> >
> > Hi all,
> >
> > Does lame implement side channel starving? If not, I'll volunteer :-)
Hija,
I coded some stuff last night... Doesn't sound to good, though. I guess I'm
not sprsing the side channel, but the left channel... ouch :-)
Anyway, I'll explain the rationale behind the sparsing:
At high frequencies, humans only decide direction of the sound by the
relative left/right intensity, not by phase difference. So if for some high
frequency the left/right difference is small, the side channel can be
zeroed at that frequency. Something like:
if (S*S < factor*M*M) S = 0;
Of course, the iso docs mangle this to something unreadable with L and R
channel, etc. But it's equivalent.
Anyone come up with a better formula?
Ciao,
Segher
--
MP3 ENCODER mailing list ( http://geek.rcc.se/mp3encoder/ )
