How to write a voiceover script an AI voice reads well

Write the words you want people to hear, in the way you want them spoken. Short sentences, clear pronunciation and a small test take usually do more for a voiceover than a page of directions.

Write for the ear

Lead with the point. A listener cannot skim a long sentence, so give each thought its own space. Read the script aloud once before generating it in Text to Speech.

  • Spoken copy only: keep camera notes, timestamps and editing directions in a separate document.
  • One thought at a time: split sentences that need a second breath.
  • Keep useful directions deliberate: supported feeling tags belong in brackets; ordinary production notes may be spoken aloud.
  • Choose a voice for the project: an energetic character and a calm narrator can make the same words feel very different.

Rewrite what looks good but sounds awkward

Before

Before proceeding, users who have not yet completed the initial configuration process should navigate to the settings panel.

After

Open Settings first. Finish the setup, then come back here.

Put the action before the condition.

Before

The offer ends on 03/04/27. Save 12–15% on the $1.2k bundle.

After

The offer ends on March fourth, twenty twenty-seven. Save twelve to fifteen percent on the twelve-hundred-dollar bundle.

Choose the intended date explicitly. Write out ambiguous numbers and money.

Before

Export CSV via API/CLI.

After

Export a C-S-V file through the A-P-I, or use the command line.

Decide which abbreviations should be read as letters.

Before

Includes: offline mode, 2FA, dark theme, PDF/DOCX.

After

It includes offline access, two-step sign-in, a dark theme, and PDF or Word exports.

Turn a visual list into a sentence a listener can follow.

Keep a pronunciation note

Text normalization is available in Settings for numbers and symbols. Check the actual output rather than assuming it resolves every case.

Text changes worth testing
ProblemTryExample
Name unfamiliar to the voiceA phonetic spellingSaoirse → Seer-sha
An ambiguous wordClearer context or a different wordwind the cable → coil the cable
A measurementWords rather than symbols3.5 kg → three and a half kilos
An abbreviationLetters separated or the full phraseETA → estimated arrival time

Estimate the length, then measure it

At an illustrative pace of 150 words per minute, 30 seconds holds about 75 words. Real voices, pauses and delivery vary; use these figures to draft, then time the generated take.

  • Leave breathing room for a title, demonstration or closing image.
  • If the clip runs long, cut repeated ideas before raising Speed.
  • Use punctuation for natural phrasing; unsupported pause markup can become unwanted speech.
  • Use feeling tags sparingly when the line needs a specific mood.
Drafting estimates at 150 words per minute
TargetStarting word count
15 secondsAbout 38 words
30 secondsAbout 75 words
60 secondsAbout 150 words
3 minutesAbout 450 words

Generate sections you can repair

Text to Speech accepts up to 5,000 characters per generation, counting spaces, punctuation and tags. For a long project, use complete scenes or paragraphs that fit within that limit.

Check the credit cost before Generate. If one sentence fails, revise that section instead of rerunning the entire project. New accounts receive 50 free credits once; pricing explains Creator and monthly credit resets.

A simple production sheet
Scene / section:
Spoken script:
Voice:
Speed:
Feeling tags:
Special pronunciations:
Approved file:
Target duration / actual duration:

Review it where people will hear it

Listen on headphones for small glitches, then a phone speaker for clarity. Download the approved audio and assemble the project in your own editor. MorningAgent creates the voiceover; it does not edit or publish your video.

  • Every word is present, with no unintended production notes.
  • Names, dates and amounts are correct.
  • The voice and delivery fit the intended audience.
  • The clip has enough space around the opening and ending.
  • Adjacent sections use matching voice and settings.
  • The approved audio, script and pronunciation notes are saved together.

Frequently asked questions

How many words fit in a 30-second voiceover?

About 75 at 150 words per minute, before extra pauses. Time your actual take and shorten the script if it feels crowded.

How do I fix a mispronounced name?

Try a phonetic spelling in a short test sentence, then keep the working spelling in your production notes. Captions should keep the correct written name.

Should I use digits or words?

Write out dates, prices and abbreviations whenever the intended reading is ambiguous. Text normalization can help, but important details still need a listening check.

Do spaces and tags count toward the limit?

Yes. The 5,000-character Text to Speech limit includes spaces, punctuation and feeling tags.

Make something worth hearing.

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