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How to Write a Script for AI Voiceover

A great voiceover starts long before you press generate. It starts in the script. Write for the page and even the best voice sounds stiff. Write for the ear and a simple voice sounds alive.

Here is how to write a script for AI voiceover that performs.

Write for the ear, not the eye

Spoken language and written language are different instruments. The goal is a script that sounds right, not one that looks right on the page.

  • Say every line out loud as you write it.
  • If you stumble or run out of breath, cut or split the line.
  • Prefer the word you would actually say over the more formal one.
  • Use contractions. Written formality is one of the fastest ways to sound robotic.

A quick tell: if you would never say it to a friend across a table, do not write it for the voice.

Lead with the hook

You have a few seconds before someone decides to keep listening. Put the most interesting idea first. Do not warm up, do not clear your throat on the page. Open on the promise, the tension, or the surprise. Everything before the hook is a cost you are asking the listener to pay before you have earned it.

One idea per sentence

Long sentences with three clauses collapse when spoken. Break them. One thought, one sentence. Short sentences also give the voice room to breathe and hand you control over pacing. When every sentence is long, the read flattens into a drone.

Mark the beats

A script is not only words, it is timing. Note where the read should slow down, land, or lift. A simple method: put each beat on its own line, and leave a blank line where you want a pause. You are writing the rhythm as well as the words, and the voice will follow the shape you give it.

Write the direction next to the words

The words are only half the script. The other half is how they should feel. Next to each section, write the intention in plain language:

  • "Calm and reassuring here."
  • "Build energy into the reveal."
  • "Drop to something personal on the final line."

In Yecho that direction goes right beside the script, and the take performs to it. Writing the feeling as you write the words means you never lose the intention between draft and generation.

Write to time, not just to word count

If your voiceover has to fit a fifteen second clip or a thirty second ad, write to the clock. Say the draft out loud with a stopwatch. A useful rough guide is that a natural read runs around two to three words per second, so a fifteen second clip is only about forty words. Almost every first draft is too long for its slot.

Keep it tight

Read your draft back and cut ten to twenty percent. Remove filler, redundant adjectives, and any sentence that does not move the listener forward. Shorter scripts breathe better, cost less to generate, and hit harder. If a line does not earn its place, it is stealing time from one that would.

A simple template

For a thirty second read:

  • One line hook.
  • Two or three short lines that build the point.
  • One line that names the product or idea.
  • One line call to action.

Add a word of direction to each part and you have a script that is ready to perform, not just to read.

A short worked example

Here is that template filled in for a note taking app:

  • Hook: "You take notes everywhere. You find them nowhere." Direction: dry, knowing.
  • Build: "Every app, every scrap of paper, every good idea, all scattered." Direction: gathering pace.
  • Build: "What if they lived in one place, and actually found you back?" Direction: a lift, hopeful.
  • Name: "That is Notebook." Direction: simple, confident.
  • Call to action: "Start free today." Direction: warm, unhurried.

Read it out loud. It already has a shape, because the direction was written into it.

Read it out loud one more time

Before you generate, perform the whole thing yourself once. You will catch the stumbles, the run on lines, and the places that beg for a pause. Fix those and the AI voice has an easy job.

Write the words for the ear, and write the feeling right next to them.

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