Difference between revisions of "CELT TODO"

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** allow "fractional pulses"
 
** allow "fractional pulses"
 
* Include a configuration packet for more flexibility? (probably not)
 
* 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" ==
 
== "Research topics" ==

Revision as of 17:32, 14 April 2010

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
    • Spreading/folding parameter
    • Stereo bit allocation

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