Add Audio to Video
Put music or a voice-over on a video.
Drop more files anywhere on this page, or
or drop it here
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Runs on your device. No upload wait.
What you get
- Music or voice
- Mix or replace
Questions
How do I add background music to a video?
Open the video and the song, choose Mix with it to keep the voices, and set the music to 25% or 50%. Leave Repeat on if the song is shorter than the video, and the fade out on so the music doesn’t stop abruptly.
Can I start the music later in the video?
Yes. Type a time in Starts at (like 0:12.5), or play the video, pause where the sound should begin and press At the playhead.
Is the video re-encoded?
No: the picture is copied as it is, so its quality doesn’t change and it’s quick. Only the sound is new, encoded as AAC (or Opus in WebM files). The result has the video’s length; extra sound is cut off at the end.
Can I use the sound from another video?
Yes. Choose a video file as the sound to add, and its soundtrack is used.
Are my videos and audio files uploaded anywhere?
No. Your videos and audio files are opened and processed on your device, and the results are saved straight back to it. Nothing is uploaded. How to check.
Is it free? Do I need an account?
It is free to use and there is nothing to sign up for. There are no watermarks and no daily limits.
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