[MPlayer-users] introducing DVD-to-DivX approach that fixes A/V sync problems

Rich Felker dalias at aerifal.cx
Thu Jul 7 21:43:38 CEST 2005


On Thu, Jul 07, 2005 at 10:00:17AM +0200, Reimar Döffinger wrote:
> Hi,
> On Wed, Jul 06, 2005 at 12:29:40PM +0200, Joachim Jautz wrote:
> > Do I miss some important technical detail? If the distortion were
> > `SERIOUS', it would be audible, I assume? To me the result sounds
> > perfect.
> 
> I'd say in a lot of cases you can't here the difference between 96 and
> 128 kbps MP3s, nevertheless many people use even higher rates normally.
> But I can tell you that for a good audio CD the maximum value should be
> at 90%, so it probably isn't only the MP3 codecs that have problems with
> the maximum value (and it might be a good idea to have some "room" for
> postprocessing, like equalizer or dithering anyway).

Also it's very bad to normalize peak, since peak is NOT the perceived
"loudness" of the sound. Any normalization done should be based on
mean square intensity.

Rich




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