Is 24fps at 1080i impossible? - Blu-ray Forum

Greenmatiz2 · 05-25-2007, 06:26 AM

Is it impossible to enjoy 1080i at 24fps?

blitz6speed · 05-25-2007, 06:28 AM

You will never enjoy 24p on a retail hardware disc playback device at 1080i.

You can do it with a HTPC tho.

Greenmatiz2 · 05-25-2007, 07:08 AM

Why is that?

So people are forced to get 1080p?

blitz6speed · 05-25-2007, 07:26 AM

Quote:

Originally Posted by Greenmatiz2

Why is that?

So people are forced to get 1080p?

As far as ATSC Specs are concerned, 1080p24 and 1080p24S are official specs. 1080i is just 30fps for the most part.

Greenmatiz2 · 05-25-2007, 09:21 AM

Does this make a difference as far as motion-judder is concerned?

Is motion-judder more or less apparent at 1080p 60hz compared to 1080i?

dialog_gvf · 05-25-2007, 02:28 PM

Quote:

Originally Posted by Greenmatiz2

Is it impossible to enjoy 1080i at 24fps?

The player and set would need to support 1080p/24sF (segmented frame), which means 1080i/48 timings, and the set displays at 48Hz.

50Hz European timings allow for no judder, but at the cost of speed up (which is staggeringly noticeable).

Gary

Josh · 05-25-2007, 05:10 PM

Quote:

Originally Posted by Greenmatiz2

Is it impossible to enjoy 1080i at 24fps?

If you did feed a progressive display with 1080i24, it would deinterlace to 1080p12. 12fps is not something even watchable. You would need a 1080i48 feed to be deinterlaced to 1080p24.

HDTV1080P · 05-25-2007, 11:12 PM

Currently the only displays on the market that have a 1080P/24 input are a few 720P displays and some 1080P displays. Absolutely no one makes a 480I, 480P, and 1080I display with a 1080P/24 input.

Greenmatiz2 · 05-25-2007, 11:24 PM

Ok.

For those people who have a 720 (768?) display, then, is it still somewhat possible to get 24fps, or an equivalent? How?

HDTV1080P · 05-26-2007, 04:56 AM

Quote:

Originally Posted by Greenmatiz2

Ok.

For those people who have a 720 (768?) display, then, is it still somewhat possible to get 24fps, or an equivalent? How?

Yes some Pioneer 720P Plasma’s have a 1080P/24 input. The Pioneer 720P plasma will down convert 1080P/24 material to 720P/24. Pioneer plasma’s with 1080P/24 inputs then refresh 24 frames to 72HZ to reduce judder. 35mm and 70mm film in the theater are refreshed at 48HZ or 72HZ.

eat_me_cool · 05-26-2007, 10:01 AM

Panasonic AE1000 is excellent for a 1080/24p.
Others know to work -
Sony Pearl
Panasonic AE900
Panasonic PT-AX100

Zinn · 05-26-2007, 07:08 PM

Quote:

Originally Posted by Greenmatiz2

Ok.

For those people who have a 720 (768?) display, then, is it still somewhat possible to get 24fps, or an equivalent? How?

Yes just look for the feature when looking for a tv, but if your tv today does not support it, then you will not be able to get it.

05-25-2007, 06:26 AM	#1
Greenmatiz2 Banned Member since:Apr 2007	Is 24fps at 1080i impossible? Is it impossible to enjoy 1080i at 24fps?

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05-25-2007, 06:28 AM	#2
blitz6speed Blu-ray Guru Member since:Oct 2006 Location:Anaheim Hills, CA Trading Score:8	You will never enjoy 24p on a retail hardware disc playback device at 1080i. You can do it with a HTPC tho.

05-25-2007, 07:08 AM	#3
Greenmatiz2 Banned Member since:Apr 2007	Why is that? So people are forced to get 1080p?

05-25-2007, 09:21 AM	#5
Greenmatiz2 Banned Member since:Apr 2007	Does this make a difference as far as motion-judder is concerned? Is motion-judder more or less apparent at 1080p 60hz compared to 1080i?

05-25-2007, 11:12 PM	#8
HDTV1080P Blu-ray Champion Top contributor Member since:Jan 2007 Blu-ray reviews: 205	Currently the only displays on the market that have a 1080P/24 input are a few 720P displays and some 1080P displays. Absolutely no one makes a 480I, 480P, and 1080I display with a 1080P/24 input.

05-25-2007, 11:24 PM	#9
Greenmatiz2 Banned Member since:Apr 2007	Ok. For those people who have a 720 (768?) display, then, is it still somewhat possible to get 24fps, or an equivalent? How?

05-26-2007, 10:01 AM	#11
eat_me_cool Active Member Member since:May 2007 Location:Battersea	Panasonic AE1000 is excellent for a 1080/24p. Others know to work - Sony Pearl Panasonic AE900 Panasonic PT-AX100

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