Replace the audio in a video.
New sound, same picture.
Swap the sound of a video for a song, a voice recording or the sound of another clip, and get the new MP4 with its own link.
Drop photos, videos or files here — or paste an image with Ctrl+V
Your links
Download a video
Download only what you have the right to use. Files stay on BasePic for one hour.
How it works
- Upload a video
Tap Upload video and pick an MP4, MOV, WebM or another video, up to 2 GB.
- Choose the new sound
The editor opens on Sound. Tap Change soundtrack and pick the new audio: an MP3, M4A, WAV, OGG or FLAC file, or a video whose sound you want.
- Save
Replace is already selected, so only the new sound plays. Tap Replace sound now — the new video gets its own link and a Download button.
Sound from another video
Pick a video file instead of a sound file, and its sound is used as the new audio.
Line it up
Starts at skips the beginning of the new sound, so the part you want plays from the first second. A shorter sound repeats until the end of the video; turn off Repeat if shorter to let it stop.
The picture stays as it is
When you only change the sound, and cut nothing from the start, the picture is copied without re-encoding, so it looks exactly the same. WebM videos in the older VP8 format, and a few other formats that MP4 can’t hold, are re-encoded at good quality instead.
Or keep both
Choose Mix instead of Replace to play the new sound over the video’s own sound, and set the volume of each.
Replace audio in video: questions
How do I replace the audio in a video?
Upload the video, tap Change soundtrack under Sound, pick the new audio and tap Replace sound now.
Will the video quality change?
No, as long as you only change the sound and keep the start. Other edits re-encode the video at good quality, and so does a VP8 WebM or another format that MP4 can’t hold.
What if the new audio is shorter than the video?
It repeats until the video ends. Turn off Repeat if shorter, and the rest of the video is silent.
Can I remove the sound instead?
Yes. Tap Mute under Sound — see Remove audio from video.
Is it free?
Yes. No sign-up and no watermark.