[CELT-dev] Codebook table
Timothy B. Terriberry
tterribe at xiph.org
Mon May 9 12:11:25 PDT 2011
> There is a coodebook for the pitch gains stored in pgain_table.h. How
> can we get such a table? I have read in the CELT's paper that the
> codebook is trained, but I do not understand what that realy means. Can
> anyone give me an idea about that?
I don't know what approach Jean-Marc used, but most likely something
simple and straightforward like Lloyd's algorithm:
or LBG: http://en.wikipedia.org/wiki/Linde–Buzo–Gray_algorithm
However, CELT no longer uses the pitch predictor described in that
paper, and thus no longer requires its trained codebooks.
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