Edit video
Change the speed of a clip to fit a fixed length, to slow a movement down, or to cut dead time without losing the words. Aixcut adjusts video speed in a desktop Chrome or Edge workspace, and keeps the audio in the same project so you can check both together.
STEP 01
Add the clip and mark only the part whose speed should change, so the rest of the edit keeps its natural pace.
STEP 02
Choose a faster or slower rate, then preview the result rather than trusting the number alone.
STEP 03
Decide whether the sound follows the new speed, adjust the pitch or mute it, then export.
Changing the rate alters both the duration and the audio pitch. Speeding a clip up can turn a voice into a chipmunk, and slowing it down can make it sound unnaturally deep. Decide first whether the sound should follow the picture or be replaced, and mute or detach it when the new pitch does not work.
Speeding up works for timelapse, repeated actions, screen recordings of long processes and B-roll that only needs to suggest an activity. It rarely works for dialogue, because viewers notice the altered voice immediately and it reads as a mistake rather than a style.
Slowing footage down is for showing a movement in detail: a product turning, a hand gesture, a reaction. Slow enough and the source needs a high frame rate, otherwise the result looks stuttered, so check the original before you go far below normal speed.
Common questions about this task, its limits and how to judge the result.
Add the clip, mark the section, set a faster or slower rate, and preview it. Decide separately what happens to the audio.
Yes, sound follows the picture unless you detach, replace or mute it. Faster speeds raise the pitch and slower speeds lower it.
Yes. Mark the section before applying the change so the rest of the clip keeps its original pacing.
The source was recorded at a frame rate that cannot support the slower playback. Slow less, or start from higher frame rate footage.
Trial access and export options follow the current workspace rules. Preview the changed audio as well as the picture before publishing.
