[vorbis-dev] Stereo mode settings

[Sebastian Gesemann]

On Fri, 6 Feb 2004, Segher Boessenkool wrote:

> > You could test this effect on monoaural files.
> > The "HF boost" will still be present.
> > It's because of heavy quantization. The SNR is *so*
> > low at high frequencies in low bitrate modes, that the
> > quantization error increases energy noticably.
>
> Ooh, if *this* causes that "HF boost" problem, I know how
> to fix it (I fixed it for Lame a few years ago ;-) )

I already pointed that out a year ago (or so), but nobody
seemd to care. Here's another somewhat more meaningful test
picture than the last one I sent. It should speak for itself.
The "boost" is clearly related to the SNR.

> Stay tuned...

I do ;)

<p>BTW: Apologies for that (small) attachmet.
I've no place to put it on the web anywhere.

<p>Ghis!
Sebastian
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