Before you begin: to access production-level settings, you must have adequate permission. You need to be either the production admin or account admin.
By using the Subtitle Editor, you create subtitles for your clips. The Subtitle Editor is automatically enabled and ready to use. If you would like to disable it, do so by unchecking the box as seen below.
We assume that you will want the Subtitle Editor to stay enabled. In that case, the below settings can be configured to suit your needs - for both horizontal and vertical videos. Note: you can read more in the section about Creating subtitles and specifically about vertical videos in the article How can I create subtitles for a vertical video?.
In the 'Regions' section, you define where your subtitle appears on the video frame. To change the region, take hold of the green box and move it to a desired spot. To enlarge the region, drag the corners to the desired size.
Note that modifying the regions will affect the subtitles for all the clips in your production! If you are working with both horizontal and vertical videos, we recommend making a separate production for your vertical videos.
Then there is the Automatic Subtitler Spotting Rules, where you can tweak among others the amount of characters on a subtitle line, the amount of lines shown, the time the subtitle is shown and much more.
Lastly, we have the Cell grid & font size, which is only a supported setting when using the EBU-TT-D export.
This setting defines a virtual 2D grid of cells over the video canvas. Cell Resolution X defines the number of columns in this grid and Cell Resolution Y defines the number of rows in this grid. As font size and line height are based on the cell height, Cell Resolution Y can be used to influence the subtitle font size. For a vertical video for example, we recommend changing the Y cell resolution from 15 to 27. More info can be found in the BBC styling guide.