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How to Change Video Speed (Speed Changer Pro)
Adjust video playback speed while maintaining audio pitch for natural-sounding results.
Step-by-Step Guide
Upload Your Video
Click "Choose Video File" and select the video you want to speed up or slow down.
💡 Tip: Supported formats: MP4, AVI, MOV, WebM (max 500MB recommended)

Select Speed Preset
Choose from common presets (0.5x, 0.75x, 1.25x, 1.5x, 2x) or set a custom speed.
💡 Tip: 0.5x creates slow motion, 2x creates time-lapse effects
Enable Audio Pitch Correction
Keep "Maintain Audio Pitch" enabled for natural-sounding results, or disable for special effects.
💡 Tip: Pitch correction prevents "chipmunk" voices when speeding up
Preview Speed Change
Watch a short preview to see how the speed change affects your video.
💡 Tip: Previews help you choose the perfect speed before full processing
Apply Voice Effects (Optional)
Add voice effects like Robot, Echo, or Reverb to enhance your video.
💡 Tip: Use effects sparingly - they work best when intentional
Start Processing
Click "Change Speed" and wait for the AI to process your video with speed and pitch adjustments.
💡 Tip: Processing time depends on video length and speed change amount
Download Processed Video
Save your speed-adjusted video in MP4 format for sharing or further editing.
💡 Tip: Videos maintain original quality and sync between audio and video
💡 Pro Tips
- ✓Speed changes between 0.5x-2x work best for natural results
- ✓Very slow speeds (0.25x) may require audio pitch correction adjustments
- ✓Test different speeds to find the right pacing for your content
- ✓Consider your audience - faster speeds work well for tutorials, slower for dramatic effect
- ✓Maintain consistent audio quality by using the pitch correction feature
- ✓Use speed changes to emphasize important moments in your video
- ✓Preview before full processing to avoid re-rendering
Related Tools
Short Video Trimmer
Upload videos and trim them using a timeline scrubber with precise start and end controls.
Clip Joiner Tool
Upload multiple video clips, arrange their sequence, and merge them with smooth transitions.
Subtitle Burner
Upload videos and SRT subtitle files to permanently embed subtitles into the video.
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