01
Open Change Speed in Process
Open Process, then tap Change Speed.
02
Choose the video to process
In Select Video, tap Choose from Photos or Choose from Files and select your video. You can import a video even when the download list is empty.
03
Set speed and pitch behavior
Drag Speed and read the multiplier at the right and Estimated processed duration below. Confirm, then tap Start Processing.
Multiplier and duration
1x is original speed, above 1 is faster, and below 1 is slower. Duration is approximately the source duration divided by the multiplier: six seconds / 1.5 is about four seconds. Check the actual result.
Preserve Pitch*
This VIP option retains pitch while changing speed. Without it, pitch may change. Listen carefully to dialogue or singing after export.
Speed limits and fast-playback audio
The page lists 0.5x–2x as free. The wider 0.1x–32x range and pitch preservation need VIP. Speeds above 4x automatically remove audio.
04
Check the result, then save or keep processing
Play the output and check its pace, duration, and sound. If the result feels too fast or slow, adjust the multiplier and export again.
Preview and save
Play the result and check picture, duration, and sound, then tap Save to Photos. The first save may require permission to add photos and videos. After the success message, check the file in Photos.
What the other buttons do
Keep Processing takes the result into tool selection. Share File opens sharing options. Done closes the result page; it does not save to Photos.
Troubleshooting
Slower does not always mean smoother
Slow motion can reveal low source frame rate or motion blur. Compare a short sample rather than judging only by the multiplier.
Frequently asked questions
How long is a video at 2x?
Usually about half its original duration. Use the final output duration as the reference.
Why is there no audio at high speed?
The illustrated page explicitly states that speeds above 4x remove audio automatically.
Try it on your device
ClipDock is free to download, with in-app purchases. Features and available options depend on the current app version.
Download on the App Store