What is this tool?
Changes the video's playback speed to faster or slower, showing the new duration before processing.
What is it for?
- Speed up a long process recording to fit in one minute.
- Slow down a movement to study details.
- Match a clip's rhythm to the timing of a narration.
Step by step
- 1Upload the video.
- 2Choose the speed, from 0.25× to 4×.
- 3Check the estimated duration of the result.
- 4Process and download the file.
How to use it
Speed factor
2× plays the video twice as fast and halves the duration; 0.5× doubles the duration and makes motion slower.
Duration
Recalculated on the spot and shown before processing, which avoids surprises with the final size.
Audio
The track is played at the same speed. At extreme speeds the sound becomes too high or too low.
Examples in practice
Assembly time-lapse
A 10-minute assembly recording runs at 4× and becomes a two-and-a-half-minute video.
Movement study
A 10-second clip runs at 0.5× to analyse the sequence of a gesture.
Frequently asked questions
Does changing speed alter the audio pitch?
Yes, audio follows the chosen factor, so it gets higher when speeding up and lower when slowing down.
Is quality affected?
There is a re-recording, so the video goes through fresh compression in addition to the rhythm change.