• DocumentCode
    3404415
  • Title

    High-quality audio transform coded excitation using trellis codes

  • Author

    Fischer, Thomas R. ; Sung, Hosang ; Zhan, Jie ; Oh, Eunmi

  • Author_Institution
    Sch. of EECS, Washington State Univ., Pullman, WA
  • fYear
    2008
  • fDate
    March 31 2008-April 4 2008
  • Firstpage
    197
  • Lastpage
    200
  • Abstract
    A trellis source code and novel variable-length lossless code are used in transform coded excitation audio coding. Implemented within the extended adaptive multi-rate wideband (AMR-WB+) audio coding framework, the proposed quantization and lossless coding method provide between 0.4 and 0.7 dB increase in signal-to-noise ratio over the E8 lattice VQ and spherical lossless code used in the AMR-WB+ standard.
  • Keywords
    audio coding; source coding; transform coding; trellis codes; variable length codes; extended adaptive multi-rate wideband; high-quality audio transform coded excitation; transform coded excitation audio coding; trellis source code; Audio coding; Code standards; Convolutional codes; Discrete Fourier transforms; Encoding; Lattices; Performance loss; Quantization; Source coding; Wideband; transform coded excitation; trellis code;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Acoustics, Speech and Signal Processing, 2008. ICASSP 2008. IEEE International Conference on
  • Conference_Location
    Las Vegas, NV
  • ISSN
    1520-6149
  • Print_ISBN
    978-1-4244-1483-3
  • Electronic_ISBN
    1520-6149
  • Type

    conf

  • DOI
    10.1109/ICASSP.2008.4517580
  • Filename
    4517580
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3404415