SE521129C2 - Sätt och anordning för audiokodning - Google Patents

Sätt och anordning för audiokodning

Info

Publication number
SE521129C2
SE521129C2 SE9800776A SE9800776A SE521129C2 SE 521129 C2 SE521129 C2 SE 521129C2 SE 9800776 A SE9800776 A SE 9800776A SE 9800776 A SE9800776 A SE 9800776A SE 521129 C2 SE521129 C2 SE 521129C2
Authority
SE
Sweden
Prior art keywords
audio signal
quantized
generate
frequency
predicted
Prior art date
Application number
SE9800776A
Other languages
English (en)
Swedish (sv)
Other versions
SE9800776D0 (sv
SE9800776L (sv
Inventor
Lin Yin
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
Publication of SE9800776D0 publication Critical patent/SE9800776D0/xx
Publication of SE9800776L publication Critical patent/SE9800776L/xx
Publication of SE521129C2 publication Critical patent/SE521129C2/sv

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 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
    • 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
    • G10L19/02—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 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
SE9800776A 1997-03-14 1998-03-10 Sätt och anordning för audiokodning SE521129C2 (sv)

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 (3)

Publication Number Publication Date
SE9800776D0 SE9800776D0 (sv) 1998-03-10
SE9800776L SE9800776L (sv) 1998-09-15
SE521129C2 true SE521129C2 (sv) 2003-09-30

Family

ID=8548401

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9800776A SE521129C2 (sv) 1997-03-14 1998-03-10 Sätt och anordning för audiokodning

Country Status (13)

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

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CN1860787A (zh) * 2003-09-29 2006-11-08 手持娱乐公司 用于编码信息的方法和装置
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CN101091317B (zh) * 2005-01-12 2011-05-11 日本电信电话株式会社 用于长期预测编码和长期预测解码的方法和装置
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US7539612B2 (en) * 2005-07-15 2009-05-26 Microsoft Corporation Coding and decoding scale factor information
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US7599840B2 (en) * 2005-07-15 2009-10-06 Microsoft Corporation Selectively using multiple entropy models in adaptive coding and decoding
US8599925B2 (en) 2005-08-12 2013-12-03 Microsoft Corporation Efficient coding and decoding of transform blocks
US7565018B2 (en) * 2005-08-12 2009-07-21 Microsoft Corporation Adaptive coding and decoding of wide-range coefficients
US7933337B2 (en) 2005-08-12 2011-04-26 Microsoft Corporation Prediction of transform coefficients for image compression
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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
US20100292986A1 (en) * 2007-03-16 2010-11-18 Nokia Corporation 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
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CN102016530B (zh) * 2009-02-13 2012-11-14 华为技术有限公司 一种基音周期检测方法和装置
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Also Published As

Publication number Publication date
ES2164414T3 (es) 2002-02-16
FR2761801A1 (fr) 1998-10-09
CN1195930A (zh) 1998-10-14
SE9800776D0 (sv) 1998-03-10
GB2323759A (en) 1998-09-30
US6721700B1 (en) 2004-04-13
EP0966793B1 (en) 2001-09-19
DE19811039B4 (de) 2005-07-21
SE9800776L (sv) 1998-09-15
US20040093208A1 (en) 2004-05-13
FI114248B (fi) 2004-09-15
GB9805294D0 (en) 1998-05-06
AU6216498A (en) 1998-10-12
KR100469002B1 (ko) 2005-01-29
DE19811039A1 (de) 1998-09-17
JPH10282999A (ja) 1998-10-23
JP3391686B2 (ja) 2003-03-31
WO1998042083A1 (en) 1998-09-24
FI971108A (fi) 1998-09-15
GB2323759B (en) 2002-01-16
FI971108A0 (fi) 1997-03-14
KR20000076273A (ko) 2000-12-26
AU733156B2 (en) 2001-05-10
FR2761801B1 (fr) 1999-12-31
US7194407B2 (en) 2007-03-20
CN1135721C (zh) 2004-01-21
JP2003140697A (ja) 2003-05-16
EP0966793A1 (en) 1999-12-29

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