1440 / 810 dimensions issue!

Question

Level 1

9 points

1440 / 810 dimensions issue!

Greetings,

I have a great couple of TOD files that I have converted into MPEG. By clicking on the file information on finder, I can find out that the dimensions are 1440/810. The problem I have is what to set in the sequence settings?
I tried setting the frame settings to 1440/810 (custom) but I got a big space on each side of the clips in that sequence. And what do I add to the Pixel Aspect ratio?

Do anyone have any solution of what to do and set as the sequence settings? Please appreciate that I am very new to playing around with compressed HD and my knowledge of settings like these are very low.

Faithfully,
// Felexion

Macbook 2.16 (duo core), 2GB RAM, 17inch screen, Mac OS X (10.4.11), final cut pro 6.0.2

Posted on Apr 23, 2008 2:15 PM

Reply

Answer 1

TomySky

Level 3

670 points

Apr 23, 2008 10:01 PM in response to Felexion

Felexion,

Welcome to the Forums! Unfortunately, I have never run across footage with those dimensions, so I have no personal experience with it. My suggestion, and this could be the worst idea in the world (correct me if I'm wrong, people, please!) would be to choose a Sequence setting that is close to your video size (1440). So, DVCPro HD, or something like that.

Perhaps take your footage into Compressor and use Advanced Format Conversion into the DVCPro HD format and see what happens.

Basically, if you want to edit with that footage, you're going to need to convert it, either by pulling it into a timeline and rendering it, or by Compressing it into an editable format first.

As for Pixel Aspect Ratio, it really depends on what the aspect ratio was when you created the original footage and what the ratio is now in the MPEG. Basically, to make Widescreen 16:9 footage, the pixels are stretched so that when the computer unstretches them, the image looks wider.

So, for starters, play around with the footage in a DVCPro HD timeline and see what it takes to make it look good. Then go from there.

Hope that helps!

~Luke

Reply

Answer 2

Felexion Author

Level 1

9 points

Apr 24, 2008 5:05 AM in response to TomySky

Thank you very much for the kind reply. I shall try this out and see how it turns out.

Any other guidence would be greatly appreciated.

Reply

Answer 3

Apr 24, 2008 1:03 PM in response to Felexion

That's not what pixel aspect ratio means at all.
All SD footage, whether widescreen or not, uses non-square pixels. What this actually means is that the distance between pixels is greater on the horizontal plane than it is on the vertical. Computers and HD footage use square pixels. For this reason the 720 non-square horizontal pixels of SD TV translate to 768 square pixels on a computer monitor (or in Phototshop etc).
As the footage you have is way above SD resolution I'd suggest using square pixels.

Report back.

Reply