Silly Aspect Ratio Question

Discussion in 'TiVo Series 1 - UK' started by Mark Bennett, Sep 6, 2007.

  1. Sep 6, 2007 #1 of 26
    Mark Bennett

    Mark Bennett New Member

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    Sep 17, 2001
    Farnborough,...

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    I have just bought my first widescreen TV :cool: , and have a question regarding aspect ratios...

    Up to now (on the 4:3 set), I have had the Sky box set to 4:3L - meaning 16:9 programmmes have the black bars top and bottom. 4:3 programmes filled the screen (of course). So everything in the correct A/R.

    I have also been archiving programmes to DVD using the well known method that can't be mentioned here. (Or can it? I thought I'd seen it mentioned recently!)

    My question therefore is, what do I set the Skybox to for the new 16:9 set, in order to get the corrrect A/Rs when watching/Recording/Archiving? I'm guessing 16:9 to match the new TV, or does that mess up the Tivo - TyT**ls part? If it's a 4:3 programme I want 4:3, if 16:9 then 16:9...

    Can't quite get my head around this! :eek:

    Swiching the TV between the correct A/R's is not an issue.


    Edited to clarify which TV I'm talking about in each bit! :eek:
     
  2. Sep 6, 2007 #2 of 26
    MikeMar

    MikeMar Go Pats

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    a 4:3 show should NOT fill the screen, you should have bars on the sides, a 16:9 SHOULD fill the entire screen
     
  3. Sep 6, 2007 #3 of 26
    Mark Bennett

    Mark Bennett New Member

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    Farnborough,...
    Sorry - still talking the old set!

    4:3 filled that, but obviously not the new one.

    I'll edit the original post :)
     
  4. Sep 6, 2007 #4 of 26
    cwaring

    cwaring VM Tivo User

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    Knaresboroug...
    You will need to set your Sky box to 14:9 in order to see things in the correct aspect ratio. There's no other way. However, this means that any programme shown recorded in this mode on a 4:3 TV will need the TV to be switched to W/S mode or everything will look tall and thin.
     
  5. Sep 6, 2007 #5 of 26
    RichardJH

    RichardJH New Member

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    Hanworth....

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    Carl didn't you mean 16:9
     
  6. Sep 6, 2007 #6 of 26
    Mark Bennett

    Mark Bennett New Member

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    Farnborough,...

    That's what I thought, just worried about the DVD's ;)
    I guess 4:3 programmes recorded to DVD will play ok - or will they be stretched? (or do I just explicitly set the TV to 4:3 mode to play 4:3 programmes?)
     
  7. Sep 6, 2007 #7 of 26
    Mark Bennett

    Mark Bennett New Member

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    Farnborough,...
    I feel a complete muppet asking this BTW...

    :rolleyes:
     
  8. Sep 6, 2007 #8 of 26
    RichardJH

    RichardJH New Member

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    Hanworth....
    I have 2 Tivos and a V+ box setup for 16:9 output to my Sony 32" WS CRT TV and it switches automatically between 4:3 and 16:9 according to STB output although most of the time when the programme isn't in 16:9 I leave the TV to select smart mode and allow it to get rid of the black bars. For most programmes any distortion is negligible.

    I have all networked via RF co-ax to upstairs TV (4:3) with conrol by TVlink Plus and even SWMBO has got the knack of using the aspect button on the 4:3 TV to get best results.

    As far as DVDs are concerned same thing but even with a WS TV you will often see black bars top and bottom because a lot of DVDs are in 2.35-1 format

    Don't worry we have been there, and some of the old Muppet Shows are only in 4:3 :D :D
     
  9. Sep 6, 2007 #9 of 26
    TCM2007

    TCM2007 New Member

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    The DVDs you create will be anamorphic 16:9, just like ones you buy. Depending on the DVD authoring software you use, you may have to manually switch the TV into forced 16:9 mode.

    Someone playing back on an old 4:3 TV will see a horzinatally compressed image.
     
  10. Sneals2000

    Sneals2000 New Member

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    If properly mastered the DVDs of 16:9 anamorphic material will replay either in 4:3 centre cut or 16:9 letterbox on a 4:3 TV if the DVD player is configured correctly.

    However if you have a 4:3 TV fed from the Tivo in another room, then that will suffer from 16:9 material being tall and thin if your display doesn't accept line 23 WSS which the Tivo generates internally.

    (One of the great things about Tivo is that even if your source doesn't generate L23 WSS - Sky boxes don't for example, and only use SCART pin 8 to signal aspect ratio - the output of the Tivo does include it - meaning widescreen switching happens even if a SCART cable isn't used to connect displays to the Tivo. L23 survives RF connection, and even VHS recording, though it is usually blanked by DVD recorders)
     
  11. cwaring

    cwaring VM Tivo User

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    Knaresboroug...
    Erm, yes. Sorry! :eek: Typo.

    Which is what I said, but you phrased it better :)
     
  12. Mark Bennett

    Mark Bennett New Member

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    Farnborough,...
    OK. So I think I'm worrying needlessly then

    (and I see it is as complicated as I thought!)

    Thanks everyone.

    I actually shortcut tyt**ls DVD authoring, I output from tytools in mpg format, and just pull that straight into pinnacle, add menus/edit etc, and there is the DVD.

    Simple :)

    Just didn't want squished DVD of the Italian GP this weekend :eek:
     
  13. Pugwash

    Pugwash New Member

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    Spalding'ish
    All this talk of authoring DVD's, and I usually find it easier to download stuff off t'internet than extraction.
     
  14. cwaring

    cwaring VM Tivo User

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    Knaresboroug...
    Yeah, well. One's illegal, the other's just immoral. Or something :D
     
  15. Cainam

    Cainam Tivo Evangelist

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    Chester-le-S...
    Off-topic, and probably best discussed in the other place but...

    I always found that when programmes have somehow 'fallen' off the Tivo onto my PC, the widescreen flag has not come with it.

    So after I have converted it into a .VOB file I use a program called DVDPatcher to set it to 16:9 (if it is a 16:9 program, obviously!)

    Then, when the IFO file is created, it sets the flag for you correctly. Or, when I convert the program into a format suitable to play on my Archos portable media player, it keeps the aspect ratio correct. Or when I pull it into Ulead (if I want a fancy menu), it also works.

    I know this is not strictly necessary, and you can could manually edit the IFO file once created to put it into widwescreen mode, or manually change TV (or PC, wherever you are watching the DVD) into displaying it in widescreen mode, but this method works for me.

    HTH!

    I always perfer to burn a DVD straight from the extracted VOB file, rather than pulling it into Ulead first, as it is a lot quicker as there is no re-encoding going on.
     
  16. Raisltin Majere

    Raisltin Majere The 96 YNWA

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    I don't understand this stuff either. I get black lines at the top and bottom of my screen, I thought this was normal. Is it not?
     
  17. OzSat

    OzSat Very Nice Moderator

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    This may help explain - http://channel2020.co.uk/talk16x9.php
     
  18. Raisltin Majere

    Raisltin Majere The 96 YNWA

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    Thanks, that makes sense. But has further confused me :)

    I get the black lines because of this "hybrid" ratio, yes?

    Why do I get bigger black lines when watching a DVD? If I understand the link correctly, DVD is 16:9 so should fill my screen, but that doesn't happen. I have scrolled through all the options on my tv, the only one that fills the screen makes everything looked stretched.

    What am I not doing correctly?
     
  19. RichardJH

    RichardJH New Member

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    Hanworth....
    As far as DVDs are concerned even with a WS 16:9 TV you will often see black bars top and bottom because a lot of DVDs are in 2.35-1 format
     
  20. RichardJH

    RichardJH New Member

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    Hanworth....
    This may help or confuse
    http://en.wikipedia.org/wiki/Aspect_ratio_(image)

    The aspect ratio of an image is its displayed width divided by its height (usually expressed as "x:y" or "x×y," with the joining colon or multiplication symbol articulated as the preposition "by" or sometimes "to").

    Currently, the most common motion picture film ratios in use are 1.85:1 and 2.39:1[1]. In video, the two standardized ratios are currently the traditional 4:3 (1.33:1), universal among standard definition video formats, and its modern 16:9 (1.78:1) successor, used in high-definition television and European digital television. Historically, many other aspect ratios no longer in general use have existed in both film and video. Conversion between formats with unequal ratios can be accomplished by either cropping the image to fit the receiving format's ratio or adding black bars (letterboxing or pillarboxing) to retain the original format's ratio. Film ratios tend to be formatted to end with ":1", while video ratios usually prefer to be denoted with whole numbers on both sides of the ratio
     

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