How to Create Multilingual AI Voiceovers and Clone a Voice

Updated November 1, 2026

A clear voiceover starts with a short script, a suitable voice, and timing that matches your video. Use AI text to speech to turn the script into audio, or clone a voice from a short sample when you have the speaker’s permission.

Prepare a script and voice sample

Write for the listener, not the screen. Use short sentences, spell out abbreviations when they might be misread, and add punctuation where a speaker should pause. As a starting point, allow about 65–75 words for a 30-second voiceover, then adjust for the language and delivery speed.

For multilingual videos, translate the meaning rather than matching every word. Read each version aloud or have a fluent speaker review it. Names, product terms, and numbers deserve a separate pronunciation check.

If you want to clone a voice, record a short, clean sample of the person speaking naturally. Use a quiet room, one speaker, and consistent microphone distance; avoid music, echo, and background conversations. Only use your own voice or a sample from someone who has explicitly agreed to its use.

How to use an AI voice cloner and text to speech

1. Open Oranzy Audio and sign up for 100 bonus tokens. Choose text-to-speech voice generation, then paste a short section of your script.
2. Select a voice from the catalog that fits the audience and language. For a cloned voice, provide your permitted short voice sample using the voice-cloning workflow instead. Check that the selected voice works well in the language you need.
3. Add punctuation, emphasis, and pauses where needed. Generate a short test and listen for mispronounced names, awkward breaks, and an unsuitable speaking pace. Revise the text or pronunciation cues before generating the full script.
4. Generate the remaining sections, save the audio, and place it on your video editor’s timeline. Align key phrases with cuts, product demonstrations, and on-screen text; adjust music levels so speech stays clear. Repeat the process for each language version.

For a long video, work in sections rather than generating the entire script at once. This makes it easier to replace one sentence without redoing the whole voiceover.

Match the voiceover to your video

A vertical 9:16 social clip often needs a quick opening and short sentences. For a 16:9 tutorial, leave space between instructions so viewers can follow the screen. In a 1:1 or 4:5 product ad, time the product name and main benefit to appear with the relevant visuals.

Keep the original script and each translated version labeled by language. Before publishing, check the final audio against the captions: translations may take longer to say, so subtitles and visual cuts may need new timing.

Common mistakes that waste generations

• Testing a full script first: Generate a few sentences to check the voice, language, and pronunciation before committing to longer sections.
• Using a noisy cloning sample: Re-record in a quiet place if the source contains multiple speakers, music, or heavy echo.
• Overloading sentences: Break up long lines and use punctuation to guide pauses. Avoid guessing at special pause syntax unless the tool provides it.
• Skipping local review: Ask a fluent speaker to check translations and pronunciation, especially for brand names and technical terms.
• Confusing voice cloning with voice changing: Text to speech creates speech from written text; voice changing typically transforms an existing recording. Choose the workflow that matches your source material.
• Cloning without consent: Get explicit permission from the speaker and disclose synthetic narration where appropriate. Do not use a cloned voice to impersonate or mislead.