General mix balance
Balance two tracks when both levels need adjustment.
Core mixer
Adjust Background Music Volume
Control the music and voice tracks separately in the sample mix.
Free tool
No credits used
How it works
- 1Upload your videoMP4, MOV or M4V straight from your computer.
- 2We separate voice and musicUsually under a minute.
- 3Balance the two and download the MP4Preview every change before you export.
Free with a Sonilo account10 videos a day
Hear it on a sample first ↓Hear it on a sample
A prepared clip you can play right now. Nothing is uploaded.
Sample comparison studio
The original version uses the starting volumes. The adjusted version uses your current settings; the picture stays the same.
Build a balance from two separate levels
Start by setting a comfortable narration level, then bring in music. Compare the resulting balance with the reference rather than making both tracks louder together. If only music needs to change, the reduction page offers fixed steps and keeps the voice unchanged.
Use cases
Background atmosphere
Keep music audible without overwhelming speech.
How it works
What you bring and what you get
01
Upload the video
- You bring
- An MP4, MOV or M4V clip, 5 seconds to 3 minutes on Free.
- You get
- Voice and music on separate tracks, usually in under a minute.
02
Set the two levels
- You bring
- A voice level and a music level from the sliders.
- You get
- A live preview of the new balance.
03
Download the MP4
- You bring
- A free Sonilo account.
- You get
- An MP4 with the speech sitting on top of the music.
FAQ
Before you begin
Why can a quieter mix sound clearer?+
Within this sample you can lower the music while preserving speech. That makes it easier to focus on the spoken instructions without raising the whole playback volume.
Does the slider change the whole clip?+
Music and voice have separate controls because this sample supplies two prepared tracks.
Can I save my adjusted mix?+
This page previews your slider settings but does not export a custom mix. Recreate the chosen balance in your editor using separate voice and music tracks.
Can I compare my mix with the reference?+
Use the original playback button for the prepared reference. Use the adjusted playback button for your current slider values; your settings remain available while comparing.
Try it on your own video
Free with a Sonilo account. Upload a video, preview the result and download the MP4.