Video Tools
Add Voiceover to Video
Choose a voiceover audio file, set its volume, and add it to a video.
Files stay in your browser. The processing engine downloads only when you start processing for the first time.
Tool guide
How to use Add Voiceover to Video
Overview
Choose a voiceover audio file, set its volume, and add it to a video. This guide explains a practical way to check the result before you use it.
How to use it
- Open Add Voiceover to Video and prepare a copy of the input you want to process.
- Select a video file and wait for the browser media engine to load.
- Choose the output format, dimensions, trim range, speed, filter, or other available option, then start processing.
- Preview the output where available and check the opening, ending, orientation, and sound before download.
Example
Process a 10-second test segment first to validate the chosen format and settings before exporting the full video.
Before you use the result
- Video processing runs locally in the browser after the media engine loads.
- Large or long videos can exceed browser memory, and re-encoding can change quality or take time.
FAQ
Questions people ask
What does Add Voiceover to Video do?
Choose a voiceover audio file, set its volume, and add it to a video.
How do I use Add Voiceover to Video?
Select a video file and wait for the browser media engine to load. Choose the output format, dimensions, trim range, speed, filter, or other available option, then start processing.
How should I check the result?
Preview the output where available and check the opening, ending, orientation, and sound before download.
Is an account required?
No. NovaKit tools are available for direct use without creating an account.
How is my input handled?
Video processing runs locally in the browser after the media engine loads.
What should I keep in mind?
Large or long videos can exceed browser memory, and re-encoding can change quality or take time.
What is a safe Add Voiceover to Video example?
Process a 10-second test segment first to validate the chosen format and settings before exporting the full video.
Can I keep a copy of the result?
Where output is generated, use the page’s copy, download, print, or export controls and keep the original input until you have verified the result.
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