[vorbis] Codebook Flexibility

[Cherniavsky Beni]

I've tried to understand the codebook matter (but haven't yet had
time to read the source).

I want to understand how ibg is the flexibility resulting from packing
the codebook in the header of every bitstream.

Can we, for example, change the volume of the whole sound by scaling
the vectors in the codebook?  (My guess is that this wouldn't be enough,
as we have to scale the floor of every frame too).  That would be cool.

A similar question about equalizing/filtering by playing with the
codevectors.

A somewhat unrelated question: how different is the MP3 decoding from
Vorbis?  Specifically, can we create a lossless mapping utility from
MP3 to Vorbis without re-encoding (using a specialized for this codebook
maybe - although MP3 doesn't use vq).


-- 
Beni Cherniavsky <cben at crosswinds.net>
                 (also scben at t2,cben at tx in Technion)

  No, No! You're not thinking; you're just being logical.
                                             - Niels Bohr

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