[vorbis-dev] Using the vorbis psychoacoustics model

Gregory Maxwell greg at linuxpower.cx
Sat Jul 8 12:28:36 PDT 2000



On Sat, 8 Jul 2000, Gregory Maxwell wrote:

> On Fri, 7 Jul 2000, Mark Taylor wrote:
> 
> [snip]
> > gpsycho is also a partition-band model.  That is, it computes
> > maskings in (about) 64 bands, each about 3.5 barks wide.  I beleive
> > Vorbis does the full "line-by-line calculation" (it computes maskings for
> > every single spectral line/cofficient).  But the energies/maskings of
> > individual MDCT coefficients only make sense when some kind of
> > averaging/smoothing is done, so this is probably not an advantage.
> [snip]
> 
> Yes, the smoor

Eeek, ignore that. I was going to say something then forgot. And My stupid
autopilot sent insted of canceling.

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