[vorbis-dev] patents and separate entropy coding

[Segher Boessenkool]

> Vorbis also doesn't encode the spectral results of the MDCT.  The
> spectral values are passed through a whitening filter first (the
> 'floor' is effectively an IIR filter), and this distiction is
> important.

It is FIR, not IIR, I think? Only a finite number of samples
are affected?

Ciao,

Segher

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