Powered by AI frame interpolation

AI Video Speed Changer

Slow 30fps footage to quarter speed and you get a slideshow; speed a tutorial up to 2x and the narrator turns into a chipmunk. Eliro fixes both ends — AI frame interpolation invents the in-between frames that smooth slow motion needs, and pitch correction keeps voices natural when you speed things up.

  • Smooth Slow-Mo from Standard 30fps Footage
  • Voices Stay Natural at 2x and Beyond
  • Ramp Speed Up and Down Mid-Clip
AI Video Speed Changer creating smooth slow motion and time-lapse effects

Speed Control That Survives the Export

Interpolated frames for slow motion, corrected pitch for speed-ups

Frames That Didn't Exist icon

Frames That Didn't Exist

The AI generates new in-between frames, so 30fps footage slowed to 10% plays like it was shot on a high-frame-rate camera instead of stuttering through repeats.

No Chipmunk Audio icon

No Chipmunk Audio

Tempo changes, pitch doesn't. A tutorial at 2x keeps the narrator's natural voice, and a slowed clip doesn't drop into a demonic rumble.

Speed Ramps icon

Speed Ramps

Decelerate into the trick, the goal, or the reveal, then accelerate out. Cinematic ramping curves — the backbone of sports, skate, and car edits.

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Per-Section Speeds

Run the intro at 1.5x, the highlight at quarter speed, and the outro at normal — different speeds for different segments, all in one export.

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Quick Presets

0.25x, 0.5x, 1.5x, 2x, 4x, 8x at a click — or type any custom value when the preset isn't quite right.

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Time-Lapse from Real Time

Compress hours of footage into seconds. AI stabilization smooths the accelerated motion so the time-lapse doesn't jitter.

Setting the Pace

Uploading a video to the AI speed changer
Step 1

Upload the Clip

Drop in your video or paste a URL — sports footage, tutorials, B-roll, anything in MP4, MOV, AVI, or MKV.

Adjusting video speed with AI frame interpolation preview
Step 2

Choose Speeds and Ramps

Pick a preset, type a custom value, or set different speeds per section. Preview the interpolated result before exporting.

Exporting speed-changed video with smooth playback
Step 3

Export Smooth Motion

Download the clip with fluid frames and natural-sounding audio at the new pace — or publish it straight to your platforms.

More Pacing Tools

Speed is one part of pacing — these cover the rest of the rhythm.

AI Video Trimmer icon

AI Video Trimmer

Sometimes the fix is cutting the slow part, not speeding through it.

AI Video Stabilizer icon

AI Video Stabilizer

Slow motion magnifies camera shake — stabilize before you slow down.

AI Video Merger icon

AI Video Merger

Join your ramped clips into one sequence with clean transitions.

AI Video Splitter icon

AI Video Splitter

Isolate the highlight before slowing it to quarter speed.

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AI Video Resizer

Export the finished edit at each platform's exact dimensions.

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AI Video Editor

Add zooms and cuts around your speed ramps in one timeline.

Learn more about what you can do

Related Pages

Speed Changing Questions

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