Is 1.37 aspect ratio actually 1.33 aspect ratio?

[Vivaldi]

0.4 is for sound, right?

So it is actually that 1.37 aspet ratio is actually 1.33 aspect ratio visually?

[WindAtMyBack]

Pretty sure sound has nothing to do with it. The aspect ratio is the ratio of the image itself. Audio is separate. The two are separate, then synchronized.

1.33 is just another way of stating a 4:3 aspect ratio. It's simple division.

The audio uses bandwidth, but does not affect aspect ratio.

[Vivaldi]

It was 1:33 in silent era and it became 1:37 in sound era

I download movies that say 1:37 on imdb but they are 1:33

[Vivaldi]

Movies shot on film are turned to digital in original aspect ratio.

When I divede pixels, the result is 1:33 instead of 1.37

[Vivaldi]

Another film turned up to be 1:37.

1480 Pixels / 1080 Pixels = 1.37

I guess you are right. But other movie was 1:33 instead of 1.37

[Vivaldi]

Maybe the original ratio of 1:37 was not kept in the other movie

[WindAtMyBack]

1480 x 1080 is a computer monitor ratio. I don't know if that was ever used for television.

One thing to consider is that the displayed pixels are not necessarily the same as the broadcast pixels. There are pixels outside the viewing are, which are not really meant to be seen. This is true of both the top and bottom of the screen, and the left and right of the screen. They don't try to fit the picture exactly in the screen, so they have a little extra in case it's not perfectly centered.

I think the old standards (like NTSC and PAL) allow for some variation in pixels. But I think officially it's still considered the same aspect ratio.

There is also blanking. In CRT televisions and monitors, the "gun" shoots a beam at the screen. It aims at one pixel at a time, then moves to the next. When it gets to the end of a line (on the right of the screen) it must travel back to the beginning of the next line. It must "blank" during this, otherwise you'd see a streak across the screen as it traveled from the right to the left. The is the "retrace".

Same when it moves from the bottom to the top, except it has to blank longer because it's further.

[princeofromance]

I am not a math major so I cannot help you with this.

[Vivaldi]

If 0.4 is for sound, it must mean that 1.37 is actually 1.33.

[Anonymous]

This question smells bad

[Vivaldi]

How can a question smell bad?