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  • You know, back in the forties and fifties,

  • the original standard television had a 4 to 3 width to height ratio.

  • That shape was chosen to be a slight rectangle,

  • but still mostly square, thus having the maximal screen area for the given dimensions,

  • and that's still the ratio on many TVs and computer monitors in today's homes.

  • The problem is, hardly anybody today treats video content in a 4:3 ratio.

  • See, this whole problem started when people wanted to watch movies from the theater in the comfort of their own homes.

  • Movie screens are considerably larger than our home television.

  • More important, the screen is a completely different rectangle

  • and can't mathematically fit on our TV screens without manipulation.

  • A typical TV is one and a third times wider than it is tall.

  • Some movie screens could be up to three times as wide as it is tall.

  • So what're we gonna do to make it fit? Well, we have all kinds of options.

  • Well, we could squeeze and stretch and mangle everything on to the screen, to make it all fill up,

  • and everyone would look ridiculously thin and compressed.

  • The good news is the sound would be just fine.

  • Although I don't think people would be too happy about that option, particularly the actors in the movie.

  • We could just cut a chunk of the original movie like a cookie cutter and just see that frame of the movie.

  • The problem with that would be that people and objects would be speaking

  • from off the screen, or even worse, they might be cut in half.

  • Some movie editors use what's called the "pan and scan" technique

  • to allow the full height of the TV screen to be used,

  • but pick and choose what section of the original movie should be shown on your screen,

  • thus eliminating the annoying cutting of people.

  • Imagine that job, staring at a 4 to 3 hole watching movies all day,

  • deciding for everyone which piece of the screen is the most important part for people to see.

  • Now let's do a little quick math.

  • If we compare a major cinematic film produced on a 2.35 to 1 aspect frame with my standard 4 to 3 TV screen,

  • we find out that only 55% of the movie can actually fit on the screen at any one time.

  • Just over half!

  • You've seen the disclaimer at the beginning of the movie on TV or DVD that says,

  • "This film has been modified from its original format to fit on your TV screen."

  • Well, what it should say is, "We are only displaying 55% of the movie of our choosing."

  • Now for all the full-screen TV lovers, this is your dilemma:

  • do you want to see all the movie, or is 55% good enough? How about new TVs?

  • Around the start of the century, some widescreen TVs emerged in a 16 to 9, or 1.78 times wider than it is tall.

  • Well, this screen fits the movie a little better, but still only shows 75% of the original movie at one time.

  • Suppose someone made a TV for your living room that was actually 2.35 to 1 to show those full movies.

  • Well, the TV with the same height as the most current 50-inch TVs -

  • that TV would be close to six feet long.

  • And on top of that, you'd only use the full screen when you watched movies.

  • Most of the other content would have to be stretched, or have empty space on the sides of the screen.

  • Of course, there is one more option.

  • We can just shrink the movie screen proportionally, to fit the width of your home television.

  • Now, we can mathematically scale the original to fit exactly the width of the screen,

  • and this'll preserve the entire movie screen, but show the infamous black bars

  • along the top and bottom that so many television watchers abhor.

  • Of course, now you can argue that we're only using 75% of that screen,

  • and that is where the real question is:

  • "Do you want your full screen, or do you want to see the entire movie?"

  • Most likely, you just need a bigger TV.

You know, back in the forties and fifties,

字幕と単語

ワンタップで英和辞典検索 単語をクリックすると、意味が表示されます

A2 初級

TED-ED】画面の形が重要な理由 - Brian Gervase (【TED-Ed】Why the shape of your screen matters - Brian Gervase)

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    Kevin Tan に公開 2021 年 01 月 14 日
動画の中の単語