[vorbis] Re: [vorbis-dev] high frequencies response

Monty xiphmont at xiph.org
Sat Oct 12 02:48:22 PDT 2002



> I believe that with the lossless-stereo switch I wouldn't hear the
> difference on ***ANY*** samples at much lower q settings, allowing me to
> use perhaps q6 or even less. Do you understand my point?

Well, below -q4 or so, the vast majority of the bitrate redustion is
being had via stealing bits from stereo.  -q1 isn;t quite the same as
-q4 with more aggressive stereo, but it's close.

> Anyway I believe that the resultant lossless-stereo file at e.g. q4 is
> 
> -> larger in size and better in quality
> not
> -> same size and worse quality
> 
> than a "normal" q4. Am I wrong?

No, your thinking is absolutely correct.

Monty
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