DE60336744D1 - Methoden zur interoperabilität zwischen adaptiven multiraten breitband-sprachkodierern (amr-wb) und multimode-breitband-sprachkodierern mit variabler bitrate (vmr-wb) - Google Patents

Methoden zur interoperabilität zwischen adaptiven multiraten breitband-sprachkodierern (amr-wb) und multimode-breitband-sprachkodierern mit variabler bitrate (vmr-wb)

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Publication number
DE60336744D1
DE60336744D1 DE60336744T DE60336744T DE60336744D1 DE 60336744 D1 DE60336744 D1 DE 60336744D1 DE 60336744 T DE60336744 T DE 60336744T DE 60336744 T DE60336744 T DE 60336744T DE 60336744 D1 DE60336744 D1 DE 60336744D1
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Prior art keywords
amr
wideband
rate
vmr
codec
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Milan Jelinek
Redwan Salami
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Nokia Oyj
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Nokia Oyj
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    • 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
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered 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
    • G10L19/012—Comfort noise or silence coding
    • 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
    • G10L19/173—Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding
    • 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
    • G10L25/93—Discriminating between voiced and unvoiced parts of speech signals

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Studio Devices (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
DE60336744T 2002-10-11 2003-10-10 Methoden zur interoperabilität zwischen adaptiven multiraten breitband-sprachkodierern (amr-wb) und multimode-breitband-sprachkodierern mit variabler bitrate (vmr-wb) Expired - Lifetime DE60336744D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US41766702P 2002-10-11 2002-10-11
PCT/CA2003/001572 WO2004034376A2 (en) 2002-10-11 2003-10-10 Methods for interoperation between adaptive multi-rate wideband (amr-wb) and multi-mode variable bit-rate wideband (wmr-wb) speech codecs

Publications (1)

Publication Number Publication Date
DE60336744D1 true DE60336744D1 (de) 2011-05-26

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DE60336744T Expired - Lifetime DE60336744D1 (de) 2002-10-11 2003-10-10 Methoden zur interoperabilität zwischen adaptiven multiraten breitband-sprachkodierern (amr-wb) und multimode-breitband-sprachkodierern mit variabler bitrate (vmr-wb)

Country Status (15)

Country Link
US (1) US7203638B2 (de)
EP (2) EP1550108A2 (de)
JP (2) JP2006502426A (de)
KR (2) KR100711280B1 (de)
CN (2) CN1703736A (de)
AT (1) ATE505786T1 (de)
AU (2) AU2003278013A1 (de)
BR (2) BR0315179A (de)
CA (2) CA2501368C (de)
DE (1) DE60336744D1 (de)
EG (1) EG23923A (de)
ES (1) ES2361154T3 (de)
MY (2) MY134085A (de)
RU (2) RU2331933C2 (de)
WO (2) WO2004034379A2 (de)

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US20050267746A1 (en) 2005-12-01
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CA2501369A1 (en) 2004-04-22
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