TR200401631T4 - Yüksek frekanslı yeniden yapılandırma yöntemlerini kullanan kodlama sistemlerinin performansının artırılması. - Google Patents

Yüksek frekanslı yeniden yapılandırma yöntemlerini kullanan kodlama sistemlerinin performansının artırılması.

Info

Publication number
TR200401631T4
TR200401631T4 TR2004/01631T TR200401631T TR200401631T4 TR 200401631 T4 TR200401631 T4 TR 200401631T4 TR 2004/01631 T TR2004/01631 T TR 2004/01631T TR 200401631 T TR200401631 T TR 200401631T TR 200401631 T4 TR200401631 T4 TR 200401631T4
Authority
TR
Turkey
Prior art keywords
frequency
audio signal
high frequency
crossover frequency
core encoder
Prior art date
Application number
TR2004/01631T
Other languages
English (en)
Inventor
Henn Fredrik
Ehret Andreas
Schug Michael
Original Assignee
Coding Technologies Ab
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 Ab filed Critical Coding Technologies Ab
Publication of TR200401631T4 publication Critical patent/TR200401631T4/tr

Links

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
    • G10L19/02—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 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
    • G10L21/00—Speech or voice signal processing techniques 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Optical Communication System (AREA)
  • Transmitters (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

Sunulan bulus yüksek frekans yeniden yapilandirma (HFR) (high frequency reconstruction) yöntemlerini kullanan dijital ses sinyali kodlama sistemleri ile ilgilidir. Daha istikrarli bir merkez kodek (core codec) performansi ve merkez kodek ile HFR sisteminde artirilmis bir ses (audio) kalitesi saglar. Ani ve en yüksek kalitede esik frekansi seçiminin yapilmasi için degisik metodlar sunulmaktadir.
TR2004/01631T 2000-11-15 2001-11-14 Yüksek frekanslı yeniden yapılandırma yöntemlerini kullanan kodlama sistemlerinin performansının artırılması. TR200401631T4 (tr)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
TR200401631T4 true TR200401631T4 (tr) 2004-09-21

Family

ID=20281835

Family Applications (1)

Application Number Title Priority Date Filing Date
TR2004/01631T TR200401631T4 (tr) 2000-11-15 2001-11-14 Yüksek frekanslı yeniden yapılandırma yöntemlerini kullanan kodlama sistemlerinin performansının artırılması.

Country Status (14)

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

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Also Published As

Publication number Publication date
JP2012093774A (ja) 2012-05-17
EP1334484A1 (en) 2003-08-13
DK1334484T3 (da) 2004-08-09
JP6207404B2 (ja) 2017-10-04
CN1475010A (zh) 2004-02-11
US7050972B2 (en) 2006-05-23
ATE267445T1 (de) 2004-06-15
DE60103424T2 (de) 2005-06-16
PT1334484E (pt) 2004-09-30
JP5933965B2 (ja) 2016-06-15
JP2014089472A (ja) 2014-05-15
US20020103637A1 (en) 2002-08-01
CN1232950C (zh) 2005-12-21
DE60103424D1 (de) 2004-06-24
JP6368740B2 (ja) 2018-08-01
KR100551862B1 (ko) 2006-02-13
WO2002041302A1 (en) 2002-05-23
JP4991397B2 (ja) 2012-08-01
JP6592148B2 (ja) 2019-10-16
JP3983668B2 (ja) 2007-09-26
JP2004514180A (ja) 2004-05-13
KR20030076576A (ko) 2003-09-26
AU2002215282A1 (en) 2002-05-27
JP2018185530A (ja) 2018-11-22
SE0004187D0 (sv) 2000-11-15
JP2016189015A (ja) 2016-11-04
ES2218462T3 (es) 2004-11-16
HK1058096A1 (en) 2004-04-30
EP1334484B1 (en) 2004-05-19
JP2007293354A (ja) 2007-11-08

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