[vorbis] OGG IS BEST, BUT UNUSABLE! (very important)]

[Monty]

> >From a quick look at the code (diff between HEAD and the beta3 tag), it
> looks like preecho triggering is changed in a fairly major way (i.e.
> _ve_deltai() is more or less completely different, and this is the core
> function for preecho trigger). Certainly it isn't the same.
> 
> As I recall, this is one of the bits you did take from Segher's big
> patches. Perhaps the replacement code here doesn't work as well as the
> older/slower code.

The FFT stuff I was doing was vestigal, and Segher spotted it.
Whether I'm doing power estimation in time or frequency doamin, the
energy is equal.  The behavior should be totally equivalent (and
appeared to be so in my testing).

Now, the way short blocks are encoded *is* different, and the new
noise curve estimation does behave very differently.  But short blocks
should still happen int he same places.

Monty

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