Adding AI Voice-Over to Your Video

Learn how to add professional narration to your videos using AI text-to-speech.

Written By Yunfei

Last updated 1 day ago

What is AI Voice-Over?

iArt includes built-in text-to-speech (TTS) that generates natural-sounding narration from your script. You can add voice-over to any clip to guide viewers through your content.

Adding Voice-Over

Step 1: Open Voice-Over Settings

Navigate to the voice-over panel in the editor.

Step 2: Choose a Voice

Browse the available voices and select one that fits your content. You can preview each voice before committing.

Step 3: Write Your Script

Enter the narration text for your clip. Write it as you'd want it spoken — complete sentences with natural pacing.

Tips for writing scripts:

  • Keep sentences short and clear

  • Use punctuation to control pacing (commas for pauses, periods for stops)

  • Read it aloud to check if it sounds natural

Step 4: Generate the Voice-Over

Click generate to create the audio. The TTS engine will produce the narration based on your script and selected voice.

Step 5: Preview with Animation

Play your clip to see the voice-over synced with your animation. The animation timing can be adjusted to match the narration pace.

Syncing Voice-Over with Animation

iArt can synchronize your animation timing with the voice-over duration. This ensures that visual elements appear and transition in time with the narration.

Tips

  • Match script length to video duration — A 10-second clip needs roughly 25–30 words of narration

  • Preview before exporting — Always listen to the full clip with voice-over before exporting

  • Keep it concise — Voice-over works best when it complements the visuals, not overwhelms them

Next Steps