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How do I select a language in Synthesia?

Learn how to select, change and preview a language, voice or accent in Synthesia.

Jess Diaz-Gomes avatar
Written by Jess Diaz-Gomes
Updated this week

To select a language:

  1. Type your text in your chosen language into the script box. Synthesia automatically detects the language.

  2. If you want to change the accent for the language, click on the voice selection bar.

  3. At the top of the selection, find the recommended voices and accents for each avatar.

  4. Scroll through the list or use the search bar to find more voices.


Can I use the same Avatar voice across multiple languages in one scene?

Yes, you can use the same avatar to speak in multiple languages within a single scene — but there are a few important limitations and steps to follow.

💡 Quick Tips 💡

  • Not all voices are available in all languages or dialects.
    For example, a voice like Ada/Helena – Cheerful may be available in Spanish (Mexico) but not in Spanish (Spain) or Spanish (United States).

  • You can’t switch voices mid-sentence.
    Language changes must happen between lines of text.


How to Add Multiple Languages in One Scene

  1. Start a new line for each language

    • Press Return/Enter to create a new line.

    • Paste or type the text in the second language.

  2. Check if the voice updates automatically

    • Synthesia will often auto-detect the language and switch to the appropriate voice if available.

  3. If the voice doesn’t update automatically:

    • Click on the speaker pill for the line that didn’t update.

    • On the right side of the speaker pill, click the voice selection dropdown.

    • At the top, click Back to all languages.

    • Search for the language of your text.

    • Select a voice that matches the language.

      • If the same voice isn’t available in that dialect, try another dialect.


Notes:

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