Change video speed
Slow down or speed up a clip with synchronized audio timing.
About Change video speed
Change a clip from quarter speed through four-times speed and review the resulting duration. Video timestamps and the soundtrack are adjusted together, rather than speeding only one track.
Steps, and limitations
How to use it
- Open a clip and choose a speed preset or slider value.
- Preview motion and review the calculated output duration.
- Export the retimed clip as MP4 or WebM.
Things to know
- Slowing down does not invent intermediate frames. Motion may look less smooth with low-frame-rate footage.
- Audio uses tempo filters to retain pitch approximately; inspect the export for artifacts, particularly at extreme speeds.