[CELT-dev] Codebook table

Jean-Marc Valin jmvalin at jmvalin.ca
Mon May 9 21:25:51 PDT 2011

I used the LBG algorithm, but as Tim pointed out. This code is long dead 
(for the better).


On 11-05-09 03:11 PM, Timothy B. Terriberry wrote:
>> 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:
> http://en.wikipedia.org/wiki/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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