A single subtitle should stay on screen for at least 1.5 seconds and no more than 7 seconds . 2. Line Length & Formatting
An open-source powerhouse for Windows that introduced auto-translation and wave-form visualizers to align text perfectly with audio spikes. subtitle 2014
Captions in the same language for the Deaf and Hard of Hearing (SDH), including sound effects like [wind howling] . A single subtitle should stay on screen for at least 1
The gold standard for "soft subs" and styling. It allowed for advanced formatting (fonts, colors, positions) using the Advanced Substation Alpha (.ass) format. subtitle 2014
Professionals often stick to 37–42 characters per line .