[vorbis] frequency cutoff?

[Alan MacDonald]

> > Does Vorbis do something similar? If so, does someone have a 
> chart of the
> > cutoffs at the different quality settings?
> 
> Cannot find the message in the archives, but if memory serves me 
> well, Monty 
> said that Vorbis cuts at 16KHz at "-q 0" and at 18KHz at "-q 3", the 
> default. Then it goes to 22Khz somewhere around the 4 or 5 quality level.
> 
> I made a few tests and verified these numbers.
> 

>From vorbis/lib/modes/psych_44.h:
/* lowpass **************/
static double _psy_lowpass_44[11]={
  15.1,15.8,16.5,17.9,20.5,48.,999.,999.,999.,999.,999.
};

o q0=15.1, q1=15.8, q2=16.5, q3=17.9, etc...

Later,
Alan

<p><p>--- >8 ----
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