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Jéjé
Guest
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 Posted:
Mon Jan 17, 2005 1:55 am Post subject:
Standard cable TV on a Sharp LCD TV = bad quality... |
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Hi,
I have a Sharp LCD TV (30") which support HDTV.
When I look standard TV through standard cable (analog, not digital)
The quality is poor during TV playback, but not during advertising time ;-)
Specialy during moves.
I know my cable is not as good as expected.
Does the problem is linked to the LCD or by the conversion of the analog
signal to a digital signal?
If I use a standard HDTV TV (Like a Sony) I continue to have poor image
quality?
Thanks for your guide.
Jerome.
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Dave Oldridge
Guest
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| Posted:
Mon Jan 17, 2005 2:16 am Post subject:
Re: Standard cable TV on a Sharp LCD TV = bad quality... |
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"Jéjé" <willgart@BBBhotmailAAA.com> wrote in
news:YwAGd.2553$YI4.279674@wagner.videotron.net:
| Quote: | Hi,
I have a Sharp LCD TV (30") which support HDTV.
When I look standard TV through standard cable (analog, not digital)
The quality is poor during TV playback, but not during advertising
time ;-) Specialy during moves.
I know my cable is not as good as expected.
|
Most cable companies are using digital signals over at least part of the
path. Some satellite companies (my own included) have a tendency to
compress the bloody HEdoublehockeysticks out of some SD programming.
Fortunately mine spends most of this effort on shopping and weather
channels where resolution is not a high priority for me. But commercials
are what pay the freight and they are often recorded and produced in much
better quality than the program material itself.
| Quote: | Does the problem is linked to the LCD or by the conversion of the
analog signal to a digital signal?
If I use a standard HDTV TV (Like a Sony) I continue to have poor
image quality?
|
Probably. You may not NOTICE it so much on a cheap non-HD television,
but the fuzziness is still there if there is heavy compression somewhere
in the signal path.
--
Dave Oldridge+
ICQ 1800667
A false witness is worse than no witness at all. |
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Jéjé
Guest
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| Posted:
Mon Jan 17, 2005 2:32 am Post subject:
Re: Standard cable TV on a Sharp LCD TV = bad quality... |
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thanks.
What I found strange is the difference of the quality between programs.
For example, I have just watch a Star treck episode, the quality is bad,
just after there is a documentary and the quality is good.
If I get a digital decoder I'll get the same quality every time?
"Dave Oldridge" <doldridg@leavethisoutshaw.ca> wrote in message
news:Xns95E0872E187C3doldridgsprintca@24.71.223.159...
| Quote: | "Jéjé" <willgart@BBBhotmailAAA.com> wrote in
news:YwAGd.2553$YI4.279674@wagner.videotron.net:
Hi,
I have a Sharp LCD TV (30") which support HDTV.
When I look standard TV through standard cable (analog, not digital)
The quality is poor during TV playback, but not during advertising
time ;-) Specialy during moves.
I know my cable is not as good as expected.
Most cable companies are using digital signals over at least part of the
path. Some satellite companies (my own included) have a tendency to
compress the bloody HEdoublehockeysticks out of some SD programming.
Fortunately mine spends most of this effort on shopping and weather
channels where resolution is not a high priority for me. But commercials
are what pay the freight and they are often recorded and produced in much
better quality than the program material itself.
Does the problem is linked to the LCD or by the conversion of the
analog signal to a digital signal?
If I use a standard HDTV TV (Like a Sony) I continue to have poor
image quality?
Probably. You may not NOTICE it so much on a cheap non-HD television,
but the fuzziness is still there if there is heavy compression somewhere
in the signal path.
--
Dave Oldridge+
ICQ 1800667
A false witness is worse than no witness at all.
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curmudgeon
Guest
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| Posted:
Mon Jan 17, 2005 6:54 am Post subject:
Re: Standard cable TV on a Sharp LCD TV = bad quality... |
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Were both programs on the same channel?!?! If so, then the problem is with
the production of the two programs (a videotape documentary will always look
"shaper" and more "live" than a filmed series like Star Trek.
You need to learn more about how programs are produced; how signals are
transmitted via satellite; how compression affects video signals; what kind
of compression your cable system or sat provider are using....a whole lot
more than you know right now before you (or anyone else) can answer the
question.
"Jéjé" <willgart@BBBhotmailAAA.com> wrote in message
news:p3BGd.2656$YI4.302241@wagner.videotron.net...
| Quote: | thanks.
What I found strange is the difference of the quality between programs.
For example, I have just watch a Star treck episode, the quality is bad,
just after there is a documentary and the quality is good.
If I get a digital decoder I'll get the same quality every time? |
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Jéjé
Guest
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| Posted:
Mon Jan 17, 2005 8:26 am Post subject:
Re: Standard cable TV on a Sharp LCD TV = bad quality... |
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well...
The answer is: yes, on the same channel !
But does switching to a digital signal instead-of analog signal will
increase the quality?
I know the advertising around the numeric etc...
but does this improve standard program quality?
"curmudgeon" <curmudgeon@buzzoff.net> wrote in message
news:VSEGd.9054$SK6.8346@bignews3.bellsouth.net...
| Quote: | Were both programs on the same channel?!?! If so, then the problem is
with the production of the two programs (a videotape documentary will
always look "shaper" and more "live" than a filmed series like Star Trek.
You need to learn more about how programs are produced; how signals are
transmitted via satellite; how compression affects video signals; what
kind of compression your cable system or sat provider are using....a whole
lot more than you know right now before you (or anyone else) can answer
the question.
"Jéjé" <willgart@BBBhotmailAAA.com> wrote in message
news:p3BGd.2656$YI4.302241@wagner.videotron.net...
thanks.
What I found strange is the difference of the quality between programs.
For example, I have just watch a Star treck episode, the quality is bad,
just after there is a documentary and the quality is good.
If I get a digital decoder I'll get the same quality every time?
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Dave Oldridge
Guest
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| Posted:
Tue Jan 18, 2005 12:58 am Post subject:
Re: Standard cable TV on a Sharp LCD TV = bad quality... |
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"Jéjé" <willgart@BBBhotmailAAA.com> wrote in
news:p3BGd.2656$YI4.302241@wagner.videotron.net:
| Quote: | thanks.
What I found strange is the difference of the quality between
programs. For example, I have just watch a Star treck episode, the
quality is bad, just after there is a documentary and the quality is
good. If I get a digital decoder I'll get the same quality every time?
|
No, the problem is that different programs (and commercials) have
travelled different paths to get to you. The quality is usually function
of how much bandwidth the provider is able to provide for the signal, but
sometimes it's just poor original material that shows you its flaws on
the better resolution of your HDTV. Cable companies and Satellite
providers are strapped for bandwidth right now, as they are pressured to
carry hundreds of channels, so they squeeze the stuff into smaller
bandwidth at the expense of resolution. Of course they can't do that too
much with HDTV signals because it would really, really show on those.
I'm fortunate. A lot of the standard channels I watch are being carried
by my provider in near-DVD quality, which makes it easy to watch them
(especially since my satellite receiver outputs them in progressive scan
480p).
--
Dave Oldridge+
ICQ 1800667
A false witness is worse than no witness at all. |
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Dave Oldridge
Guest
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| Posted:
Tue Jan 18, 2005 1:00 am Post subject:
Re: Standard cable TV on a Sharp LCD TV = bad quality... |
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"Jéjé" <willgart@BBBhotmailAAA.com> wrote in
news:mvGGd.4552$YI4.530092@wagner.videotron.net:
| Quote: | well...
The answer is: yes, on the same channel !
But does switching to a digital signal instead-of analog signal will
increase the quality?
|
It will if the digital signal has been produced with more quality. HDTV
digital signals have superb quality. Standard definition digital signals
vary all the way from outright lousy to near-DVD quality.
Like I said, MOST of what you're watching has been digitized at some point.
--
Dave Oldridge+
ICQ 1800667
A false witness is worse than no witness at all. |
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