How many seconds a video clip should be for a spoken line, so the words are never rushed or dragged. Give it the spoken text (or a word_count) and it returns a suggested duration for four delivery energies: slow and dramatic, natural, upbeat, and super charismatic talking-with-your-hands. Fewer seconds is a faster more excited delivery; more seconds is slower and more dramatic. Deterministic, free, no charge. Use it whenever a user asks how long to make a clip for their narration or dialogue, or which duration to pick for a given energy.