ES2164414T3 - Metodo y aparato para codificacion de audio. - Google Patents

Metodo y aparato para codificacion de audio.

Info

Publication number
ES2164414T3
ES2164414T3 ES98904191T ES98904191T ES2164414T3 ES 2164414 T3 ES2164414 T3 ES 2164414T3 ES 98904191 T ES98904191 T ES 98904191T ES 98904191 T ES98904191 T ES 98904191T ES 2164414 T3 ES2164414 T3 ES 2164414T3
Authority
ES
Spain
Prior art keywords
audio signal
signal
quantized
generate
frequency
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
ES98904191T
Other languages
English (en)
Spanish (es)
Inventor
Lin Yin
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 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
Application filed by Nokia Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Application granted granted Critical
Publication of ES2164414T3 publication Critical patent/ES2164414T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • 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
    • 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0204—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 spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
    • 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
    • G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Telephone Function (AREA)
ES98904191T 1997-03-14 1998-02-18 Metodo y aparato para codificacion de audio. Expired - Lifetime ES2164414T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI971108A FI114248B (fi) 1997-03-14 1997-03-14 Menetelmä ja laite audiokoodaukseen ja audiodekoodaukseen

Publications (1)

Publication Number Publication Date
ES2164414T3 true ES2164414T3 (es) 2002-02-16

Family

ID=8548401

Family Applications (1)

Application Number Title Priority Date Filing Date
ES98904191T Expired - Lifetime ES2164414T3 (es) 1997-03-14 1998-02-18 Metodo y aparato para codificacion de audio.

Country Status (13)

Country Link
US (2) US6721700B1 (cg-RX-API-DMAC10.html)
EP (1) EP0966793B1 (cg-RX-API-DMAC10.html)
JP (2) JP3391686B2 (cg-RX-API-DMAC10.html)
KR (1) KR100469002B1 (cg-RX-API-DMAC10.html)
CN (1) CN1135721C (cg-RX-API-DMAC10.html)
AU (1) AU733156B2 (cg-RX-API-DMAC10.html)
DE (1) DE19811039B4 (cg-RX-API-DMAC10.html)
ES (1) ES2164414T3 (cg-RX-API-DMAC10.html)
FI (1) FI114248B (cg-RX-API-DMAC10.html)
FR (1) FR2761801B1 (cg-RX-API-DMAC10.html)
GB (1) GB2323759B (cg-RX-API-DMAC10.html)
SE (1) SE521129C2 (cg-RX-API-DMAC10.html)
WO (1) WO1998042083A1 (cg-RX-API-DMAC10.html)

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TWI220753B (en) * 2003-01-20 2004-09-01 Mediatek Inc Method for determining quantization parameters
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US7688894B2 (en) 2003-09-07 2010-03-30 Microsoft Corporation Scan patterns for interlaced video content
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JP4469374B2 (ja) * 2005-01-12 2010-05-26 日本電信電話株式会社 長期予測符号化方法、長期予測復号化方法、これら装置、そのプログラム及び記録媒体
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DE102006022346B4 (de) * 2006-05-12 2008-02-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Informationssignalcodierung
RU2464650C2 (ru) * 2006-12-13 2012-10-20 Панасоник Корпорэйшн Устройство и способ кодирования, устройство и способ декодирования
US8184710B2 (en) 2007-02-21 2012-05-22 Microsoft Corporation Adaptive truncation of transform coefficient data in a transform-based digital media codec
WO2008114075A1 (en) * 2007-03-16 2008-09-25 Nokia Corporation An encoder
US7774205B2 (en) 2007-06-15 2010-08-10 Microsoft Corporation Coding of sparse digital media spectral data
CN101075436B (zh) * 2007-06-26 2011-07-13 北京中星微电子有限公司 带补偿的音频编、解码方法及装置
US20090048827A1 (en) * 2007-08-17 2009-02-19 Manoj Kumar Method and system for audio frame estimation
ATE500588T1 (de) * 2008-01-04 2011-03-15 Dolby Sweden Ab Audiokodierer und -dekodierer
WO2009132662A1 (en) * 2008-04-28 2009-11-05 Nokia Corporation Encoding/decoding for improved frequency response
US8179974B2 (en) 2008-05-02 2012-05-15 Microsoft Corporation Multi-level representation of reordered transform coefficients
KR20090122143A (ko) * 2008-05-23 2009-11-26 엘지전자 주식회사 오디오 신호 처리 방법 및 장치
US8406307B2 (en) 2008-08-22 2013-03-26 Microsoft Corporation Entropy coding/decoding of hierarchically organized data
WO2010032992A2 (ko) 2008-09-18 2010-03-25 한국전자통신연구원 Mdct기반의 코너와 이종의 코더간 변환에서의 인코딩 장치 및 디코딩 장치
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Also Published As

Publication number Publication date
FR2761801B1 (fr) 1999-12-31
SE9800776L (sv) 1998-09-15
DE19811039A1 (de) 1998-09-17
GB9805294D0 (en) 1998-05-06
AU733156B2 (en) 2001-05-10
CN1135721C (zh) 2004-01-21
FI971108A7 (fi) 1998-09-15
EP0966793B1 (en) 2001-09-19
JP3391686B2 (ja) 2003-03-31
CN1195930A (zh) 1998-10-14
DE19811039B4 (de) 2005-07-21
US20040093208A1 (en) 2004-05-13
US6721700B1 (en) 2004-04-13
KR100469002B1 (ko) 2005-01-29
FI971108A0 (fi) 1997-03-14
KR20000076273A (ko) 2000-12-26
SE9800776D0 (sv) 1998-03-10
JPH10282999A (ja) 1998-10-23
WO1998042083A1 (en) 1998-09-24
US7194407B2 (en) 2007-03-20
SE521129C2 (sv) 2003-09-30
FR2761801A1 (fr) 1998-10-09
FI114248B (fi) 2004-09-15
GB2323759B (en) 2002-01-16
AU6216498A (en) 1998-10-12
EP0966793A1 (en) 1999-12-29
JP2003140697A (ja) 2003-05-16
GB2323759A (en) 1998-09-30

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