AI Video Editor
Once your script and voiceover are generated, the video editor brings your footage, narration, and captions together on a timeline. Select a clip to change its properties, preview your edits, and check that they are saved before exporting.
Editor overview
Your original video appears on the main track. Generated voiceover segments and captions have their own tracks, so you can see how the narration lines up with the footage. The canvas previews the composition at the playhead, the marker for your current position in the video.
The canvas sits above the timeline, with the toolbar, save status, Autosave, History and Export video along the top.
| Area | What you can do |
|---|---|
| Canvas | Preview the composition and find canvas dimensions, Swap Dimensions, and Fit Items to Canvas. |
| Timeline | Select clips, move the playhead, and inspect when each element appears. Timeline zoom helps you examine shorter sections. |
| Properties | Select an item to see its controls. Caption, video, text, and audio selections show different properties. |
| Tracks and layers | Find separate video, audio, caption, and overlay clips. Use track controls and clip ordering to manage the composition. |
| Media | Find Upload files and Media Library. The media picker includes Images, Videos, Audio, and GIFs. |
| Toolbar | Find Add Text, Add Solid, Add Highlight, and Add Zoom Group. |
| Saving and History | Check Autosave and the save status, use manual Save, or open History. |
| Export | Find Export video and Export options. |
Use Script to return to the narration workspace. The script editing guide explains how to change the narration before generating voiceover.
Understanding freeze frames
When a generated voiceover segment is longer than its corresponding footage, VideoMule can hold the last frame while the narration finishes. These automatic freeze frames appear as light blue sections in the timeline. The darker blue sections represent the original video.
During a freeze frame, the image stays still while the audio continues. You do not need to create these automatic holds yourself. Preview the result after changing clip timing to check that the narration and visuals still line up.
Working with captions
VideoMule generates captions from your script and places them on a separate timeline layer. To correct the displayed words or timing:
- Select an existing caption clip on the timeline.
- Find the word or token in its properties.
- Use Caption text to change the displayed text. Caption start time and Caption end time control when that token appears.
- Preview the caption against the audio, then check that your changes are saved.
Selecting a caption clip opens its properties, where the displayed text and its timings can be corrected.
Caption edits change what viewers read. They do not by themselves change the spoken voiceover. If the narration also needs a correction, return to Script and follow Generating Your Video.
Caption styling options
Select a caption clip to inspect its font, colors, alignment, position, and other appearance controls. Adjust the placement so captions remain readable without covering important parts of the recording. Use the preview to check the selected caption in context.
Adding text overlays and callouts
Use Add Text for a title, label, or callout. Its timeline clip controls when the text appears and how long it stays on screen. Select the text element to open its properties.
Add Solid and Add Highlight provide other visual elements. Keep highlights clear of the information viewers need to read. Bring to front and Send to back control how overlapping items are ordered.
Canvas dimensions, Swap Dimensions, and Fit Items to Canvas are available for the overall composition. Preview the result after a layout change to check for unwanted cropping. Where Follow Video Zoom is available for an overlay, it relates that overlay to the video's zoom behavior.
Trimming and splitting clips
Select a clip before using the timeline's trimming, splitting, moving, or deletion controls. Splitting divides a clip into separate pieces so you can work with one section. Check the surrounding video, narration, and captions after a timing change.
Use the playhead to inspect the edited section. Timeline zoom lets you examine it more closely, and undo and redo let you work through editing actions.
Zoom and cursor controls
Timeline zoom changes how much of the timeline you see while editing. The video's Zoom controls change the image shown in the video.
Select a video clip to find Zoom and Cursor Data. Add Zoom Group is available from the toolbar, and Cursor Data includes Upload JSON for cursor metadata. These controls are separate from the Auto Zoom option used during generation.
Audio controls
Select an audio clip to inspect volume, fades, and playback speed. Track mute controls determine which tracks you hear. If your source recording contains audio, check it alongside the generated narration so they do not compete unexpectedly. You may want to retain useful sounds from the recording while adjusting their volume.
For additional audio, find Upload files or the Audio category in Media Library. These media entry points are separate from the generated voiceover controls.
Saving your edits
The editor includes an Autosave switch as well as manual Save. Autosave is on unless you turn it off, and saves pending changes about every 15 seconds. The switch is remembered in the browser you are using rather than in your account.
With Autosave enabled, use the save-status indicator to check whether changes have finished saving. With Autosave disabled, use Save to preserve your edits. Before leaving the editor or exporting, confirm that the latest changes are saved.
History
Open History to inspect the Edits and Exports views. Saved editor history, temporary undo/redo, script versions, and exported files are separate parts of the workflow.
History also includes Restore Timeline and Restore Original. Review the selected history entry and the restore action before applying it.
Preview and export
Preview the edited sections and confirm that your latest changes are saved. Use Export video and Export options to reach the output controls. See Rendering and Exporting for the export workflow.
Frequently asked questions
What are those light blue sections I see in the editor after generation?
They are automatic freeze frames that hold the image when narration needs more time than the corresponding footage. The darker blue sections represent your original video.
Does the editor save my work automatically?
The editor has an optional Autosave switch. Check its state and the save-status indicator. When Autosave is off, use Save to preserve your edits.
Why does the video stop moving while the audio keeps playing?
A freeze frame holds the image while the narration continues. This can happen when the voiceover segment is longer than its corresponding footage.
Can I edit what the captions say?
Yes. Select an existing caption clip and use Caption text to edit its displayed words. Caption start time and Caption end time adjust token timing. Changing caption text does not by itself change the spoken voiceover.
Do I need to save before rendering?
Confirm that your latest edits are saved before exporting. Check the save status when using Autosave, or use manual Save when Autosave is off.
Can I add background music to my video?
The editor includes audio controls and an Audio category in Media Library, alongside Upload files. For music, check the audio files available through these media entry points. Select an existing audio clip to inspect its volume, fades, and playback speed.
