Does AI-generated video come with sound?
No. Video, GIF and motion output on Communication Designer is silent WebM. Clips are built from generated keyframes and assembled in your browser, so there is no audio track to export.
For social use that is often fine — most feed video is watched muted and carries burned-in text. Add music or voice-over in any editor afterwards.
If you need a spoken script to go with the clip, generate it with the script tool and record or synthesise the voice separately.
Typical clip generation takes 60 to 180 seconds because every keyframe is a separate image generation.
事实
- Video run: 5 credits, 3 free runs
- Output: WebM, no audio track
- Typical runtime: 60–180 seconds
- Rendered client-side from keyframes