DK1408484T3 - Forbedring af perceptuel af SBR (spektralbåndreplikation) og HFR (höjfrekvensrekonstruktion) kodefremgangsmåder ved adaptiv basisstöjaddition og stöjsubstitutionsbegrænsning - Google Patents

Forbedring af perceptuel af SBR (spektralbåndreplikation) og HFR (höjfrekvensrekonstruktion) kodefremgangsmåder ved adaptiv basisstöjaddition og stöjsubstitutionsbegrænsning

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Publication number
DK1408484T3
DK1408484T3 DK04000445T DK04000445T DK1408484T3 DK 1408484 T3 DK1408484 T3 DK 1408484T3 DK 04000445 T DK04000445 T DK 04000445T DK 04000445 T DK04000445 T DK 04000445T DK 1408484 T3 DK1408484 T3 DK 1408484T3
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DK
Denmark
Prior art keywords
noise
hfr
high frequency
sbr
limitation
Prior art date
Application number
DK04000445T
Other languages
English (en)
Inventor
Kristofer Kjoerling
Lars Liljeryd
Per Ekstrand
Fredrik Henn
Original Assignee
Coding Tech Ab
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Publication date
Family has litigation
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=DK1408484(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 Coding Tech Ab filed Critical Coding Tech Ab
Application granted granted Critical
Publication of DK1408484T3 publication Critical patent/DK1408484T3/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)
  • Road Paving Structures (AREA)
  • Noise Elimination (AREA)
  • Executing Machine-Instructions (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Building Environments (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Tires In General (AREA)
  • Stereophonic System (AREA)
DK04000445T 1999-01-27 2000-01-26 Forbedring af perceptuel af SBR (spektralbåndreplikation) og HFR (höjfrekvensrekonstruktion) kodefremgangsmåder ved adaptiv basisstöjaddition og stöjsubstitutionsbegrænsning DK1408484T3 (da)

Applications Claiming Priority (2)

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)

Publications (1)

Publication Number Publication Date
DK1408484T3 true DK1408484T3 (da) 2006-01-30

Family

ID=26663489

Family Applications (5)

Application Number Title Priority Date Filing Date
DK04000445T DK1408484T3 (da) 1999-01-27 2000-01-26 Forbedring af perceptuel af SBR (spektralbåndreplikation) og HFR (höjfrekvensrekonstruktion) kodefremgangsmåder ved adaptiv basisstöjaddition 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
DK05020588T DK1617418T3 (da) 1999-01-27 2000-01-26 Audiokodningsfremgangsmåder og -apparater til spektralbåndreplikation og höjfrekvensrekonstruktion under anvendelse af adaptiv basisstöj og stöjsubstitutionsbegrænsning
DK00904174T DK1157374T3 (da) 1999-01-27 2000-01-26 Forbedring af perceptuel præstation af SBR og beslægtede HFR-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

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
DK05020588T DK1617418T3 (da) 1999-01-27 2000-01-26 Audiokodningsfremgangsmåder og -apparater til spektralbåndreplikation og höjfrekvensrekonstruktion under anvendelse af adaptiv basisstöj og stöjsubstitutionsbegrænsning
DK00904174T DK1157374T3 (da) 1999-01-27 2000-01-26 Forbedring af perceptuel præstation af SBR og beslægtede HFR-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

Country Status (15)

Country Link
US (11) USRE43189E1 (da)
EP (5) EP1157374B1 (da)
JP (7) JP3603026B2 (da)
CN (6) CN100587807C (da)
AT (5) ATE311651T1 (da)
AU (1) AU2585700A (da)
BR (4) BR122015007146B1 (da)
DE (5) DE60024501T2 (da)
DK (5) DK1408484T3 (da)
ES (5) ES2334403T3 (da)
HK (6) HK1053534A1 (da)
PT (4) PT1914729E (da)
RU (1) RU2226032C2 (da)
SE (1) SE9903553D0 (da)
WO (1) WO2000045379A2 (da)

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