB008124884A priority patent/CN1235190C/zh
Priority to JP2001508440A priority patent/JP4142292B2/ja
Priority to BRPI0012182A priority patent/BRPI0012182B1/pt
Priority to EP00944090A priority patent/EP1203370B1/en
Priority to KR1020057013257A priority patent/KR100593459B1/ko
Priority to US09/610,461 priority patent/US7289951B1/en
Priority to AT00944090T priority patent/ATE298919T1/de
Priority to EP08170594A priority patent/EP2037451A1/en
Priority to AU58326/00A priority patent/AU761771B2/en
Priority to KR1020017016955A priority patent/KR100545774B1/ko
Priority to AT05104931T priority patent/ATE418779T1/de
Priority to DE60041207T priority patent/DE60041207D1/de
Priority to CNB2005101201121A priority patent/CN100568344C/zh
Priority to EP05104931A priority patent/EP1587062B1/en
Publication of FI991537A publication Critical patent/FI991537A/fi
Priority to JP2005056891A priority patent/JP4426483B2/ja
Priority to US11/296,957 priority patent/US7457743B2/en
Publication of FI116992B publication Critical patent/FI116992B/fi
Application granted granted Critical

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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
    • 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)
FI991537A 1999-07-05 1999-07-05 Menetelmät, järjestelmä ja laitteet audiosignaalin koodauksen ja siirron tehostamiseksi FI116992B (fi)

Priority Applications (21)

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
CNB2005101201121A CN100568344C (zh) 1999-07-05 2000-07-05 改善音频信号编码效率的方法
AT00944090T ATE298919T1 (de) 1999-07-05 2000-07-05 Verfahren zur verbesserung der kodierungseffizienz eines audiosignals
ES00944090T ES2244452T3 (es) 1999-07-05 2000-07-05 Metodo para mejorar la eficacia de codificacion de una señal de audio.
CNB008124884A CN1235190C (zh) 1999-07-05 2000-07-05 改善音频信号编码效率的方法
JP2001508440A JP4142292B2 (ja) 1999-07-05 2000-07-05 オーディオ信号の符号化効率を向上させる方法
BRPI0012182A BRPI0012182B1 (pt) 1999-07-05 2000-07-05 método e sistema para melhorar a eficiência da codificação de um sinal de áudio
EP00944090A EP1203370B1 (en) 1999-07-05 2000-07-05 Method for improving the coding efficiency of an audio signal
KR1020057013257A KR100593459B1 (ko) 1999-07-05 2000-07-05 오디오 신호의 부호화 효율 개선 방법
AU58326/00A AU761771B2 (en) 1999-07-05 2000-07-05 Method for improving the coding efficiency of an audio signal
DE60021083T DE60021083T2 (de) 1999-07-05 2000-07-05 Verfahren zur verbesserung der kodierungseffizienz eines audiosignals
CA002378435A CA2378435C (en) 1999-07-05 2000-07-05 Method for improving the coding efficiency of an audio signal
US09/610,461 US7289951B1 (en) 1999-07-05 2000-07-05 Method for improving the coding efficiency of an audio signal
KR1020017016955A KR100545774B1 (ko) 1999-07-05 2000-07-05 오디오 신호의 부호화 효율 개선 방법
AT05104931T ATE418779T1 (de) 1999-07-05 2000-07-05 Verfahren zur verbesserung der kodierungseffizienz eines audiosignals
DE60041207T DE60041207D1 (de) 1999-07-05 2000-07-05 Verfahren zur Verbesserung der Kodierungseffizienz eines Audiosignals
PCT/FI2000/000619 WO2001003122A1 (en) 1999-07-05 2000-07-05 Method for improving the coding efficiency of an audio signal
EP05104931A EP1587062B1 (en) 1999-07-05 2000-07-05 Method for improving the coding efficiency of an audio signal
EP08170594A EP2037451A1 (en) 1999-07-05 2000-07-05 Method for improving the coding efficiency of an audio signal
JP2005056891A JP4426483B2 (ja) 1999-07-05 2005-03-02 オーディオ信号の符号化効率を向上させる方法
US11/296,957 US7457743B2 (en) 1999-07-05 2005-12-08 Method for improving the coding efficiency of an audio signal

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

Publications (2)

Publication Number Publication Date
FI991537A true FI991537A (fi) 2001-01-06
FI116992B FI116992B (fi) 2006-04-28

Family

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Family Applications (1)

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

Country Status (13)

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

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Also Published As

Publication number Publication date
EP1203370A1 (en) 2002-05-08
CA2378435A1 (en) 2001-01-11
EP2037451A1 (en) 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
EP1587062B1 (en) 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
DE60041207D1 (de) 2009-02-05
EP1203370B1 (en) 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 (en) 2005-10-19
DE60021083T2 (de) 2006-05-18
JP2003504654A (ja) 2003-02-04
US7289951B1 (en) 2007-10-30

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