How to get an AI voiceover that sounds human

Viewers forgive simple visuals. They don’t forgive a voice that sounds like a robot reading a list. Most “robotic” narration is a script problem, not a voice problem.

Write short sentences

Text-to-speech voices sound best on sentences of 8 to 20 words. Long sentences with several clauses make any voice lose its rhythm. Split them.

Use punctuation as direction

A full stop is a pause. Use more of them.
A comma is a short breath.
A question mark lifts the end of a line. Use real questions to keep viewers listening.
Avoid brackets and slashes; voices read them badly.

Spell numbers and names the way they’re said

Write “twenty twenty-six”, not “2026”, if the voice reads it oddly. For names, try a phonetic spelling in the narration and keep the correct spelling in the captions.

Match the voice to the topic

A warm, slow voice suits history and stories. A brighter, quicker voice suits sport and tech. Zaga Studio lets you preview each voice on your own line before you commit, and you can describe the voice you want (“calm, deep, slightly slow”) to find a close match.

Try a conversation

Two voices talking can hold attention better than one narrator, especially for explainers and language content. Zaga’s conversation videos assign each line to a speaker, and each speaker can even use a different language, with captions.

Cloning a real person’s voice without permission is wrong, and in many places it is illegal. Zaga Studio only clones a voice with the consent of the person it belongs to.