DE60303214D1 - Verfahren zur reduzierung von aliasing-störungen, die durch die anpassung der spektralen hüllkurve in realwertfilterbanken verursacht werden - Google Patents

Verfahren zur reduzierung von aliasing-störungen, die durch die anpassung der spektralen hüllkurve in realwertfilterbanken verursacht werden

Info

Publication number
DE60303214D1
DE60303214D1 DE60303214T DE60303214T DE60303214D1 DE 60303214 D1 DE60303214 D1 DE 60303214D1 DE 60303214 T DE60303214 T DE 60303214T DE 60303214 T DE60303214 T DE 60303214T DE 60303214 D1 DE60303214 D1 DE 60303214D1
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DE
Germany
Prior art keywords
real
adaptation
procedure
filter banks
value filter
Prior art date
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Expired - Lifetime
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DE60303214T
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English (en)
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DE60303214T2 (de
Inventor
Kristofer Kjoerling
Lars Villemoes
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Coding Technologies Sweden AB
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Coding Technologies Sweden AB
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Classifications

    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
    • 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
    • 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
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • G10L19/025—Detection of transients or attacks for time/frequency resolution switching
    • 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
    • G10L19/083—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being an excitation gain
    • 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
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
    • 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
    • G10L19/26—Pre-filtering or post-filtering
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/12—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being prediction coefficients
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/21—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being power information
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0248—Filters characterised by a particular frequency response or filtering method
    • H03H17/0264—Filter sets with mutual related characteristics
    • H03H17/0266—Filter banks
DE60303214T 2002-09-18 2003-08-27 Verfahren zur reduzierung von aliasing-störungen, die durch die anpassung der spektralen hüllkurve in realwertfilterbanken verursacht werden Expired - Lifetime DE60303214T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0202770 2002-09-18
SE0202770A SE0202770D0 (sv) 2002-09-18 2002-09-18 Method for reduction of aliasing introduces by spectral envelope adjustment in real-valued filterbanks
PCT/EP2003/009485 WO2004027998A2 (en) 2002-09-18 2003-08-27 Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks

Publications (2)

Publication Number Publication Date
DE60303214D1 true DE60303214D1 (de) 2006-04-06
DE60303214T2 DE60303214T2 (de) 2006-09-21

Family

ID=20289031

Family Applications (4)

Application Number Title Priority Date Filing Date
DE60334653T Expired - Lifetime DE60334653D1 (de) 2002-09-18 2003-08-27 Vorrichtung zur Bewertung einer Energie eines Signals mit Teilband-Signalen sowie die zugehörige Methode
DE60333872T Expired - Lifetime DE60333872D1 (de) 2002-09-18 2003-08-27 Vorrichtung zur Berechnung von Gain-Anpassungswerten zur Anpassung des Gains einer Mehrzahl von Teilband-Signalen in real-wertigen Filterbänken und zugehörige Methode
DE60317722T Expired - Lifetime DE60317722T2 (de) 2002-09-18 2003-08-27 Verfahren zur Reduzierung von Aliasing-Störungen, die durch die Anpassung der spektralen Hüllkurve in Realwertfilterbanken verursacht werden
DE60303214T Expired - Lifetime DE60303214T2 (de) 2002-09-18 2003-08-27 Verfahren zur reduzierung von aliasing-störungen, die durch die anpassung der spektralen hüllkurve in realwertfilterbanken verursacht werden

Family Applications Before (3)

Application Number Title Priority Date Filing Date
DE60334653T Expired - Lifetime DE60334653D1 (de) 2002-09-18 2003-08-27 Vorrichtung zur Bewertung einer Energie eines Signals mit Teilband-Signalen sowie die zugehörige Methode
DE60333872T Expired - Lifetime DE60333872D1 (de) 2002-09-18 2003-08-27 Vorrichtung zur Berechnung von Gain-Anpassungswerten zur Anpassung des Gains einer Mehrzahl von Teilband-Signalen in real-wertigen Filterbänken und zugehörige Methode
DE60317722T Expired - Lifetime DE60317722T2 (de) 2002-09-18 2003-08-27 Verfahren zur Reduzierung von Aliasing-Störungen, die durch die Anpassung der spektralen Hüllkurve in Realwertfilterbanken verursacht werden

Country Status (18)

Country Link
US (18) US7577570B2 (de)
EP (5) EP2239847B1 (de)
JP (5) JP4328720B2 (de)
KR (3) KR100697255B1 (de)
CN (3) CN101505144B (de)
AT (3) ATE315845T1 (de)
AU (1) AU2003270114B2 (de)
CA (7) CA2924913C (de)
DE (4) DE60334653D1 (de)
DK (3) DK1986321T3 (de)
ES (5) ES2354002T3 (de)
HK (3) HK1077413A1 (de)
MX (1) MXPA05002628A (de)
NO (12) NO345377B1 (de)
SE (1) SE0202770D0 (de)
UA (1) UA79301C2 (de)
WO (1) WO2004027998A2 (de)
ZA (1) ZA200500873B (de)

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CA2924913A1 (en) 2004-04-01
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US11423916B2 (en) 2022-08-23
SE0202770D0 (sv) 2002-09-18
EP2239847A2 (de) 2010-10-13
NO20051861L (no) 2005-04-15
CN101505145A (zh) 2009-08-12
US20080015868A1 (en) 2008-01-17
US20040117177A1 (en) 2004-06-17
EP1643642A1 (de) 2006-04-05
HK1129169A1 (en) 2009-11-20
JP2011010346A (ja) 2011-01-13
NO343508B1 (no) 2019-03-25
NO20092677L (no) 2005-04-15
US9990929B2 (en) 2018-06-05
DE60317722T2 (de) 2008-09-25
US8346566B2 (en) 2013-01-01
NO344083B1 (no) 2019-09-02
NO343509B1 (no) 2019-03-25
EP1986321A2 (de) 2008-10-29
NO20190931A1 (no) 2005-04-15
DE60317722D1 (de) 2008-01-03
HK1077413A1 (en) 2006-02-10
NO20180075A1 (no) 2005-04-15
US9542950B2 (en) 2017-01-10
US9847089B2 (en) 2017-12-19
KR100890201B1 (ko) 2009-03-25
JP2012123428A (ja) 2012-06-28
CA2924914C (en) 2018-06-26
US10013991B2 (en) 2018-07-03
CA3040083A1 (en) 2004-04-01
CA2688871A1 (en) 2004-04-01
NO336926B1 (no) 2015-11-23
US8108209B2 (en) 2012-01-31
US7577570B2 (en) 2009-08-18
UA79301C2 (en) 2007-06-11
US10418040B2 (en) 2019-09-17
JP4328720B2 (ja) 2009-09-09
CA2924915C (en) 2018-08-14
EP2239847B1 (de) 2013-10-09
WO2004027998A2 (en) 2004-04-01
CA2496665C (en) 2011-02-15
ES2350746T3 (es) 2011-01-26
WO2004027998A3 (en) 2004-05-27
AU2003270114B2 (en) 2006-11-23
US20120284033A1 (en) 2012-11-08
DK1643642T3 (da) 2010-11-29
KR20050054947A (ko) 2005-06-10
NO20180077A1 (no) 2005-04-15
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NO336930B1 (no) 2015-11-30
US20080010061A1 (en) 2008-01-10
CA2924915A1 (en) 2004-04-01
ES2256773T3 (es) 2006-07-16
NO335321B1 (no) 2014-11-10
ATE478471T1 (de) 2010-09-15
NO343469B1 (no) 2019-03-18
JP2006514314A (ja) 2006-04-27
US9842600B2 (en) 2017-12-12
EP1527517A2 (de) 2005-05-04
EP1635461A1 (de) 2006-03-15
ZA200500873B (en) 2007-03-28
NO20180181A1 (no) 2005-04-15
NO340385B1 (no) 2017-04-10
NO20150891L (no) 2005-04-15
US20170243593A1 (en) 2017-08-24
HK1131473A1 (en) 2010-03-05
ES2354002T3 (es) 2011-03-09
KR20060111740A (ko) 2006-10-27
US20110054914A1 (en) 2011-03-03
JP2009169435A (ja) 2009-07-30
CA2924913C (en) 2019-06-04
US8606587B2 (en) 2013-12-10
US20140074462A1 (en) 2014-03-13
CN101505144A (zh) 2009-08-12
JP5577187B2 (ja) 2014-08-20
DE60334653D1 (de) 2010-12-02
US20200380999A1 (en) 2020-12-03
US7548864B2 (en) 2009-06-16
US8145475B2 (en) 2012-03-27
ES2440287T3 (es) 2014-01-28
NO343466B1 (no) 2019-03-18
CA2924914A1 (en) 2004-04-01
EP1986321A3 (de) 2009-04-01
JP5132627B2 (ja) 2013-01-30
NO20150250A1 (no) 2015-02-23
DK2239847T3 (da) 2014-01-20
CA2688916A1 (en) 2004-04-01
US20090234646A1 (en) 2009-09-17
US20190066707A1 (en) 2019-02-28
KR100697255B1 (ko) 2007-03-21
US20170110136A1 (en) 2017-04-20
CA3040083C (en) 2020-01-14
US10685661B2 (en) 2020-06-16
DK1986321T3 (da) 2011-01-24
US8498876B2 (en) 2013-07-30
CA2496665A1 (en) 2004-04-01
NO20180074A1 (no) 2005-04-15
US20180061427A1 (en) 2018-03-01
NO343510B1 (no) 2019-03-25
US20180053516A1 (en) 2018-02-22
JP5557467B2 (ja) 2014-07-23
NO340225B1 (no) 2017-03-20
CA2688916C (en) 2013-03-26
AU2003270114A1 (en) 2004-04-08
JP2009171610A (ja) 2009-07-30
CN1689226A (zh) 2005-10-26
US10115405B2 (en) 2018-10-30
CN101505145B (zh) 2012-05-23
EP1527517B1 (de) 2006-01-11
US7590543B2 (en) 2009-09-15
JP5326020B2 (ja) 2013-10-30
US20090259479A1 (en) 2009-10-15
ATE315845T1 (de) 2006-02-15
EP1643642B1 (de) 2010-08-18
MXPA05002628A (es) 2005-09-08
NO20180078A1 (no) 2005-04-15
CN101505144B (zh) 2012-05-16
US20180082698A1 (en) 2018-03-22
ES2297600T3 (es) 2008-05-01
DE60333872D1 (de) 2010-09-30
NO345377B1 (no) 2021-01-11
ATE485628T1 (de) 2010-11-15
US20180053517A1 (en) 2018-02-22
DE60303214T2 (de) 2006-09-21
EP1986321B1 (de) 2010-10-20
US20190362729A1 (en) 2019-11-28
CN100466471C (zh) 2009-03-04
CA2688871C (en) 2016-11-01
KR20060112618A (ko) 2006-11-01
US10157623B2 (en) 2018-12-18
NO20180076A1 (no) 2005-04-15
US20120284034A1 (en) 2012-11-08

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