A2 sends 1080i - High-Def Digest Forums
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Old 01-11-2009, 09:23 PM
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Default A2 sends 1080i

I have a backup A2, that I have never connected to my 1080P Kuro display, until recently. I have generally only used it on my 720P Panny. I think this question may answer itself, but I am asking for clarity: When the A2, which I know can only send out 1080i max, sends out the track to my display, will I get the same picture as I would if I had an A20 sending out the track. My Kuro does a fantastic job deinterlacing the 1080i picture, but the clarity I need, is will it be the same, as when an A20 sends out the track already in 1080P. It may be all mental, but the A20 picture seemed a little better than the A2 picture, or am I just crazy? I believe that whether the display is fed a 1080i, 1080P feed, it is displayed at 1080P regardless. Which would mean, my eyes are tricking me, or should I pickup another HD player that outputs at 1080P?
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Old 01-11-2009, 09:33 PM
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I have a Panasonic 1080p that deinterlaces 1080i properly (The Kuros should too) and the picture from my A2 and my A35 on it were in my estimation the same. Or rather too close to call. The one thing my tv can't do is emulate the framerate at 1080p/24 output. So I think the real question since you have a badass Kuro is how do you like the picture with and without the 72hz mode activated? Because that's one thing the A2 won't be able to give you. Versus the 1080p players that let you select the 24 frames output.

Sorry to answer a question with a question.
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Old 01-11-2009, 09:42 PM
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That is one aspect, I never thought of. Maybe the judder is playing tricks on my eyes. You have opened up another question...
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Old 01-11-2009, 09:50 PM
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I never understood the concept of 1080i HD DVD players when the source content is 1080p. How does that work?

As far as I've heard, anybody with a 1080p display will get the same picture from 1080p content whether it's coming out of a 1080i or 1080p player.
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Old 01-11-2009, 11:36 PM
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If your TV deinterlaces properly, you 'should' get the same picture. The only difference is if your TV accepts 24fps output (which only the A20 would do). However there are other force at work, namely the chip in the player. I've noticed a small difference in the Toshiba players over the the LG200, for example, and an even smaller difference between the XA2 and the A3. So if you see a tiny difference, then it's probably real.
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Old 01-11-2009, 11:39 PM
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They have different video processing chips too. A20 uses ABT.
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Old 01-12-2009, 08:15 AM
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Quote:
Originally Posted by Blacklac View Post
They have different video processing chips too. A20 uses ABT.
I don't think that matters for the purposes of this discussion regarding deinterlacing and taking 1080p>1080i>1080p. In any event, what chip does the HD-A2 use? I thought the HD-A2 used an Anchor Bay Technologies chip as well.

I am sure not convinced we want to use a player that only outputs 1080i/60Hz with a 1080p display. I only acquired HD DVD players that outputs 1080/24p for backups when the format died. I still use the HD-A1 with my 1080i CRT but nothing else.

Chris
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Old 01-12-2009, 10:18 AM
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The A20 picture might be a bit better if you're sending [email protected]
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Old 01-12-2009, 10:19 AM
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Quote:
Originally Posted by jcs913 View Post
I have a backup A2, that I have never connected to my 1080P Kuro display, until recently. I have generally only used it on my 720P Panny. I think this question may answer itself, but I am asking for clarity: When the A2, which I know can only send out 1080i max, sends out the track to my display, will I get the same picture as I would if I had an A20 sending out the track. My Kuro does a fantastic job deinterlacing the 1080i picture, but the clarity I need, is will it be the same, as when an A20 sends out the track already in 1080P. It may be all mental, but the A20 picture seemed a little better than the A2 picture, or am I just crazy? I believe that whether the display is fed a 1080i, 1080P feed, it is displayed at 1080P regardless. Which would mean, my eyes are tricking me, or should I pickup another HD player that outputs at 1080P?
Have the A2 output 1080i to your Kuro and set PureCinema to
Standard or OFF.

The Standard setting will employ a 2:3 pulldown and output
1080p/60hz.

The Advanced setting will extract the original 24 frames from
a film based 1080i signal to a display rate of 72fps.

The Kuro will do both correctly.

Obviously, the ideal scenario would be to have a player that
outputs 1080p/24 correctly and unmolested.

As far as what your eyes like, it depends if your used to telecine
judder(2:3 pulldown) or film judder(24hz).
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Old 01-12-2009, 10:38 AM
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Quote:
Originally Posted by chris gerhard View Post
I don't think that matters for the purposes of this discussion regarding deinterlacing and taking 1080p>1080i>1080p. In any event, what chip does the HD-A2 use? I thought the HD-A2 used an Anchor Bay Technologies chip as well.

I am sure not convinced we want to use a player that only outputs 1080i/60Hz with a 1080p display. I only acquired HD DVD players that outputs 1080/24p for backups when the format died. I still use the HD-A1 with my 1080i CRT but nothing else.

Chris
Actually it matters a great deal which video processing chip the HDTV has vs. the player. If the player has a better processor, then you'll probably see a difference. On the other hand, if your TV has a better processor, you'll get a better picture by setting your player to output 1080i and letting the TV deinterlace. So the main advantage (other than 24Hz output, which only matters on HDTVs that can accept a 24Hz signal) of having a 1080p player vs. 1080i is being able to choose where the deinterlacing is done.

http://hometheater.about.com/od/tele...80ivs1080p.htm
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