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Dot crawl/jittery oddity on Samsung hln617W



 
 
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  #1  
Old May 22nd 04, 08:38 AM
Neil Bradley
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Default Dot crawl/jittery oddity on Samsung hln617W

I went looking at HDTVs today (LCD and DLP based) and I've finally honed in
on the Samsung HLN617W. But today, at The Good Guys, I saw something that
really disturbed me.

In Star Trek Nemesis (yeah, I know, bad script, but great for judging dark
scenes) at the beginning of chapter 9 where it shows the Romulan senate, I
see this:

* Component input from DVD player, serious dot jittering throughout the
circle of the building
* SVideo input from DVD player, same thing
* Using the DVI input from an upconverter (costing $2K), the picture was
beautiful

It's very difficult for me to describe what I'm talking about, but it looked
like pixels just flatly being dithered to the wrong place in some of the
"busier" sections of the building as it moves (it's moving very, very
slowly), almost as bad as a DVD that has dropouts in it (or a crappy
satellite channel). It appears to me like the antialiasing algorithm in the
set does not do well with disparate images.

Question - do any Samsung HLN617W owners have this movie, and if so can you
see if yours does what I'm talking about? I couldn't find any adjustments on
the television to improve this.

It was so badly distracting that if this is a problem with the TV, I'll
probably skip it and get something else.

Thanks!

--Neil


  #2  
Old May 22nd 04, 05:25 PM
Hermango
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"Neil Bradley" wrotd:

I went looking at HDTVs today (LCD and DLP based) and I've finally honed in
on the Samsung HLN617W. But today, at The Good Guys, I saw something that
really disturbed me.

In Star Trek Nemesis (yeah, I know, bad script, but great for judging dark
scenes) at the beginning of chapter 9 where it shows the Romulan senate, I
see this:

* Component input from DVD player, serious dot jittering throughout the
circle of the building
* SVideo input from DVD player, same thing
* Using the DVI input from an upconverter (costing $2K), the picture was
beautiful

It's very difficult for me to describe what I'm talking about, but it looked
like pixels just flatly being dithered to the wrong place in some of the
"busier" sections of the building as it moves (it's moving very, very
slowly), almost as bad as a DVD that has dropouts in it (or a crappy
satellite channel). It appears to me like the antialiasing algorithm in the
set does not do well with disparate images.


I've got the HLN567W and it has that sort of problem too. I only see it
occasionally and I suspect it's a defect in the software.

Here's what the trick is. People bitch about different problems with
the Samsung DLP units but, in the overall scheme of things, they provide the
best, most detailed pictures of any set on the market other than the $10K and up
stuff. For the price there isn't anything that can touch them. FYI, I've also
got a computer with the MYHD120 HDTV card in it, connected into the DVI input
via the daughter card, and the thing looks gorgeous. I got the video card mode
tweaker program, the name of which escapes me right now, and set it so that it
does a 1:1 match on the pixels. You can stand right next to the screen and the
detail is still amazing.

Also, Samsung is coming out with the latest stuff in July (see link
below). It's got the new HD3 chip in it, and probably upgraded software. You
might want to wait for it if this bothers you.

Hermango

http://story.news.yahoo.com/news?tmp...pcworld/116231
  #3  
Old May 22nd 04, 06:15 PM
Brad Griffis
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"Neil Bradley" wrote in message
...

* Using the DVI input from an upconverter (costing $2K), the picture was
beautiful


You can get a Samsung HD931 DVD for under $300 (under $250 at some places).
This DVD player will upconvert DVDs to 720p or 1080i. The Samsung DLPs have
720p resolution so that's what you'd set it to. It has a DVI output so you
can have direct digital connection to the television. Here's a review of
it:

http://hometheater.about.com/cs/dvdl...vdh931full.htm

The only downside to the player seemed to be that for the upconversion it
automatically strectches 4:3 material to be 16:9 and you can't change it.
However, I'd assume most/all of the movies you'd watch would be widescreen
anyway.

Also, there are going to be some new Samsung DVD players coming out
(841/941) that will play DVD-Audio and SACD as well.

Brad


  #4  
Old May 22nd 04, 07:25 PM
David G.
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Brad Griffis wrote:
"Neil Bradley" wrote in message
...

* Using the DVI input from an upconverter (costing $2K), the picture
was beautiful


You can get a Samsung HD931 DVD for under $300 (under $250 at some
places). This DVD player will upconvert DVDs to 720p or 1080i. The
Samsung DLPs have 720p resolution so that's what you'd set it to. It
has a DVI output so you can have direct digital connection to the
television. Here's a review of it:

http://hometheater.about.com/cs/dvdl...vdh931full.htm

The only downside to the player seemed to be that for the
upconversion it automatically strectches 4:3 material to be 16:9 and
you can't change it. However, I'd assume most/all of the movies you'd
watch would be widescreen anyway.

Also, there are going to be some new Samsung DVD players coming out
(841/941) that will play DVD-Audio and SACD as well.

Brad


The other problem with the player is that the DCDi circuitry from
Faroujda only works on the DVI output. If you end up using component,
you won't get the benefits of the deinterlacing circuitry. Most testing
I've read places the Bravo D1 (the D2 and D3 should be out soon) as a
better DVD player for upconversion to 720p/1080i.

In any case, the problem the OP saw was likely due to either a
progressive scan signal from DVD player playing Star Trek doing a less
than adequate job deinterlacing the DVD. Or possibly the DVD player was
sending a 480i signal to the TV and the TV was doing a less than
adequate job deinterlacing the signal. If there are different
deinterlacing settings on the TV or DVD player, it's possible it was set
to the wrong one or was interpreting the flags on the DVD incorrectly
and going in and out of video mode instead staying in film mode.


--
David G.

 




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