Audio Overlay
The Audio Overlay node combines an audio track with a video. Use it to layer voiceover, music, or sound effects onto your video output.Inputs
Outputs
How it works
The Audio Overlay node takes a video and an audio input and mixes them together. The audio track is layered on top of the video’s existing audio (if any).Configuration options
In the visual editor most of these are auto-handled. For API runs, pass undermodel_overrides[step]:
Credit cost
Free — 0 credits. This node only combines existing media.Tips
- Place this after a Voiceover or AI Music node to combine the generated audio with your video
- Chain multiple Audio Overlay nodes to layer several audio tracks (e.g., voiceover + background music)
- The output video contains both the original and overlaid audio
Example use cases
- Mixing AI-generated voiceover onto a video
- Adding background music to a video that already has voiceover
- Layering sound effects onto a finished video