DK1617418T3 - Audiokodningsfremgangsmåder og -apparater til spektralbåndreplikation og höjfrekvensrekonstruktion under anvendelse af adaptiv basisstöj og stöjsubstitutionsbegrænsning - Google Patents

Audiokodningsfremgangsmåder og -apparater til spektralbåndreplikation og höjfrekvensrekonstruktion under anvendelse af adaptiv basisstöj og stöjsubstitutionsbegrænsning

Info

Publication number
DK1617418T3
DK1617418T3 DK05020588T DK05020588T DK1617418T3 DK 1617418 T3 DK1617418 T3 DK 1617418T3 DK 05020588 T DK05020588 T DK 05020588T DK 05020588 T DK05020588 T DK 05020588T DK 1617418 T3 DK1617418 T3 DK 1617418T3
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DK
Denmark
Prior art keywords
noise
high frequency
audio coding
frequency reconstruction
limitation
Prior art date
Application number
DK05020588T
Other languages
Danish (da)
English (en)
Inventor
Lars Liljeryd
Kristofer Kjoerling
Per Ekstrand
Fredrik Henn
Original Assignee
Dolby Sweden Ab
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Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26663489&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK1617418(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from SE9900256A external-priority patent/SE9900256D0/xx
Application filed by Dolby Sweden Ab filed Critical Dolby Sweden Ab
Application granted granted Critical
Publication of DK1617418T3 publication Critical patent/DK1617418T3/da

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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
    • G10L19/028—Noise substitution, i.e. substituting non-tonal spectral components by noisy source
    • 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
    • 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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • 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
    • G10L19/26—Pre-filtering or post-filtering
    • 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
    • G10L19/26—Pre-filtering or post-filtering
    • G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to encoding
    • 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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G10L19/035—Scalar quantisation
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Networks Using Active Elements (AREA)
  • Building Environments (AREA)
  • Noise Elimination (AREA)
  • Tires In General (AREA)
  • Road Paving Structures (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Stereophonic System (AREA)
  • Executing Machine-Instructions (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Compositions Of Oxide Ceramics (AREA)
DK05020588T 1999-01-27 2000-01-26 Audiokodningsfremgangsmåder og -apparater til spektralbåndreplikation og höjfrekvensrekonstruktion under anvendelse af adaptiv basisstöj og stöjsubstitutionsbegrænsning DK1617418T3 (da)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9900256A SE9900256D0 (sv) 1999-01-27 1999-01-27 Metod och anordning för förbättring av effektivitet och ljudkvalitet hos ljudkodare
SE9903553A SE9903553D0 (sv) 1999-01-27 1999-10-01 Enhancing percepptual performance of SBR and related coding methods by adaptive noise addition (ANA) and noise substitution limiting (NSL)
PCT/SE2000/000159 WO2000045379A2 (fr) 1999-01-27 2000-01-26 Amelioration de la performance perceptive dans des methodes de codage sbr et des methodes hfr connexes par addition adaptative de bruits de fond et par limitation de la substitution des parasites

Publications (1)

Publication Number Publication Date
DK1617418T3 true DK1617418T3 (da) 2008-09-01

Family

ID=26663489

Family Applications (5)

Application Number Title Priority Date Filing Date
DK05020588T DK1617418T3 (da) 1999-01-27 2000-01-26 Audiokodningsfremgangsmåder og -apparater til spektralbåndreplikation og höjfrekvensrekonstruktion under anvendelse af adaptiv basisstöj og stöjsubstitutionsbegrænsning
DK08000694.3T DK1914728T3 (da) 1999-01-27 2000-01-26 Fremgangsmåde og apparat til dekodning af et signal under anvendelse af spektralbåndreplikation og interpolation af skalafaktorer
DK04000445T DK1408484T3 (da) 1999-01-27 2000-01-26 Forbedring af perceptuel af SBR (spektralbåndreplikation) og HFR (höjfrekvensrekonstruktion) kodefremgangsmåder ved adaptiv basisstöjaddition og stöjsubstitutionsbegrænsning
DK08000695.0T DK1914729T3 (da) 1999-01-27 2000-01-26 Apparat og fremgangsmåde til justering af den spektrale indhyllingskurve af et højfrekvensrekonstrueret signal
DK00904174T DK1157374T3 (da) 1999-01-27 2000-01-26 Forbedring af perceptuel præstation af SBR og beslægtede HFR-kodefremgangsmåder ved adaptiv basisstöjaddition og stöjsubstitutionsbegrænsning

Family Applications After (4)

Application Number Title Priority Date Filing Date
DK08000694.3T DK1914728T3 (da) 1999-01-27 2000-01-26 Fremgangsmåde og apparat til dekodning af et signal under anvendelse af spektralbåndreplikation og interpolation af skalafaktorer
DK04000445T DK1408484T3 (da) 1999-01-27 2000-01-26 Forbedring af perceptuel af SBR (spektralbåndreplikation) og HFR (höjfrekvensrekonstruktion) kodefremgangsmåder ved adaptiv basisstöjaddition og stöjsubstitutionsbegrænsning
DK08000695.0T DK1914729T3 (da) 1999-01-27 2000-01-26 Apparat og fremgangsmåde til justering af den spektrale indhyllingskurve af et højfrekvensrekonstrueret signal
DK00904174T DK1157374T3 (da) 1999-01-27 2000-01-26 Forbedring af perceptuel præstation af SBR og beslægtede HFR-kodefremgangsmåder ved adaptiv basisstöjaddition og stöjsubstitutionsbegrænsning

Country Status (15)

Country Link
US (11) USRE43189E1 (fr)
EP (5) EP1408484B1 (fr)
JP (7) JP3603026B2 (fr)
CN (6) CN1181467C (fr)
AT (5) ATE395688T1 (fr)
AU (1) AU2585700A (fr)
BR (4) BR122015007138B1 (fr)
DE (5) DE60043363D1 (fr)
DK (5) DK1617418T3 (fr)
ES (5) ES2334404T3 (fr)
HK (6) HK1053534A1 (fr)
PT (4) PT1914729E (fr)
RU (1) RU2226032C2 (fr)
SE (1) SE9903553D0 (fr)
WO (1) WO2000045379A2 (fr)

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