Vizard Agent

How to fix a voiceover that sounds like a foreigner reading your language

Last updated 2026-10-10 · 2 min read

Tell Vizard Agent that the read sounds non-native rather than simply wrong. It works through the ladder in order: other voices for that language, then respellings for the specific words that break, then a search of the library for a genuinely native speaker. It transcribes each attempt back to check the pronunciation rather than trusting how it looks on paper.

What do you type into Vizard Agent?

Describe the impression rather than the technical fault. "The voice is wrong" gets you a different voice more or less at random; "it sounds like someone reading a language they don't speak" names what you want fixed. State the language precisely, too: "Portuguese" and "Brazilian Portuguese" are different requests to Vizard Agent.

Prompt

The narration sounds like it is being read by someone who does not speak the language: the words are right but the accent is not. Find a native speaker's voice for it, respell any acronyms phonetically if they still come out wrong, and let me hear each attempt.

What does Vizard Agent actually do?

A synthesised voice can say every word correctly and still sound like somebody who learned the language last year, because rhythm and vowels come from the voice, not the words. Respelling fixes single words; only a voice trained on native speech fixes the rhythm. Each attempt is transcribed back and compared with the script. In the session behind this article it:

When does this not work well?

Some languages and varieties simply have thin coverage. If there's no native voice for your language, the honest options are a human recording or accepting a near miss, and Vizard Agent will tell you which situation you're in rather than cycling through voices. Regional varieties are harder to find than the standard, and very technical vocabulary needs respelling regardless.

Common questions

Will respelling fix it? Only individual words. Vizard Agent uses it for acronyms and names.

How does it check pronunciation? Vizard Agent transcribes the generated audio back and compares it to the script.

Can I keep the same voice for a series? Yes. Vizard Agent records which one was chosen.