How to Create AI Voiceovers

AI voiceovers have made professional-sounding narration accessible to anyone with a script and a few minutes to spare — no studio, microphone, or voice actor required. Here's how to create one from start to finish.

Step 1: Write a clean script

Write your script the way you'd want it spoken, with natural sentence breaks. Avoid overly long sentences — if a sentence is hard to read aloud yourself, an AI voice will struggle with its pacing too.

Step 2: Match the voice to your project's tone

A product advertisement calls for a confident, upbeat voice, while a meditation app calls for something slow and soothing. Vocaline's library of 400+ voices across 70+ languages makes it easy to find a close match for almost any project.

Step 3: Generate a test clip first

Before committing to a full script, generate a short test with just the opening lines. This lets you confirm the voice, pacing, and pronunciation feel right before processing the entire script.

Step 4: Adjust speed, pitch, and phrasing

If a name or technical term is mispronounced, try spelling it phonetically in the script, or rephrasing the sentence slightly. Small wording changes often fix pronunciation issues more reliably than adjusting settings alone.

Step 5: Generate the full voiceover

Once you're happy with the test clip, paste in your full script and generate the complete voiceover. Vocaline handles long scripts automatically, splitting and reassembling audio behind the scenes so you get one continuous file.

Step 6: Export and sync with your video

Download the finished MP3 and bring it into your video editor. Align the voiceover with your visuals, add background music if needed, and your AI-voiced project is ready to publish.