Displaying 2 results from an estimated 2 matches for "locksunart".
Did you mean:
lockstart
2000 Nov 26
1
Trivial 12% performance gain in encoding
(well, YMMV, but it got me 12% on Mac OS X Public Beta on my test case).
In vorbis/lib/scales.h, add the following after fromdB()
#define sqrt_fromdB(x) (exp((x)*.11512925*0.5))
In vorbis/lib/psy.c at the bottom of bark_noise(), do:
< noise[i]=sqrt(fromdB(v));
> noise[i]=sqrt_fromdB(v);
This avoids the sqrt() call entirely by just doing it as part of the exp().
(I'd
2000 Sep 13
3
end-user mode for a moment (side-by-side tests)
Smack my curiosity, but I encoded some songs in Vorbis mode 2 and tried
to be able to distinguish the difference between that and the uncompressed
WAVs. (*smacks self*) but here's what I noted:
It's actually kind of hard to tell the difference :) (and I consider myself
to have a decent set of ears, though not anywhere near the best)
I got my accuracy to about 90%, but I couldn't