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Topic: Anyone consuming HD or Blu-ray?
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Ron Funderburg
Jedi Master Film Handler
Posts: 814
From: Chickasha, Oklahoma, USA
Registered: Nov 2007
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posted 03-25-2008 05:30 PM
My bad the 24 fps is only on the blu-ray HD's not regular DVD's. Still it made all the changes to the system I didn't have to. Now I also it changed it to 1080i and upon review of the settings it say 1080p but my TV doesn't claim to be 1080p and I bought it in Oct. 2006 but still I'm sure it said 1080p.
Oh well it all looks great!
Bobbi it is very doubtful that any can hear the difference in different levels on a home system unless they put mega bucks in. Or it is the little Bose system that everyone knows is better, ya sure!
I have pretty high, end stuff all be it a few years old, and I can't hear a true difference between them.
Edit (like an idiot)
I actually can hear the difference between the CDs and Dolby Digital I can't hear any quality difference between the Dolby Digital and the DTS. I haven't actually tried the HD sound or whatever it is called yet! I'm not sure I can even do that with the receiver I have. I think that option is only though the HDMI cable but might be wrong.
Okay bobby I downloaded software Sunday for Sony's PS3 Blu-ray and I'm already out of date? DAMN!
Added to post 03/26/08
Just found this article that explains the whole interlace progressive thing!
"
Geoffrey Morrison Blog
1080i v. 1080p
Posted Mon Aug 7, 2006, 1:57 PM ET
There has been a lot of concern and confusion over the difference between 1080i and 1080p. This stems from the inability of many TVs to accept 1080p. To make matters worse, the help lines at many of the TV manufacturers (that means you, Sony), are telling people that their newly-bought 1080p displays are really 1080i. They are idiots, so let me say this in big bold print, as far as movies are concerned THERE IS NO DIFFERENCE BETWEEN 1080i AND 1080p. See, I did it in caps too, so it must be true. Let me explain (if your eyes glaze over, the short version is at the end).
For clarification, let me start by saying that there are essentially no 1080i TVs anymore. Unless you bought a CRT based TV, every modern TV is progressive scan (as in LCD, Plasma, LCOS, DLP). They are incapable of displaying a 1080i signal as 1080i. So what we’re talking about here mostly applies to people with 1080p native displays.
Movies and almost all TV shows are shot at 24 frames-per-second (either on film or on 24fps HD cameras). All TVs have a refresh rate of 60Hz. What this means is that the screen refreshes 60 times a second. In order to display something that is 24fps on something that is essentially 60fps, you need to make up, or create new frames. This is done using a method called 3:2 pulldown (or more accurately 2:3 pulldown). The first frame of film is doubled, the second frame of film is tripled, the third frame of film is doubled and so on, creating a 2,3,2,3,2,3,2 sequence. It basically looks like this: 1a,1b,2a,2b,2c,3a,3b,4a… Each number is the original film frame. This lovely piece of math allows the 24fps film to be converted to be displayed on 60Hz products (nearly every TV in the US, ever).
This can be done in a number of places. With DVDs, it was all done in the player. With HD DVD, it is done in the player to output 1080i. With Blu-ray, there are a few options. The first player, the Samsung, added the 3:2 to the signal, interlaced it, and then output that (1080i) or de-interlaced the same signal and output that (1080p). In this case, the only difference between 1080i and 1080p is where the de-interlacing is done. If you send 1080i, the TV de-interlaces it to 1080p. If you send your TV the 1080p signal, the player is de-interlacing the signal. As long as your TV is de-interlacing the 1080i correctly, then there is no difference. Check out this article for more info on that.
The next Blu-ray players (from Pioneer and the like) will have an additional option. They will be able to output the 1080p/24 from the disc directly. At first you may think that if your TV doesn't accept 1080p, you'll miss out on being able to see the "unmolested" 1080p/24 from the disc. Well even if your TV could accept the 1080p/24, your TV would still have to add the 3:2 pulldown itself (the TV is still 60Hz). So you're not seeing the 1080p/24 regardless.
The only exception to that rule is if you can change the refresh on the TV. Pioneer's plasmas can be set to refresh at 72 Hz. These will take the 1080p/24, and do a simple 3:3 pull down (repeating each frame 3 times).
Short Version
What this all means is this:
• When it comes to movies (as in HD DVD and Blu-ray) there will be no visible difference between the 1080i signal and the 1080p signal, as long as your TV correctly de-interlaces 1080i. So even if you could input 1080p, you wouldn't see a difference (because there is none).
• There is no additional or new information in a 1080p signal from movie based content.
• The only time you would see a difference is if you have native 1080p/60 content, which at this point would only come from a PC and maybe the PS3. 1080p/60 does have more information than 1080i/30, but unless you're a gamer you will probably never see native 1080p/60 content. It is incredibly unlikely that they will ever broadcast 1080p (too much bandwidth) or that 1080p/60 content will show up on discs (too much storage space and no one is using it to record/film).
So all of you people who bought 1080p displays only to be told by the companies that you had bought 1080i TVs, relax. The TV will convert everything to 1080p. Now if you bought a TV that doesn't de-interlace 1080i correctly, well, that's a whole other story. "
[ 03-26-2008, 12:10 PM: Message edited by: Ron Funderburg ]
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Scott Jentsch
Phenomenal Film Handler
Posts: 1061
From: New Berlin, WI, USA
Registered: Apr 2003
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posted 03-26-2008 04:39 PM
Ugh, here we go again with the misunderstandings.
1080i from a 1080p source does not lose any information. 1080i from a 1080i source does have "missing" information.
Some of the first Blu-ray players actually convert 1080p from the disc to 1080i and then to 1080p again. Some may still do that.
Whether the player does it or the TV, it doesn't matter, so long as whatever device is doing it, does it right. Some TV's don't.
Before getting too bent out of shape about 1080i vs. 1080p, you may want to investigate the actual data path the signal goes through before getting displayed. You may be surprised at how many times it's touched!
If I were going to be plunking down the money on a 1080p set, I'd be making sure that it did 1080i -> 1080p conversion nicely, and that it did native support for 1080p24. Manufacturers need to toss any less-able sets out of their product lines, and the easiest way for them to justify it is if such sets are gathering dust on store shelves.
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. Yes, it's true that a 60-Hz refresh rate TV will not show any difference between them... but that's like saying that a black-and-white signal is no different than color because a black-and-white TV doesn't show any difference between them.
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