[vorbis] RC3: I'm impressed

[Segher Boessenkool]

> Correct me if I'm wrong, but doesn't it save bits with the lossless
> channel coupling aswell? I was under the impression it used a lossless
> algoritm while still not encoding each channel completely separately.

Correct; if using residue2 (all current modes use it), the vectors used
for the vector quantization contain data from both channels.  In this way,
it is able to exploit the redundancy between the channels.

<p>Segher

<p>--- >8 ----
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