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, MOV or M4V 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 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
Lower the music during speech
- You bring
- The switch turned on and a music level.
- You get
- Music that dips while someone talks and comes back up in the gaps.
03
Download the MP4
- You bring
- A free Sonilo account.
- You get
- An MP4 where the music steps aside for the voice.
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.