After Render the Aspect Ratio is Wrong

[Ivan Myles]

How are you viewing the rendered file? Many media players do not recognize rectangular pixels. Import the file into Premiere Pro to verify. If the file looks bad in Premiere, please post a screen capture of the export settings.

[Seth Pepper]

The rendered version is in Premiere itself. I tried to upload a screenshot.

BEFORE:

AFTER:

[Ivan Myles]

What were the export settings? Please also post the Properties of the encoded file.

[Seth Pepper]

Source File:
My_OwnArizona.wmv
Type: QuickTime Movie
File Size: 23.6 MB
Image Size: 960 x 720
Frame Rate: 29.97
Source Audio Format: 48000 Hz – 16 bit – Stereo
Project Audio Format: 48000 Hz – 32 bit floating point – Stereo
Total Duration: 00:00:43:18
Average Data Rate: 552 KB / second
Pixel Aspect Ratio: 1.0

Sequence Settings:
Vid01
960 x 720
00;00;43;18, 29.97 fps
48000 Hz – Stereo

[Ivan Myles]

Thank you for posting the information.

[Seth Pepper] “Source File:
My_OwnArizona.wmv
Type: QuickTime Movie
Image Size: 960 x 720
Pixel Aspect Ratio: 1.0”

If this info is for the source file, use Interpret Footage to change the aspect ratio to 1.333. Also, instead of matching the sequence and source settings, set the sequence to 1280×720 with square pixels. Then export as 1280×720 with 1:1 square pixels.

If the info listed above is from the encoded file, please post a screen shot of the parameters used when exporting the file. Here is an example of what I mean, but your settings will be different:

ame-qt-h264-export.png

Please ignore the highlighting; it is from a different thread.

[Seth Pepper]

I followed your directions used Interpret Footage to change Source to 1.3333:

Type: QuickTime Movie
File Size: 23.6 MB
Image Size: 960 x 720
Frame Rate: 29.97
Source Audio Format: 48000 Hz – 16 bit – Stereo
Project Audio Format: 48000 Hz – 32 bit floating point – Stereo
Total Duration: 00:00:43:18
Average Data Rate: 552 KB / second
Pixel Aspect Ratio: 1.0 (1.3333)

…and the Sequence setting is:

Sequence 02
1280 x 720
00;00;43;18, 29.97 fps
48000 Hz – Stereo

…and the results were both good and bad. The good was that the sides didn’t pinch in automatically. The bad was that the picture is stretched:

[Ivan Myles]

It’s progress, at least. Was the clip scaled in the timeline? Fitted to the frame?

An alternative approach is returning the file to its default aspect ratio, creating a sequence at 960×720 (1.3333), and exporting out at 1280×720 (1.0000).

Otherwise, a work-around would be creating a 1280×720 (1.0000) sequence, inserting the 960×720 clip, disabling “Uniform Scaling” in the clip’s Motion Effects, and then changing the horizontal scale as required to fit the 1280×720 sequence.

[Seth Pepper]

Yes, it is progress. At least I don’t feel like I’m completely losing my mind. I didn’t know what I was doing wrong. I would bring the source file into Premiere and then to make sure that the Sequence was setup just right, I would drag the icon over the new sequence button and let it do it all automatic. So I thought if the machine was doing it, then there was no way of messing up. I guess I was wrong. I’ll try your workarounds and show you the results later tonight. Too bad we need work-arounds in such a cool piece of software — I was really loving on the 5.5 Premiere and making the switch from FCP, but now I’m not so sure if I have to jerry-rig everything.

[Tero Ahlfors]

What are your project preview settings? As in: what codec, pixel aspect ratio and resolution are your previews rendering to?