> > Seriously, David, once you've sampled at any particular resolution, you
> > cannot improve the resolution by ANY kind of magic handwaving, no matter
>how
> > expensive the box.
>I agree Simon, but if you spend lots of money on something which the
>marketing
>guys have convinced you will improve the sound, you'll make pretty damn
>sure
>you can hear the difference regardless of if there is any :-)
Have you guys ever heard of a line-quadrupler? It takes the 480I signal from
NTSC TV and upconverts it to 1050P...basically synthesizing HDTV out of
regular TV. Do the results look as good as "real" HDTV signal? No. Do the
results look significantly better than the original 480I? Yes.
Using this digital interplation, you can magnify the image from a DVD to
fill a 12 foot screen and get something that comes pretty close to 35mm
film.
You've accomplished this by using a black box that adds resolution to the
original video signal.
This is the same principle behind what the DTI PRO32 does for 16-bit audio.
If you have the following sample points in 16 bits:
**
**
**
the PRO32 would look at this and say "hey...this is supposed to look like
this:
*
*
*
*
*
*
The 16-bit resolution didn't give you enough vertical potentialities to
capture that slope, but with 20 bits it's no big deal. So the PRO32 moves
the bits around (in this case, it moves every even bit to the position
mid-way between each odd sample point) to try and better represent what a
"real" waveform would look like. It's like taking oversampling (which adds
new sample points of information between existing sample point) to the next
level by changing the position of the *original* sample-points.
It's science. And just like a scan-converter for video that makes the
low-res 480I signal coming out of a DVD player look near-HDTV on a
projection system, it does a good job of replicating a more realistic signal
than the source.
Want to come over some time with some double-blind listening to hear what an
improvement it makes? The tests are level matched (naturally) and all the
people who've succumbed to my test (non-audiophiles, I should add) can not
only hear the difference, but prefer the 20-bit output to the original 16.
BTW, I waited and bought my PRO32 used so I wouldn't have to spend $$$ on
high-end gear :)
-dave
______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com
-----------------------------------------------------------------
To stop getting this list send a message containing just the word
"unsubscribe" to [EMAIL PROTECTED]
