Quick answer
To direct AI voice acting, write short performance notes in plain English right inside your script, the way you would brief an actor. Put a note before a line to set the overall feeling, such as [warm, unhurried, like explaining to a friend], and use narrower notes on single words that need a whisper or extra weight. Add sound cues like a small laugh only where a real speaker would make them. Then generate three or four takes, pick the best, and adjust one note at a time.
Key takeaways
- Describe the feeling and the situation, not just an emotion label like “happy”
- Keep each note short: four to ten words usually works better than a paragraph
- Use word-level notes sparingly, for one or two phrases per paragraph at most
- Place breaths, laughs and pauses exactly where you want them
- Always generate several takes, because AI voice results vary from run to run
- Check that your tool actually supports bracket notes, or it may read them aloud
📘 Main article: This guide supports AI Breakthroughs Everyone Missed: Drama 3, OmniHuman 2.0 and World Models. It turns the plain-English direction idea behind Fish Audio Drama 3 into a method you can use with your own scripts.
Most AI voiceovers sound fine but flat. The words are right, yet nobody would believe a person meant them.
This guide answers one question: how do you direct AI voice acting so it sounds like a real performance? It supports our main article, AI Breakthroughs Everyone Missed: Drama 3, OmniHuman 2.0 and World Models, based on Matt Wolfe’s video.
What does it mean to direct AI voice acting?
It means telling the voice how to say a line, not only what to say. Older tools gave you a drop-down of emotions. Newer models, such as Fish Audio’s Drama 3, read plain-English notes in square brackets and adjust the delivery to match.
Writing the script itself is a separate skill. If your words are stiff, start with How to Write Natural AI Voiceover Scripts, then add direction on top.
What do you need before you start?
- A finished script, read aloud once by you so you know where it should rise and fall
- A voice tool that supports inline direction (check its help pages for the exact bracket format)
- A clear idea of the listener and the moment: a cold ad, a course lesson, a customer apology
- Ten minutes to generate and compare several takes
⚠️ Warning: Not every voice tool understands bracket notes. Some will read “[whispering]” out loud. Test one short line first before you direct a whole script.
How do you write performance notes for an AI voice?
- Set the scene once. Add one note at the top that describes the speaker and situation, such as [friendly coach, calm, talking to one person].
- Mark the turning points. Add a note only where the feeling changes, for example from problem to solution.
- Direct single words sparingly. Use a narrow note for one key phrase that needs a whisper, a smile or extra weight.
- Place sound cues on purpose. A small laugh after a joke or a breath before a big claim, never both in one sentence.
- Generate three or four takes. Listen without reading the script and pick the one that sounds most natural.
- Change one note at a time. If a line is off, edit only that note and regenerate, so you learn what made the difference.
- Save your best notes. Keep a short library of directions that work for your brand voice and reuse them.
💡 Tip: Describe a situation rather than an emotion. [Telling a friend some good news they did not expect] usually works better than [excited].
What do good and weak notes look like?
| Weak note | Better note | Why it works |
|---|---|---|
| [happy] | [pleased, a small smile, not over the top] | Gives a level as well as a feeling |
| [sad] | [tired, trying to sound fine] | Adds the tension a real person would have |
| [sales voice] | [confident, calm, like a trusted shop owner] | Avoids the pushy advert tone |
| [pause] | [short breath before the price] | Places the pause with a reason |
| [whisper everything] | [whisper] only on “just between us” | Keeps the effect special |
Keep notes honest to your brand. A calm, clear delivery usually builds more trust than a dramatic one, especially for offers and prices.
Try it now: take a 30-second script you already use, add three notes, and compare the new take with the old one.
How do you handle several speakers?
Give each speaker a name, a voice and one line of character notes, then keep them consistent. Drama 3 and some other tools support several voices in one scene.
- Label every line with the speaker’s name in the same format
- Write a one-line character note for each speaker at the top, such as [Sam: sceptical customer, dry humour]
- Keep replies short, so the back-and-forth sounds natural
- Listen for voice drift in longer scenes and regenerate any line where a voice changes
This works well for UGC-style ad scripts, customer story videos and simple training role-plays.
What mistakes should you avoid?
- Adding a note to every line, which makes the voice sound restless
- Using notes to fix a weak script instead of rewriting it
- Stacking several sound cues close together
- Judging a voice on one take only
- Paying for API usage without checking the right model is selected, which Matt warns can happen with Drama 3
- Using a cloned or licensed voice without permission for that use
💡 Tip: Before you commit to one provider, run the same directed script through two or three tools. Our guide to testing a voice model for business has a simple checklist.
Frequently asked questions
Do all AI voice tools understand bracket notes?
No. Support varies, and some tools read the notes aloud. Check the tool’s documentation and test a single line first.
How long should a performance note be?
Usually four to ten words. Short, specific notes are easier for the model to follow.
How many takes should I generate?
Three or four is a good start. AI voice delivery changes between runs, so the best take is often not the first.
Can I direct a cloned version of my own voice?
Often yes, if your tool supports both cloning and inline direction. Only clone voices you own or have permission to use.
Is directed AI voice good enough for adverts?
For many short ads and explainers, yes, once you have picked a strong take. Listen on a phone speaker as well as headphones before publishing.
The bottom line
To direct AI voice acting, describe the situation in short plain-English notes, mark only the turning points, use word-level effects sparingly and always compare several takes. Save the notes that suit your brand so every new voiceover starts from a proven base. For the bigger picture on Drama 3 and other new tools, read AI Breakthroughs Everyone Missed: Drama 3, OmniHuman 2.0 and World Models.
Related posts
- How to Write Natural AI Voiceover Scripts
- Grok Voice 3.0: What Businesses Should Test Before Using It
- How to Write a UGC Ad Script for an AI Spokesperson Video
