Mix Audio
Layer several audio tracks into one file, with a volume from 0 to 200% for each. Put a voiceover over music, or effects over an ambience, before adding video.
The Mix Audio node layers several audio tracks into one file, with a volume for each track from 0 to 200%. Use it to put a voiceover over background music, or sound effects over an ambience, and then send the mix to Merge Video & Audio.
When to use it
- Put a voiceover on top of background music.
- Combine sound effects with a music track.
- Mix dialogue with ambience for a cinematic scene.
- Build an audio bed from several generated tracks.
Quick start
Add the node
Press Tab on the canvas and choose Audio › Edit Audio › Mix Audio.
Connect the tracks
Wire two or more audio nodes into the Audio input.
Set the volumes
Open the settings panel. Each connected track has its own volume slider, from 0 to 200%. With more than one track, you can also drag the tracks into order.
Run it
Click Run on the node. The mix appears on the node with a player.
Input and output
| Input | Accepts | What it does |
|---|---|---|
| Audio | Two or more audio nodes | The tracks to layer. Each connected node appears in the track list. |
The output, Audio, is one mixed file.
Settings
| Setting | What it does |
|---|---|
| Track order | The connected tracks, listed by node name. Drag to reorder them. |
| Volume, per track | From 0 to 200%. The default is 100%. |
Tips
- Keep speech clear. Leave the voiceover at 100% and set background music between 30% and 50%.
- Boost with care. A volume above 100% can clip and distort. Level quiet sources with Adjust Volume first.
- Layer on purpose. Start with the voice, then add the music, then the effects.
- Listen before you move on. Check the mix on the node before you connect it to the next node.
- One track only? To change the volume of a single track, use Adjust Volume instead.
From the API
POST /v1/mix-audio takes audioUrls, a list of 2 to 20 tracks, and an optional trackVolumes. See Voice and media.
Frequently asked questions
Related
Combine Audio
Adjust Volume
Merge Video & Audio
Text to Audio
Last updated on
Combine Audio
Join audio clips end to end into one file, in the order you choose, and trim each clip first. For narration, podcasts and dialogue made in several parts.
Adjust Volume
Change the volume of an audio track or of a video's sound, level it with Normalize, and add a fade-in and a fade-out of up to 10 seconds each.