Sound for an existing video
How to add sound to a silent clip: file requirements, description and choosing a model.
The “Sound for video” tab returns the same clip with a generated soundtrack: footsteps, engines, wind, music — matching what happens in the frame.
What to upload
- a video in MP4, MOV or WebM — up to 100 MB and up to 60 seconds;
- or pick a clip from “My generations”;
- some models have lower limits (for example, up to 30 seconds) — the form tells you.
Describing the sound
The description is usually optional: leave it empty and the model will choose the sound itself. If you want something specific, describe it. Some models require a description and some don’t accept one at all; the form shows this for the selected model.
Choosing a model
Models come with samples — all of them on the same clip, so they are easy to compare before spending credits. The price is mostly based on the seconds of the source video.
Want to lay your own voice-over or music over the clip instead of generated noises? Use Audio merge.