component or S-video for 480i signal?

Archived from groups: alt.tv.tech.hdtv (More info?)

On Thu, 8 Apr 2004 01:08:52 -0700, Mark Crispin
<mrc@CAC.Washington.EDU> wrote:

>I am getting a new laser disc player; my existing LD player is nearly 17
>years old and new LD players probably aren't going to be available much
>longer. [I have a sizeable collection of Japanese LDs which are
>irreplacable on DVD.] I figure on retiring the old LD player, keeping it
>as a standby since I doubt there's much resale value.
>
>The new player can also do DVDs, but according to the specifications it
>only has 480i output. The specs also say that it has component output as
>well as S-video output. Since my current LD player only has composite
>video, this is quite a step up; but I am wondering if it's worth it to use
>component output if it can only do 480i?
>
>What brings this issue to a head is that I have an available S-video input
>on my TV, whereas the component inputs are all in use.
>
>So my question to the group is, for *480i* signals, is component noticably
>better than S-video? Or is close enough in 480i that S-video is good
>enough?
>
>Remember, this is for playing LDs, not DVDs. [Wouldn't a good-quality LD
>outperform a DVD even though LD is analog? Then again, does component buy
>anything at all with an LD source?]
>
>If it had 480p capability this would be a no-brainer; it would replace the
>DVD player that occupies one of the component inputs. But it doesn't, and
>I *can* tell the difference between DVDs in 480p vs. 480i.
>
>-- Mark --

I bought a switch box for my setup since my digital HD cable box has
such limited output for sound. I need them for the S video , component
and to record to my TV capture card in my PC.

I found one that worked while I was browsing the ToysRUs
Playstation/video game section. Im sure they are sold everywhere
though - like Radio Shack etc.

Archived from groups: alt.tv.tech.hdtv (More info?)

Curmudgeon wrote:
> Knowing what TV you're putting it into would help (HD?). But
> assuming it is, then your TV will line double a 480i signal coming
> in via component. It may or may not do that on an S video
> feed...depends on the set.
> Only YOUR eyes will know for sure....so try both, then decide for
> yourself.
>
> "John@Smith.com" <xxxxspud@newscene.com> wrote in message
> news:j8u7709feca5j2hg3ura449fq467sqr85d@4ax.com...
>> On Thu, 8 Apr 2004 01:08:52 -0700, Mark Crispin
>> <mrc@CAC.Washington.EDU> wrote:
>>
>>> I am getting a new laser disc player; my existing LD player is
>>> nearly 17 years old and new LD players probably aren't going to be
>>> available much longer. [I have a sizeable collection of Japanese
>>> LDs which are irreplacable on DVD.] I figure on retiring the old LD
>>> player, keeping it as a standby since I doubt there's much resale
>>> value.
>>>
>>> The new player can also do DVDs, but according to the
>>> specifications it only has 480i output. The specs also say that it
>>> has component output as well as S-video output. Since my current
>>> LD player only has composite video, this is quite a step up; but I
>>> am wondering if it's worth it to use component output if it can
>>> only do 480i?
>>>
>>> What brings this issue to a head is that I have an available
>>> S-video input on my TV, whereas the component inputs are all in use.
>>>
>>> So my question to the group is, for *480i* signals, is component
>>> noticably better than S-video? Or is close enough in 480i that
>>> S-video is good enough?
>>>
>>> Remember, this is for playing LDs, not DVDs. [Wouldn't a
>>> good-quality LD outperform a DVD even though LD is analog? Then
>>> again, does component buy anything at all with an LD source?]
>>>
>>> If it had 480p capability this would be a no-brainer; it would
>>> replace the DVD player that occupies one of the component inputs.
>>> But it doesn't, and I *can* tell the difference between DVDs in
>>> 480p vs. 480i.
>>>
>>> -- Mark --
>>
>> I bought a switch box for my setup since my digital HD cable box has
>> such limited output for sound. I need them for the S video ,
>> component and to record to my TV capture card in my PC.
>>
>> I found one that worked while I was browsing the ToysRUs
>> Playstation/video game section. Im sure they are sold everywhere
>> though - like Radio Shack etc.

I've never seen a HD Ready set that shows SD interlaced signals. I
thought they all upconvert to 480p/540p. Maybe I'm just delusional...

--
David G.

Archived from groups: alt.tv.tech.hdtv (More info?)

On Thu, 8 Apr 2004 01:08:52 -0700, in article
<Pine.LNX.4.60.0404080046530.25499@shiva0.cac.washington.edu>, Mark
Crispin <mrc@CAC.Washington.EDU> wrote:

>So my question to the group is, for *480i* signals, is component noticably
>better than S-video? Or is close enough in 480i that S-video is good
>enough?

Laserdisc is stored as composite analog video. Component probably
doesn't even work on your player, and in any case wouldn't lead to any
inherent advantage, unlike digital video which is stored in the
component domain. Whether S-video is better or not vs. the composite
depends on the relative quality of the comb filter in the player & your
TV, just try it out for yourself.

>Remember, this is for playing LDs, not DVDs. [Wouldn't a good-quality LD
>outperform a DVD even though LD is analog? Then again, does component buy
>anything at all with an LD source?]

A good quality LD can outperform a poorly mastered DVD, but not the
better DVDs.
--
Stephen Tu
stephtu@surfbest.net

Archived from groups: alt.tv.tech.hdtv (More info?)

In article <2611b663.0404081415.256d38bb@posting.google.com>,
t_pascal@my-deja.com (T. Pascal) writes:
> Mark Crispin <mrc@CAC.Washington.EDU> wrote in message news:<Pine.LNX.4.60.0404080046530.25499@shiva0.cac.washington.edu>...
>> So my question to the group is, for *480i* signals, is component noticably
>> better than S-video? Or is close enough in 480i that S-video is good
>> enough?
>>
>>
> I doubt there is any difference at all at 480i (or even 480p for that
> matter). I have read that component video has higher bandwidth than
> S-video, but not a whole lot. A high quality S-video cable would
> probably be almost indistinguishable in the scenario you describe.
>
The biggest difference is that S-Video can provide (at max) approx
1.2MHz of chroma, and that is only if the NTSC encoding standards
are violated. In normal 4:2:2 or 4:2:0 video, we can easily get
2+MHz of chroma (more likely 3+MHz.)

Given a totally standard NTSC encoding for S-Video, the best chroma
is going to be somewhere between 500kHz and 1.2MHz (depending upon
color axis.) It is possible to modulate the 3.58MHz subcarrier
on S-Video with wider bandwidth, but such signals can often give
serious fits to normal chroma decoders.

John

Archived from groups: alt.tv.tech.hdtv (More info?)

Mark Crispin <mrc@CAC.Washington.EDU> wrote:

>I am getting a new laser disc player; my existing LD player is nearly 17
>years old and new LD players probably aren't going to be available much
>longer. [I have a sizeable collection of Japanese LDs which are
>irreplacable on DVD.] I figure on retiring the old LD player, keeping it
>as a standby since I doubt there's much resale value.
>
>The new player can also do DVDs, but according to the specifications it
>only has 480i output. The specs also say that it has component output as
>well as S-video output. Since my current LD player only has composite
>video, this is quite a step up; but I am wondering if it's worth it to use
>component output if it can only do 480i?
>
>What brings this issue to a head is that I have an available S-video input
>on my TV, whereas the component inputs are all in use.
>
>So my question to the group is, for *480i* signals, is component noticably
>better than S-video? Or is close enough in 480i that S-video is good
>enough?
>
>Remember, this is for playing LDs, not DVDs. [Wouldn't a good-quality LD
>outperform a DVD even though LD is analog? Then again, does component buy
>anything at all with an LD source?]
>
>If it had 480p capability this would be a no-brainer; it would replace the
>DVD player that occupies one of the component inputs. But it doesn't, and
>I *can* tell the difference between DVDs in 480p vs. 480i.
>
>-- Mark --
>
How about another thought: buy a good DVD Recorder -- with a chip
that can line-double progressive 3:2 pulldown 480i input -- and move
your Laser collection to DVD? Then, with component output, you can
get 480p from all of your lasers.

jdg

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