Hello, I'm working on a new Premiere Pro project and I have the following problem. I have two videos with two different resolutions and this gives the video with the lower resolution black bars. What can I do against it?
I'm guessing the lower resolution video is 4x3 aspect ratio and your higher resolution clip is 16x9.
The simplest solution is to 'scale' the 4x3 clip using the 'scale' control in the 'Effects Controls' panel -s o that you lose the black bars. The downside of this is you actually lose more resolution and part of the image. Use the 'position' control in the Effects Controls' panel to adjust the best framing once you filled the frame using 'scale'.
If you absolutely want to leave the 4x3 clip 'as is' you can also put it on any background you want i.e. another image, a colour or clip.
A popular approach is to duplicate the 4x3 clip in your sequence - select the clip, hold the 'alt' key (option on Mac) and drag the clip up in the sequence. You now have two identical clips. Now adjust scale on the lower clip in your sequence until it fills the frame, add a blur effect to the lower clip.
I just completed a 16x9 HD documentary with lots of historical war footage - all 4x3 and low resolution. Even though the quality was not great to start with, we still preferred the option of scaling the footage to lose the black frames.