[vorbis-dev] high frequency boost paper (was: Re: Stereo mode settings)

Sebastian Gesemann sgeseman at upb.de
Tue Mar 2 13:57:55 PST 2004


On Thu, 19 Feb 2004, Sebastian Gesemann wrote:

> Anyway, I tinkered a bit around this quantization issue and I came
> up to some serious math formuals able to determine the optimal
> quantization thresholds for a given sample distribution. (optimal
> in sense that the energy of the quantized signal is *very* close
> to the original. And personal experiements showed that it does not
> decrease the signal-to-noise ratio that much.
>
> I've some ideas how one could implement this modified quantization
> sheme but i've nearly no experience with the reference code nor
> with the C language (I've no C compiler/linux)
>
> Therefore, my suggestion would be: I present a detailed paper of
> my thoughts (how I think we can solve this HF boost issue) and you
> Segher (or any other skilled person) would help to put it in
> practice.

Well...
Here it is!
Have fun!

<p>Ghis revido!
Sebastian


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