Mobile editing guide
A practical walkthrough for how to add ai voice in capcut mobile
How to add ai voice in capcut mobile depends on whether CapCut already has the voice style you need. Follow the built-in route for speed, or create an external voice track when you need more control before importing it.
Decide which case you are
Choose the route that matches your goal before opening the timeline. The right choice prevents duplicate audio layers and makes the final sync easier.
Path A: Use CapCut's built-in text-to-speech
This path is the shortest when the voice options in your version of CapCut fit the tone, language, and pacing of the video.
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1
Prepare the script
Open the mobile project and write the narration as short, readable lines. Remove directions that should not be spoken, such as scene notes or bracketed sound effects, then check names and numbers before generating the audio.
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2
Create the voice layer
Add or select the text layer that should become speech, then choose CapCut's text-to-speech option. Pick the available voice that best matches the project, preview the result, and regenerate it if the pronunciation or rhythm sounds wrong.
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3
Place and trim the result
Keep the generated audio aligned with the visual section it explains. Split or trim the clip around pauses, lower competing music, and move the text or footage slightly if the voice begins before the intended action.
Path B: Bring in an external AI voice
Use this route when you need a voice style, delivery, or revision process that is easier to manage outside the mobile editor. Generate only the approved script, then import the finished audio into the project.
- Built-in CapCut route
- External voice route
Best starting point
Built-in CapCut route
A short script that can be generated directly from a text layer.
External voice route
A prepared script requiring a specific delivery or a separate review step.
Voice selection
Built-in CapCut route
Limited to the voices and controls available in the current CapCut version.
External voice route
Selected before import in the voice tool that creates the audio.
File handoff
Built-in CapCut route
The speech layer is created inside the project timeline.
External voice route
The rendered audio must be saved or handed off, then imported into CapCut.
Revision method
Built-in CapCut route
Edit the text layer and generate the speech again.
External voice route
Revise the script or voice settings, create a replacement file, and swap the old track.
Timing control
Built-in CapCut route
Adjust placement, splits, and pauses after generation in the timeline.
External voice route
Shape the delivery before import, then fine-tune its position in the timeline.
Useful for
Built-in CapCut route
Fast explainers, captions, drafts, and videos that need a straightforward narration.
External voice route
Brand-led videos, character delivery, announcements, or projects needing a reviewed source track.
Main risk
Built-in CapCut route
A pronunciation or pacing issue may only become obvious after it is placed over the edit.
External voice route
An incorrect file, sample rate, or script version can create extra replacement work.
Final check
Before exporting, use a simple pass that checks the voice as part of the whole edit rather than judging the audio in isolation.
- Choose built-in generation or an imported voice track before editing deeply.
- 2 paths
- Review wording, synchronization, and the balance between voice and background audio.
- 3 checks
- Keep one approved narration track active for each spoken section to avoid doubled audio.
- 1 voice layer
Before: script only
After: voice aligned
Turn your script into a usable voice track
If the built-in option is not the right fit, prepare a concise script, create the voiceover, and bring the approved result into CapCut mobile. Listen once with the music muted and once with the full mix so timing and clarity are both checked before you publish.
Create a voiceover- Start with the exact lines you want spoken
- Keep one approved version in the timeline
- Review pronunciation, pauses, and music balance
Tutorial FAQ
Yes, when your version of CapCut includes its text-to-speech feature, you can turn a text layer into spoken audio inside the mobile project. The exact menu name and available voices can vary by app version, so look for the text-to-speech option after selecting the text layer.
Create the voice track from the approved script, save it in an audio format that your mobile workflow can import, and add it through CapCut's audio controls. Place it under the matching footage, then trim or split the clip so the narration follows the edit.
The audio may not have finished importing, may be stored in a location CapCut cannot access, or may be hidden beneath another track. Confirm that the file is available on the device, reopen the import picker, and check the timeline at the point where the voice should begin.
Use short sentences, clear punctuation, and names written in a way the voice tool can pronounce. After adding the track, adjust pauses and volume, reduce competing music, and preview the complete sequence rather than judging only the isolated voice.
You can move, trim, split, and adjust the imported audio in the timeline. If the wording or delivery is wrong, it is usually cleaner to revise the source script and replace the voice clip than to force a poor recording to fit the edit.