1. Export a VTT subtitle file from DaVinci Resolve

1. Select the sequence in your media tab.
2. In the menu select "File -> Export -> Subtitle."
3. Choose "Subtitle Files (*.vtt)" from the dropdown menu and save your file.

2. Use the "Subtitle Tool & Converter" to convert the VTT subtitle file into a SBV subtitle file

Open the free Subtitle Tool & Converter, select "VTT" and set "convert" to "SBV". Generate and download the file. If you have problems converting the file, you can contact the free support.