[vorbis] Vorbis determined to be as good as MPC at 128 kbps!

[Sebastian Gesemann]

On Tue, 1 Jun 2004, Segher Boessenkool wrote:

> > The HF boost is a modern example.  Sebastian's paper correctly
> > identifies one major source of the slight HF boost people noticed in
> > Vorbis some time ago.
> 
> Using some perceptual models, yes.  Using other models, not at all.

?!
 
> > The solution he suggests is also perfectly workable.
> 
> Workable, but that doesn't mean anything.  A simple noise gate
> would work even better!  (Using his model.  I haven't spent the
> time necessary to evaluate if it actually sounds any better).

I think it's worth mentioning that I agree with Monty, a
modification of the noise normalization code to compensate for the
boost effect is a better idea compared to the solution I gave.

(Basically the effect is pretty much the same but the NN sheme
does not rely on a certain distribution and adjusts the residue
samples dynamically)

I'm not sure about what you mean by "noise gate" and how this is
supposed to be superior to an improved NN sheme.

<p>bye,
Sebastian


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