> This may be a stupid question, but isn't it fun to learn (or teach) new things? :)
> What, roughly, are the technical differences between layer 2 and layer 3? The
> only thing I know, is that they work with different bitrates (layer 3
> supporting lower bitrates).
Layer II does _not_ have:
window switching (short blocks)
hybrid transform (mdct stuff)
bit reservoir
It _does_ have:
much better scalefactors (more finegrained)
The layer II scalefactors are a lot cheaper most of the time, and sometimes
you pay a lot for saving too much :-(
Any other differences I'm forgetting?
Ciao,
Segher
--
MP3 ENCODER mailing list ( http://geek.rcc.se/mp3encoder/ )
