A useful video starts before generation.

Name the viewer, the action and the evidence before choosing a voice or generating a scene.

Give each scene one communication job, while keeping exceptions and supporting evidence attached to the claim they qualify.

Use a spoken rehearsal and visual pauses; a word-count estimate alone cannot establish a usable running time.

Separate generation, corrections and exports, and use current account rates rather than assuming every finished minute costs the same.

Approve the script and visual evidence first; then plan corrections by the operation they require, not by an invented failure rate.

Use real evidence for real claims; reserve illustrative media for concepts it can represent without misleading the viewer.

Evaluate the actual names, numbers and tone in your script; a voice sample cannot prove performance across the whole project.

A clear original recording can be the right input; compare editing and permission work rather than assuming synthesized speech is always easier.

Rebuild the explanation for time-based viewing; slide import is a starting point, not a finished lesson.