Jeff Lightfoot wrote:
> Hmmm. Would you mind giving me a little bit of info about the reference to
> increased quality by using jstereo?
>
> I was under the impression it took what was common to both left and right
> and combined it into one that was later decoded to both channels.
>
> Less information so more of the 128k bits can be used for quality? :-)
Basically joint stereo encodes L+R and L-R. Since the positional
information in stereo
doesn't need to be very precise you can allocate a lot of bits of L+R
and few to L-R
and come out ahead overall on quality without losing noticeably in
stereo imaging.
However, from my reading a quite different psycho-acoustic model is used
for compressing L-R,
so its not a simple matter to implement.
Andrew
