CELT TODO

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Revision as of 17:34, 14 April 2010 by Jmspeex (talk | contribs)
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Open issues

  • Spreading/folding
    • Uniform quantisation
    • Control over the amount of spreading/folding introduced
    • Make it have the same shape as the rest of the spectrum
  • Tuning
    • Band layout (spacing)
    • Bit allocation
      • Main table
      • Stereo
      • qtheta offset
      • fine offset
    • Spreading/folding parameter

Other decisions to make

  • Should we use raw bits or now?
  • What should we do about remaining bits after the last PVQ?
    • more fine energy?
    • encode bands backward?
    • allow "fractional pulses"
  • Include a configuration packet for more flexibility? (probably not)
  • Use a min width for ebands that's equal to the number of short blocks?

"Research topics"

  • Dynamic allocation
  • Better stereo coupling
  • Investigate other transient algorithms
    • Energy weighting pre- or post-normalization
    • Include energy shape