Add voice over to video with your own narration
Add voice over to video using the BlitzCut workflow shown here for iPhone, iPad, and Mac. [1] Record your own explanation or import a supplied voice file, then align the narration with your product demo or screen recording. Free download with paid features. BlitzCut is also available on Android through Google Play.


Your screen recording shows the right actions, but viewers still need an explanation. A sentence that arrives after the click, or ends before the result appears, makes the demonstration harder to follow. Plan each line around something the viewer can see, and leave enough time for both the words and the action.
Bring your existing demo or screen recording into BlitzCut. Human voice-over recording is documented in the official release notes, and the listing confirms importing and layering your own audio. [1] For a lesson or founder video with on-camera speech, settle the main spoken edit through the transcript first. Then record the missing explanation or add the supplied narration and check it against the pictures on the timeline.
Everything you need, in one app
Human voice-over recording
Record the explanation in your own voice. The App Store version history confirms the recording feature. [1] Start with one short section and listen for a clear first word, consistent delivery, and an ending that leaves the viewer time to see the result.
Import a supplied narration file
Bring in an audio take recorded earlier or supplied by your presenter. Audio import and layering are documented in the official listing. [1] Listen to the file first and note which sentence belongs with each part of the demonstration.
Timeline timing against the picture
Review the narration alongside the video sequence. Choose a visible cue, such as a button press or the reveal of a product detail, and check when the corresponding words begin. Recheck later cues whenever you change the earlier video cuts.
Transcript editing for the presenter footage
Find an unwanted restart or passage in the supplied talking-head recording through its transcript. Review the shortened speaking edit before adding your narration. The transcript screenshot shows selected words and the Correct and Delete controls.
Adjustable silence removal before narration
Tighten unwanted gaps in the original spoken footage and review the result before aligning the extra voice track. Keep pauses that give a lesson time to land or let viewers follow an on-screen action. Check timing again if you shorten the sequence later.
Captions and supporting images
Finish with reviewed captions and a relevant product image or screenshot where it helps the explanation. Check names, numbers, and product terms against the final audio, then verify that the visuals and text still appear at the right moment.
How it works
Three steps from raw footage to finished video.
Arrange the footage and plan the narration
Import your product demo or screen recording. Choose the actions you want to explain and write a short line for each one. If the video includes a presenter, finish the main speaking cuts first. Read the lines aloud while watching to check that they fit comfortably.
Record your voice or import a supplied take
Use BlitzCut's voice-over recording feature, or import an existing narration file. [1] Make a short test in a quiet room and listen before recording the full explanation. Work in short sections so each take has a clear action or result to accompany.
Align each line and review the saved video
Time the narration to the relevant click, product detail, or result. Replay the lead-in and ending of each section with the original sound. If a line feels rushed, shorten the wording or allow more picture time. Export, then watch and listen to the saved video from start to finish.

Actual BlitzCut Mac screenshot: Record and Sounds sit below the timeline. The purple lane is labeled Voice and TTS clips appear here and is empty in this example, as is the music lane. The green waveforms show the video's original audio.
Add voice over to video at the moment it helps
- Use your own delivery or a narration file supplied for the project
- Give each spoken line a visible action to explain
- Settle the presenter edit before timing the added narration
- Review words, pictures, and original sound together

Built for creators like you
Product demos with a founder's explanation
Pair your existing product footage with the founder's own voice. Give the problem, the demonstration, and the result a short line each. Let the audience see the detail being described before moving to the next point.
Screen recordings for lessons and onboarding
Add spoken instructions to a supplied screen capture. Match each explanation to the menu, click, or completed action, and leave viewers time to follow it. Read the script against the footage before recording a long take.
UGC demonstrations with a supplied voice take
Combine the creator's approved narration with their demonstration footage. Keep the wording consistent with the actual product use and show the relevant action while it is described. Review the voice and any original speech together before sharing.
Works great with
View all features →Timeline Editing
Multi-clip timeline with drag, speed, and split.
Text-Based Editing
Edit your video by editing the transcript.
Product Demo Video Maker
Edit a recorded walkthrough with product inserts and captions.
UGC Video Editor
Edit real creator footage into captioned UGC and ad variants.
Text to Speech
Generate realistic AI voiceovers from text.
Guides and free tools
- BlitzCut for Android on Google Play
- [1] Official BlitzCut App Store listing and release notes: human voice-over recording, audio imports, devices, and purchases
- [2] Apple Support: make a recording in Voice Memos on iPhone
- How to do a voice over on a video: recording, timing, and review
- How to record audio on iPhone and save your narration
- Estimate narration length with the script duration calculator
- Plan the pictures for each narration line with the shot list template
Download and choose your plan
On Apple devices, free to download with paid features and in-app purchases. Check the App Store and the app's purchase screen for current editing and export access, available offers, and regional pricing. [1] For Android purchase options, check Google Play and the Android app.
Frequently asked questions
- Is BlitzCut available on Android?
- Yes. BlitzCut is built for talking-head videos and is now available on Android through Google Play. The workflows and screenshots on this page describe the Apple apps. Check Google Play and the Android app for current Android features, device compatibility, and purchase options.
- How do I add voice over to video in BlitzCut?
- Import your existing video and arrange the sequence. Record your narration in BlitzCut or import a supplied audio file, then align each line with the action it explains. [1] Replay the section with the picture and original sound, check the beginning and ending, and review the saved video after export.
- Can I record the narration on my iPhone first?
- Yes. Apple's Voice Memos app lets you record, stop, and review a take on iPhone. [2] Follow the linked recording guide to save your chosen narration, then import the supplied audio into your video project. [1] Record a short test first and keep the speaker's distance consistent between takes.
- How do I match my narration to a screen recording?
- Use visible actions as cues: opening a menu, pressing a button, or revealing the result. Write one short line for each cue and read it while watching the footage. Align the recorded lines on the timeline and replay the transitions. Rewrite a line that only fits when rushed, and recheck timing after changing earlier cuts.
- Can I keep the video's original sound with the voice-over?
- BlitzCut supports adding your own audio alongside video. [1] Keep original sounds when they help explain the demonstration, then listen to the complete section. If the original footage also has speech, decide which voice should carry that moment so the viewer can follow a single explanation.
- Is this the same workflow as AI text-to-speech?
- This workflow uses a human recording: your own narration or an audio file supplied for the project. Text-to-speech starts with a written script and generates spoken audio; see the separate text-to-speech feature in the related pages. For either approach, plan the words around the pictures and listen to the finished timing.
- Is BlitzCut free, and which devices can I use?
- BlitzCut is an installed app for Android, iPhone, iPad, and Mac. The Apple apps shown here are free to download with paid features and in-app purchases. [1] Check the App Store compatibility section and the Apple app's purchase screen for current editing and export access, offers, and regional pricing. For Android compatibility, features, and purchase options, check Google Play and the Android app.
Give your demonstration a voice people can follow
Bring your existing video and your own narration. Match each line to the action, review the complete explanation, and share the finished edit. Free download with paid features on iPhone, iPad, and Mac.
On Apple devices, free to download with paid features and in-app purchases. Check the App Store and the app's purchase screen for current editing and export access, available offers, and regional pricing. [1] For Android purchase options, check Google Play and the Android app.