Side black bars on the exported video

Question

Hello, I edited a video using stock footage, which came in different aspect ratios. I'm guessing that's the source of the side black bars, but I don't know.

Here's my sequence and export settings:

SEQUENCE SETTINGS

EXPORT SETTINGS

The aspect ratios of the clips used are: 1280x720, 640x360, 320x240 and 1920x1080

Some clips I scaled to frame size, in others I used Motion effects, such as Scale, Scale Width and Scale Length. It appears that one can't change scale, scale width and length in the same clip, so if I were to remove the "scale to frame size" and crop the black bars with scaling I'd lose my effects. And anyway I like how the different aspect ratios work in my video.

So, how could I remove the side bars premiere creates? Thanks.

SAFEHARBOR11 · Accepted Answer

1440x1080 with 1.333 pixel aspect ratio is known as anamorphic video since the non-square pixel aspect stretches the video. That is most likely part of the issue you are running into.

What are the resolutions of the stock clips you are using? One would typically want to edit using square pixels (1.0 PAR) so that would for instance be 1920x1080 or 1280x720 (720p) video (EDIT: 1.0 PAR for computer/online viewing, but there are exceptions for other media like DV/DVD widescreen for instance).

So first things first, you may need to change the Sequence Settings, and then also, never export as anamorphic since video will be appear stretched or squished in most software players. You always want to export using square pixels.

Please let us know more about the sources you are working with, then we can suggest a workflow for best results.

Thanks

Jeff

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