For adult programming, aim for 15–17 characters per second ; for children, aim for 12–15 CPS to ensure comfortable reading speeds.
A good guide for effective subtitling (often referred to as "CCCCC" in academic or technical shorthand like "Clear, Concise, Consistent, Correct, and Complete") follows standard industry practices for readability and synchronization. Core Technical Standards subtitle ccccc
A subtitle should stay on screen for a minimum of 1 second and a maximum of 7–8 seconds . Content & Formatting Best Practices Best Practices for Online Subtitling - EngageMedia For adult programming, aim for 15–17 characters per
Use a maximum of two lines of text at a time to prevent obscuring the visuals. For adult programming
Keep each line between 37–42 characters .