All prebuilt tools CHANGE VIDEO SPEED API
Change Video Speed
Speed video up or slow it down from 0.25x to 4x with pitch-corrected audio. Run the preset directly on this page or call the same agent-ready endpoint from your product.
BEFORE / AFTER
See what the tool changes.
A real example: the after side is the unedited output of a KinoPipe job. Run the live form above to generate the same result from your own media.
Demo footage: public-domain timelapses (Bureau of Land Management, Oregon · NASA SVS). Processed by the same pipeline the API and MCP tools call.
BUILT FOR AUTOMATION
Useful defaults, typed options.
The tool slug stays stable while your agent supplies named media inputs and a narrow set of documented options.
- 0.25x to 4x range
- Audio stays natural
- One typed request
What this preset does
- 01Retime video frames
- 02Stretch audio with pitch correction
- 03Keep A/V in sync
- 04Encode a delivery-ready MP4
Stable endpoint
POST /api/v1/tools/change-video-speedCONSTRAINTS
Know the boundaries before you run.
Factor is bounded between 0.25 and 4
FAQ
About change speed
Does the audio pitch change?
No. The audio is stretched with pitch correction, so voices stay natural at any supported factor.
Can I slow a video down?
Yes. A factor below 1 slows the video; 0.5 doubles its duration.
KEEP BUILDING