Dan Frakes wrote:
> "Dave Hooper" <[EMAIL PROTECTED]>:
> >>...the quality of a true digital copy of an original (prerecorded CD)
> >>to an ATRAC encoded Mini Disc is superior to that of MP3 .
> >
> >YOU ARE WRONG.
Dan the above statement was addressed to me (Larry). Don't you just hate it
when someone is wrong and keep insisting that "YOU ARE WRONG". For one thing
it makes that person just look that much more foolish.
>
> >
> >Everything that I record on my Sharp831, using a digital optical
> >connection to my Marantz CD6000OSE from a good quality CD source
> >sounds NOTICEABLY fake with clearly audible compression artifacts.
> >Yes, the quality of MP3 -encoded audio can vary greatly ... but good
> >quality MP3 audio DOES sound better than everything I personally
> >record on my Sharp831.
>
> No offense Dave (seriously), but you either aren't using your 831
> correctly, or you're not doing any sort of scientific comparison (i.e.
> you're listening on different equipment and/or there are other factors
> affecting the sound). The highest quality MP3 still doesn't sound as good
> as a digital copy of an MD.
>
> >The quality of ATRAC compression can vary greatly.
I don't know that that is a fact! Comparing equal versions (same chipset
should product consistent results.)
>
>
> Doing a blind comparison for friends (they don't know the source, they
> just listen to me switch the inputs) always results in MD coming out on
> top, regardless of whether or not the MP3's are being played through
> digital or analog outputs. My guess is that the difference would be at
> least as big, if not more so, if I were using an MD player with digital
> out, since the D/A converter on the receiver is probably better than the
> one on my MZ-R50.
To really do it right not only the listener but even the person selecting the
music must not know which is which. This is easy with drugs, but may prove
impossible with an MD VS an MP3.
The other thing that makes these A/B tests very difficult is that you need a
way to perfectly balance the volume. Speaking of Psychoacoustics, generally
speaking, the louder volume the better the perceived sound quality.
Larry
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