• DocumentCode
    1005489
  • Title

    ADPCM using vector predictor and forward adaptive quantiser with step-size prediction

  • Author

    Wong, K.H.J. ; Steele, R.

  • Author_Institution
    University of Southampton, Department of Electronics & Information Engineering, Southampton, UK
  • Volume
    21
  • Issue
    2
  • fYear
    1985
  • Firstpage
    74
  • Lastpage
    75
  • Abstract
    An adaptive differential pulse code modulation (ADPCM) system is described having a set of fixed vector predictors, and a quantiser that is adapted in the forward direction with the distinction that its step size is predicted from previous values. SNR gains compared to DPCM-AQF are presented for bit rates of 16, 24 and 32 kbit/s.
  • Keywords
    analogue-digital conversion; encoding; pulse-code modulation; SNR gains; adaptive differential pulse code modulation; encoding; fixed vector predictors; forward adaptive quantiser; step-size prediction;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19850051
  • Filename
    4250859