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

  1. 1Upload your videoMP4 or MOV straight from your computer.
  2. 2We separate voice and musicUsually under a minute.
  3. 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

General mix balance

Balance two tracks when both levels need adjustment.

Background atmosphere

Keep music audible without overwhelming speech.

How to use this page

01

Set speech

Move the voice slider to a comfortable level.

02

Set music

Move the music slider to balance the prepared tracks.

03

Compare the mix

Switch to the original version, then back to your settings.

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.