Continuous narration
Lower music during speech while keeping it between phrases.
Lower music during speech
Automatically Balance Voice and Music — Demo
Try speech-triggered music ducking on prepared separate tracks.
Free tool
No credits used
How it works
- 1Upload your videoMP4 or MOV straight from your computer.
- 2We separate voice and musicUsually under a minute.
- 3Set the music level 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.
Compare speech and the gaps between phrases
Keep the music baseline fixed while toggling automatic ducking. Listen across a spoken phrase and the gap after it: the recorded voice levels change the music level over time. Manual balance holds a chosen level; ducking varies it with the sample speech.
Use cases
Hands-off sample mixing
Compare automatic changes with a fixed music level.
How to use this page
01
Set baseline music
Choose the baseline with the music slider.
02
Toggle ducking
Click Play current automatic volume settings, then check or uncheck Lower music during speech to compare the effect.
03
Compare gaps and speech
Listen across phrases; this demo uses the recorded volume levels of the supplied sample.
FAQ
Before you begin
Why keep the music slider still when comparing automatic volume changes?+
It lets you hear the time-varying reduction rather than a general volume change. Raising the baseline at the same time would mix two separate adjustments.
Is this AI source separation?+
No. The local demo uses pre-measured volume levels from the prepared voice track to lower music during speech.
When does the music get quieter?+
The demo follows the pre-measured volume levels of this sample narration. It reduces music during louder speech and eases it back between phrases.
Is it analysing my microphone live?+
No. It reads precomputed data for this prepared sample only. Disable automatic ducking to compare against a steady music level.
Try it on your own video
Free with a Sonilo account. Upload a video, preview the result and download the MP4.