I just bought a Pioneer CLD-D704 LD player from Kurtis. As another data
point for others, it's certainly a significant improvement over the Sony
MDP-850D I had previously; noise is considerably reduced, so medium
tones no longer look fuzzy.
I'm playing this through a Panasonic AE-700 projector, using composite,
or a basic Sony 29" CRT.
Now that the noise is down, I notice that there seems to be some minor
ghosting around sharp edges. I've been looking mainly at the Star Wars
NTSC "faces" LDs, e.g. in the titles. There is usually a single ghost
offset by 5-10 pixels. It appears on both CRT and projector.
Is this ghosting typical of Laserdisc? It's really quite minor but
noticeable on a high quality screen. It bothers me a little and I never
heard of this before.
I guess it could be a scaling/comb filter artefact?
I have bought a good quality, 1-metre composite cable from the player to
the projector, since my first suspicion was bad termination. But that
didn't make much if any difference.
I tried the same disc in my Sony MDP850D, and the behaviour is different
- more, smaller ghosts, but there is so much more noise with the Sony is
hard to judge.
The D705 also has a S-Video output, I tried that, same result.
--
aaronl at consultant dot com
For every expert, there is an equal and
opposite expert. - Arthur C. Clarke
Kurtis
"Aaron Lawrence" <aaro...@HEREconsultant.com> wrote in message
news:MPG.1cd4af836...@news.xtra.co.nz...
I wasn't blaming you or anything, that's why I didn't send you a mail ;)
When you say "a unit" do you mean of the 704, or just the better LD
players in general?
Any technical speculation as to where it's coming from? (Not with a view
to fixing it, just curious as I have an electronics bent).
HD/Blu-ray will be perfect right? Complete with 20 minute reprimands
about piracy that must be watched before the movie will play... :)
Thanks for the reply.
Aaron
Suddenly, Kurtis Bahr sprang forth and uttered these pithy words:
Kurtis
"Aaron Lawrence" <aaro...@HEREconsultant.com> wrote in message
news:MPG.1cd511a52...@news.xtra.co.nz...
OK, but ringing in what...
> On side one, the brim of hats smear right across the picture tube, on
> my analog Proscan tv set. On side two, which is CAV, the brims are
> intact with no smearing. Coincidence? I don't think so.
Hm, so interesting to try it with a CAV disc e.g. the last side of SW
trilogy I think...
I did notice occasional smearing but the ghosting/ringing seems much
more noticeable.
> But, even my HLD X9 will have "false outlines" on edges. The sharper
> the picture, the more these "ringing" lines can be seen.
This suggests there is some digital sharpening always turned on.
However, sharpening normally causes very close ringing, not well
separated like this.
I'm not surprised to see it on low-end LD players, since LD video must
be reasonably challenging stuff, but I would have thought higher-end
players would have sorted out such obvious things.
> This concept is explored in Video Essentials. The chapter that talks
> about sharpness discusses "false outlines" as being an artifact of
> excessive sharpness.
Yes, I watched that section :) I've turned all the sharpness settings
down to zero/neutral, including my 704. In any case the DNR on the 704
seems quite mild, and free of obvious bad side effects. Cleans up static
areas nicely without messing up edges.