[vorbis-dev] Vorbis

[Greg Maxwell]

Monty wrote:
> 
> > I've been reading through the source, and I can't understand where
> > compression is occuring!
> 
> It isn't :-)  This is an unfinished codebase and the in-progress back end
> coding is not finished or committed.

This is what I thought.. But why is the output smaller then the input?
 
> It is.  The entropy at that point is about 1.1-1.2 bits/sample, but the full
> dynamic range of the output residuals are about 6 bits.  Vorbis is not yet
> 'compressing' it, so it's outputting the full 6 bits/sample (even though the
> majority of the bits wasted).
> 

What I dont understand is: If it's not actually compressing, then why is
the output smaller then the input and why isn't the output = input +/-
rounding errors?

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