HK1058096A1 - Enhancing the performance of coding systems that use high frequency reconstruction methods. - Google Patents

Enhancing the performance of coding systems that use high frequency reconstruction methods.

Info

Publication number
HK1058096A1
HK1058096A1 HK03108655A HK03108655A HK1058096A1 HK 1058096 A1 HK1058096 A1 HK 1058096A1 HK 03108655 A HK03108655 A HK 03108655A HK 03108655 A HK03108655 A HK 03108655A HK 1058096 A1 HK1058096 A1 HK 1058096A1
Authority
HK
Hong Kong
Prior art keywords
frequency
audio signal
high frequency
crossover frequency
core encoder
Prior art date
Application number
HK03108655A
Other languages
English (en)
Inventor
Fredrik Henn
Andreas Ehret
Michael Schug
Original Assignee
Coding Technologies A B
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 Coding Technologies A B filed Critical Coding Technologies A B
Publication of HK1058096A1 publication Critical patent/HK1058096A1/xx

Links

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
    • 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
HK03108655A 2000-11-15 2003-11-27 Enhancing the performance of coding systems that use high frequency reconstruction methods. HK1058096A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0004187A SE0004187D0 (sv) 2000-11-15 2000-11-15 Enhancing the performance of coding systems that use high frequency reconstruction methods
PCT/SE2001/002533 WO2002041302A1 (en) 2000-11-15 2001-11-14 Enhancing the performance of coding systems that use high frequency reconstruction methods

Publications (1)

Publication Number Publication Date
HK1058096A1 true HK1058096A1 (en) 2004-04-30

Family

ID=20281835

Family Applications (1)

Application Number Title Priority Date Filing Date
HK03108655A HK1058096A1 (en) 2000-11-15 2003-11-27 Enhancing the performance of coding systems that use high frequency reconstruction methods.

Country Status (15)

Country Link
US (1) US7050972B2 (xx)
EP (1) EP1334484B1 (xx)
JP (6) JP3983668B2 (xx)
KR (1) KR100551862B1 (xx)
CN (1) CN1232950C (xx)
AT (1) ATE267445T1 (xx)
AU (1) AU2002215282A1 (xx)
DE (1) DE60103424T2 (xx)
DK (1) DK1334484T3 (xx)
ES (1) ES2218462T3 (xx)
HK (1) HK1058096A1 (xx)
PT (1) PT1334484E (xx)
SE (1) SE0004187D0 (xx)
TR (1) TR200401631T4 (xx)
WO (1) WO2002041302A1 (xx)

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Also Published As

Publication number Publication date
ATE267445T1 (de) 2004-06-15
JP6592148B2 (ja) 2019-10-16
US20020103637A1 (en) 2002-08-01
EP1334484B1 (en) 2004-05-19
DE60103424D1 (de) 2004-06-24
JP5933965B2 (ja) 2016-06-15
CN1232950C (zh) 2005-12-21
KR20030076576A (ko) 2003-09-26
AU2002215282A1 (en) 2002-05-27
US7050972B2 (en) 2006-05-23
JP2014089472A (ja) 2014-05-15
JP2012093774A (ja) 2012-05-17
JP3983668B2 (ja) 2007-09-26
EP1334484A1 (en) 2003-08-13
JP2007293354A (ja) 2007-11-08
DK1334484T3 (da) 2004-08-09
JP6368740B2 (ja) 2018-08-01
PT1334484E (pt) 2004-09-30
TR200401631T4 (tr) 2004-09-21
JP6207404B2 (ja) 2017-10-04
ES2218462T3 (es) 2004-11-16
JP2018185530A (ja) 2018-11-22
SE0004187D0 (sv) 2000-11-15
CN1475010A (zh) 2004-02-11
JP4991397B2 (ja) 2012-08-01
JP2016189015A (ja) 2016-11-04
WO2002041302A1 (en) 2002-05-23
JP2004514180A (ja) 2004-05-13
KR100551862B1 (ko) 2006-02-13
DE60103424T2 (de) 2005-06-16

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