How to Add an AI Voiceover in CapCut for TikTok and Reels
To add an AI voiceover to a CapCut video, create the audio in Narrator's Voice, save it as an MP3, and import it into your video project. Then line up the visuals with the narration, adjust the volume, and watch the finished video before publishing.
This workflow works for TikTok, Reels, and Shorts. Button names may vary between editor versions, but the steps stay much the same: prepare the script, generate the audio, and build the video around the narration.
Write a script that sounds natural aloud
Write for someone who will listen. Keep sentences short, stick to one idea at a time, and use words you would say in conversation. A direct opening helps viewers understand the topic in the first few seconds.
Read the script aloud before generating the audio. If you stumble over a sentence, simplify it. Spell out numbers, abbreviations, and foreign names when the voice does not pronounce them clearly.
Estimate the narration length, too. A comfortable pace is around 150 words per minute, though the voice and pauses affect the final timing. For a short video, generate a sample before you finish the script.
Generate the MP3 and bring it into your editor
In Narrator's Voice, choose a voice, type or paste your script, and generate the audio. Listen to the full result and adjust the text if a word sounds wrong or a pause feels too long. When it is ready, save it as an MP3 or share it with another app.
Open your video project in CapCut and import the audio file. Place the narration on the timeline and arrange the scenes so each image matches what is being said. If the video already has ambient sound, make sure it does not compete with the voice.
Sync the voice, visuals, and music
Use natural pauses in the script to change scenes or highlight a detail. If the narration moves faster than the visuals, shorten the script or extend the shots. Avoid speeding up the voice just to fit a long script into a short video.
Music and sound effects can set the mood, but keep the narration easy to hear. Play the video once with headphones and once through your phone's speaker. A mix that sounds balanced in a quiet room may be hard to hear on a phone.
Review the video before publishing
Check names, pronunciation, audio cuts at the beginning and end, and timing against the visuals. If you add captions, review them separately so they communicate the same information as the narration.
Use images, footage, and music you have permission to publish. Social platforms may change their features and rules, so check the current guidance for the kind of content you plan to post.
Create your voiceover on your phone
Narrator's Voice turns text into audio on Android, iPhone, and iPad. Choose from voices in more than 70 languages, add pauses, sound effects, and background music, then save the result as an MP3 for your video editor. Commercial use is allowed, including in monetized TikTok and YouTube videos.
For help with the script and the next editing steps:
- How to Write a Voiceover Script That Sounds Natural
- How to Create a Product Video Voiceover on Your Phone
- How to Convert Text to Speech (MP3) with a Realistic AI Voice
- How to Make Money with a Faceless YouTube Channel: 5 Ways
Frequently asked questions
How do I add an AI-generated voice to CapCut?
Generate the narration in Narrator's Voice, save or share it as an MP3, and import it into your CapCut project. Then line up the audio track with the scenes.
Can I generate the voice and edit the video on the same phone?
Yes. Generate the audio in Narrator's Voice, save or share the MP3, and open your project in the video editor you use on your phone.
How can I make the narration sound more natural?
Use short sentences, punctuation to guide the pacing, and listen to the full audio before publishing. A short sample makes it easier to compare voices and adjust the script.
Can I use the narration in a monetized video?
Commercial use of audio made with Narrator's Voice is allowed, including in monetized TikTok and YouTube videos. Also check the platform's current rules and the rights for any other material in your video.
CapCut is a trademark of its respective owner. This article is independent and is not affiliated with, endorsed by, or sponsored by the company.