Runtime at three paces
Measured, natural, and brisk delivery: so you know the range before recording.
Almost every first recording runs long, and the reason is arithmetic: writers read silently at 250 words per minute and narrators speak at about 150. A script that "reads fine" at four minutes is a six-minute recording. Timing the text before the session turns that discovery from a re-record into an edit.
The three paces bracket reality. Measured delivery, around 130 words per minute, suits safety-critical and compliance narration where nothing may be missed. Natural delivery, around 150, is the default for training and explainers. Brisk delivery, around 170, works for energetic marketing reads: and is the ceiling before comprehension drops.
The quality checks find filler phrases and sentences over 25 words. Long sentences can force a narrator to breathe in the middle of a clause, so split them before recording. Training narration often falls between reading grades 6 and 9. A much higher grade can indicate dense written prose.
Use the training script generator to revise instructional copy. Use the explainer script generator to revise product video copy.